Attempt GHA communication between container using "docker host network"

https://docs.github.com/en/actions/using-containerized-services/about-service-containers
I re-revert the workflow to use the new custom action. But I'm not sure
it will works because I don't know how the container for ansible-test
is started and if it will have access to the services containers.

.github/workflows/ansible-test-plugins.yml

@@ -85,48 +85,47 @@ jobs:
           - python: 3.9
             ansible: stable-2.12
 
-    # runs all of the steps inside the specified container rather than on the VM host.  
-    # Because of this the network configuration changes from host based network to a container network.
     services:
-      mariadb105:
+      db_primary:
         image: mariadb:10.5
         env:
           MARIADB_ROOT_PASSWORD: msandbox
         ports:
           - 3307:3306
-        # needed because the mariadb container does not provide a healthcheck
-        options: --health-cmd mysqladmin ping -P 3306 -pmsandbox | grep alive || exit 1
+        # We write our own health-cmd because the mariadb container does not
+        # provide a healthcheck
+        options: &healthcheck >
+          --health-cmd mysqladmin ping -P 3306 -pmsandbox
+          | grep alive
+          || exit 1
+      db_replica1:
+        image: mariadb:10.5
+        env:
+          MARIADB_ROOT_PASSWORD: msandbox
+        ports:
+          - 3308:3306
+        options: *healthcheck
+      db_replica2:
+        image: mariadb:10.5
+        env:
+          MARIADB_ROOT_PASSWORD: msandbox
+        ports:
+          - 3309:3306
+        options: *healthcheck
 
     steps:
-      - name: Check out code
-        uses: actions/checkout@v2
+      - name: >-
+          Perform integration testing against
+          Ansible version ${{ matrix.ansible }}
+          under Python ${{ matrix.python }}
+        uses: ansible-community/ansible-test-gh-action@release/v1
         with:
-          path: ansible_collections/community/mysql
-
-      - name: Set up Python
-        uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python }}
-
-      - name: Install ansible-base (${{ matrix.ansible }})
-        run: pip install https://github.com/ansible/ansible/archive/${{ matrix.ansible }}.tar.gz --disable-pip-version-check
-
-      - name: Set Connector version (${{ matrix.connector }})
-        run: "sed -i 's/^python_packages:.*/python_packages: [${{ matrix.connector }}]/' ${{ env.connector_version_file }}"
-
-      # TODO, add a loop that wait on mariadb container healthcheck here
-
-      - name: Run integration tests
-        run: ansible-test integration --venv -v --color --retry-on-error --continue-on-error --python ${{ matrix.python }} --diff --coverage
-        working-directory: ./ansible_collections/community/mysql
-
-      - name: Generate coverage report.
-        run: ansible-test coverage xml -v --requirements --group-by command --group-by version
-        working-directory: ./ansible_collections/community/mysql
-
-      - uses: codecov/codecov-action@v1
-        with:
-          fail_ci_if_error: false
+          ansible-core-version: ${{ matrix.ansible }}
+          pre-test-cmd: >-
+            >&2 echo Setting Connector version to ${{ matrix.connector }}...;
+            sed -i 's/^python_packages:.*/python_packages: [${{ matrix.connector }}]/' ${{ env.connector_version_file }}
+          target-python-version: ${{ matrix.python }}
+          testing-type: integration
 
   units:
     runs-on: ubuntu-20.04