Add podman container roles

roles/ikke_t.container_image_cleanup/README.md

@@ -0,0 +1,63 @@
+Container Image Cleanup
+=======================
+
+Periodicly cleans up all unused container images from host. Role sets up cron
+job based on whether podman or docker is installed.
+
+Requirements
+------------
+
+Role checks if either Podman or Docker is installed on host before installing cronjob.
+
+Role Variables
+--------------
+
+There are variables in defaults/main.yml for timing of cronjob,
+as well as path to binaries for docker and podman to check for.
+
+
+* **podman_prune_cronjob_special_time**  
+  see special_time options https://docs.ansible.com/ansible/latest/modules/cron_module.html
+* **docker_prune_cronjob_special_time**  
+  see special_time options https://docs.ansible.com/ansible/latest/modules/cron_module.html
+* **podman_prune_opts**  
+  podman system prune options, e.g. "--all --force"
+* **docker_prune_opts:**  
+  docker image prune options, e.g. "--all --force"
+* **podman_path:**  
+  where to look for podman executable, e.g: /usr/bin/podman
+* **docker_path:**  
+  where to look for docker executable, e.g: /usr/bin/docker
+
+
+Dependencies
+------------
+
+No dependencies.
+
+Example Playbook
+----------------
+
+```
+- name: periodicly clean up unused containers
+  hosts: all
+  roles:
+    - role: container_image_cleanup
+      vars:
+        podman_prune_cronjob_special_time: daily
+        docker_prune_cronjob_special_time: weekly
+        podman_prune_opts: "--all --force"
+        docker_prune_opts: "--all --force"
+        podman_path: /usr/bin/podman
+        docker_path: /usr/bin/docker
+```
+
+License
+-------
+
+GPLv3
+
+Author Information
+------------------
+
+Ilkka Tengvall, ilkka.tengvall@iki.fi

roles/ikke_t.container_image_cleanup/defaults/main.yml

@@ -0,0 +1,10 @@
+---
+
+podman_prune_opts: "--all --force"
+docker_prune_opts: "--all --force"
+
+podman_path: /usr/bin/podman
+docker_path: /usr/bin/docker
+
+podman_prune_cronjob_special_time: daily
+docker_prune_cronjob_special_time: daily

roles/ikke_t.container_image_cleanup/handlers/main.yml

@@ -0,0 +1,2 @@
+---
+# handlers file for container-cleanup

roles/ikke_t.container_image_cleanup/meta/.galaxy_install_info

@@ -0,0 +1,2 @@
+install_date: Sun Dec 29 00:38:40 2019
+version: master

roles/ikke_t.container_image_cleanup/meta/main.yml

@@ -0,0 +1,19 @@
+galaxy_info:
+  description: Periodicly cleans up all unused container images from host. Role sets up cron job based on whether podman or docker is installed.
+  author: Ilkka Tengvall
+  company: ITSE
+  license: GPLv3
+
+  min_ansible_version: 2.4
+
+  platforms:
+  - name: Fedora
+    versions:
+    - all
+
+  galaxy_tags:
+  - containers
+  - podman
+  - docker
+
+dependencies: []

roles/ikke_t.container_image_cleanup/tasks/main.yml

@@ -0,0 +1,35 @@
+---
+
+- name: check if podman is installed
+  stat:
+    path: "{{ podman_path }}"
+  register: podman_binary
+
+- name: mark podman being present
+  set_fact:
+    podman_present: present
+  when: podman_binary.stat.exists
+
+- name: check if docker is installed
+  stat:
+    path: "{{ docker_path }}"
+  register: docker_binary
+
+- name: mark docker being present
+  set_fact:
+    docker_present: present
+  when: docker_binary.stat.exists
+
+- name: ensure periodic task to cleanup unused docker containers
+  cron:
+    name: "prune all docker images"
+    special_time: "{{ docker_prune_cronjob_special_time }}"
+    job: "{{ docker_path }} image prune {{ docker_prune_opts }} > /dev/null"
+    state: "{{ docker_present|default('absent') }}"
+
+- name: ensure periodic task to cleanup unused podman containers
+  cron:
+    name: "prune all podman images"
+    special_time: "{{ podman_prune_cronjob_special_time }}"
+    job: "{{ podman_path }} system prune {{ podman_prune_opts }} > /dev/null"
+    state: "{{ podman_present|default('absent') }}"

roles/ikke_t.container_image_cleanup/tests/inventory

@@ -0,0 +1,2 @@
+localhost
+

roles/ikke_t.container_image_cleanup/tests/test.yml

@@ -0,0 +1,5 @@
+---
+- hosts: localhost
+  remote_user: root
+  roles:
+    - container-cleanup

roles/ikke_t.container_image_cleanup/vars/main.yml

@@ -0,0 +1,2 @@
+---
+# vars file for container-cleanup