Allow to install the latest version

README.md

@@ -24,13 +24,13 @@ There was an issue:
 
     If I configure a telegraf_plugins_extra, run ansible, delete the plugin and run ansible again, the plugin stays on the machine.
 
-
-
 ## Role Variables
 
 The following parameters can be set for the Telegraf agent:
 
-* `telegraf_agent_version`: The version of Telegraf to install. Default: `1.0.0`
+* `telegraf_agent_version`: The version of Telegraf to install. Default: `1.9.0`
+* `telegraf_agent_package`: The name of the Telegraf package. Default: `telegraf`
+* `telegraf_agent_package_state`: If the package should be `present` or `latest`. When set to `latest`, `telegraf_agent_version` will be ignored. Default: `present`
 * `telegraf_agent_interval`: The interval configured for sending data to the server. Default: `10`
 * `telegraf_agent_debug`: Run Telegraf in debug mode. Default: `False`
 * `telegraf_agent_round_interval`: Rounds collection interval to 'interval' Default: True

defaults/main.yml

@@ -3,6 +3,8 @@
 
 telegraf_agent_version: 1.9.0
 telegraf_agent_version_patch: 1
+telegraf_agent_package: telegraf
+telegraf_agent_package_state: latest
 telegraf_agent_hostname: "{{ ansible_fqdn }}"
 telegraf_agent_interval: 10
 telegraf_agent_debug: False

tasks/Debian.yml

@@ -1,5 +1,11 @@
 ---
 
+- name: "Set name if state == latest"
+  set_fact:
+    telegraf_agent_package: telegraf={{ telegraf_agent_version }}-{{ telegraf_agent_version_patch }}
+  when:
+    - telegraf_agent_package_state != "latest"
+
 - name: Ensure the system can use the HTTPS transport for APT.
   stat:
     path: /usr/lib/apt/methods/https
@@ -41,8 +47,8 @@
 
 - name: "Install telegraf package | Debian"
   apt:
-    name: telegraf={{ telegraf_agent_version }}-{{ telegraf_agent_version_patch }}
-    state: present
+    name: "{{ telegraf_agent_package }}"
+    state: "{{ telegraf_agent_package_state }}"
     force: True
   notify: "Restart Telegraf"
   become: yes

tasks/RedHat.yml

@@ -1,6 +1,12 @@
 ---
 # description: RedHat specific installation
 
+- name: "Set name if state == latest"
+  set_fact:
+    telegraf_agent_package: telegraf-{{ telegraf_agent_version }}
+  when:
+    - telegraf_agent_package_state != "latest"
+
 - name: "Add yum repository | RedHat"
   yum_repository:
     name: influxdb
@@ -11,6 +17,6 @@
 
 - name: "Install telegraf package | RedHat"
   yum:
-    name: telegraf-{{ telegraf_agent_version }}
-    state: present
+    name: "{{ telegraf_agent_package }}"
+    state: "{{ telegraf_agent_package_state }}"
   notify: "Restart Telegraf"