build_container.yaml

# Ansible playbook to create the pulp service containers image
---
- name: "Build CI Container Image"
  hosts: "localhost"
  gather_facts: false
  vars_files:
    - "vars/main.yaml"
  tasks:
    - name: "Generate Containerfile from template"
      ansible.builtin.template:
        src: "Containerfile.j2"
        dest: "Containerfile"

    - name: "Build pulp image"
      # We build from the ../.. (parent dir of pulpcore git repo) Docker build
      # "context" so that repos like pulp-smash are accessible to Docker
      # build. So that PR branches can be used via relative paths.
      #
      # We default to using the docker build / podman buildah cache, for
      # 1-off-builds and CI purposes (which has no cache across CI runs.)
      # Run build.yaml with -e cache=false if your builds are using outdated
      # layers.
      ansible.builtin.command:
        argv:
          - "docker"
          - "build"
          - "--network"
          - "host"
          - "--no-cache={{ not cache | default(true) | bool }}"
          - "-t"
          - "{{ image.name }}:{{ image.tag }}"
          - "-f"
          - "{{ playbook_dir }}/Containerfile"
          - "../../.."

    - name: "Clean image cache"
      community.docker.docker_prune:
        images: true
...