Don't search filesystem mounts in docker build step (#10131) (#10194)

Limit find cmd to /usr/ where __pycache__ files are located

Co-authored-by: Mateusz Mojsiejuk <m@fishface.se>

.ansible-lint

@@ -24,7 +24,17 @@ skip_list:
   # (Disabled in June 2021)
   - 'role-name'
 
+  - 'experimental'
   # [var-naming] "defaults/main.yml" File defines variable 'apiVersion' that violates variable naming standards
   # In Kubespray we use variables that use camelCase to match their k8s counterparts
   # (Disabled in June 2021)
   - 'var-naming'
+  - 'var-spacing'
+
+  # [fqcn-builtins]
+  # Roles in kubespray don't need fully qualified collection names
+  # (Disabled in Feb 2023)
+  - 'fqcn-builtins'
+exclude_paths:
+  # Generated files
+  - tests/files/custom_cni/cilium.yaml

.gitignore

@@ -3,14 +3,19 @@
 **/vagrant_ansible_inventory
 *.iml
 temp
+contrib/offline/offline-files
+contrib/offline/offline-files.tar.gz
 .idea
+.vscode
 .tox
 .cache
 *.bak
 *.tfstate
 *.tfstate.backup
+*.lock.hcl
 .terraform/
 contrib/terraform/aws/credentials.tfvars
+.terraform.lock.hcl
 /ssh-bastion.conf
 **/*.sw[pon]
 *~
@@ -102,10 +107,14 @@ ENV/
 
 # molecule
 roles/**/molecule/**/__pycache__/
-roles/**/molecule/**/*.conf
 
 # macOS
 .DS_Store
 
 # Temp location used by our scripts
 scripts/tmp/
+tmp.md
+
+# Ansible collection files
+kubernetes_sigs-kubespray*tar.gz
+ansible_collections

.gitlab-ci.yml

@@ -1,5 +1,6 @@
 ---
 stages:
+  - build
   - unit-tests
   - deploy-part1
   - moderator
@@ -8,12 +9,12 @@ stages:
   - deploy-special
 
 variables:
-  KUBESPRAY_VERSION: v2.17.1
+  KUBESPRAY_VERSION: v2.21.0
   FAILFASTCI_NAMESPACE: 'kargo-ci'
   GITLAB_REPOSITORY: 'kargo-ci/kubernetes-sigs-kubespray'
   ANSIBLE_FORCE_COLOR: "true"
   MAGIC: "ci check this"
-  TEST_ID: "$CI_PIPELINE_ID-$CI_BUILD_ID"
+  TEST_ID: "$CI_PIPELINE_ID-$CI_JOB_ID"
   CI_TEST_VARS: "./tests/files/${CI_JOB_NAME}.yml"
   CI_TEST_REGISTRY_MIRROR: "./tests/common/_docker_hub_registry_mirror.yml"
   CI_TEST_SETTING: "./tests/common/_kubespray_test_settings.yml"
@@ -27,13 +28,15 @@ variables:
   ANSIBLE_INVENTORY: ./inventory/sample/${CI_JOB_NAME}-${BUILD_NUMBER}.ini
   IDEMPOT_CHECK: "false"
   RESET_CHECK: "false"
+  REMOVE_NODE_CHECK: "false"
   UPGRADE_TEST: "false"
   MITOGEN_ENABLE: "false"
   ANSIBLE_LOG_LEVEL: "-vv"
   RECOVER_CONTROL_PLANE_TEST: "false"
   RECOVER_CONTROL_PLANE_TEST_GROUPS: "etcd[2:],kube_control_plane[1:]"
-  TERRAFORM_VERSION: 1.0.8
-  ANSIBLE_MAJOR_VERSION: "2.10"
+  TERRAFORM_VERSION: 1.3.7
+  ANSIBLE_MAJOR_VERSION: "2.11"
+  PIPELINE_IMAGE: "$CI_REGISTRY_IMAGE/pipeline:${CI_PIPELINE_ID}-${CI_COMMIT_SHORT_SHA}"
 
 before_script:
   - ./tests/scripts/rebase.sh
@@ -45,7 +48,7 @@ before_script:
 .job: &job
   tags:
     - packet
-  image: quay.io/kubespray/kubespray:$KUBESPRAY_VERSION
+  image: $PIPELINE_IMAGE
   artifacts:
     when: always
     paths:
@@ -75,8 +78,10 @@ ci-authorized:
   only: []
 
 include:
+  - .gitlab-ci/build.yml
   - .gitlab-ci/lint.yml
   - .gitlab-ci/shellcheck.yml
   - .gitlab-ci/terraform.yml
   - .gitlab-ci/packet.yml
   - .gitlab-ci/vagrant.yml
+  - .gitlab-ci/molecule.yml

.gitlab-ci/build.yml

@@ -0,0 +1,40 @@
+---
+.build:
+  stage: build
+  image:
+    name: moby/buildkit:rootless
+    entrypoint: [""]
+  variables:
+    BUILDKITD_FLAGS: --oci-worker-no-process-sandbox
+  before_script:
+    - mkdir ~/.docker
+    - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > ~/.docker/config.json
+
+pipeline image:
+  extends: .build
+  script:
+    - |
+      buildctl-daemonless.sh build \
+        --frontend=dockerfile.v0 \
+        --local context=. \
+        --local dockerfile=. \
+        --opt filename=./pipeline.Dockerfile \
+        --output type=image,name=$PIPELINE_IMAGE,push=true \
+        --import-cache type=registry,ref=$CI_REGISTRY_IMAGE/pipeline:cache
+  rules:
+    - if: '$CI_COMMIT_REF_NAME != $CI_DEFAULT_BRANCH'
+
+pipeline image and build cache:
+  extends: .build
+  script:
+    - |
+      buildctl-daemonless.sh build \
+        --frontend=dockerfile.v0 \
+        --local context=. \
+        --local dockerfile=. \
+        --opt filename=./pipeline.Dockerfile \
+        --output type=image,name=$PIPELINE_IMAGE,push=true \
+        --import-cache type=registry,ref=$CI_REGISTRY_IMAGE/pipeline:cache \
+        --export-cache type=registry,ref=$CI_REGISTRY_IMAGE/pipeline:cache,mode=max
+  rules:
+    - if: '$CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH'

.gitlab-ci/lint.yml

@@ -14,7 +14,7 @@ vagrant-validate:
   stage: unit-tests
   tags: [light]
   variables:
-    VAGRANT_VERSION: 2.2.19
+    VAGRANT_VERSION: 2.3.4
   script:
     - ./tests/scripts/vagrant-validate.sh
   except: ['triggers', 'master']
@@ -23,9 +23,8 @@ ansible-lint:
   extends: .job
   stage: unit-tests
   tags: [light]
-  # lint every yml/yaml file that looks like it contains Ansible plays
-  script: |-
-    grep -Rl '^- hosts: \|^  hosts: ' --include \*.yml --include \*.yaml . | xargs -P 4 -n 25 ansible-lint -v
+  script:
+    - ansible-lint -v
   except: ['triggers', 'master']
 
 syntax-check:
@@ -40,11 +39,28 @@ syntax-check:
     ANSIBLE_VERBOSITY: "3"
   script:
     - ansible-playbook --syntax-check cluster.yml
+    - ansible-playbook --syntax-check playbooks/cluster.yml
     - ansible-playbook --syntax-check upgrade-cluster.yml
+    - ansible-playbook --syntax-check playbooks/upgrade_cluster.yml
     - ansible-playbook --syntax-check reset.yml
+    - ansible-playbook --syntax-check playbooks/reset.yml
     - ansible-playbook --syntax-check extra_playbooks/upgrade-only-k8s.yml
   except: ['triggers', 'master']
 
+collection-build-install-sanity-check:
+  extends: .job
+  stage: unit-tests
+  tags: [light]
+  variables:
+    ANSIBLE_COLLECTIONS_PATH: "./ansible_collections"
+  script:
+    - ansible-galaxy collection build
+    - ansible-galaxy collection install kubernetes_sigs-kubespray-$(grep "^version:" galaxy.yml | awk '{print $2}').tar.gz
+    - ansible-galaxy collection list $(egrep -i '(name:\s+|namespace:\s+)' galaxy.yml | awk '{print $2}' | tr '\n' '.' | sed 's|\.$||g') | grep "^kubernetes_sigs.kubespray"
+    - test -f ansible_collections/kubernetes_sigs/kubespray/playbooks/cluster.yml
+    - test -f ansible_collections/kubernetes_sigs/kubespray/playbooks/reset.yml
+  except: ['triggers', 'master']
+
 tox-inventory-builder:
   stage: unit-tests
   tags: [light]
@@ -53,7 +69,7 @@ tox-inventory-builder:
     - ./tests/scripts/rebase.sh
     - apt-get update && apt-get install -y python3-pip
     - update-alternatives --install /usr/bin/python python /usr/bin/python3 10
-    - python -m pip uninstall -y ansible
+    - python -m pip uninstall -y ansible ansible-base ansible-core
     - python -m pip install -r tests/requirements.txt
   script:
     - pip3 install tox
@@ -69,6 +85,27 @@ markdownlint:
   script:
     - markdownlint $(find . -name '*.md' | grep -vF './.git') --ignore docs/_sidebar.md --ignore contrib/dind/README.md
 
+check-readme-versions:
+  stage: unit-tests
+  tags: [light]
+  image: python:3
+  script:
+    - tests/scripts/check_readme_versions.sh
+
+check-galaxy-version:
+  stage: unit-tests
+  tags: [light]
+  image: python:3
+  script:
+    - tests/scripts/check_galaxy_version.sh
+
+check-typo:
+  stage: unit-tests
+  tags: [light]
+  image: python:3
+  script:
+    - tests/scripts/check_typo.sh
+
 ci-matrix:
   stage: unit-tests
   tags: [light]

.gitlab-ci/molecule.yml

@@ -0,0 +1,86 @@
+---
+
+.molecule:
+  tags: [c3.small.x86]
+  only: [/^pr-.*$/]
+  except: ['triggers']
+  image: $PIPELINE_IMAGE
+  services: []
+  stage: deploy-part1
+  before_script:
+    - tests/scripts/rebase.sh
+    - apt-get update && apt-get install -y python3-pip
+    - update-alternatives --install /usr/bin/python python /usr/bin/python3 10
+    - python -m pip uninstall -y ansible ansible-base ansible-core
+    - python -m pip install -r tests/requirements.txt
+    - ./tests/scripts/vagrant_clean.sh
+  script:
+    - ./tests/scripts/molecule_run.sh
+  after_script:
+    - chronic ./tests/scripts/molecule_logs.sh
+  artifacts:
+    when: always
+    paths:
+      - molecule_logs/
+
+# CI template for periodic CI jobs
+# Enabled when PERIODIC_CI_ENABLED var is set
+.molecule_periodic:
+  only:
+    variables:
+      - $PERIODIC_CI_ENABLED
+  allow_failure: true
+  extends: .molecule
+
+molecule_full:
+  extends: .molecule_periodic
+
+molecule_no_container_engines:
+  extends: .molecule
+  script:
+    - ./tests/scripts/molecule_run.sh -e container-engine
+  when: on_success
+
+molecule_docker:
+  extends: .molecule
+  script:
+    - ./tests/scripts/molecule_run.sh -i container-engine/cri-dockerd
+  when: on_success
+
+molecule_containerd:
+  extends: .molecule
+  script:
+    - ./tests/scripts/molecule_run.sh -i container-engine/containerd
+  when: on_success
+
+molecule_cri-o:
+  extends: .molecule
+  stage: deploy-part2
+  script:
+    - ./tests/scripts/molecule_run.sh -i container-engine/cri-o
+  when: on_success
+
+# Stage 3 container engines don't get as much attention so allow them to fail
+molecule_kata:
+  extends: .molecule
+  stage: deploy-part3
+  allow_failure: true
+  script:
+    - ./tests/scripts/molecule_run.sh -i container-engine/kata-containers
+  when: on_success
+
+molecule_gvisor:
+  extends: .molecule
+  stage: deploy-part3
+  allow_failure: true
+  script:
+    - ./tests/scripts/molecule_run.sh -i container-engine/gvisor
+  when: on_success
+
+molecule_youki:
+  extends: .molecule
+  stage: deploy-part3
+  allow_failure: true
+  script:
+    - ./tests/scripts/molecule_run.sh -i container-engine/youki
+  when: on_success

.gitlab-ci/packet.yml

@@ -31,18 +31,9 @@ packet_ubuntu20-calico-aio:
   variables:
     RESET_CHECK: "true"
 
-# Exericse ansible variants
-packet_ubuntu20-calico-aio-ansible-2_9:
-  stage: deploy-part1
-  extends: .packet_pr
-  when: on_success
-  variables:
-    ANSIBLE_MAJOR_VERSION: "2.9"
-    RESET_CHECK: "true"
-
 packet_ubuntu20-calico-aio-ansible-2_11:
   stage: deploy-part1
-  extends: .packet_pr
+  extends: .packet_periodic
   when: on_success
   variables:
     ANSIBLE_MAJOR_VERSION: "2.11"
@@ -60,17 +51,32 @@ packet_ubuntu20-aio-docker:
   extends: .packet_pr
   when: on_success
 
+packet_ubuntu20-calico-aio-hardening:
+  stage: deploy-part2
+  extends: .packet_pr
+  when: on_success
+
 packet_ubuntu18-calico-aio:
   stage: deploy-part2
   extends: .packet_pr
   when: on_success
 
+packet_ubuntu22-aio-docker:
+  stage: deploy-part2
+  extends: .packet_pr
+  when: on_success
+
+packet_ubuntu22-calico-aio:
+  stage: deploy-part2
+  extends: .packet_pr
+  when: on_success
+
 packet_centos7-flannel-addons-ha:
   extends: .packet_pr
   stage: deploy-part2
   when: on_success
 
-packet_centos8-crio:
+packet_almalinux8-crio:
   extends: .packet_pr
   stage: deploy-part2
   when: on_success
@@ -85,31 +91,11 @@ packet_fedora35-crio:
   stage: deploy-part2
   when: manual
 
-packet_ubuntu16-canal-ha:
-  stage: deploy-part2
-  extends: .packet_periodic
-  when: on_success
-
-packet_ubuntu16-canal-sep:
-  stage: deploy-special
-  extends: .packet_pr
-  when: manual
-
 packet_ubuntu16-flannel-ha:
   stage: deploy-part2
   extends: .packet_pr
   when: manual
 
-packet_ubuntu16-kube-router-sep:
-  stage: deploy-part2
-  extends: .packet_pr
-  when: manual
-
-packet_ubuntu16-kube-router-svc-proxy:
-  stage: deploy-part2
-  extends: .packet_pr
-  when: manual
-
 packet_debian10-cilium-svc-proxy:
   stage: deploy-part2
   extends: .packet_periodic
@@ -145,34 +131,41 @@ packet_centos7-calico-ha-once-localhost:
   services:
     - docker:19.03.9-dind
 
-packet_centos8-kube-ovn:
+packet_almalinux8-kube-ovn:
   stage: deploy-part2
   extends: .packet_periodic
   when: on_success
 
-packet_centos8-calico:
+packet_almalinux8-calico:
   stage: deploy-part2
   extends: .packet_pr
   when: on_success
 
-packet_centos8-docker:
+packet_rockylinux8-calico:
   stage: deploy-part2
   extends: .packet_pr
   when: on_success
 
-packet_fedora34-docker-weave:
+packet_rockylinux9-calico:
   stage: deploy-part2
   extends: .packet_pr
   when: on_success
 
-packet_fedora35-kube-router:
+packet_rockylinux9-cilium:
+  stage: deploy-part2
+  extends: .packet_pr
+  when: on_success
+  variables:
+    RESET_CHECK: "true"
+
+packet_almalinux8-docker:
   stage: deploy-part2
   extends: .packet_pr
   when: on_success
 
-packet_opensuse-canal:
+packet_fedora36-docker-weave:
   stage: deploy-part2
-  extends: .packet_periodic
+  extends: .packet_pr
   when: on_success
 
 packet_opensuse-docker-cilium:
@@ -203,12 +196,12 @@ packet_ubuntu18-flannel-ha-once:
   when: manual
 
 # Calico HA eBPF
-packet_centos8-calico-ha-ebpf:
+packet_almalinux8-calico-ha-ebpf:
   stage: deploy-part2
   extends: .packet_pr
   when: manual
 
-packet_debian9-macvlan:
+packet_debian10-macvlan:
   stage: deploy-part2
   extends: .packet_pr
   when: manual
@@ -218,29 +211,19 @@ packet_centos7-calico-ha:
   extends: .packet_pr
   when: manual
 
-packet_centos7-kube-router:
-  stage: deploy-part2
-  extends: .packet_pr
-  when: manual
-
 packet_centos7-multus-calico:
   stage: deploy-part2
   extends: .packet_pr
   when: manual
 
-packet_oracle7-canal-ha:
-  stage: deploy-part2
-  extends: .packet_pr
-  when: manual
-
-packet_fedora35-docker-calico:
+packet_fedora36-docker-calico:
   stage: deploy-part2
   extends: .packet_periodic
   when: on_success
   variables:
     RESET_CHECK: "true"
 
-packet_fedora34-calico-selinux:
+packet_fedora35-calico-selinux:
   stage: deploy-part2
   extends: .packet_periodic
   when: on_success
@@ -255,20 +238,37 @@ packet_amazon-linux-2-aio:
   extends: .packet_pr
   when: manual
 
-packet_centos8-calico-nodelocaldns-secondary:
+packet_almalinux8-calico-nodelocaldns-secondary:
   stage: deploy-part2
   extends: .packet_pr
   when: manual
 
-packet_fedora34-kube-ovn:
+packet_fedora36-kube-ovn:
   stage: deploy-part2
   extends: .packet_periodic
   when: on_success
 
+packet_debian11-custom-cni:
+  stage: deploy-part2
+  extends: .packet_pr
+  when: manual
+
+packet_debian11-kubelet-csr-approver:
+  stage: deploy-part2
+  extends: .packet_pr
+  when: manual
+
 # ### PR JOBS PART3
 # Long jobs (45min+)
 
-packet_centos7-docker-weave-upgrade-ha:
+packet_centos7-weave-upgrade-ha:
+  stage: deploy-part3
+  extends: .packet_periodic
+  when: on_success
+  variables:
+    UPGRADE_TEST: basic
+
+packet_ubuntu20-calico-etcd-kubeadm-upgrade-ha:
   stage: deploy-part3
   extends: .packet_periodic
   when: on_success
@@ -281,14 +281,27 @@ packet_ubuntu20-calico-ha-wireguard:
   extends: .packet_pr
   when: manual
 
-packet_debian10-calico-upgrade:
+packet_debian11-calico-upgrade:
   stage: deploy-part3
   extends: .packet_pr
   when: on_success
   variables:
     UPGRADE_TEST: graceful
 
-packet_debian10-calico-upgrade-once:
+packet_almalinux8-calico-remove-node:
+  stage: deploy-part3
+  extends: .packet_pr
+  when: on_success
+  variables:
+    REMOVE_NODE_CHECK: "true"
+    REMOVE_NODE_NAME: "instance-3"
+
+packet_ubuntu20-calico-etcd-kubeadm:
+  stage: deploy-part3
+  extends: .packet_pr
+  when: on_success
+
+packet_debian11-calico-upgrade-once:
   stage: deploy-part3
   extends: .packet_periodic
   when: on_success

.gitlab-ci/shellcheck.yml

@@ -11,6 +11,6 @@ shellcheck:
     - cp shellcheck-"${SHELLCHECK_VERSION}"/shellcheck /usr/bin/
     - shellcheck --version
   script:
-    # Run shellcheck for all *.sh except contrib/
-    - find . -name '*.sh' -not -path './contrib/*' -not -path './.git/*' | xargs shellcheck --severity error
+    # Run shellcheck for all *.sh
+    - find . -name '*.sh' -not -path './.git/*' | xargs shellcheck --severity error
   except: ['triggers', 'master']

.gitlab-ci/terraform.yml

@@ -60,11 +60,11 @@ tf-validate-openstack:
     PROVIDER: openstack
     CLUSTER: $CI_COMMIT_REF_NAME
 
-tf-validate-packet:
+tf-validate-equinix:
   extends: .terraform_validate
   variables:
     TF_VERSION: $TERRAFORM_VERSION
-    PROVIDER: packet
+    PROVIDER: equinix
     CLUSTER: $CI_COMMIT_REF_NAME
 
 tf-validate-aws:
@@ -80,6 +80,12 @@ tf-validate-exoscale:
     TF_VERSION: $TERRAFORM_VERSION
     PROVIDER: exoscale
 
+tf-validate-hetzner:
+  extends: .terraform_validate
+  variables:
+    TF_VERSION: $TERRAFORM_VERSION
+    PROVIDER: hetzner
+
 tf-validate-vsphere:
   extends: .terraform_validate
   variables:
@@ -104,7 +110,7 @@ tf-validate-upcloud:
 #     TF_VAR_number_of_k8s_nodes: "1"
 #     TF_VAR_plan_k8s_masters: t1.small.x86
 #     TF_VAR_plan_k8s_nodes: t1.small.x86
-#     TF_VAR_facility: ewr1
+#     TF_VAR_metro: ny
 #     TF_VAR_public_key_path: ""
 #     TF_VAR_operating_system: ubuntu_16_04
 #
@@ -118,7 +124,7 @@ tf-validate-upcloud:
 #     TF_VAR_number_of_k8s_nodes: "1"
 #     TF_VAR_plan_k8s_masters: t1.small.x86
 #     TF_VAR_plan_k8s_nodes: t1.small.x86
-#     TF_VAR_facility: ams1
+#     TF_VAR_metro: am
 #     TF_VAR_public_key_path: ""
 #     TF_VAR_operating_system: ubuntu_18_04
 

.gitlab-ci/vagrant.yml

@@ -1,28 +1,5 @@
 ---
 
-molecule_tests:
-  tags: [c3.small.x86]
-  only: [/^pr-.*$/]
-  except: ['triggers']
-  image: quay.io/kubespray/vagrant:$KUBESPRAY_VERSION
-  services: []
-  stage: deploy-part1
-  before_script:
-    - tests/scripts/rebase.sh
-    - apt-get update && apt-get install -y python3-pip
-    - update-alternatives --install /usr/bin/python python /usr/bin/python3 10
-    - python -m pip uninstall -y ansible
-    - python -m pip install -r tests/requirements.txt
-    - ./tests/scripts/vagrant_clean.sh
-  script:
-    - ./tests/scripts/molecule_run.sh
-  after_script:
-    - chronic ./tests/scripts/molecule_logs.sh
-  artifacts:
-    when: always
-    paths:
-      - molecule_logs/
-
 .vagrant:
   extends: .testcases
   variables:
@@ -33,12 +10,12 @@ molecule_tests:
   tags: [c3.small.x86]
   only: [/^pr-.*$/]
   except: ['triggers']
-  image: quay.io/kubespray/vagrant:$KUBESPRAY_VERSION
+  image: $PIPELINE_IMAGE
   services: []
   before_script:
     - apt-get update && apt-get install -y python3-pip
     - update-alternatives --install /usr/bin/python python /usr/bin/python3 10
-    - python -m pip uninstall -y ansible
+    - python -m pip uninstall -y ansible ansible-base ansible-core
     - python -m pip install -r tests/requirements.txt
     - ./tests/scripts/vagrant_clean.sh
   script:
@@ -66,3 +43,30 @@ vagrant_ubuntu20-flannel:
   stage: deploy-part2
   extends: .vagrant
   when: on_success
+  allow_failure: false
+
+vagrant_ubuntu20-flannel-collection:
+  stage: deploy-part2
+  extends: .vagrant
+  when: on_success
+
+vagrant_ubuntu16-kube-router-sep:
+  stage: deploy-part2
+  extends: .vagrant
+  when: manual
+
+# Service proxy test fails connectivity testing
+vagrant_ubuntu16-kube-router-svc-proxy:
+  stage: deploy-part2
+  extends: .vagrant
+  when: manual
+
+vagrant_fedora35-kube-router:
+  stage: deploy-part2
+  extends: .vagrant
+  when: on_success
+
+vagrant_centos7-kube-router:
+  stage: deploy-part2
+  extends: .vagrant
+  when: manual

.markdownlint.yaml

@@ -1,2 +1,3 @@
 ---
 MD013: false
+MD029: false

.pre-commit-config.yaml

@@ -0,0 +1,71 @@
+---
+repos:
+
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.4.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-case-conflict
+      - id: check-executables-have-shebangs
+      - id: check-xml
+      - id: check-merge-conflict
+      - id: detect-private-key
+      - id: end-of-file-fixer
+      - id: forbid-new-submodules
+      - id: requirements-txt-fixer
+      - id: trailing-whitespace
+
+  - repo: https://github.com/adrienverge/yamllint.git
+    rev: v1.27.1
+    hooks:
+      - id: yamllint
+        args: [--strict]
+
+  - repo: https://github.com/markdownlint/markdownlint
+    rev: v0.11.0
+    hooks:
+      - id: markdownlint
+        args: [ -r, "~MD013,~MD029" ]
+        exclude: "^.git"
+
+  - repo: https://github.com/jumanjihouse/pre-commit-hooks
+    rev: 3.0.0
+    hooks:
+      - id: shellcheck
+        args: [ --severity, "error" ]
+        exclude: "^.git"
+        files: "\\.sh$"
+
+  - repo: local
+    hooks:
+      - id: ansible-lint
+        name: ansible-lint
+        entry: ansible-lint -v
+        language: python
+        pass_filenames: false
+        additional_dependencies:
+          - .[community]
+
+      - id: ansible-syntax-check
+        name: ansible-syntax-check
+        entry: env ANSIBLE_INVENTORY=inventory/local-tests.cfg ANSIBLE_REMOTE_USER=root ANSIBLE_BECOME="true" ANSIBLE_BECOME_USER=root ANSIBLE_VERBOSITY="3" ansible-playbook --syntax-check
+        language: python
+        files: "^cluster.yml|^upgrade-cluster.yml|^reset.yml|^extra_playbooks/upgrade-only-k8s.yml"
+
+      - id: tox-inventory-builder
+        name: tox-inventory-builder
+        entry: bash -c "cd contrib/inventory_builder && tox"
+        language: python
+        pass_filenames: false
+
+      - id: check-readme-versions
+        name: check-readme-versions
+        entry: tests/scripts/check_readme_versions.sh
+        language: script
+        pass_filenames: false
+
+      - id: ci-matrix
+        name: ci-matrix
+        entry: tests/scripts/md-table/test.sh
+        language: script
+        pass_filenames: false

.yamllint

@@ -3,6 +3,8 @@ extends: default
 
 ignore: |
   .git/
+  # Generated file
+  tests/files/custom_cni/cilium.yaml
 
 rules:
   braces:

CNAME

@@ -1 +1 @@
-kubespray.io
+kubespray.io

CONTRIBUTING.md

@@ -16,7 +16,12 @@ pip install -r tests/requirements.txt
 
 #### Linting
 
-Kubespray uses `yamllint` and `ansible-lint`. To run them locally use `yamllint .` and `ansible-lint`. It is a good idea to add call these tools as part of your pre-commit hook and avoid a lot of back end forth on fixing linting issues (<https://support.gitkraken.com/working-with-repositories/githooksexample/>).
+Kubespray uses [pre-commit](https://pre-commit.com) hook configuration to run several linters, please install this tool and use it to run validation tests before submitting a PR.
+
+```ShellSession
+pre-commit install
+pre-commit run -a  # To run pre-commit hook on all files in the repository, even if they were not modified
+```
 
 #### Molecule
 
@@ -33,7 +38,9 @@ Vagrant with VirtualBox or libvirt driver helps you to quickly spin test cluster
 1. Submit an issue describing your proposed change to the repo in question.
 2. The [repo owners](OWNERS) will respond to your issue promptly.
 3. Fork the desired repo, develop and test your code changes.
-4. Sign the CNCF CLA (<https://git.k8s.io/community/CLA.md#the-contributor-license-agreement>)
-5. Submit a pull request.
-6. Work with the reviewers on their suggestions.
-7. Ensure to rebase to the HEAD of your target branch and squash un-necessary commits (<https://blog.carbonfive.com/always-squash-and-rebase-your-git-commits/>) before final merger of your contribution.
+4. Install [pre-commit](https://pre-commit.com) and install it in your development repo.
+5. Addess any pre-commit validation failures.
+6. Sign the CNCF CLA (<https://git.k8s.io/community/CLA.md#the-contributor-license-agreement>)
+7. Submit a pull request.
+8. Work with the reviewers on their suggestions.
+9. Ensure to rebase to the HEAD of your target branch and squash un-necessary commits (<https://blog.carbonfive.com/always-squash-and-rebase-your-git-commits/>) before final merger of your contribution.

Dockerfile

@@ -1,33 +1,44 @@
-# Use imutable image tags rather than mutable tags (like ubuntu:18.04)
-FROM ubuntu:bionic-20200807
-
-RUN apt update -y \
-    && apt install -y \
-    libssl-dev python3-dev sshpass apt-transport-https jq moreutils \
-    ca-certificates curl gnupg2 software-properties-common python3-pip unzip rsync git \
-    && rm -rf /var/lib/apt/lists/*
-RUN curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add - \
-    && add-apt-repository \
-    "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
-    $(lsb_release -cs) \
-    stable" \
-    && apt update -y && apt-get install --no-install-recommends -y docker-ce \
-    && rm -rf /var/lib/apt/lists/*
-
+# Use imutable image tags rather than mutable tags (like ubuntu:22.04)
+FROM ubuntu:jammy-20230308
 # Some tools like yamllint need this
 # Pip needs this as well at the moment to install ansible
-# (and potentially other packages)
+# (and potentially other packages) 
 # See: https://github.com/pypa/pip/issues/10219
-ENV LANG=C.UTF-8
-
+ENV LANG=C.UTF-8 \
+    DEBIAN_FRONTEND=noninteractive \
+    PYTHONDONTWRITEBYTECODE=1
 WORKDIR /kubespray
-COPY . .
-RUN /usr/bin/python3 -m pip install --no-cache-dir pip -U \
-    && /usr/bin/python3 -m pip install --no-cache-dir -r tests/requirements.txt \
-    && python3 -m pip install --no-cache-dir -r requirements.txt \
-    && update-alternatives --install /usr/bin/python python /usr/bin/python3 1
+COPY *.yml ./
+COPY *.cfg ./
+COPY roles ./roles
+COPY contrib ./contrib
+COPY inventory ./inventory
+COPY library ./library
+COPY extra_playbooks ./extra_playbooks
+COPY playbooks ./playbooks
+COPY plugins ./plugins
 
-RUN KUBE_VERSION=$(sed -n 's/^kube_version: //p' roles/kubespray-defaults/defaults/main.yaml) \
-    && curl -LO https://storage.googleapis.com/kubernetes-release/release/$KUBE_VERSION/bin/linux/amd64/kubectl \
-    && chmod a+x kubectl \
-    && mv kubectl /usr/local/bin/kubectl
+RUN apt update -q \
+    && apt install -yq --no-install-recommends \
+       curl \
+       python3 \
+       python3-pip \
+       sshpass \
+       vim \
+       rsync \
+       openssh-client \
+    && pip install --no-compile --no-cache-dir \
+       ansible==5.7.1 \
+       ansible-core==2.12.5 \
+       cryptography==3.4.8 \
+       jinja2==3.1.2 \
+       netaddr==0.8.0 \
+       jmespath==1.0.1 \
+       MarkupSafe==2.1.2 \
+       ruamel.yaml==0.17.21 \
+    && KUBE_VERSION=$(sed -n 's/^kube_version: //p' roles/kubespray-defaults/defaults/main.yaml) \
+    && curl -L https://dl.k8s.io/release/$KUBE_VERSION/bin/linux/$(dpkg --print-architecture)/kubectl -o /usr/local/bin/kubectl \
+    && echo $(curl -L https://dl.k8s.io/release/$KUBE_VERSION/bin/linux/$(dpkg --print-architecture)/kubectl.sha256) /usr/local/bin/kubectl | sha256sum --check \
+    && chmod a+x /usr/local/bin/kubectl \
+    && rm -rf /var/lib/apt/lists/* /var/log/* \
+    && find /usr -type d -name '*__pycache__' -prune -exec rm -rf {} \;

LICENSE

@@ -187,7 +187,7 @@
       identification within third-party archives.
 
    Copyright 2016 Kubespray
-   
+
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

OWNERS

@@ -5,4 +5,4 @@ approvers:
 reviewers:
   - kubespray-reviewers
 emeritus_approvers:
-  - kubespray-emeritus_approvers
+  - kubespray-emeritus_approvers

OWNERS_ALIASES

@@ -4,10 +4,13 @@ aliases:
     - chadswen
     - mirwan
     - miouge1
-    - woopstar
     - luckysb
     - floryut
     - oomichi
+    - cristicalin
+    - liupeng0518
+    - yankay
+    - mzaian
   kubespray-reviewers:
     - holmsten
     - bozzo
@@ -15,7 +18,13 @@ aliases:
     - oomichi
     - jayonlau
     - cristicalin
+    - liupeng0518
+    - yankay
+    - cyclinder
+    - mzaian
+    - mrfreezeex
   kubespray-emeritus_approvers:
     - riverzhang
     - atoms
     - ant31
+    - woopstar

README.md

@@ -13,16 +13,16 @@ You can get your invite [here](http://slack.k8s.io/)
 
 ## Quick Start
 
-To deploy the cluster you can use :
+Below are several ways to use Kubespray to deploy a Kubernetes cluster.
 
 ### Ansible
 
 #### Usage
 
-```ShellSession
-# Install dependencies from ``requirements.txt``
-sudo pip3 install -r requirements.txt
+Install Ansible according to [Ansible installation guide](/docs/ansible.md#installing-ansible)
+then run the following steps:
 
+```ShellSession
 # Copy ``inventory/sample`` as ``inventory/mycluster``
 cp -rfp inventory/sample inventory/mycluster
 
@@ -34,6 +34,13 @@ CONFIG_FILE=inventory/mycluster/hosts.yaml python3 contrib/inventory_builder/inv
 cat inventory/mycluster/group_vars/all/all.yml
 cat inventory/mycluster/group_vars/k8s_cluster/k8s-cluster.yml
 
+# Clean up old Kubernete cluster with Ansible Playbook - run the playbook as root
+# The option `--become` is required, as for example cleaning up SSL keys in /etc/,
+# uninstalling old packages and interacting with various systemd daemons.
+# Without --become the playbook will fail to run!
+# And be mind it will remove the current kubernetes cluster (if it's running)!
+ansible-playbook -i inventory/mycluster/hosts.yaml  --become --become-user=root reset.yml
+
 # Deploy Kubespray with Ansible Playbook - run the playbook as root
 # The option `--become` is required, as for example writing SSL keys in /etc/,
 # installing packages and interacting with various systemd daemons.
@@ -41,44 +48,61 @@ cat inventory/mycluster/group_vars/k8s_cluster/k8s-cluster.yml
 ansible-playbook -i inventory/mycluster/hosts.yaml  --become --become-user=root cluster.yml
 ```
 
-Note: When Ansible is already installed via system packages on the control machine, other python packages installed via `sudo pip install -r requirements.txt` will go to a different directory tree (e.g. `/usr/local/lib/python2.7/dist-packages` on Ubuntu) from Ansible's (e.g. `/usr/lib/python2.7/dist-packages/ansible` still on Ubuntu).
-As a consequence, `ansible-playbook` command will fail with:
+Note: When Ansible is already installed via system packages on the control node,
+Python packages installed via `sudo pip install -r requirements.txt` will go to
+a different directory tree (e.g. `/usr/local/lib/python2.7/dist-packages` on
+Ubuntu) from Ansible's (e.g. `/usr/lib/python2.7/dist-packages/ansible` still on
+Ubuntu). As a consequence, the `ansible-playbook` command will fail with:
 
 ```raw
 ERROR! no action detected in task. This often indicates a misspelled module name, or incorrect module path.
 ```
 
-probably pointing on a task depending on a module present in requirements.txt.
+This likely indicates that a task depends on a module present in ``requirements.txt``.
 
-One way of solving this would be to uninstall the Ansible package and then, to install it via pip but it is not always possible.
-A workaround consists of setting `ANSIBLE_LIBRARY` and `ANSIBLE_MODULE_UTILS` environment variables respectively to the `ansible/modules` and `ansible/module_utils` subdirectories of pip packages installation location, which can be found in the Location field of the output of `pip show [package]` before executing `ansible-playbook`.
+One way of addressing this is to uninstall the system Ansible package then
+reinstall Ansible via ``pip``, but this not always possible and one must
+take care regarding package versions.
+A workaround consists of setting the `ANSIBLE_LIBRARY`
+and `ANSIBLE_MODULE_UTILS` environment variables respectively to
+the `ansible/modules` and `ansible/module_utils` subdirectories of the ``pip``
+installation location, which is the ``Location`` shown by running
+`pip show [package]` before executing `ansible-playbook`.
 
-A simple way to ensure you get all the correct version of Ansible is to use the [pre-built docker image from Quay](https://quay.io/repository/kubespray/kubespray?tab=tags).
-You will then need to use [bind mounts](https://docs.docker.com/storage/bind-mounts/) to get the inventory and ssh key into the container, like this:
+A simple way to ensure you get all the correct version of Ansible is to use
+the [pre-built docker image from Quay](https://quay.io/repository/kubespray/kubespray?tab=tags).
+You will then need to use [bind mounts](https://docs.docker.com/storage/bind-mounts/)
+to access the inventory and SSH key in the container, like this:
 
 ```ShellSession
-docker pull quay.io/kubespray/kubespray:v2.17.1
+git checkout v2.22.0
+docker pull quay.io/kubespray/kubespray:v2.22.0
 docker run --rm -it --mount type=bind,source="$(pwd)"/inventory/sample,dst=/inventory \
   --mount type=bind,source="${HOME}"/.ssh/id_rsa,dst=/root/.ssh/id_rsa \
-  quay.io/kubespray/kubespray:v2.17.1 bash
+  quay.io/kubespray/kubespray:v2.22.0 bash
 # Inside the container you may now run the kubespray playbooks:
 ansible-playbook -i /inventory/inventory.ini --private-key /root/.ssh/id_rsa cluster.yml
 ```
 
+#### Collection
+
+See [here](docs/ansible_collection.md) if you wish to use this repository as an Ansible collection
+
 ### Vagrant
 
-For Vagrant we need to install python dependencies for provisioning tasks.
-Check if Python and pip are installed:
+For Vagrant we need to install Python dependencies for provisioning tasks.
+Check that ``Python`` and ``pip`` are installed:
 
 ```ShellSession
 python -V && pip -V
 ```
 
 If this returns the version of the software, you're good to go. If not, download and install Python from here <https://www.python.org/downloads/source/>
-Install the necessary requirements
+
+Install Ansible according to [Ansible installation guide](/docs/ansible.md#installing-ansible)
+then run the following step:
 
 ```ShellSession
-sudo pip install -r requirements.txt
 vagrant up
 ```
 
@@ -110,69 +134,87 @@ vagrant up
 - [Adding/replacing a node](docs/nodes.md)
 - [Upgrades basics](docs/upgrades.md)
 - [Air-Gap installation](docs/offline-environment.md)
+- [NTP](docs/ntp.md)
+- [Hardening](docs/hardening.md)
+- [Mirror](docs/mirror.md)
 - [Roadmap](docs/roadmap.md)
 
 ## Supported Linux Distributions
 
 - **Flatcar Container Linux by Kinvolk**
-- **Debian** Bullseye, Buster, Jessie, Stretch
-- **Ubuntu** 16.04, 18.04, 20.04
-- **CentOS/RHEL** 7, [8](docs/centos8.md)
-- **Fedora** 34, 35
+- **Debian** Bullseye, Buster
+- **Ubuntu** 16.04, 18.04, 20.04, 22.04
+- **CentOS/RHEL** 7, [8, 9](docs/centos.md#centos-8)
+- **Fedora** 35, 36
 - **Fedora CoreOS** (see [fcos Note](docs/fcos.md))
 - **openSUSE** Leap 15.x/Tumbleweed
-- **Oracle Linux** 7, [8](docs/centos8.md)
-- **Alma Linux** [8](docs/centos8.md)
-- **Rocky Linux** [8](docs/centos8.md)
+- **Oracle Linux** 7, [8, 9](docs/centos.md#centos-8)
+- **Alma Linux** [8, 9](docs/centos.md#centos-8)
+- **Rocky Linux** [8, 9](docs/centos.md#centos-8)
+- **Kylin Linux Advanced Server V10** (experimental: see [kylin linux notes](docs/kylinlinux.md))
 - **Amazon Linux 2** (experimental: see [amazon linux notes](docs/amazonlinux.md))
+- **UOS Linux** (experimental: see [uos linux notes](docs/uoslinux.md))
+- **openEuler** (experimental: see [openEuler notes](docs/openeuler.md))
 
 Note: Upstart/SysV init based OS types are not supported.
 
 ## Supported Components
 
 - Core
-  - [kubernetes](https://github.com/kubernetes/kubernetes) v1.22.5
-  - [etcd](https://github.com/coreos/etcd) v3.5.0
+  - [kubernetes](https://github.com/kubernetes/kubernetes) v1.26.5
+  - [etcd](https://github.com/etcd-io/etcd) v3.5.6
   - [docker](https://www.docker.com/) v20.10 (see note)
-  - [containerd](https://containerd.io/) v1.5.8
-  - [cri-o](http://cri-o.io/) v1.22 (experimental: see [CRI-O Note](docs/cri-o.md). Only on fedora, ubuntu and centos based OS)
+  - [containerd](https://containerd.io/) v1.7.1
+  - [cri-o](http://cri-o.io/) v1.24 (experimental: see [CRI-O Note](docs/cri-o.md). Only on fedora, ubuntu and centos based OS)
 - Network Plugin
-  - [cni-plugins](https://github.com/containernetworking/plugins) v1.0.1
-  - [calico](https://github.com/projectcalico/calico) v3.20.3
-  - [canal](https://github.com/projectcalico/canal) (given calico/flannel versions)
-  - [cilium](https://github.com/cilium/cilium) v1.9.11
-  - [flanneld](https://github.com/flannel-io/flannel) v0.15.1
-  - [kube-ovn](https://github.com/alauda/kube-ovn) v1.8.1
-  - [kube-router](https://github.com/cloudnativelabs/kube-router) v1.3.2
-  - [multus](https://github.com/intel/multus-cni) v3.8
+  - [cni-plugins](https://github.com/containernetworking/plugins) v1.2.0
+  - [calico](https://github.com/projectcalico/calico) v3.25.1
+  - [cilium](https://github.com/cilium/cilium) v1.13.0
+  - [flannel](https://github.com/flannel-io/flannel) v0.21.4
+  - [kube-ovn](https://github.com/alauda/kube-ovn) v1.10.7
+  - [kube-router](https://github.com/cloudnativelabs/kube-router) v1.5.1
+  - [multus](https://github.com/k8snetworkplumbingwg/multus-cni) v3.8
   - [weave](https://github.com/weaveworks/weave) v2.8.1
+  - [kube-vip](https://github.com/kube-vip/kube-vip) v0.5.12
 - Application
+  - [cert-manager](https://github.com/jetstack/cert-manager) v1.11.1
+  - [coredns](https://github.com/coredns/coredns) v1.9.3
+  - [ingress-nginx](https://github.com/kubernetes/ingress-nginx) v1.7.1
+  - [krew](https://github.com/kubernetes-sigs/krew) v0.4.3
+  - [argocd](https://argoproj.github.io/) v2.7.2
+  - [helm](https://helm.sh/) v3.12.0
+  - [metallb](https://metallb.universe.tf/)  v0.13.9
+  - [registry](https://github.com/distribution/distribution) v2.8.1
+- Storage Plugin
   - [cephfs-provisioner](https://github.com/kubernetes-incubator/external-storage) v2.1.0-k8s1.11
   - [rbd-provisioner](https://github.com/kubernetes-incubator/external-storage) v2.1.1-k8s1.11
-  - [cert-manager](https://github.com/jetstack/cert-manager) v1.5.4
-  - [coredns](https://github.com/coredns/coredns) v1.8.0
-  - [ingress-nginx](https://github.com/kubernetes/ingress-nginx) v1.0.4
+  - [aws-ebs-csi-plugin](https://github.com/kubernetes-sigs/aws-ebs-csi-driver) v0.5.0
+  - [azure-csi-plugin](https://github.com/kubernetes-sigs/azuredisk-csi-driver) v1.10.0
+  - [cinder-csi-plugin](https://github.com/kubernetes/cloud-provider-openstack/blob/master/docs/cinder-csi-plugin/using-cinder-csi-plugin.md) v1.22.0
+  - [gcp-pd-csi-plugin](https://github.com/kubernetes-sigs/gcp-compute-persistent-disk-csi-driver) v1.4.0
+  - [local-path-provisioner](https://github.com/rancher/local-path-provisioner) v0.0.23
+  - [local-volume-provisioner](https://github.com/kubernetes-sigs/sig-storage-local-static-provisioner) v2.5.0
 
 ## Container Runtime Notes
 
-- The list of available docker version is 18.09, 19.03 and 20.10. The recommended docker version is 20.10. The kubelet might break on docker's non-standard version numbering (it no longer uses semantic versioning). To ensure auto-updates don't break your cluster look into e.g. yum versionlock plugin or apt pin).
+- Supported Docker versions are 18.09, 19.03 and 20.10. The *recommended* Docker version is 20.10. `Kubelet` might break on docker's non-standard version numbering (it no longer uses semantic versioning). To ensure auto-updates don't break your cluster look into e.g. the YUM  ``versionlock`` plugin or ``apt pin``).
 - The cri-o version should be aligned with the respective kubernetes version (i.e. kube_version=1.20.x, crio_version=1.20)
 
 ## Requirements
 
-- **Minimum required version of Kubernetes is v1.20**
-- **Ansible v2.9.x, Jinja 2.11+ and python-netaddr is installed on the machine that will run Ansible commands, Ansible 2.10.x is experimentally supported for now**
+- **Minimum required version of Kubernetes is v1.24**
+- **Ansible v2.11+, Jinja 2.11+ and python-netaddr is installed on the machine that will run Ansible commands**
 - The target servers must have **access to the Internet** in order to pull docker images. Otherwise, additional configuration is required (See [Offline Environment](docs/offline-environment.md))
 - The target servers are configured to allow **IPv4 forwarding**.
 - If using IPv6 for pods and services, the target servers are configured to allow **IPv6 forwarding**.
 - The **firewalls are not managed**, you'll need to implement your own rules the way you used to.
     in order to avoid any issue during deployment you should disable your firewall.
-- If kubespray is ran from non-root user account, correct privilege escalation method
+- If kubespray is run from non-root user account, correct privilege escalation method
     should be configured in the target servers. Then the `ansible_become` flag
     or command parameters `--become or -b` should be specified.
 
 Hardware:
-These limits are safe guarded by Kubespray. Actual requirements for your workload can differ. For a sizing guide go to the [Building Large Clusters](https://kubernetes.io/docs/setup/cluster-large/#size-of-master-and-master-components) guide.
+These limits are safeguarded by Kubespray. Actual requirements for your workload can differ. For a sizing guide go to the [Building Large Clusters](https://kubernetes.io/docs/setup/cluster-large/#size-of-master-and-master-components) guide.
 
 - Master
   - Memory: 1500 MB
@@ -181,7 +223,7 @@ These limits are safe guarded by Kubespray. Actual requirements for your workloa
 
 ## Network Plugins
 
-You can choose between 10 network plugins. (default: `calico`, except Vagrant uses `flannel`)
+You can choose among ten network plugins. (default: `calico`, except Vagrant uses `flannel`)
 
 - [flannel](docs/flannel.md): gre/vxlan (layer 2) networking.
 
@@ -190,8 +232,6 @@ You can choose between 10 network plugins. (default: `calico`, except Vagrant us
     and overlay networks, with or without BGP. Calico uses the same engine to enforce network policy for hosts,
     pods, and (if using Istio and Envoy) applications at the service mesh layer.
 
-- [canal](https://github.com/projectcalico/canal): a composition of calico and flannel plugins.
-
 - [cilium](http://docs.cilium.io/en/latest/): layer 3/4 networking (as well as layer 7 to protect and secure application protocols), supports dynamic insertion of BPF bytecode into the Linux kernel to implement security services, networking and visibility logic.
 
 - [weave](docs/weave.md): Weave is a lightweight container overlay network that doesn't require an external K/V database cluster.
@@ -208,7 +248,10 @@ You can choose between 10 network plugins. (default: `calico`, except Vagrant us
 
 - [multus](docs/multus.md): Multus is a meta CNI plugin that provides multiple network interface support to pods. For each interface Multus delegates CNI calls to secondary CNI plugins such as Calico, macvlan, etc.
 
-The choice is defined with the variable `kube_network_plugin`. There is also an
+- [custom_cni](roles/network-plugin/custom_cni/) : You can specify some manifests that will be applied to the clusters to bring you own CNI and use non-supported ones by Kubespray.
+  See `tests/files/custom_cni/README.md` and `tests/files/custom_cni/values.yaml`for an example with a CNI provided by a Helm Chart.
+
+The network plugin to use is defined by the variable `kube_network_plugin`. There is also an
 option to leverage built-in cloud provider networking instead.
 See also [Network checker](docs/netcheck.md).
 
@@ -229,10 +272,11 @@ See also [Network checker](docs/netcheck.md).
 
 - [Digital Rebar Provision](https://github.com/digitalrebar/provision/blob/v4/doc/integrations/ansible.rst)
 - [Terraform Contrib](https://github.com/kubernetes-sigs/kubespray/tree/master/contrib/terraform)
+- [Kubean](https://github.com/kubean-io/kubean)
 
 ## CI Tests
 
-[![Build graphs](https://gitlab.com/kargo-ci/kubernetes-sigs-kubespray/badges/master/pipeline.svg)](https://gitlab.com/kargo-ci/kubernetes-sigs-kubespray/pipelines)
+[![Build graphs](https://gitlab.com/kargo-ci/kubernetes-sigs-kubespray/badges/master/pipeline.svg)](https://gitlab.com/kargo-ci/kubernetes-sigs-kubespray/-/pipelines)
 
 CI/end-to-end tests sponsored by: [CNCF](https://cncf.io), [Equinix Metal](https://metal.equinix.com/), [OVHcloud](https://www.ovhcloud.com/), [ELASTX](https://elastx.se/).
 

RELEASE.md

@@ -2,17 +2,18 @@
 
 The Kubespray Project is released on an as-needed basis. The process is as follows:
 
-1. An issue is proposing a new release with a changelog since the last release
+1. An issue is proposing a new release with a changelog since the last release. Please see [a good sample issue](https://github.com/kubernetes-sigs/kubespray/issues/8325)
 2. At least one of the [approvers](OWNERS_ALIASES) must approve this release
 3. The `kube_version_min_required` variable is set to `n-1`
-4. Remove hashes for [EOL versions](https://github.com/kubernetes/sig-release/blob/master/releases/patch-releases.md) of kubernetes from `*_checksums` variables.
-5. An approver creates [new release in GitHub](https://github.com/kubernetes-sigs/kubespray/releases/new) using a version and tag name like `vX.Y.Z` and attaching the release notes
-6. An approver creates a release branch in the form `release-X.Y`
-7. The corresponding version of [quay.io/kubespray/kubespray:vX.Y.Z](https://quay.io/repository/kubespray/kubespray) and [quay.io/kubespray/vagrant:vX.Y.Z](https://quay.io/repository/kubespray/vagrant) docker images are built and tagged
-8. The `KUBESPRAY_VERSION` variable is updated in `.gitlab-ci.yml`
-9. The release issue is closed
-10. An announcement email is sent to `kubernetes-dev@googlegroups.com` with the subject `[ANNOUNCE] Kubespray $VERSION is released`
-11. The topic of the #kubespray channel is updated with `vX.Y.Z is released! | ...`
+4. Remove hashes for [EOL versions](https://github.com/kubernetes/website/blob/main/content/en/releases/patch-releases.md) of kubernetes from `*_checksums` variables.
+5. Create the release note with [Kubernetes Release Notes Generator](https://github.com/kubernetes/release/blob/master/cmd/release-notes/README.md). See the following `Release note creation` section for the details.
+6. An approver creates [new release in GitHub](https://github.com/kubernetes-sigs/kubespray/releases/new) using a version and tag name like `vX.Y.Z` and attaching the release notes
+7. An approver creates a release branch in the form `release-X.Y`
+8. The corresponding version of [quay.io/kubespray/kubespray:vX.Y.Z](https://quay.io/repository/kubespray/kubespray) and [quay.io/kubespray/vagrant:vX.Y.Z](https://quay.io/repository/kubespray/vagrant) container images are built and tagged. See the following `Container image creation` section for the details.
+9. The `KUBESPRAY_VERSION` variable is updated in `.gitlab-ci.yml`
+10. The release issue is closed
+11. An announcement email is sent to `dev@kubernetes.io` with the subject `[ANNOUNCE] Kubespray $VERSION is released`
+12. The topic of the #kubespray channel is updated with `vX.Y.Z is released! | ...`
 
 ## Major/minor releases and milestones
 
@@ -46,3 +47,37 @@ The Kubespray Project is released on an as-needed basis. The process is as follo
   then Kubespray v2.1.0 may be bound to only minor changes to `kube_version`, like v1.5.1
   and *any* changes to other components, like etcd v4, or calico 1.2.3.
   And Kubespray v3.x.x shall be bound to `kube_version: 2.x.x` respectively.
+
+## Release note creation
+
+You can create a release note with:
+
+```shell
+export GITHUB_TOKEN=<your-github-token>
+export ORG=kubernetes-sigs
+export REPO=kubespray
+release-notes --start-sha <The start commit-id> --end-sha <The end commit-id> --dependencies=false --output=/tmp/kubespray-release-note --required-author=""
+```
+
+If the release note file(/tmp/kubespray-release-note) contains "### Uncategorized" pull requests, those pull requests don't have a valid kind label(`kind/feature`, etc.).
+It is necessary to put a valid label on each pull request and run the above release-notes command again to get a better release note
+
+## Container image creation
+
+The container image `quay.io/kubespray/kubespray:vX.Y.Z` can be created from Dockerfile of the kubespray root directory:
+
+```shell
+cd kubespray/
+nerdctl build -t quay.io/kubespray/kubespray:vX.Y.Z .
+nerdctl push quay.io/kubespray/kubespray:vX.Y.Z
+```
+
+The container image `quay.io/kubespray/vagrant:vX.Y.Z` can be created from build.sh of test-infra/vagrant-docker/:
+
+```shell
+cd kubespray/test-infra/vagrant-docker/
+./build vX.Y.Z
+```
+
+Please note that the above operation requires the permission to push container images into quay.io/kubespray/.
+If you don't have the permission, please ask it on the #kubespray-dev channel.

SECURITY_CONTACTS

@@ -9,5 +9,7 @@
 #
 # DO NOT REPORT SECURITY VULNERABILITIES DIRECTLY TO THESE NAMES, FOLLOW THE
 # INSTRUCTIONS AT https://kubernetes.io/security/
-atoms
 mattymo
+floryut
+oomichi
+cristicalin

Vagrantfile

@@ -10,6 +10,7 @@ Vagrant.require_version ">= 2.0.0"
 CONFIG = File.join(File.dirname(__FILE__), ENV['KUBESPRAY_VAGRANT_CONFIG'] || 'vagrant/config.rb')
 
 FLATCAR_URL_TEMPLATE = "https://%s.release.flatcar-linux.net/amd64-usr/current/flatcar_production_vagrant.json"
+FEDORA35_MIRROR = "https://download.fedoraproject.org/pub/fedora/linux/releases/35/Cloud/x86_64/images/Fedora-Cloud-Base-Vagrant-35-1.2.x86_64.vagrant-libvirt.box"
 
 # Uniq disk UUID for libvirt
 DISK_UUID = Time.now.utc.to_i
@@ -26,9 +27,12 @@ SUPPORTED_OS = {
   "centos-bento"        => {box: "bento/centos-7.6",           user: "vagrant"},
   "centos8"             => {box: "centos/8",                   user: "vagrant"},
   "centos8-bento"       => {box: "bento/centos-8",             user: "vagrant"},
-  "fedora34"            => {box: "fedora/34-cloud-base",       user: "vagrant"},
-  "fedora35"            => {box: "fedora/35-cloud-base",       user: "vagrant"},
-  "opensuse"            => {box: "bento/opensuse-leap-15.2",   user: "vagrant"},
+  "almalinux8"          => {box: "almalinux/8",                user: "vagrant"},
+  "almalinux8-bento"    => {box: "bento/almalinux-8",          user: "vagrant"},
+  "rockylinux8"         => {box: "generic/rocky8",             user: "vagrant"},
+  "fedora35"            => {box: "fedora/35-cloud-base",       user: "vagrant", box_url: FEDORA35_MIRROR},
+  "fedora36"            => {box: "fedora/36-cloud-base",       user: "vagrant"},
+  "opensuse"            => {box: "opensuse/Leap-15.4.x86_64",  user: "vagrant"},
   "opensuse-tumbleweed" => {box: "opensuse/Tumbleweed.x86_64", user: "vagrant"},
   "oraclelinux"         => {box: "generic/oracle7",            user: "vagrant"},
   "oraclelinux8"        => {box: "generic/oracle8",            user: "vagrant"},
@@ -52,14 +56,14 @@ $subnet ||= "172.18.8"
 $subnet_ipv6 ||= "fd3c:b398:0698:0756"
 $os ||= "ubuntu1804"
 $network_plugin ||= "flannel"
-# Setting multi_networking to true will install Multus: https://github.com/intel/multus-cni
-$multi_networking ||= false
+# Setting multi_networking to true will install Multus: https://github.com/k8snetworkplumbingwg/multus-cni
+$multi_networking ||= "False"
 $download_run_once ||= "True"
 $download_force_cache ||= "False"
 # The first three nodes are etcd servers
-$etcd_instances ||= $num_instances
+$etcd_instances ||= [$num_instances, 3].min
 # The first two nodes are kube masters
-$kube_master_instances ||= $num_instances == 1 ? $num_instances : ($num_instances - 1)
+$kube_master_instances ||= [$num_instances, 2].min
 # All nodes are kube nodes
 $kube_node_instances ||= $num_instances
 # The following only works when using the libvirt provider
@@ -68,14 +72,24 @@ $kube_node_instances_with_disks_size ||= "20G"
 $kube_node_instances_with_disks_number ||= 2
 $override_disk_size ||= false
 $disk_size ||= "20GB"
-$local_path_provisioner_enabled ||= false
+$local_path_provisioner_enabled ||= "False"
 $local_path_provisioner_claim_root ||= "/opt/local-path-provisioner/"
 $libvirt_nested ||= false
+# boolean or string (e.g. "-vvv")
+$ansible_verbosity ||= false
+$ansible_tags ||= ENV['VAGRANT_ANSIBLE_TAGS'] || ""
 
 $playbook ||= "cluster.yml"
 
 host_vars = {}
 
+# throw error if os is not supported
+if ! SUPPORTED_OS.key?($os)
+  puts "Unsupported OS: #{$os}"
+  puts "Supported OS are: #{SUPPORTED_OS.keys.join(', ')}"
+  exit 1
+end
+
 $box = SUPPORTED_OS[$os][:box]
 # if $inventory is not set, try to use example
 $inventory = "inventory/sample" if ! $inventory
@@ -167,7 +181,7 @@ Vagrant.configure("2") do |config|
           # always make /dev/sd{a/b/c} so that CI can ensure that
           # virtualbox and libvirt will have the same devices to use for OSDs
           (1..$kube_node_instances_with_disks_number).each do |d|
-            lv.storage :file, :device => "hd#{driverletters[d]}", :path => "disk-#{i}-#{d}-#{DISK_UUID}.disk", :size => $kube_node_instances_with_disks_size, :bus => "ide"
+            lv.storage :file, :device => "hd#{driverletters[d]}", :path => "disk-#{i}-#{d}-#{DISK_UUID}.disk", :size => $kube_node_instances_with_disks_size, :bus => "scsi"
           end
         end
       end
@@ -238,9 +252,11 @@ Vagrant.configure("2") do |config|
       }
 
       # Only execute the Ansible provisioner once, when all the machines are up and ready.
+      # And limit the action to gathering facts, the full playbook is going to be ran by testcases_run.sh
       if i == $num_instances
         node.vm.provision "ansible" do |ansible|
           ansible.playbook = $playbook
+          ansible.verbose = $ansible_verbosity
           $ansible_inventory_path = File.join( $inventory, "hosts.ini")
           if File.exist?($ansible_inventory_path)
             ansible.inventory_path = $ansible_inventory_path
@@ -250,7 +266,9 @@ Vagrant.configure("2") do |config|
           ansible.host_key_checking = false
           ansible.raw_arguments = ["--forks=#{$num_instances}", "--flush-cache", "-e ansible_become_pass=vagrant"]
           ansible.host_vars = host_vars
-          #ansible.tags = ['download']
+          if $ansible_tags != ""
+            ansible.tags = [$ansible_tags]
+          end
           ansible.groups = {
             "etcd" => ["#{$instance_name_prefix}-[1:#{$etcd_instances}]"],
             "kube_control_plane" => ["#{$instance_name_prefix}-[1:#{$kube_master_instances}]"],

ansible.cfg

@@ -1,6 +1,6 @@
 [ssh_connection]
 pipelining=True
-ssh_args = -o ControlMaster=auto -o ControlPersist=30m -o ConnectionAttempts=100 -o UserKnownHostsFile=/dev/null
+ansible_ssh_args = -o ControlMaster=auto -o ControlPersist=30m -o ConnectionAttempts=100 -o UserKnownHostsFile=/dev/null
 #control_path = ~/.ssh/ansible-%%r@%%h:%%p
 [defaults]
 # https://github.com/ansible/ansible/issues/56930 (to ignore group names with - and .)
@@ -10,11 +10,11 @@ host_key_checking=False
 gathering = smart
 fact_caching = jsonfile
 fact_caching_connection = /tmp
-fact_caching_timeout = 7200
+fact_caching_timeout = 86400
 stdout_callback = default
 display_skipped_hosts = no
 library = ./library
-callback_whitelist = profile_tasks
+callbacks_enabled = profile_tasks,ara_default
 roles_path = roles:$VIRTUAL_ENV/usr/local/share/kubespray/roles:$VIRTUAL_ENV/usr/local/share/ansible/roles:/usr/share/kubespray/roles
 deprecation_warnings=False
 inventory_ignore_extensions = ~, .orig, .bak, .ini, .cfg, .retry, .pyc, .pyo, .creds, .gpg

cluster.yml

@@ -1,127 +1,3 @@
 ---
-- name: Check ansible version
-  import_playbook: ansible_version.yml
-
-- name: Ensure compatibility with old groups
-  import_playbook: legacy_groups.yml
-
-- hosts: bastion[0]
-  gather_facts: False
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: bastion-ssh-config, tags: ["localhost", "bastion"] }
-
-- hosts: k8s_cluster:etcd
-  strategy: linear
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  gather_facts: false
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: bootstrap-os, tags: bootstrap-os}
-
-- name: Gather facts
-  tags: always
-  import_playbook: facts.yml
-
-- hosts: k8s_cluster:etcd
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: kubernetes/preinstall, tags: preinstall }
-    - { role: "container-engine", tags: "container-engine", when: deploy_container_engine }
-    - { role: download, tags: download, when: "not skip_downloads" }
-
-- hosts: etcd
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - role: etcd
-      tags: etcd
-      vars:
-        etcd_cluster_setup: true
-        etcd_events_cluster_setup: "{{ etcd_events_cluster_enabled }}"
-      when: not etcd_kubeadm_enabled| default(false)
-
-- hosts: k8s_cluster
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - role: etcd
-      tags: etcd
-      vars:
-        etcd_cluster_setup: false
-        etcd_events_cluster_setup: false
-      when: not etcd_kubeadm_enabled| default(false)
-
-- hosts: k8s_cluster
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: kubernetes/node, tags: node }
-
-- hosts: kube_control_plane
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: kubernetes/control-plane, tags: master }
-    - { role: kubernetes/client, tags: client }
-    - { role: kubernetes-apps/cluster_roles, tags: cluster-roles }
-
-- hosts: k8s_cluster
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: kubernetes/kubeadm, tags: kubeadm}
-    - { role: kubernetes/node-label, tags: node-label }
-    - { role: network_plugin, tags: network }
-
-- hosts: calico_rr
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: network_plugin/calico/rr, tags: ['network', 'calico_rr'] }
-
-- hosts: kube_control_plane[0]
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: win_nodes/kubernetes_patch, tags: ["master", "win_nodes"] }
-
-- hosts: kube_control_plane
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: kubernetes-apps/external_cloud_controller, tags: external-cloud-controller }
-    - { role: kubernetes-apps/network_plugin, tags: network }
-    - { role: kubernetes-apps/policy_controller, tags: policy-controller }
-    - { role: kubernetes-apps/ingress_controller, tags: ingress-controller }
-    - { role: kubernetes-apps/external_provisioner, tags: external-provisioner }
-    - { role: kubernetes-apps, tags: apps }
-
-- hosts: k8s_cluster
-  gather_facts: False
-  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
-  environment: "{{ proxy_disable_env }}"
-  roles:
-    - { role: kubespray-defaults }
-    - { role: kubernetes/preinstall, when: "dns_mode != 'none' and resolvconf_mode == 'host_resolvconf'", tags: resolvconf, dns_late: true }
+- name: Install Kubernetes
+  ansible.builtin.import_playbook: playbooks/cluster.yml

contrib/aws_inventory/requirements.txt

@@ -1 +1 @@
-boto3  # Apache-2.0
+boto3  # Apache-2.0

contrib/azurerm/.gitignore

@@ -1,2 +1,2 @@
 .generated
-/inventory
+/inventory

contrib/azurerm/README.md

@@ -47,6 +47,10 @@ If you need to delete all resources from a resource group, simply call:
 
 **WARNING** this really deletes everything from your resource group, including everything that was later created by you!
 
+## Installing Ansible and the dependencies
+
+Install Ansible according to [Ansible installation guide](/docs/ansible.md#installing-ansible)
+
 ## Generating an inventory for kubespray
 
 After you have applied the templates, you can generate an inventory with this call:
@@ -59,6 +63,5 @@ It will create the file ./inventory which can then be used with kubespray, e.g.:
 
 ```shell
 cd kubespray-root-dir
-sudo pip3 install -r requirements.txt
 ansible-playbook -i contrib/azurerm/inventory -u devops --become -e "@inventory/sample/group_vars/all/all.yml" cluster.yml
 ```

contrib/azurerm/roles/generate-inventory_2/templates/inventory.j2

@@ -31,4 +31,3 @@
 [k8s_cluster:children]
 kube_node
 kube_control_plane
-

contrib/azurerm/roles/generate-templates/templates/availability-sets.json

@@ -27,4 +27,4 @@
       }
     }
   ]
-}
+}

contrib/azurerm/roles/generate-templates/templates/bastion.json

@@ -103,4 +103,4 @@
     }
     {% endif %}
   ]
-}
+}

contrib/azurerm/roles/generate-templates/templates/clear-rg.json

@@ -5,4 +5,4 @@
   "variables": {},
   "resources": [],
   "outputs": {}
-}
+}

contrib/azurerm/roles/generate-templates/templates/storage.json

@@ -16,4 +16,4 @@
       }
     }
   ]
-}
+}

contrib/dind/roles/dind-cluster/tasks/main.yaml

@@ -43,7 +43,7 @@
   package:
     name: "{{ item }}"
     state: present
-  with_items: "{{ distro_extra_packages }} + [ 'rsyslog', 'openssh-server' ]"
+  with_items: "{{ distro_extra_packages + [ 'rsyslog', 'openssh-server' ] }}"
 
 - name: Start needed services
   service:

contrib/dind/run-test-distros.sh

@@ -17,7 +17,7 @@ pass_or_fail() {
 test_distro() {
     local distro=${1:?};shift
     local extra="${*:-}"
-    local prefix="$distro[${extra}]}"
+    local prefix="${distro[${extra}]}"
     ansible-playbook -i hosts dind-cluster.yaml -e node_distro=$distro
     pass_or_fail "$prefix: dind-nodes" || return 1
     (cd ../..
@@ -71,15 +71,15 @@ for spec in ${SPECS}; do
     echo "Loading file=${spec} ..."
     . ${spec} || continue
     : ${DISTROS:?} || continue
-    echo "DISTROS=${DISTROS[@]}"
+    echo "DISTROS:" "${DISTROS[@]}"
     echo "EXTRAS->"
     printf "  %s\n" "${EXTRAS[@]}"
     let n=1
-    for distro in ${DISTROS[@]}; do
+    for distro in "${DISTROS[@]}"; do
         for extra in "${EXTRAS[@]:-NULL}"; do
             # Magic value to let this for run once:
             [[ ${extra} == NULL ]] && unset extra
-            docker rm -f ${NODES[@]}
+            docker rm -f "${NODES[@]}"
             printf -v file_out "%s/%s-%02d.out" ${OUTPUT_DIR} ${spec} $((n++))
             {
                 info "${distro}[${extra}] START: file_out=${file_out}"

contrib/inventory_builder/inventory.py

@@ -83,11 +83,15 @@ class KubesprayInventory(object):
         self.config_file = config_file
         self.yaml_config = {}
         loadPreviousConfig = False
+        printHostnames = False
         # See whether there are any commands to process
         if changed_hosts and changed_hosts[0] in AVAILABLE_COMMANDS:
             if changed_hosts[0] == "add":
                 loadPreviousConfig = True
                 changed_hosts = changed_hosts[1:]
+            elif changed_hosts[0] == "print_hostnames":
+                loadPreviousConfig = True
+                printHostnames = True
             else:
                 self.parse_command(changed_hosts[0], changed_hosts[1:])
                 sys.exit(0)
@@ -105,6 +109,10 @@ class KubesprayInventory(object):
                 print(e)
                 sys.exit(1)
 
+        if printHostnames:
+            self.print_hostnames()
+            sys.exit(0)
+
         self.ensure_required_groups(ROLES)
 
         if changed_hosts:

contrib/inventory_builder/requirements.txt

@@ -1,3 +1,3 @@
 configparser>=3.3.0
-ruamel.yaml>=0.15.88
 ipaddress
+ruamel.yaml>=0.15.88

contrib/inventory_builder/test-requirements.txt

@@ -1,3 +1,3 @@
 hacking>=0.10.2
-pytest>=2.8.0
 mock>=1.3.0
+pytest>=2.8.0

contrib/inventory_builder/tests/test_inventory.py

@@ -13,6 +13,7 @@
 # under the License.
 
 import inventory
+from io import StringIO
 import unittest
 from unittest import mock
 
@@ -26,6 +27,28 @@ if path not in sys.path:
 import inventory  # noqa
 
 
+class TestInventoryPrintHostnames(unittest.TestCase):
+
+    @mock.patch('ruamel.yaml.YAML.load')
+    def test_print_hostnames(self, load_mock):
+        mock_io = mock.mock_open(read_data='')
+        load_mock.return_value = OrderedDict({'all': {'hosts': {
+            'node1': {'ansible_host': '10.90.0.2',
+                      'ip': '10.90.0.2',
+                      'access_ip': '10.90.0.2'},
+            'node2': {'ansible_host': '10.90.0.3',
+                      'ip': '10.90.0.3',
+                      'access_ip': '10.90.0.3'}}}})
+        with mock.patch('builtins.open', mock_io):
+            with self.assertRaises(SystemExit) as cm:
+                with mock.patch('sys.stdout', new_callable=StringIO) as stdout:
+                    inventory.KubesprayInventory(
+                        changed_hosts=["print_hostnames"],
+                        config_file="file")
+            self.assertEqual("node1 node2\n", stdout.getvalue())
+            self.assertEqual(cm.exception.code, 0)
+
+
 class TestInventory(unittest.TestCase):
     @mock.patch('inventory.sys')
     def setUp(self, sys_mock):

contrib/kvm-setup/group_vars/all

@@ -1,3 +1,2 @@
 #k8s_deployment_user: kubespray
 #k8s_deployment_user_pkey_path: /tmp/ssh_rsa
-

contrib/kvm-setup/roles/kvm-setup/tasks/sysctl.yml

@@ -28,7 +28,7 @@
   sysctl:
     name: net.ipv4.ip_forward
     value: 1
-    sysctl_file: /etc/sysctl.d/ipv4-ip_forward.conf
+    sysctl_file: "{{ sysctl_file_path }}"
     state: present
     reload: yes
 
@@ -37,7 +37,7 @@
     name: "{{ item }}"
     state: present
     value: 0
-    sysctl_file: /etc/sysctl.d/bridge-nf-call.conf
+    sysctl_file: "{{ sysctl_file_path }}"
     reload: yes
   with_items:
     - net.bridge.bridge-nf-call-arptables

contrib/mitogen/mitogen.yml

@@ -5,8 +5,8 @@
 - hosts: localhost
   strategy: linear
   vars:
-    mitogen_version: 0.3.0rc1
-    mitogen_url: https://github.com/dw/mitogen/archive/v{{ mitogen_version }}.tar.gz
+    mitogen_version: 0.3.2
+    mitogen_url: https://github.com/mitogen-hq/mitogen/archive/refs/tags/v{{ mitogen_version }}.tar.gz
     ansible_connection: local
   tasks:
     - name: Create mitogen plugin dir
@@ -38,7 +38,12 @@
     - name: add strategy to ansible.cfg
       ini_file:
         path: ansible.cfg
-        section: defaults
-        option: strategy
-        value: mitogen_linear
         mode: 0644
+        section: "{{ item.section | d('defaults') }}"
+        option: "{{ item.option }}"
+        value: "{{ item.value }}"
+      with_items:
+        - option: strategy
+          value: mitogen_linear
+        - option: strategy_plugins
+          value: plugins/mitogen/ansible_mitogen/plugins/strategy

contrib/network-storage/glusterfs/inventory.example

@@ -41,4 +41,3 @@
 
 # [network-storage:children]
 # gfs-cluster
-

contrib/network-storage/glusterfs/roles/glusterfs/README.md

@@ -14,12 +14,16 @@ This role performs basic installation and setup of Gluster, but it does not conf
 
 Available variables are listed below, along with default values (see `defaults/main.yml`):
 
-    glusterfs_default_release: ""
+```yaml
+glusterfs_default_release: ""
+```
 
 You can specify a `default_release` for apt on Debian/Ubuntu by overriding this variable. This is helpful if you need a different package or version for the main GlusterFS packages (e.g. GlusterFS 3.5.x instead of 3.2.x with the `wheezy-backports` default release on Debian Wheezy).
 
-    glusterfs_ppa_use: yes
-    glusterfs_ppa_version: "3.5"
+```yaml
+glusterfs_ppa_use: yes
+glusterfs_ppa_version: "3.5"
+```
 
 For Ubuntu, specify whether to use the official Gluster PPA, and which version of the PPA to use. See Gluster's [Getting Started Guide](https://docs.gluster.org/en/latest/Quick-Start-Guide/Quickstart/) for more info.
 
@@ -29,9 +33,11 @@ None.
 
 ## Example Playbook
 
+```yaml
     - hosts: server
       roles:
         - geerlingguy.glusterfs
+```
 
 For a real-world use example, read through [Simple GlusterFS Setup with Ansible](http://www.jeffgeerling.com/blog/simple-glusterfs-setup-ansible), a blog post by this role's author, which is included in Chapter 8 of [Ansible for DevOps](https://www.ansiblefordevops.com/).
 

contrib/network-storage/glusterfs/roles/kubernetes-pv/ansible/tasks/main.yaml

@@ -3,6 +3,7 @@
   template:
     src: "{{ item.file }}"
     dest: "{{ kube_config_dir }}/{{ item.dest }}"
+    mode: 0644
   with_items:
     - { file: glusterfs-kubernetes-endpoint.json.j2, type: ep, dest: glusterfs-kubernetes-endpoint.json}
     - { file: glusterfs-kubernetes-pv.yml.j2, type: pv, dest: glusterfs-kubernetes-pv.yml}

contrib/network-storage/glusterfs/roles/kubernetes-pv/ansible/templates/glusterfs-kubernetes-endpoint.json.j2

@@ -21,4 +21,3 @@
     {% endfor %}
   ]
 }
-

contrib/offline/README.md

@@ -9,7 +9,8 @@ This script has two features:
 (2) Deploy local container registry and register the container images to the registry.
 
 Step(1) should be done online site as a preparation, then we bring the gotten images
-to the target offline environment.
+to the target offline environment. if images are from a private registry,
+you need to set `PRIVATE_REGISTRY` environment variable.
 Then we will run step(2) for registering the images to local registry.
 
 Step(1) can be operated with:
@@ -28,16 +29,37 @@ manage-offline-container-images.sh   register
 
 This script generates the list of downloaded files and the list of container images by `roles/download/defaults/main.yml` file.
 
-Run this script will generates three files, all downloaded files url in files.list, all container images in images.list, all component version in generate.sh.
+Run this script will execute `generate_list.yml` playbook in kubespray root directory and generate four files,
+all downloaded files url in files.list, all container images in images.list, jinja2 templates in *.template.
 
 ```shell
-bash generate_list.sh
+./generate_list.sh
 tree temp
 temp
 ├── files.list
-├── generate.sh
-└── images.list
-0 directories, 3 files
+├── files.list.template
+├── images.list
+└── images.list.template
+0 directories, 5 files
 ```
 
-In some cases you may want to update some component version, you can edit `generate.sh` file, then run `bash generate.sh | grep 'https' > files.list` to update file.list or run `bash generate.sh | grep -v 'https'> images.list` to update images.list.
+In some cases you may want to update some component version, you can declare version variables in ansible inventory file or group_vars,
+then run `./generate_list.sh -i [inventory_file]` to update file.list and images.list.
+
+## manage-offline-files.sh
+
+This script will download all files according to `temp/files.list` and run nginx container to provide offline file download.
+
+Step(1) generate `files.list`
+
+```shell
+./generate_list.sh
+```
+
+Step(2) download files and run nginx container
+
+```shell
+./manage-offline-files.sh
+```
+
+when nginx container is running, it can be accessed through <http://127.0.0.1:8080/>.

contrib/offline/generate_list.sh

@@ -5,53 +5,29 @@ CURRENT_DIR=$(cd $(dirname $0); pwd)
 TEMP_DIR="${CURRENT_DIR}/temp"
 REPO_ROOT_DIR="${CURRENT_DIR%/contrib/offline}"
 
-: ${IMAGE_ARCH:="amd64"}
-: ${ANSIBLE_SYSTEM:="linux"}
-: ${ANSIBLE_ARCHITECTURE:="x86_64"}
 : ${DOWNLOAD_YML:="roles/download/defaults/main.yml"}
-: ${KUBE_VERSION_YAML:="roles/kubespray-defaults/defaults/main.yaml"}
 
 mkdir -p ${TEMP_DIR}
 
-# ARCH used in convert {%- if image_arch != 'amd64' -%}-{{ image_arch }}{%- endif -%} to {{arch}}
-if [ "${IMAGE_ARCH}" != "amd64" ]; then ARCH="${IMAGE_ARCH}"; fi
-
-cat > ${TEMP_DIR}/generate.sh << EOF
-arch=${ARCH}
-image_arch=${IMAGE_ARCH}
-ansible_system=${ANSIBLE_SYSTEM}
-ansible_architecture=${ANSIBLE_ARCHITECTURE}
-EOF
-
-# generate all component version by $DOWNLOAD_YML
-grep 'kube_version:' ${REPO_ROOT_DIR}/${KUBE_VERSION_YAML} \
-| sed 's/: /=/g' >> ${TEMP_DIR}/generate.sh
-grep '_version:' ${REPO_ROOT_DIR}/${DOWNLOAD_YML} \
-| sed 's/: /=/g;s/{{/${/g;s/}}/}/g' | tr -d ' ' >> ${TEMP_DIR}/generate.sh
-sed -i 's/kube_major_version=.*/kube_major_version=${kube_version%.*}/g' ${TEMP_DIR}/generate.sh
-sed -i 's/crictl_version=.*/crictl_version=${kube_version%.*}.0/g' ${TEMP_DIR}/generate.sh
-
-# generate all download files url
+# generate all download files url template
 grep 'download_url:' ${REPO_ROOT_DIR}/${DOWNLOAD_YML} \
-| sed 's/: /=/g;s/ //g;s/{{/${/g;s/}}/}/g;s/|lower//g;s/^.*_url=/echo /g' >> ${TEMP_DIR}/generate.sh
+    | sed 's/^.*_url: //g;s/\"//g' > ${TEMP_DIR}/files.list.template
 
-# generate all images list
-grep -E '_repo:|_tag:' ${REPO_ROOT_DIR}/${DOWNLOAD_YML} \
-| sed "s#{%- if image_arch != 'amd64' -%}-{{ image_arch }}{%- endif -%}#{{arch}}#g" \
-| sed 's/: /=/g;s/{{/${/g;s/}}/}/g' | tr -d ' ' >> ${TEMP_DIR}/generate.sh
+# generate all images list template
 sed -n '/^downloads:/,/download_defaults:/p' ${REPO_ROOT_DIR}/${DOWNLOAD_YML} \
-| sed -n "s/repo: //p;s/tag: //p" | tr -d ' ' | sed 's/{{/${/g;s/}}/}/g' \
-| sed 'N;s#\n# #g' | tr ' ' ':' | sed 's/^/echo /g' >> ${TEMP_DIR}/generate.sh
+    | sed -n "s/repo: //p;s/tag: //p" | tr -d ' ' \
+    | sed 'N;s#\n# #g' | tr ' ' ':' | sed 's/\"//g' > ${TEMP_DIR}/images.list.template
 
-# special handling for https://github.com/kubernetes-sigs/kubespray/pull/7570
-sed -i 's#^coredns_image_repo=.*#coredns_image_repo=${kube_image_repo}$(if printf "%s\\n%s\\n" v1.21 ${kube_version%.*} | sort --check=quiet --version-sort; then echo -n /coredns/coredns;else echo -n /coredns; fi)#' ${TEMP_DIR}/generate.sh
-sed -i 's#^coredns_image_tag=.*#coredns_image_tag=$(if printf "%s\\n%s\\n" v1.21 ${kube_version%.*} | sort --check=quiet --version-sort; then echo -n ${coredns_version};else echo -n ${coredns_version/v/}; fi)#' ${TEMP_DIR}/generate.sh
-
-# add kube-* images to images list
+# add kube-* images to images list template
+# Those container images are downloaded by kubeadm, then roles/download/defaults/main.yml
+# doesn't contain those images. That is reason why here needs to put those images into the
+# list separately.
 KUBE_IMAGES="kube-apiserver kube-controller-manager kube-scheduler kube-proxy"
-echo "${KUBE_IMAGES}" | tr ' ' '\n' | xargs -L1 -I {} \
-echo 'echo ${kube_image_repo}/{}:${kube_version}' >> ${TEMP_DIR}/generate.sh
+for i in $KUBE_IMAGES; do
+    echo "{{ kube_image_repo }}/$i:{{ kube_version }}" >> ${TEMP_DIR}/images.list.template
+done
 
-# print files.list and images.list
-bash ${TEMP_DIR}/generate.sh | grep 'https' | sort > ${TEMP_DIR}/files.list
-bash ${TEMP_DIR}/generate.sh | grep -v 'https' | sort > ${TEMP_DIR}/images.list
+# run ansible to expand templates
+/bin/cp ${CURRENT_DIR}/generate_list.yml ${REPO_ROOT_DIR}
+
+(cd ${REPO_ROOT_DIR} && ansible-playbook $* generate_list.yml && /bin/rm generate_list.yml) || exit 1

contrib/offline/generate_list.yml

@@ -0,0 +1,19 @@
+---
+- hosts: localhost
+  become: no
+
+  roles:
+    # Just load default variables from roles.
+    - role: kubespray-defaults
+      when: false
+    - role: download
+      when: false
+
+  tasks:
+    # Generate files.list and images.list files from templates.
+    - template:
+        src: ./contrib/offline/temp/{{ item }}.list.template
+        dest: ./contrib/offline/temp/{{ item }}.list
+      with_items:
+        - files
+        - images

contrib/offline/manage-offline-container-images.sh

@@ -15,7 +15,7 @@ function create_container_image_tar() {
 	IMAGES=$(kubectl describe pods --all-namespaces | grep " Image:" | awk '{print $2}' | sort | uniq)
 	# NOTE: etcd and pause cannot be seen as pods.
 	# The pause image is used for --pod-infra-container-image option of kubelet.
-	EXT_IMAGES=$(kubectl cluster-info dump | egrep "quay.io/coreos/etcd:|k8s.gcr.io/pause:" | sed s@\"@@g)
+	EXT_IMAGES=$(kubectl cluster-info dump | egrep "quay.io/coreos/etcd:|registry.k8s.io/pause:" | sed s@\"@@g)
 	IMAGES="${IMAGES} ${EXT_IMAGES}"
 
 	rm -f  ${IMAGE_TAR_FILE}
@@ -46,15 +46,16 @@ function create_container_image_tar() {
 
 		# NOTE: Here removes the following repo parts from each image
 		# so that these parts will be replaced with Kubespray.
-		# - kube_image_repo: "k8s.gcr.io"
+		# - kube_image_repo: "registry.k8s.io"
 		# - gcr_image_repo: "gcr.io"
 		# - docker_image_repo: "docker.io"
 		# - quay_image_repo: "quay.io"
 		FIRST_PART=$(echo ${image} | awk -F"/" '{print $1}')
-		if [ "${FIRST_PART}" = "k8s.gcr.io" ] ||
+		if [ "${FIRST_PART}" = "registry.k8s.io" ] ||
 		   [ "${FIRST_PART}" = "gcr.io" ] ||
 		   [ "${FIRST_PART}" = "docker.io" ] ||
-		   [ "${FIRST_PART}" = "quay.io" ]; then
+		   [ "${FIRST_PART}" = "quay.io" ] ||
+		   [ "${FIRST_PART}" = "${PRIVATE_REGISTRY}" ]; then
 			image=$(echo ${image} | sed s@"${FIRST_PART}/"@@)
 		fi
 		echo "${FILE_NAME}  ${image}" >> ${IMAGE_LIST}
@@ -152,7 +153,8 @@ else
 	echo "(2) Deploy local container registry and register the container images to the registry."
 	echo ""
 	echo "Step(1) should be done online site as a preparation, then we bring"
-	echo "the gotten images to the target offline environment."
+	echo "the gotten images to the target offline environment. if images are from"
+	echo "a private registry, you need to set PRIVATE_REGISTRY environment variable."
 	echo "Then we will run step(2) for registering the images to local registry."
 	echo ""
 	echo "${IMAGE_TAR_FILE} is created to contain your container images."

contrib/offline/manage-offline-files.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+CURRENT_DIR=$( dirname "$(readlink -f "$0")" )
+OFFLINE_FILES_DIR_NAME="offline-files"
+OFFLINE_FILES_DIR="${CURRENT_DIR}/${OFFLINE_FILES_DIR_NAME}"
+OFFLINE_FILES_ARCHIVE="${CURRENT_DIR}/offline-files.tar.gz"
+FILES_LIST=${FILES_LIST:-"${CURRENT_DIR}/temp/files.list"}
+NGINX_PORT=8080
+
+# download files
+if [ ! -f "${FILES_LIST}" ]; then
+    echo "${FILES_LIST} should exist, run ./generate_list.sh first."
+    exit 1
+fi
+
+rm -rf "${OFFLINE_FILES_DIR}"
+rm "${OFFLINE_FILES_ARCHIVE}"
+mkdir  "${OFFLINE_FILES_DIR}"
+
+wget -x -P "${OFFLINE_FILES_DIR}" -i "${FILES_LIST}"
+tar -czvf "${OFFLINE_FILES_ARCHIVE}"  "${OFFLINE_FILES_DIR_NAME}"
+
+[ -n "$NO_HTTP_SERVER" ] && echo "skip to run nginx" && exit 0
+
+# run nginx container server
+if command -v nerdctl 1>/dev/null 2>&1; then
+    runtime="nerdctl"
+elif command -v podman 1>/dev/null 2>&1; then
+    runtime="podman"
+elif command -v docker 1>/dev/null 2>&1; then
+    runtime="docker"
+else
+    echo "No supported container runtime found"
+    exit 1
+fi
+
+sudo "${runtime}" container inspect nginx >/dev/null 2>&1
+if [ $? -ne 0 ]; then
+    sudo "${runtime}" run \
+        --restart=always -d -p ${NGINX_PORT}:80 \
+        --volume "${OFFLINE_FILES_DIR}:/usr/share/nginx/html/download" \
+        --volume "$(pwd)"/nginx.conf:/etc/nginx/nginx.conf \
+        --name nginx nginx:alpine
+fi

contrib/offline/nginx.conf

@@ -0,0 +1,39 @@
+user nginx;
+worker_processes auto;
+error_log /var/log/nginx/error.log;
+pid /run/nginx.pid;
+include /usr/share/nginx/modules/*.conf;
+events {
+    worker_connections 1024;
+}
+http {
+    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+                      '$status $body_bytes_sent "$http_referer" '
+                      '"$http_user_agent" "$http_x_forwarded_for"';
+    access_log  /var/log/nginx/access.log  main;
+    sendfile            on;
+    tcp_nopush          on;
+    tcp_nodelay         on;
+    keepalive_timeout   65;
+    types_hash_max_size 2048;
+    default_type        application/octet-stream;
+    include /etc/nginx/conf.d/*.conf;
+    server {
+        listen       80 default_server;
+        listen       [::]:80 default_server;
+        server_name  _;
+        include /etc/nginx/default.d/*.conf;
+        location / {
+            root    /usr/share/nginx/html/download;
+        autoindex on;
+        autoindex_exact_size off;
+        autoindex_localtime on;
+        }
+        error_page 404 /404.html;
+            location = /40x.html {
+        }
+        error_page 500 502 503 504 /50x.html;
+            location = /50x.html {
+        }
+    }
+}

contrib/terraform/aws/README.md

@@ -36,8 +36,7 @@ terraform apply -var-file=credentials.tfvars
 ```
 
 - Terraform automatically creates an Ansible Inventory file called `hosts` with the created infrastructure in the directory `inventory`
-- Ansible will automatically generate an ssh config file for your bastion hosts. To connect to hosts with ssh using bastion host use generated ssh-bastion.conf.
-  Ansible automatically detects bastion and changes ssh_args  
+- Ansible will automatically generate an ssh config file for your bastion hosts. To connect to hosts with ssh using bastion host use generated `ssh-bastion.conf`. Ansible automatically detects bastion and changes `ssh_args`
 
 ```commandline
 ssh -F ./ssh-bastion.conf user@$ip

contrib/terraform/aws/create-infrastructure.tf

@@ -20,20 +20,20 @@ module "aws-vpc" {
 
   aws_cluster_name         = var.aws_cluster_name
   aws_vpc_cidr_block       = var.aws_vpc_cidr_block
-  aws_avail_zones          = slice(data.aws_availability_zones.available.names, 0, length(var.aws_cidr_subnets_public) <= length(data.aws_availability_zones.available.names) ? length(var.aws_cidr_subnets_public) : length(data.aws_availability_zones.available.names))
+  aws_avail_zones          = data.aws_availability_zones.available.names
   aws_cidr_subnets_private = var.aws_cidr_subnets_private
   aws_cidr_subnets_public  = var.aws_cidr_subnets_public
   default_tags             = var.default_tags
 }
 
-module "aws-elb" {
-  source = "./modules/elb"
+module "aws-nlb" {
+  source = "./modules/nlb"
 
   aws_cluster_name      = var.aws_cluster_name
   aws_vpc_id            = module.aws-vpc.aws_vpc_id
-  aws_avail_zones       = slice(data.aws_availability_zones.available.names, 0, length(var.aws_cidr_subnets_public) <= length(data.aws_availability_zones.available.names) ? length(var.aws_cidr_subnets_public) : length(data.aws_availability_zones.available.names))
+  aws_avail_zones       = data.aws_availability_zones.available.names
   aws_subnet_ids_public = module.aws-vpc.aws_subnet_ids_public
-  aws_elb_api_port      = var.aws_elb_api_port
+  aws_nlb_api_port      = var.aws_nlb_api_port
   k8s_secure_api_port   = var.k8s_secure_api_port
   default_tags          = var.default_tags
 }
@@ -54,7 +54,6 @@ resource "aws_instance" "bastion-server" {
   instance_type               = var.aws_bastion_size
   count                       = var.aws_bastion_num
   associate_public_ip_address = true
-  availability_zone           = element(slice(data.aws_availability_zones.available.names, 0, length(var.aws_cidr_subnets_public) <= length(data.aws_availability_zones.available.names) ? length(var.aws_cidr_subnets_public) : length(data.aws_availability_zones.available.names)), count.index)
   subnet_id                   = element(module.aws-vpc.aws_subnet_ids_public, count.index)
 
   vpc_security_group_ids = module.aws-vpc.aws_security_group
@@ -79,8 +78,7 @@ resource "aws_instance" "k8s-master" {
 
   count = var.aws_kube_master_num
 
-  availability_zone = element(slice(data.aws_availability_zones.available.names, 0, length(var.aws_cidr_subnets_public) <= length(data.aws_availability_zones.available.names) ? length(var.aws_cidr_subnets_public) : length(data.aws_availability_zones.available.names)), count.index)
-  subnet_id         = element(module.aws-vpc.aws_subnet_ids_private, count.index)
+  subnet_id = element(module.aws-vpc.aws_subnet_ids_private, count.index)
 
   vpc_security_group_ids = module.aws-vpc.aws_security_group
 
@@ -98,10 +96,10 @@ resource "aws_instance" "k8s-master" {
   }))
 }
 
-resource "aws_elb_attachment" "attach_master_nodes" {
-  count    = var.aws_kube_master_num
-  elb      = module.aws-elb.aws_elb_api_id
-  instance = element(aws_instance.k8s-master.*.id, count.index)
+resource "aws_lb_target_group_attachment" "tg-attach_master_nodes" {
+  count            = var.aws_kube_master_num
+  target_group_arn = module.aws-nlb.aws_nlb_api_tg_arn
+  target_id        = element(aws_instance.k8s-master.*.private_ip, count.index)
 }
 
 resource "aws_instance" "k8s-etcd" {
@@ -110,8 +108,7 @@ resource "aws_instance" "k8s-etcd" {
 
   count = var.aws_etcd_num
 
-  availability_zone = element(slice(data.aws_availability_zones.available.names, 0, length(var.aws_cidr_subnets_public) <= length(data.aws_availability_zones.available.names) ? length(var.aws_cidr_subnets_public) : length(data.aws_availability_zones.available.names)), count.index)
-  subnet_id         = element(module.aws-vpc.aws_subnet_ids_private, count.index)
+  subnet_id = element(module.aws-vpc.aws_subnet_ids_private, count.index)
 
   vpc_security_group_ids = module.aws-vpc.aws_security_group
 
@@ -134,8 +131,7 @@ resource "aws_instance" "k8s-worker" {
 
   count = var.aws_kube_worker_num
 
-  availability_zone = element(slice(data.aws_availability_zones.available.names, 0, length(var.aws_cidr_subnets_public) <= length(data.aws_availability_zones.available.names) ? length(var.aws_cidr_subnets_public) : length(data.aws_availability_zones.available.names)), count.index)
-  subnet_id         = element(module.aws-vpc.aws_subnet_ids_private, count.index)
+  subnet_id = element(module.aws-vpc.aws_subnet_ids_private, count.index)
 
   vpc_security_group_ids = module.aws-vpc.aws_security_group
 
@@ -168,7 +164,7 @@ data "template_file" "inventory" {
     list_node                 = join("\n", aws_instance.k8s-worker.*.private_dns)
     connection_strings_etcd   = join("\n", formatlist("%s ansible_host=%s", aws_instance.k8s-etcd.*.private_dns, aws_instance.k8s-etcd.*.private_ip))
     list_etcd                 = join("\n", ((var.aws_etcd_num > 0) ? (aws_instance.k8s-etcd.*.private_dns) : (aws_instance.k8s-master.*.private_dns)))
-    elb_api_fqdn              = "apiserver_loadbalancer_domain_name=\"${module.aws-elb.aws_elb_api_fqdn}\""
+    nlb_api_fqdn              = "apiserver_loadbalancer_domain_name=\"${module.aws-nlb.aws_nlb_api_fqdn}\""
   }
 }
 

contrib/terraform/aws/modules/elb/main.tf

@@ -1,57 +0,0 @@
-resource "aws_security_group" "aws-elb" {
-  name   = "kubernetes-${var.aws_cluster_name}-securitygroup-elb"
-  vpc_id = var.aws_vpc_id
-
-  tags = merge(var.default_tags, tomap({
-    Name = "kubernetes-${var.aws_cluster_name}-securitygroup-elb"
-  }))
-}
-
-resource "aws_security_group_rule" "aws-allow-api-access" {
-  type              = "ingress"
-  from_port         = var.aws_elb_api_port
-  to_port           = var.k8s_secure_api_port
-  protocol          = "TCP"
-  cidr_blocks       = ["0.0.0.0/0"]
-  security_group_id = aws_security_group.aws-elb.id
-}
-
-resource "aws_security_group_rule" "aws-allow-api-egress" {
-  type              = "egress"
-  from_port         = 0
-  to_port           = 65535
-  protocol          = "TCP"
-  cidr_blocks       = ["0.0.0.0/0"]
-  security_group_id = aws_security_group.aws-elb.id
-}
-
-# Create a new AWS ELB for K8S API
-resource "aws_elb" "aws-elb-api" {
-  name            = "kubernetes-elb-${var.aws_cluster_name}"
-  subnets         = var.aws_subnet_ids_public
-  security_groups = [aws_security_group.aws-elb.id]
-
-  listener {
-    instance_port     = var.k8s_secure_api_port
-    instance_protocol = "tcp"
-    lb_port           = var.aws_elb_api_port
-    lb_protocol       = "tcp"
-  }
-
-  health_check {
-    healthy_threshold   = 2
-    unhealthy_threshold = 2
-    timeout             = 3
-    target              = "HTTPS:${var.k8s_secure_api_port}/healthz"
-    interval            = 30
-  }
-
-  cross_zone_load_balancing   = true
-  idle_timeout                = 400
-  connection_draining         = true
-  connection_draining_timeout = 400
-
-  tags = merge(var.default_tags, tomap({
-    Name = "kubernetes-${var.aws_cluster_name}-elb-api"
-  }))
-}

contrib/terraform/aws/modules/elb/outputs.tf

@@ -1,7 +0,0 @@
-output "aws_elb_api_id" {
-  value = aws_elb.aws-elb-api.id
-}
-
-output "aws_elb_api_fqdn" {
-  value = aws_elb.aws-elb-api.dns_name
-}

contrib/terraform/aws/modules/nlb/main.tf

@@ -0,0 +1,41 @@
+# Create a new AWS NLB for K8S API
+resource "aws_lb" "aws-nlb-api" {
+  name                             = "kubernetes-nlb-${var.aws_cluster_name}"
+  load_balancer_type               = "network"
+  subnets                          = length(var.aws_subnet_ids_public) <= length(var.aws_avail_zones) ? var.aws_subnet_ids_public : slice(var.aws_subnet_ids_public, 0, length(var.aws_avail_zones))
+  idle_timeout                     = 400
+  enable_cross_zone_load_balancing = true
+
+  tags = merge(var.default_tags, tomap({
+    Name = "kubernetes-${var.aws_cluster_name}-nlb-api"
+  }))
+}
+
+# Create a new AWS NLB Instance Target Group
+resource "aws_lb_target_group" "aws-nlb-api-tg" {
+  name        = "kubernetes-nlb-tg-${var.aws_cluster_name}"
+  port        = var.k8s_secure_api_port
+  protocol    = "TCP"
+  target_type = "ip"
+  vpc_id      = var.aws_vpc_id
+
+  health_check {
+    healthy_threshold   = 2
+    unhealthy_threshold = 2
+    interval            = 30
+    protocol            = "HTTPS"
+    path                = "/healthz"
+  }
+}
+
+# Create a new AWS NLB Listener listen to target group
+resource "aws_lb_listener" "aws-nlb-api-listener" {
+  load_balancer_arn = aws_lb.aws-nlb-api.arn
+  port              = var.aws_nlb_api_port
+  protocol          = "TCP"
+
+  default_action {
+    type             = "forward"
+    target_group_arn = aws_lb_target_group.aws-nlb-api-tg.arn
+  }
+}

contrib/terraform/aws/modules/nlb/outputs.tf

@@ -0,0 +1,11 @@
+output "aws_nlb_api_id" {
+  value = aws_lb.aws-nlb-api.id
+}
+
+output "aws_nlb_api_fqdn" {
+  value = aws_lb.aws-nlb-api.dns_name
+}
+
+output "aws_nlb_api_tg_arn" {
+  value = aws_lb_target_group.aws-nlb-api-tg.arn
+}

contrib/terraform/aws/modules/nlb/variables.tf

@@ -6,8 +6,8 @@ variable "aws_vpc_id" {
   description = "AWS VPC ID"
 }
 
-variable "aws_elb_api_port" {
-  description = "Port for AWS ELB"
+variable "aws_nlb_api_port" {
+  description = "Port for AWS NLB"
 }
 
 variable "k8s_secure_api_port" {

contrib/terraform/aws/modules/vpc/main.tf

@@ -25,13 +25,14 @@ resource "aws_internet_gateway" "cluster-vpc-internetgw" {
 
 resource "aws_subnet" "cluster-vpc-subnets-public" {
   vpc_id            = aws_vpc.cluster-vpc.id
-  count             = length(var.aws_avail_zones)
-  availability_zone = element(var.aws_avail_zones, count.index)
+  count             = length(var.aws_cidr_subnets_public)
+  availability_zone = element(var.aws_avail_zones, count.index % length(var.aws_avail_zones))
   cidr_block        = element(var.aws_cidr_subnets_public, count.index)
 
   tags = merge(var.default_tags, tomap({
     Name = "kubernetes-${var.aws_cluster_name}-${element(var.aws_avail_zones, count.index)}-public"
-    "kubernetes.io/cluster/${var.aws_cluster_name}" = "member"
+    "kubernetes.io/cluster/${var.aws_cluster_name}" = "shared"
+    "kubernetes.io/role/elb" = "1"
   }))
 }
 
@@ -43,12 +44,14 @@ resource "aws_nat_gateway" "cluster-nat-gateway" {
 
 resource "aws_subnet" "cluster-vpc-subnets-private" {
   vpc_id            = aws_vpc.cluster-vpc.id
-  count             = length(var.aws_avail_zones)
-  availability_zone = element(var.aws_avail_zones, count.index)
+  count             = length(var.aws_cidr_subnets_private)
+  availability_zone = element(var.aws_avail_zones, count.index % length(var.aws_avail_zones))
   cidr_block        = element(var.aws_cidr_subnets_private, count.index)
 
   tags = merge(var.default_tags, tomap({
     Name = "kubernetes-${var.aws_cluster_name}-${element(var.aws_avail_zones, count.index)}-private"
+    "kubernetes.io/cluster/${var.aws_cluster_name}" = "shared"
+    "kubernetes.io/role/internal-elb" = "1"
   }))
 }
 

contrib/terraform/aws/output.tf

@@ -14,8 +14,8 @@ output "etcd" {
   value = join("\n", ((var.aws_etcd_num > 0) ? (aws_instance.k8s-etcd.*.private_ip) : (aws_instance.k8s-master.*.private_ip)))
 }
 
-output "aws_elb_api_fqdn" {
-  value = "${module.aws-elb.aws_elb_api_fqdn}:${var.aws_elb_api_port}"
+output "aws_nlb_api_fqdn" {
+  value = "${module.aws-nlb.aws_nlb_api_fqdn}:${var.aws_nlb_api_port}"
 }
 
 output "inventory" {

contrib/terraform/aws/sample-inventory/cluster.tfvars

@@ -33,9 +33,9 @@ aws_kube_worker_size = "t2.medium"
 
 aws_kube_worker_disk_size = 50
 
-#Settings AWS ELB
+#Settings AWS NLB
 
-aws_elb_api_port = 6443
+aws_nlb_api_port = 6443
 
 k8s_secure_api_port = 6443
 

contrib/terraform/aws/templates/inventory.tpl

@@ -24,4 +24,4 @@ kube_control_plane
 calico_rr
 
 [k8s_cluster:vars]
-${elb_api_fqdn}
+${nlb_api_fqdn}

contrib/terraform/aws/terraform.tfvars

@@ -32,7 +32,7 @@ aws_kube_worker_size      = "t3.medium"
 aws_kube_worker_disk_size = 50
 
 #Settings AWS ELB
-aws_elb_api_port    = 6443
+aws_nlb_api_port    = 6443
 k8s_secure_api_port = 6443
 
 default_tags = {

contrib/terraform/aws/terraform.tfvars.example

@@ -25,7 +25,7 @@ aws_kube_worker_size = "t3.medium"
 aws_kube_worker_disk_size = 50
 
 #Settings AWS ELB
-aws_elb_api_port = 6443
+aws_nlb_api_port = 6443
 k8s_secure_api_port = 6443
 
 default_tags = { }

contrib/terraform/aws/variables.tf

@@ -104,11 +104,11 @@ variable "aws_kube_worker_size" {
 }
 
 /*
-* AWS ELB Settings
+* AWS NLB Settings
 *
 */
-variable "aws_elb_api_port" {
-  description = "Port for AWS ELB"
+variable "aws_nlb_api_port" {
+  description = "Port for AWS NLB"
 }
 
 variable "k8s_secure_api_port" {

contrib/terraform/equinix/README.md

@@ -12,7 +12,7 @@ This will install a Kubernetes cluster on Equinix Metal. It should work in all l
 The terraform configuration inspects variables found in
 [variables.tf](variables.tf) to create resources in your Equinix Metal project.
 There is a [python script](../terraform.py) that reads the generated`.tfstate`
-file to generate a dynamic inventory that is consumed by [cluster.yml](../../..//cluster.yml)
+file to generate a dynamic inventory that is consumed by [cluster.yml](../../../cluster.yml)
 to actually install Kubernetes with Kubespray.
 
 ### Kubernetes Nodes
@@ -35,7 +35,7 @@ now six total etcd replicas.
 ## Requirements
 
 - [Install Terraform](https://www.terraform.io/intro/getting-started/install.html)
-- Install dependencies: `sudo pip install -r requirements.txt`
+- [Install Ansible dependencies](/docs/ansible.md#installing-ansible)
 - Account with Equinix Metal
 - An SSH key pair
 
@@ -60,16 +60,16 @@ Terraform will be used to provision all of the Equinix Metal resources with base
 Create an inventory directory for your cluster by copying the existing sample and linking the `hosts` script (used to build the inventory based on Terraform state):
 
 ```ShellSession
-cp -LRp contrib/terraform/packet/sample-inventory inventory/$CLUSTER
+cp -LRp contrib/terraform/equinix/sample-inventory inventory/$CLUSTER
 cd inventory/$CLUSTER
-ln -s ../../contrib/terraform/packet/hosts
+ln -s ../../contrib/terraform/equinix/hosts
 ```
 
 This will be the base for subsequent Terraform commands.
 
 #### Equinix Metal API access
 
-Your Equinix Metal API key must be available in the `PACKET_AUTH_TOKEN` environment variable.
+Your Equinix Metal API key must be available in the `METAL_AUTH_TOKEN` environment variable.
 This key is typically stored outside of the code repo since it is considered secret.
 If someone gets this key, they can startup/shutdown hosts in your project!
 
@@ -80,10 +80,12 @@ The Equinix Metal Project ID associated with the key will be set later in `clust
 
 For more information about the API, please see [Equinix Metal API](https://metal.equinix.com/developers/api/).
 
+For more information about terraform provider authentication, please see [the equinix provider documentation](https://registry.terraform.io/providers/equinix/equinix/latest/docs).
+
 Example:
 
 ```ShellSession
-export PACKET_AUTH_TOKEN="Example-API-Token"
+export METAL_AUTH_TOKEN="Example-API-Token"
 ```
 
 Note that to deploy several clusters within the same project you need to use [terraform workspace](https://www.terraform.io/docs/state/workspaces.html#using-workspaces).
@@ -101,7 +103,7 @@ This helps when identifying which hosts are associated with each cluster.
 While the defaults in variables.tf will successfully deploy a cluster, it is recommended to set the following values:
 
 - cluster_name = the name of the inventory directory created above as $CLUSTER
-- packet_project_id = the Equinix Metal Project ID associated with the Equinix Metal API token above
+- equinix_metal_project_id = the Equinix Metal Project ID associated with the Equinix Metal API token above
 
 #### Enable localhost access
 
@@ -119,12 +121,13 @@ Once the Kubespray playbooks are run, a Kubernetes configuration file will be wr
 
 In the cluster's inventory folder, the following files might be created (either by Terraform
 or manually), to prevent you from pushing them accidentally they are in a
-`.gitignore` file in the `terraform/packet` directory :
+`.gitignore` file in the `contrib/terraform/equinix` directory :
 
 - `.terraform`
 - `.tfvars`
 - `.tfstate`
 - `.tfstate.backup`
+- `.lock.hcl`
 
 You can still add them manually if you want to.
 
@@ -135,7 +138,7 @@ plugins. This is accomplished as follows:
 
 ```ShellSession
 cd inventory/$CLUSTER
-terraform init ../../contrib/terraform/packet
+terraform -chdir=../../contrib/terraform/metal init -var-file=cluster.tfvars
 ```
 
 This should finish fairly quickly telling you Terraform has successfully initialized and loaded necessary modules.
@@ -146,7 +149,7 @@ You can apply the Terraform configuration to your cluster with the following com
 issued from your cluster's inventory directory (`inventory/$CLUSTER`):
 
 ```ShellSession
-terraform apply -var-file=cluster.tfvars ../../contrib/terraform/packet
+terraform -chdir=../../contrib/terraform/equinix apply -var-file=cluster.tfvars
 export ANSIBLE_HOST_KEY_CHECKING=False
 ansible-playbook -i hosts ../../cluster.yml
 ```
@@ -156,7 +159,7 @@ ansible-playbook -i hosts ../../cluster.yml
 You can destroy your new cluster with the following command issued from the cluster's inventory directory:
 
 ```ShellSession
-terraform destroy -var-file=cluster.tfvars ../../contrib/terraform/packet
+terraform -chdir=../../contrib/terraform/equinix destroy -var-file=cluster.tfvars
 ```
 
 If you've started the Ansible run, it may also be a good idea to do some manual cleanup:

contrib/terraform/equinix/kubespray.tf

@@ -1,63 +1,57 @@
-# Configure the Equinix Metal Provider
-provider "packet" {
-  version = "~> 2.0"
-}
-
-resource "packet_ssh_key" "k8s" {
+resource "equinix_metal_ssh_key" "k8s" {
   count      = var.public_key_path != "" ? 1 : 0
   name       = "kubernetes-${var.cluster_name}"
   public_key = chomp(file(var.public_key_path))
 }
 
-resource "packet_device" "k8s_master" {
-  depends_on = [packet_ssh_key.k8s]
+resource "equinix_metal_device" "k8s_master" {
+  depends_on = [equinix_metal_ssh_key.k8s]
 
   count            = var.number_of_k8s_masters
   hostname         = "${var.cluster_name}-k8s-master-${count.index + 1}"
   plan             = var.plan_k8s_masters
-  facilities       = [var.facility]
+  metro            = var.metro
   operating_system = var.operating_system
   billing_cycle    = var.billing_cycle
-  project_id       = var.packet_project_id
+  project_id       = var.equinix_metal_project_id
   tags             = ["cluster-${var.cluster_name}", "k8s_cluster", "kube_control_plane", "etcd", "kube_node"]
 }
 
-resource "packet_device" "k8s_master_no_etcd" {
-  depends_on = [packet_ssh_key.k8s]
+resource "equinix_metal_device" "k8s_master_no_etcd" {
+  depends_on = [equinix_metal_ssh_key.k8s]
 
   count            = var.number_of_k8s_masters_no_etcd
   hostname         = "${var.cluster_name}-k8s-master-${count.index + 1}"
   plan             = var.plan_k8s_masters_no_etcd
-  facilities       = [var.facility]
+  metro            = var.metro
   operating_system = var.operating_system
   billing_cycle    = var.billing_cycle
-  project_id       = var.packet_project_id
+  project_id       = var.equinix_metal_project_id
   tags             = ["cluster-${var.cluster_name}", "k8s_cluster", "kube_control_plane"]
 }
 
-resource "packet_device" "k8s_etcd" {
-  depends_on = [packet_ssh_key.k8s]
+resource "equinix_metal_device" "k8s_etcd" {
+  depends_on = [equinix_metal_ssh_key.k8s]
 
   count            = var.number_of_etcd
   hostname         = "${var.cluster_name}-etcd-${count.index + 1}"
   plan             = var.plan_etcd
-  facilities       = [var.facility]
+  metro            = var.metro
   operating_system = var.operating_system
   billing_cycle    = var.billing_cycle
-  project_id       = var.packet_project_id
+  project_id       = var.equinix_metal_project_id
   tags             = ["cluster-${var.cluster_name}", "etcd"]
 }
 
-resource "packet_device" "k8s_node" {
-  depends_on = [packet_ssh_key.k8s]
+resource "equinix_metal_device" "k8s_node" {
+  depends_on = [equinix_metal_ssh_key.k8s]
 
   count            = var.number_of_k8s_nodes
   hostname         = "${var.cluster_name}-k8s-node-${count.index + 1}"
   plan             = var.plan_k8s_nodes
-  facilities       = [var.facility]
+  metro            = var.metro
   operating_system = var.operating_system
   billing_cycle    = var.billing_cycle
-  project_id       = var.packet_project_id
+  project_id       = var.equinix_metal_project_id
   tags             = ["cluster-${var.cluster_name}", "k8s_cluster", "kube_node"]
 }
-

contrib/terraform/equinix/output.tf

@@ -0,0 +1,15 @@
+output "k8s_masters" {
+  value = equinix_metal_device.k8s_master.*.access_public_ipv4
+}
+
+output "k8s_masters_no_etc" {
+  value = equinix_metal_device.k8s_master_no_etcd.*.access_public_ipv4
+}
+
+output "k8s_etcds" {
+  value = equinix_metal_device.k8s_etcd.*.access_public_ipv4
+}
+
+output "k8s_nodes" {
+  value = equinix_metal_device.k8s_node.*.access_public_ipv4
+}

contrib/terraform/equinix/provider.tf

@@ -0,0 +1,17 @@
+terraform {
+  required_version = ">= 1.0.0"
+
+  provider_meta "equinix" {
+    module_name = "kubespray"
+  }
+  required_providers {
+    equinix = {
+      source  = "equinix/equinix"
+      version = "~> 1.14"
+    }
+  }
+}
+
+# Configure the Equinix Metal Provider
+provider "equinix" {
+}

contrib/terraform/equinix/sample-inventory/cluster.tfvars

@@ -1,16 +1,19 @@
 # your Kubernetes cluster name here
 cluster_name = "mycluster"
 
-# Your Equinix Metal project ID. See hhttps://metal.equinix.com/developers/docs/accounts/
-packet_project_id = "Example-API-Token"
+# Your Equinix Metal project ID. See https://metal.equinix.com/developers/docs/accounts/
+equinix_metal_project_id = "Example-Project-Id"
 
 # The public SSH key to be uploaded into authorized_keys in bare metal Equinix Metal nodes provisioned
 # leave this value blank if the public key is already setup in the Equinix Metal project
 # Terraform will complain if the public key is setup in Equinix Metal
 public_key_path = "~/.ssh/id_rsa.pub"
 
-# cluster location
-facility = "ewr1"
+# Equinix interconnected bare metal across our global metros.
+metro = "da"
+
+# operating_system
+operating_system = "ubuntu_22_04"
 
 # standalone etcds
 number_of_etcd = 0

contrib/terraform/equinix/variables.tf

@@ -2,12 +2,12 @@ variable "cluster_name" {
   default = "kubespray"
 }
 
-variable "packet_project_id" {
+variable "equinix_metal_project_id" {
   description = "Your Equinix Metal project ID. See https://metal.equinix.com/developers/docs/accounts/"
 }
 
 variable "operating_system" {
-  default = "ubuntu_16_04"
+  default = "ubuntu_22_04"
 }
 
 variable "public_key_path" {
@@ -19,28 +19,28 @@ variable "billing_cycle" {
   default = "hourly"
 }
 
-variable "facility" {
-  default = "dfw2"
+variable "metro" {
+  default = "da"
 }
 
 variable "plan_k8s_masters" {
-  default = "c2.medium.x86"
+  default = "c3.small.x86"
 }
 
 variable "plan_k8s_masters_no_etcd" {
-  default = "c2.medium.x86"
+  default = "c3.small.x86"
 }
 
 variable "plan_etcd" {
-  default = "c2.medium.x86"
+  default = "c3.small.x86"
 }
 
 variable "plan_k8s_nodes" {
-  default = "c2.medium.x86"
+  default = "c3.medium.x86"
 }
 
 variable "number_of_k8s_masters" {
-  default = 0
+  default = 1
 }
 
 variable "number_of_k8s_masters_no_etcd" {
@@ -52,6 +52,5 @@ variable "number_of_etcd" {
 }
 
 variable "number_of_k8s_nodes" {
-  default = 0
+  default = 1
 }
-

contrib/terraform/exoscale/README.md

@@ -31,9 +31,7 @@ The setup looks like following
 
 ## Requirements
 
-* Terraform 0.13.0 or newer
-
-*0.12 also works if you modify the provider block to include version and remove all `versions.tf` files*
+* Terraform 0.13.0 or newer (0.12 also works if you modify the provider block to include version and remove all `versions.tf` files)
 
 ## Quickstart
 

contrib/terraform/exoscale/main.tf

@@ -3,8 +3,8 @@ provider "exoscale" {}
 module "kubernetes" {
   source = "./modules/kubernetes-cluster"
 
-  prefix = var.prefix
-
+  prefix   = var.prefix
+  zone     = var.zone
   machines = var.machines
 
   ssh_public_keys = var.ssh_public_keys

contrib/terraform/gcp/README.md

@@ -74,14 +74,28 @@ ansible-playbook -i contrib/terraform/gcs/inventory.ini cluster.yml -b -v
 * `ssh_whitelist`: List of IP ranges (CIDR) that will be allowed to ssh to the nodes
 * `api_server_whitelist`: List of IP ranges (CIDR) that will be allowed to connect to the API server
 * `nodeport_whitelist`: List of IP ranges (CIDR) that will be allowed to connect to the kubernetes nodes on port 30000-32767 (kubernetes nodeports)
+* `ingress_whitelist`: List of IP ranges (CIDR) that will be allowed to connect to ingress on ports 80 and 443
+* `extra_ingress_firewalls`: Additional ingress firewall rules. Key will be used as the name of the rule
+  * `source_ranges`: List of IP ranges (CIDR). Example: `["8.8.8.8"]`
+  * `protocol`: Protocol. Example `"tcp"`
+  * `ports`: List of ports, as string. Example `["53"]`
+  * `target_tags`: List of target tag (either the machine name or `control-plane` or `worker`). Example: `["control-plane", "worker-0"]`
 
 ### Optional
 
 * `prefix`: Prefix to use for all resources, required to be unique for all clusters in the same project *(Defaults to `default`)*
-* `master_sa_email`: Service account email to use for the master nodes *(Defaults to `""`, auto generate one)*
-* `master_sa_scopes`: Service account email to use for the master nodes *(Defaults to `["https://www.googleapis.com/auth/cloud-platform"]`)*
+* `master_sa_email`: Service account email to use for the control plane nodes *(Defaults to `""`, auto generate one)*
+* `master_sa_scopes`: Service account email to use for the control plane nodes *(Defaults to `["https://www.googleapis.com/auth/cloud-platform"]`)*
+* `master_preemptible`: Enable [preemptible](https://cloud.google.com/compute/docs/instances/preemptible)
+  for the control plane nodes *(Defaults to `false`)*
+* `master_additional_disk_type`: [Disk type](https://cloud.google.com/compute/docs/disks/#disk-types)
+  for extra disks added on the control plane nodes *(Defaults to `"pd-ssd"`)*
 * `worker_sa_email`: Service account email to use for the worker nodes *(Defaults to `""`, auto generate one)*
 * `worker_sa_scopes`: Service account email to use for the worker nodes *(Defaults to `["https://www.googleapis.com/auth/cloud-platform"]`)*
+* `worker_preemptible`: Enable [preemptible](https://cloud.google.com/compute/docs/instances/preemptible)
+  for the worker nodes *(Defaults to `false`)*
+* `worker_additional_disk_type`: [Disk type](https://cloud.google.com/compute/docs/disks/#disk-types)
+  for extra disks added on the worker nodes *(Defaults to `"pd-ssd"`)*
 
 An example variables file can be found `tfvars.json`
 

contrib/terraform/gcp/main.tf

@@ -1,8 +1,16 @@
+terraform {
+  required_providers {
+    google = {
+      source  = "hashicorp/google"
+      version = "~> 4.0"
+    }
+  }
+}
+
 provider "google" {
   credentials = file(var.keyfile_location)
   region      = var.region
   project     = var.gcp_project_id
-  version     = "~> 3.48"
 }
 
 module "kubernetes" {
@@ -13,12 +21,19 @@ module "kubernetes" {
   machines    = var.machines
   ssh_pub_key = var.ssh_pub_key
 
-  master_sa_email  = var.master_sa_email
-  master_sa_scopes = var.master_sa_scopes
-  worker_sa_email  = var.worker_sa_email
-  worker_sa_scopes = var.worker_sa_scopes
+  master_sa_email    = var.master_sa_email
+  master_sa_scopes   = var.master_sa_scopes
+  master_preemptible = var.master_preemptible
+  master_additional_disk_type = var.master_additional_disk_type
+  worker_sa_email    = var.worker_sa_email
+  worker_sa_scopes   = var.worker_sa_scopes
+  worker_preemptible = var.worker_preemptible
+  worker_additional_disk_type = var.worker_additional_disk_type
 
   ssh_whitelist        = var.ssh_whitelist
   api_server_whitelist = var.api_server_whitelist
   nodeport_whitelist   = var.nodeport_whitelist
+  ingress_whitelist    = var.ingress_whitelist
+
+  extra_ingress_firewalls = var.extra_ingress_firewalls
 }

contrib/terraform/gcp/modules/kubernetes-cluster/main.tf

@@ -5,6 +5,8 @@
 
 resource "google_compute_network" "main" {
   name = "${var.prefix}-network"
+
+  auto_create_subnetworks = false
 }
 
 resource "google_compute_subnetwork" "main" {
@@ -20,6 +22,8 @@ resource "google_compute_firewall" "deny_all" {
 
   priority = 1000
 
+  source_ranges = ["0.0.0.0/0"]
+
   deny {
     protocol = "all"
   }
@@ -39,6 +43,8 @@ resource "google_compute_firewall" "allow_internal" {
 }
 
 resource "google_compute_firewall" "ssh" {
+  count = length(var.ssh_whitelist) > 0 ? 1 : 0
+
   name    = "${var.prefix}-ssh-firewall"
   network = google_compute_network.main.name
 
@@ -53,6 +59,8 @@ resource "google_compute_firewall" "ssh" {
 }
 
 resource "google_compute_firewall" "api_server" {
+  count = length(var.api_server_whitelist) > 0 ? 1 : 0
+
   name    = "${var.prefix}-api-server-firewall"
   network = google_compute_network.main.name
 
@@ -67,6 +75,8 @@ resource "google_compute_firewall" "api_server" {
 }
 
 resource "google_compute_firewall" "nodeport" {
+  count = length(var.nodeport_whitelist) > 0 ? 1 : 0
+
   name    = "${var.prefix}-nodeport-firewall"
   network = google_compute_network.main.name
 
@@ -81,11 +91,15 @@ resource "google_compute_firewall" "nodeport" {
 }
 
 resource "google_compute_firewall" "ingress_http" {
+  count = length(var.ingress_whitelist) > 0 ? 1 : 0
+
   name    = "${var.prefix}-http-ingress-firewall"
   network = google_compute_network.main.name
 
   priority = 100
 
+  source_ranges = var.ingress_whitelist
+
   allow {
     protocol = "tcp"
     ports    = ["80"]
@@ -93,11 +107,15 @@ resource "google_compute_firewall" "ingress_http" {
 }
 
 resource "google_compute_firewall" "ingress_https" {
+  count = length(var.ingress_whitelist) > 0 ? 1 : 0
+
   name    = "${var.prefix}-https-ingress-firewall"
   network = google_compute_network.main.name
 
   priority = 100
 
+  source_ranges = var.ingress_whitelist
+
   allow {
     protocol = "tcp"
     ports    = ["443"]
@@ -173,7 +191,7 @@ resource "google_compute_disk" "master" {
    }
 
   name = "${var.prefix}-${each.key}"
-  type = "pd-ssd"
+  type = var.master_additional_disk_type
   zone = each.value.machine.zone
   size = each.value.disk_size
 
@@ -201,7 +219,7 @@ resource "google_compute_instance" "master" {
   machine_type = each.value.size
   zone         = each.value.zone
 
-  tags = ["master"]
+  tags = ["control-plane", "master", each.key]
 
   boot_disk {
     initialize_params {
@@ -229,19 +247,28 @@ resource "google_compute_instance" "master" {
 
   # Since we use google_compute_attached_disk we need to ignore this
   lifecycle {
-    ignore_changes = ["attached_disk"]
+    ignore_changes = [attached_disk]
+  }
+
+  scheduling {
+    preemptible = var.master_preemptible
+    automatic_restart = !var.master_preemptible
   }
 }
 
 resource "google_compute_forwarding_rule" "master_lb" {
+  count = length(var.api_server_whitelist) > 0 ? 1 : 0
+
   name = "${var.prefix}-master-lb-forward-rule"
 
   port_range = "6443"
 
-  target = google_compute_target_pool.master_lb.id
+  target = google_compute_target_pool.master_lb[count.index].id
 }
 
 resource "google_compute_target_pool" "master_lb" {
+  count = length(var.api_server_whitelist) > 0 ? 1 : 0
+
   name      = "${var.prefix}-master-lb-pool"
   instances = local.master_target_list
 }
@@ -258,7 +285,7 @@ resource "google_compute_disk" "worker" {
    }
 
   name = "${var.prefix}-${each.key}"
-  type = "pd-ssd"
+  type = var.worker_additional_disk_type
   zone = each.value.machine.zone
   size = each.value.disk_size
 
@@ -298,7 +325,7 @@ resource "google_compute_instance" "worker" {
   machine_type = each.value.size
   zone         = each.value.zone
 
-  tags = ["worker"]
+  tags = ["worker", each.key]
 
   boot_disk {
     initialize_params {
@@ -326,35 +353,69 @@ resource "google_compute_instance" "worker" {
 
   # Since we use google_compute_attached_disk we need to ignore this
   lifecycle {
-    ignore_changes = ["attached_disk"]
+    ignore_changes = [attached_disk]
+  }
+
+  scheduling {
+    preemptible = var.worker_preemptible
+    automatic_restart = !var.worker_preemptible
   }
 }
 
 resource "google_compute_address" "worker_lb" {
+  count = length(var.ingress_whitelist) > 0 ? 1 : 0
+
   name         = "${var.prefix}-worker-lb-address"
   address_type = "EXTERNAL"
   region       = var.region
 }
 
 resource "google_compute_forwarding_rule" "worker_http_lb" {
+  count = length(var.ingress_whitelist) > 0 ? 1 : 0
+
   name = "${var.prefix}-worker-http-lb-forward-rule"
 
-  ip_address = google_compute_address.worker_lb.address
+  ip_address = google_compute_address.worker_lb[count.index].address
   port_range = "80"
 
-  target = google_compute_target_pool.worker_lb.id
+  target = google_compute_target_pool.worker_lb[count.index].id
 }
 
 resource "google_compute_forwarding_rule" "worker_https_lb" {
+  count = length(var.ingress_whitelist) > 0 ? 1 : 0
+
   name = "${var.prefix}-worker-https-lb-forward-rule"
 
-  ip_address = google_compute_address.worker_lb.address
+  ip_address = google_compute_address.worker_lb[count.index].address
   port_range = "443"
 
-  target = google_compute_target_pool.worker_lb.id
+  target = google_compute_target_pool.worker_lb[count.index].id
 }
 
 resource "google_compute_target_pool" "worker_lb" {
+  count = length(var.ingress_whitelist) > 0 ? 1 : 0
+
   name      = "${var.prefix}-worker-lb-pool"
   instances = local.worker_target_list
 }
+
+resource "google_compute_firewall" "extra_ingress_firewall" {
+  for_each = {
+    for name, firewall in var.extra_ingress_firewalls :
+    name => firewall
+  }
+
+  name    = "${var.prefix}-${each.key}-ingress"
+  network = google_compute_network.main.name
+
+  priority = 100
+
+  source_ranges = each.value.source_ranges
+
+  target_tags = each.value.target_tags
+
+  allow {
+    protocol = each.value.protocol
+    ports    = each.value.ports
+  }
+}

contrib/terraform/gcp/modules/kubernetes-cluster/output.tf

@@ -19,9 +19,9 @@ output "worker_ip_addresses" {
 }
 
 output "ingress_controller_lb_ip_address" {
-  value = google_compute_address.worker_lb.address
+  value = length(var.ingress_whitelist) > 0 ? google_compute_address.worker_lb.0.address : ""
 }
 
 output "control_plane_lb_ip_address" {
-  value = google_compute_forwarding_rule.master_lb.ip_address
+  value = length(var.api_server_whitelist) > 0 ? google_compute_forwarding_rule.master_lb.0.ip_address : ""
 }

contrib/terraform/gcp/modules/kubernetes-cluster/variables.tf

@@ -14,7 +14,7 @@ variable "machines" {
     }))
     boot_disk = object({
       image_name = string
-      size = number
+      size       = number
     })
   }))
 }
@@ -27,6 +27,14 @@ variable "master_sa_scopes" {
   type = list(string)
 }
 
+variable "master_preemptible" {
+  type = bool
+}
+
+variable "master_additional_disk_type" {
+  type = string
+}
+
 variable "worker_sa_email" {
   type = string
 }
@@ -35,6 +43,14 @@ variable "worker_sa_scopes" {
   type = list(string)
 }
 
+variable "worker_preemptible" {
+  type = bool
+}
+
+variable "worker_additional_disk_type" {
+  type = string
+}
+
 variable "ssh_pub_key" {}
 
 variable "ssh_whitelist" {
@@ -49,6 +65,22 @@ variable "nodeport_whitelist" {
   type = list(string)
 }
 
+variable "ingress_whitelist" {
+  type = list(string)
+  default = ["0.0.0.0/0"]
+}
+
 variable "private_network_cidr" {
   default = "10.0.10.0/24"
 }
+
+variable "extra_ingress_firewalls" {
+  type = map(object({
+    source_ranges = set(string)
+    protocol      = string
+    ports         = list(string)
+    target_tags   = set(string)
+  }))
+
+  default = {}
+}

contrib/terraform/gcp/tfvars.json

@@ -16,6 +16,9 @@
   "nodeport_whitelist": [
     "1.2.3.4/32"
   ],
+  "ingress_whitelist": [
+    "0.0.0.0/0"
+  ],
 
   "machines": {
     "master-0": {
@@ -24,7 +27,7 @@
       "zone": "us-central1-a",
       "additional_disks": {},
       "boot_disk": {
-        "image_name": "ubuntu-os-cloud/ubuntu-1804-bionic-v20201116",
+        "image_name": "ubuntu-os-cloud/ubuntu-2004-focal-v20220118",
         "size": 50
       }
     },
@@ -38,7 +41,7 @@
         }
       },
       "boot_disk": {
-        "image_name": "ubuntu-os-cloud/ubuntu-1804-bionic-v20201116",
+        "image_name": "ubuntu-os-cloud/ubuntu-2004-focal-v20220118",
         "size": 50
       }
     },
@@ -52,7 +55,7 @@
         }
       },
       "boot_disk": {
-        "image_name": "ubuntu-os-cloud/ubuntu-1804-bionic-v20201116",
+        "image_name": "ubuntu-os-cloud/ubuntu-2004-focal-v20220118",
         "size": 50
       }
     }

contrib/terraform/gcp/variables.tf

@@ -44,6 +44,16 @@ variable "master_sa_scopes" {
   default = ["https://www.googleapis.com/auth/cloud-platform"]
 }
 
+variable "master_preemptible" {
+  type    = bool
+  default = false
+}
+
+variable "master_additional_disk_type" {
+  type = string
+  default = "pd-ssd"
+}
+
 variable "worker_sa_email" {
   type    = string
   default = ""
@@ -54,6 +64,16 @@ variable "worker_sa_scopes" {
   default = ["https://www.googleapis.com/auth/cloud-platform"]
 }
 
+variable "worker_preemptible" {
+  type    = bool
+  default = false
+}
+
+variable "worker_additional_disk_type" {
+  type = string
+  default = "pd-ssd"
+}
+
 variable ssh_pub_key {
   description = "Path to public SSH key file which is injected into the VMs."
   type        = string
@@ -70,3 +90,19 @@ variable api_server_whitelist {
 variable nodeport_whitelist {
   type = list(string)
 }
+
+variable "ingress_whitelist" {
+  type = list(string)
+  default = ["0.0.0.0/0"]
+}
+
+variable "extra_ingress_firewalls" {
+  type = map(object({
+    source_ranges = set(string)
+    protocol      = string
+    ports         = list(string)
+    target_tags   = set(string)
+  }))
+
+  default = {}
+}

contrib/terraform/hetzner/README.md

@@ -56,11 +56,24 @@ cd inventory/$CLUSTER
 
 Edit `default.tfvars` to match your requirement.
 
+Flatcar Container Linux instead of the basic Hetzner Images.
+
+```bash
+cd ../../contrib/terraform/hetzner
+```
+
+Edit `main.tf` and reactivate the module `source = "./modules/kubernetes-cluster-flatcar"`and
+comment out the `#source = "./modules/kubernetes-cluster"`.
+
+activate `ssh_private_key_path = var.ssh_private_key_path`. The VM boots into
+Rescue-Mode with the selected image of the `var.machines` but installs Flatcar instead.
+
 Run Terraform to create the infrastructure.
 
 ```bash
-terraform init ../../contrib/terraform/hetzner
-terraform apply --var-file default.tfvars ../../contrib/terraform/hetzner/
+cd ./kubespray
+terraform -chdir=./contrib/terraform/hetzner/ init
+terraform -chdir=./contrib/terraform/hetzner/ apply --var-file=../../../inventory/$CLUSTER/default.tfvars
 ```
 
 You should now have a inventory file named `inventory.ini` that you can use with kubespray.
@@ -97,6 +110,7 @@ terraform destroy --var-file default.tfvars ../../contrib/terraform/hetzner
 * `prefix`: Prefix to add to all resources, if set to "" don't set any prefix
 * `ssh_public_keys`: List of public SSH keys to install on all machines
 * `zone`: The zone where to run the cluster
+* `network_zone`: the network zone where the cluster is running
 * `machines`: Machines to provision. Key of this object will be used as the name of the machine
   * `node_type`: The role of this node *(master|worker)*
   * `size`: Size of the VM

contrib/terraform/hetzner/default.tfvars

@@ -1,6 +1,6 @@
-prefix = "default"
-zone   = "hel1"
-
+prefix         = "default"
+zone           = "hel1"
+network_zone   = "eu-central"
 inventory_file = "inventory.ini"
 
 ssh_public_keys = [
@@ -9,21 +9,23 @@ ssh_public_keys = [
   "ssh-rsa I-did-not-read-the-docs 2",
 ]
 
+ssh_private_key_path = "~/.ssh/id_rsa"
+
 machines = {
   "master-0" : {
     "node_type" : "master",
     "size" : "cx21",
-    "image" : "ubuntu-20.04",
+    "image" : "ubuntu-22.04",
   },
   "worker-0" : {
     "node_type" : "worker",
     "size" : "cx21",
-    "image" : "ubuntu-20.04",
+    "image" : "ubuntu-22.04",
   },
   "worker-1" : {
     "node_type" : "worker",
     "size" : "cx21",
-    "image" : "ubuntu-20.04",
+    "image" : "ubuntu-22.04",
   }
 }
 

contrib/terraform/hetzner/main.tf

@@ -2,6 +2,7 @@ provider "hcloud" {}
 
 module "kubernetes" {
   source = "./modules/kubernetes-cluster"
+  # source = "./modules/kubernetes-cluster-flatcar"
 
   prefix = var.prefix
 
@@ -9,7 +10,11 @@ module "kubernetes" {
 
   machines = var.machines
 
+  #only for flatcar
+  #ssh_private_key_path = var.ssh_private_key_path
+
   ssh_public_keys = var.ssh_public_keys
+  network_zone    = var.network_zone
 
   ssh_whitelist        = var.ssh_whitelist
   api_server_whitelist = var.api_server_whitelist
@@ -21,31 +26,32 @@ module "kubernetes" {
 # Generate ansible inventory
 #
 
-data "template_file" "inventory" {
-  template = file("${path.module}/templates/inventory.tpl")
-
-  vars = {
-    connection_strings_master = join("\n", formatlist("%s ansible_user=ubuntu ansible_host=%s ip=%s etcd_member_name=etcd%d",
-      keys(module.kubernetes.master_ip_addresses),
-      values(module.kubernetes.master_ip_addresses).*.public_ip,
-      values(module.kubernetes.master_ip_addresses).*.private_ip,
-    range(1, length(module.kubernetes.master_ip_addresses) + 1)))
-    connection_strings_worker = join("\n", formatlist("%s ansible_user=ubuntu ansible_host=%s ip=%s",
-      keys(module.kubernetes.worker_ip_addresses),
-      values(module.kubernetes.worker_ip_addresses).*.public_ip,
-    values(module.kubernetes.worker_ip_addresses).*.private_ip))
-
-    list_master = join("\n", keys(module.kubernetes.master_ip_addresses))
-    list_worker = join("\n", keys(module.kubernetes.worker_ip_addresses))
-  }
+locals {
+  inventory = templatefile(
+    "${path.module}/templates/inventory.tpl",
+    {
+      connection_strings_master = join("\n", formatlist("%s ansible_user=ubuntu ansible_host=%s ip=%s etcd_member_name=etcd%d",
+        keys(module.kubernetes.master_ip_addresses),
+        values(module.kubernetes.master_ip_addresses).*.public_ip,
+        values(module.kubernetes.master_ip_addresses).*.private_ip,
+      range(1, length(module.kubernetes.master_ip_addresses) + 1)))
+      connection_strings_worker = join("\n", formatlist("%s ansible_user=ubuntu ansible_host=%s ip=%s",
+        keys(module.kubernetes.worker_ip_addresses),
+        values(module.kubernetes.worker_ip_addresses).*.public_ip,
+      values(module.kubernetes.worker_ip_addresses).*.private_ip))
+      list_master = join("\n", keys(module.kubernetes.master_ip_addresses))
+      list_worker = join("\n", keys(module.kubernetes.worker_ip_addresses))
+      network_id  = module.kubernetes.network_id
+    }
+  )
 }
 
 resource "null_resource" "inventories" {
   provisioner "local-exec" {
-    command = "echo '${data.template_file.inventory.rendered}' > ${var.inventory_file}"
+    command = "echo '${local.inventory}' > ${var.inventory_file}"
   }
 
   triggers = {
-    template = data.template_file.inventory.rendered
+    template = local.inventory
   }
 }

contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/main.tf

@@ -0,0 +1,144 @@
+resource "hcloud_network" "kubernetes" {
+  name     = "${var.prefix}-network"
+  ip_range = var.private_network_cidr
+}
+
+resource "hcloud_network_subnet" "kubernetes" {
+  type         = "cloud"
+  network_id   = hcloud_network.kubernetes.id
+  network_zone = var.network_zone
+  ip_range     = var.private_subnet_cidr
+}
+
+resource "hcloud_ssh_key" "first" {
+  name       = var.prefix
+  public_key = var.ssh_public_keys.0
+}
+
+resource "hcloud_server" "machine" {
+  for_each = {
+    for name, machine in var.machines :
+    name => machine
+  }
+
+  name     = "${var.prefix}-${each.key}"
+  ssh_keys = [hcloud_ssh_key.first.id]
+  # boot into rescue OS
+  rescue = "linux64"
+  # dummy value for the OS because Flatcar is not available
+  image       = each.value.image
+  server_type = each.value.size
+  location    = var.zone
+  connection {
+    host        = self.ipv4_address
+    timeout     = "5m"
+    private_key = file(var.ssh_private_key_path)
+  }
+  firewall_ids = each.value.node_type == "master" ? [hcloud_firewall.master.id] : [hcloud_firewall.worker.id]
+  provisioner "file" {
+    content     = data.ct_config.machine-ignitions[each.key].rendered
+    destination = "/root/ignition.json"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "set -ex",
+      "apt update",
+      "apt install -y gawk",
+      "curl -fsSLO --retry-delay 1 --retry 60 --retry-connrefused --retry-max-time 60 --connect-timeout 20 https://raw.githubusercontent.com/flatcar/init/flatcar-master/bin/flatcar-install",
+      "chmod +x flatcar-install",
+      "./flatcar-install -s -i /root/ignition.json -C stable",
+      "shutdown -r +1",
+    ]
+  }
+
+  # optional:
+  provisioner "remote-exec" {
+    connection {
+      host        = self.ipv4_address
+      private_key = file(var.ssh_private_key_path)
+      timeout     = "3m"
+      user        = var.user_flatcar
+    }
+
+    inline = [
+      "sudo hostnamectl set-hostname ${self.name}",
+    ]
+  }
+}
+
+resource "hcloud_server_network" "machine" {
+  for_each = {
+    for name, machine in var.machines :
+    name => hcloud_server.machine[name]
+  }
+  server_id = each.value.id
+  subnet_id = hcloud_network_subnet.kubernetes.id
+}
+
+data "ct_config" "machine-ignitions" {
+  for_each = {
+    for name, machine in var.machines :
+    name => machine
+  }
+
+  strict = false
+  content = templatefile(
+    "${path.module}/templates/machine.yaml.tmpl",
+    {
+      ssh_keys     = jsonencode(var.ssh_public_keys)
+      user_flatcar = var.user_flatcar
+      name         = each.key
+    }
+  )
+}
+
+resource "hcloud_firewall" "master" {
+  name = "${var.prefix}-master-firewall"
+
+  rule {
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "22"
+    source_ips = var.ssh_whitelist
+  }
+
+  rule {
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "6443"
+    source_ips = var.api_server_whitelist
+  }
+}
+
+resource "hcloud_firewall" "worker" {
+  name = "${var.prefix}-worker-firewall"
+
+  rule {
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "22"
+    source_ips = var.ssh_whitelist
+  }
+
+  rule {
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "80"
+    source_ips = var.ingress_whitelist
+  }
+
+  rule {
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "443"
+    source_ips = var.ingress_whitelist
+  }
+
+  rule {
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "30000-32767"
+    source_ips = var.nodeport_whitelist
+  }
+}

contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/outputs.tf

@@ -0,0 +1,29 @@
+output "master_ip_addresses" {
+  value = {
+    for name, machine in var.machines :
+      name => {
+        "private_ip" = hcloud_server_network.machine[name].ip
+        "public_ip"  = hcloud_server.machine[name].ipv4_address
+      }
+      if machine.node_type == "master"
+  }
+}
+
+output "worker_ip_addresses" {
+  value = {
+    for name, machine in var.machines :
+      name => {
+        "private_ip" = hcloud_server_network.machine[name].ip
+        "public_ip"  = hcloud_server.machine[name].ipv4_address
+      }
+      if machine.node_type == "worker"
+  }
+}
+
+output "cluster_private_network_cidr" {
+  value = var.private_subnet_cidr
+}
+
+output "network_id" {
+  value = hcloud_network.kubernetes.id
+}

contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/templates/machine.yaml.tmpl

@@ -0,0 +1,19 @@
+variant: flatcar
+version: 1.0.0
+
+passwd:
+  users:
+    - name: ${user_flatcar}
+      ssh_authorized_keys: ${ssh_keys}
+
+storage:
+  files:
+    - path: /home/core/works
+      filesystem: root
+      mode: 0755
+      contents:
+        inline: |
+          #!/bin/bash
+          set -euo pipefail
+          hostname="$(hostname)"
+          echo My name is ${name} and the hostname is $${hostname}

contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/variables.tf

@@ -0,0 +1,60 @@
+
+variable "zone" {
+  type    = string
+  default = "fsn1"
+}
+
+variable "prefix" {
+  default = "k8s"
+}
+
+variable "user_flatcar" {
+  type    = string
+  default = "core"
+}
+
+variable "machines" {
+  type = map(object({
+    node_type = string
+    size      = string
+    image     = string
+  }))
+}
+
+
+
+variable "ssh_public_keys" {
+  type = list(string)
+}
+
+variable "ssh_private_key_path" {
+  type    = string
+  default = "~/.ssh/id_rsa"
+}
+
+variable "ssh_whitelist" {
+  type = list(string)
+}
+
+variable "api_server_whitelist" {
+  type = list(string)
+}
+
+variable "nodeport_whitelist" {
+  type = list(string)
+}
+
+variable "ingress_whitelist" {
+  type = list(string)
+}
+
+variable "private_network_cidr" {
+  default = "10.0.0.0/16"
+}
+
+variable "private_subnet_cidr" {
+  default = "10.0.10.0/24"
+}
+variable "network_zone" {
+  default = "eu-central"
+}

contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/versions.tf

@@ -0,0 +1,14 @@
+terraform {
+  required_providers {
+    hcloud = {
+      source = "hetznercloud/hcloud"
+    }
+    ct = {
+      source  = "poseidon/ct"
+      version = "0.11.0"
+    }
+    null = {
+      source = "hashicorp/null"
+    }
+  }
+}

contrib/terraform/hetzner/modules/kubernetes-cluster/main.tf

@@ -6,7 +6,7 @@ resource "hcloud_network" "kubernetes" {
 resource "hcloud_network_subnet" "kubernetes" {
   type         = "cloud"
   network_id   = hcloud_network.kubernetes.id
-  network_zone = "eu-central"
+  network_zone = var.network_zone
   ip_range     = var.private_subnet_cidr
 }
 
@@ -75,17 +75,17 @@ resource "hcloud_firewall" "master" {
   name = "${var.prefix}-master-firewall"
 
   rule {
-   direction = "in"
-   protocol = "tcp"
-   port = "22"
-   source_ips = var.ssh_whitelist
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "22"
+    source_ips = var.ssh_whitelist
   }
 
   rule {
-   direction = "in"
-   protocol = "tcp"
-   port = "6443"
-   source_ips = var.api_server_whitelist
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "6443"
+    source_ips = var.api_server_whitelist
   }
 }
 
@@ -93,30 +93,30 @@ resource "hcloud_firewall" "worker" {
   name = "${var.prefix}-worker-firewall"
 
   rule {
-   direction = "in"
-   protocol = "tcp"
-   port = "22"
-   source_ips = var.ssh_whitelist
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "22"
+    source_ips = var.ssh_whitelist
   }
 
   rule {
-   direction = "in"
-   protocol = "tcp"
-   port = "80"
-   source_ips = var.ingress_whitelist
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "80"
+    source_ips = var.ingress_whitelist
   }
 
   rule {
-   direction = "in"
-   protocol = "tcp"
-   port = "443"
-   source_ips = var.ingress_whitelist
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "443"
+    source_ips = var.ingress_whitelist
   }
 
   rule {
-   direction = "in"
-   protocol = "tcp"
-   port = "30000-32767"
-   source_ips = var.nodeport_whitelist
+    direction  = "in"
+    protocol   = "tcp"
+    port       = "30000-32767"
+    source_ips = var.nodeport_whitelist
   }
 }

contrib/terraform/hetzner/modules/kubernetes-cluster/output.tf

@@ -21,3 +21,7 @@ output "worker_ip_addresses" {
 output "cluster_private_network_cidr" {
   value = var.private_subnet_cidr
 }
+
+output "network_id" {
+  value = hcloud_network.kubernetes.id
+}

contrib/terraform/hetzner/modules/kubernetes-cluster/templates/cloud-init.tmpl

@@ -14,4 +14,3 @@ ssh_authorized_keys:
 %{ for ssh_public_key in ssh_public_keys ~}
   - ${ssh_public_key}
 %{ endfor ~}
-

contrib/terraform/hetzner/modules/kubernetes-cluster/variables.tf

@@ -39,3 +39,6 @@ variable "private_network_cidr" {
 variable "private_subnet_cidr" {
   default = "10.0.10.0/24"
 }
+variable "network_zone" {
+  default = "eu-central"
+}

contrib/terraform/hetzner/modules/kubernetes-cluster/versions.tf

@@ -1,8 +1,8 @@
 terraform {
   required_providers {
     hcloud = {
-      source = "hetznercloud/hcloud"
-      version = "1.31.1"
+      source  = "hetznercloud/hcloud"
+      version = "1.38.2"
     }
   }
   required_version = ">= 0.14"

contrib/terraform/hetzner/sample-inventory/cluster.tfvars

@@ -0,0 +1,46 @@
+prefix         = "default"
+zone           = "hel1"
+network_zone   = "eu-central"
+inventory_file = "inventory.ini"
+
+ssh_public_keys = [
+  # Put your public SSH key here
+  "ssh-rsa I-did-not-read-the-docs",
+  "ssh-rsa I-did-not-read-the-docs 2",
+]
+
+ssh_private_key_path = "~/.ssh/id_rsa"
+
+machines = {
+  "master-0" : {
+    "node_type" : "master",
+    "size" : "cx21",
+    "image" : "ubuntu-22.04",
+  },
+  "worker-0" : {
+    "node_type" : "worker",
+    "size" : "cx21",
+    "image" : "ubuntu-22.04",
+  },
+  "worker-1" : {
+    "node_type" : "worker",
+    "size" : "cx21",
+    "image" : "ubuntu-22.04",
+  }
+}
+
+nodeport_whitelist = [
+  "0.0.0.0/0"
+]
+
+ingress_whitelist = [
+  "0.0.0.0/0"
+]
+
+ssh_whitelist = [
+  "0.0.0.0/0"
+]
+
+api_server_whitelist = [
+  "0.0.0.0/0"
+]

contrib/terraform/hetzner/sample-inventory/group_vars

@@ -0,0 +1 @@
+../../../../inventory/sample/group_vars

contrib/terraform/hetzner/templates/inventory.tpl

@@ -2,15 +2,18 @@
 ${connection_strings_master}
 ${connection_strings_worker}
 
-[kube-master]
+[kube_control_plane]
 ${list_master}
 
 [etcd]
 ${list_master}
 
-[kube-node]
+[kube_node]
 ${list_worker}
 
-[k8s-cluster:children]
+[k8s_cluster:children]
 kube-master
 kube-node
+
+[k8s_cluster:vars]
+network_id=${network_id}

contrib/terraform/hetzner/variables.tf

@@ -1,6 +1,10 @@
 variable "zone" {
   description = "The zone where to run the cluster"
 }
+variable "network_zone" {
+  description = "The network zone where the cluster is running"
+  default     = "eu-central"
+}
 
 variable "prefix" {
   description = "Prefix for resource names"
@@ -21,6 +25,12 @@ variable "ssh_public_keys" {
   type        = list(string)
 }
 
+variable "ssh_private_key_path" {
+  description = "Private SSH key which connect to the VMs."
+  type        = string
+  default     = "~/.ssh/id_rsa"
+}
+
 variable "ssh_whitelist" {
   description = "List of IP ranges (CIDR) to whitelist for ssh"
   type        = list(string)