dff78f616e
According to http://kubernetes.io/docs/user-guide/images/ : By default, the kubelet will try to pull each image from the specified registry. However, if the imagePullPolicy property of the container is set to IfNotPresent or Never, then a local\ image is used (preferentially or exclusively, respectively). Use IfNotPresent value to allow images prepared by the download role dependencies to be effectively used by kubelet without pull errors resulting apps to stay blocked in PullBackOff/Error state even when there are images on the localhost exist. Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
##Deploy a production ready kubernetes cluster
If you have questions, you can invite yourself to chat with us on Slack! 
- Can be deployed on AWS, GCE, OpenStack or Baremetal
- High available cluster
- Composable (Choice of the network plugin for instance)
- Support most popular Linux distributions
- Continuous integration tests
To deploy the cluster you can use :
kargo-cli (deprecated, a newer go version soon)
Ansible usual commands
vagrant by simply running vagrant up (for tests purposes)
- Requirements
- Getting started
- Vagrant install
- CoreOS bootstrap
- Ansible variables
- Cloud providers
- OpenStack
- AWS
- Network plugins
- Roadmap
Supported Linux distributions
- CoreOS
- Debian Wheezy, Jessie
- Ubuntu 14.10, 15.04, 15.10, 16.04
- Fedora 23
- CentOS/RHEL 7
Versions
kubernetes v1.4.6
etcd v3.0.6
flanneld v0.6.2
calicoctl v0.22.0
weave v1.6.1
docker v1.10.3
Requirements
- The target servers must have access to the Internet in order to pull docker images.
- 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
- Copy your ssh keys to all the servers part of your inventory.
- Ansible v2.x and python-netaddr
Network plugins
You can choose between 3 network plugins. (default: flannel with vxlan backend)
-
flannel: gre/vxlan (layer 2) networking.
-
calico: bgp (layer 3) networking.
-
weave: Weave is a lightweight container overlay network that doesn't require an external K/V database cluster.
(Please refer toweavetroubleshooting documentation)
The choice is defined with the variable kube_network_plugin
CI Tests
Google Compute Engine
| Calico | Flannel | Weave |
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Ubuntu Xenial ||
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CentOS 7 |
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CoreOS (stable) |
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CI tests sponsored by Google (GCE), and teuto.net for OpenStack.