add molecule tests

.github/workflows/docker.yml

@@ -0,0 +1,60 @@
+name: "ericsysmin.docker.docker"
+on:
+  push:
+    paths:
+      - 'roles/docker/**'
+      - 'molecule/docker/**'
+      - '.github/workflows/docker.yml'
+  pull_request:
+    paths:
+      - 'roles/docker/**'
+      - 'molecule/docker/**'
+      - '.github/workflows/docker.yml'
+jobs:
+  molecule:
+    runs-on: ubuntu-latest
+    env:
+      PY_COLORS: 1
+      ANSIBLE_FORCE_COLOR: 1
+    strategy:
+      fail-fast: true
+      matrix:
+        molecule_distro:
+          - { "distro":"centos-7", "command":"/usr/sbin/init" }
+          - { "distro":"centos-8", "command":"/usr/sbin/init" }
+          - { "distro":"fedora-32", "command":"/usr/sbin/init" }
+          - { "distro":"fedora-31", "command":"/usr/sbin/init" }
+          - { "distro":"fedora-30", "command":"/usr/lib/systemd/systemd" }
+          - { "distro":"ubuntu-16.04", "command":"/sbin/init" }
+          - { "distro":"ubuntu-18.04", "command":"/lib/systemd/systemd" }
+          - { "distro":"ubuntu-20.04", "command":"/lib/systemd/systemd" }
+          - { "distro":"debian-9", "command":"/lib/systemd/systemd" }
+          - { "distro":"debian-10", "command":"/lib/systemd/systemd" }
+        collection_role:
+          - docker
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v1
+        with:
+          path: ansible_collections/ericsysmin/docker
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.12
+
+      - name: Install dependencies
+        run: |
+          sudo apt install apt-transport-https ca-certificates curl software-properties-common
+          curl -fsSL https://get.docker.com -o get-docker.sh
+          sudo sh get-docker.sh
+          python -m pip install --upgrade pip
+          pip install ansible molecule yamllint ansible-lint molecule-plugins[docker]
+  
+      - name: Run role tests
+        run: >-
+          molecule --version &&
+          ansible --version &&
+          MOLECULE_COMMAND=${{ matrix.molecule_distro.command }}
+          MOLECULE_DISTRO=${{ matrix.molecule_distro.distro }}
+          molecule --debug test -s ${{ matrix.collection_role }}

molecule/docker/Dockerfile.j2

@@ -0,0 +1 @@
+{{ lookup('url', 'https://raw.githubusercontent.com/ericsysmin/ansible-molecule-dockerfiles/main/' ~ item.image ~ '/Dockerfile', split_lines=False) }}

molecule/docker/converge.yml

@@ -0,0 +1,26 @@
+---
+- name: Converge
+  hosts: all
+  pre_tasks:
+    - name: Wait for systemd to complete initialization.  # noqa command-instead-of-module
+      ansible.builtin.command: systemctl is-system-running
+      register: systemctl_status
+      until: >-
+        "running" in systemctl_status.stdout or "degraded" in
+        systemctl_status.stdout
+      retries: 30
+      delay: 5
+      when:
+        - ansible_service_mgr == "systemd"
+        - ansible_distribution == "Fedora"
+      changed_when: false
+    - name: Update package cache
+      ansible.builtin.package:
+        update_cache: true
+      changed_when: false
+      register: task_result
+      until: task_result is success
+      retries: 10
+      delay: 2
+  roles:
+    - role: ericsysmin.docker.docker

molecule/default/molecule.yml → molecule/docker/molecule.yml

@@ -9,12 +9,11 @@ lint: |
   ansible-lint
 platforms:
   - name: instance
-    image: ${MOLECULE_DISTRO:-ubuntu:xenial}
+    image: ${MOLECULE_DISTRO:-ubuntu-xenial}
     privileged: true
-    service_manager: ${MOLECULE_SERVICE_MANAGER:-systemd}
+    command: ${MOLECULE_COMMAND:-""}
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    command: ${MOLECULE_COMMAND:-""}
 provisioner:
   name: ansible
   playbooks: