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