check_for_dangling_images

Check-for-dangling-images
=========================

Add Ansible role to check for dangling images

Requirements
------------

This role will be executed pre Update.


Role Variables
--------------

* `check_for_dangling_images_debug`: <'false'> -- debugging mode.

Dependencies
------------

No Dependencies

Example Playbook
----------------

    - hosts: servers
      roles:
      - { role: check_for_dangling_images, check_for_dangling_images_debug: true }

License
-------

Apache

Author Information
------------------

Red Hat TripleO DFG:Upgrades

Role Documentation

Welcome to the “check_for_dangling_images” role documentation.

Role Defaults

This section highlights all of the defaults and variables set within the “check_for_dangling_images” role.

check_for_dangling_images_debug: false

Molecule Scenarios

Molecule is being used to test the “check_for_dangling_images” role. The following section highlights the drivers in service and provides an example playbook showing how the role is leveraged.

Scenario: default

Example default configuration

driver:
  name: podman
log: true
platforms:
- dockerfile: ../../../../.config/molecule/Dockerfile
  environment:
    http_proxy: '{{ lookup(''env'', ''http_proxy'') }}'
    https_proxy: '{{ lookup(''env'', ''https_proxy'') }}'
  hostname: centos
  image: centos/centos:stream8
  name: centos
  pkg_extras: python*-setuptools python*-pyyaml
  privileged: true
  registry:
    url: quay.io
  ulimits:
  - host
  volumes:
  - /etc/ci/mirror_info.sh:/etc/ci/mirror_info.sh:ro
provisioner:
  env:
    ANSIBLE_LIBRARY: ${ANSIBLE_LIBRARY:-/usr/share/ansible/plugins/modules}
    ANSIBLE_ROLES_PATH: ${ANSIBLE_ROLES_PATH}:${HOME}/zuul-jobs/roles
    ANSIBLE_STDOUT_CALLBACK: yaml
  inventory:
    hosts:
      all:
        hosts:
          centos:
            ansible_python_interpreter: /usr/bin/python3
  log: true
  name: ansible
  options:
    vvv: true
scenario:
  test_sequence:
  - destroy
  - create
  - prepare
  - converge
  - verify
  - destroy
verifier:
  name: ansible

Molecule Inventory

hosts:
  all:
    hosts:
      centos:
        ansible_python_interpreter: /usr/bin/python3

Example default playbook

- gather_facts: false
  hosts: all
  name: Converge
  tasks:
  - copy:
      content: '#!/bin/bash

        '
      dest: /usr/bin/podman
      mode: 493
    name: Populate successful podman CLI
  - include_role:
      name: check_for_dangling_images
    name: Test good values
  - copy:
      content: '#!/bin/bash

        echo 4199acc83c6a43243392aecbff22764dbb501aef81a26d7c4c8c69064f84ef47

        '
      dest: /usr/bin/podman
      mode: 493
    name: Populate failing podman CLI
  - block:
    - include_role:
        name: check_for_dangling_images
      name: Catch when images exist
    name: Test failing
    rescue:
    - meta: clear_host_errors
      name: Clear host errors
    - debug:
        msg: The validation works! End the playbook run
    - meta: end_play
      name: End play
  - fail:
      msg: 'Found dangling podman images

        '
    name: Fail the test