[DPE-2995] Receive mongos user

.github/workflows/ci.yaml

@@ -44,8 +44,114 @@ jobs:
           credentials: "${{ secrets.CHARMHUB_TOKEN }}" # FIXME: current token will expire in 2023-07-04
           github-token: "${{ secrets.GITHUB_TOKEN }}"
 
+  unit-test:
+    name: Unit test charm
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install tox & poetry
+        run: |
+          pipx install tox
+          pipx install poetry
+      - name: Run tests
+        run: tox run -e unit
+      - name: Upload Coverage to Codecov
+        uses: codecov/codecov-action@v3
+
   build:
     name: Build charms
-    uses: canonical/data-platform-workflows/.github/workflows/build_charms_with_cache.yaml@v6
+    uses: canonical/data-platform-workflows/.github/workflows/build_charms_with_cache.yaml@v7
     permissions:
       actions: write # Needed to manage GitHub Actions cache
+
+  gh-hosted-collect-integration-tests:
+    name: (GH hosted) Collect integration test groups
+    needs:
+      - lint
+      - unit-test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install tox & poetry
+        run: |
+          pipx install tox
+          pipx install poetry
+      - name: Select test stability level
+        id: select-test-stability
+        run: |
+          if [[ "${{ github.event_name }}" == "schedule" ]]
+          then
+            echo Running unstable and stable tests
+            echo "mark_expression=" >> "$GITHUB_OUTPUT"
+          else
+            echo Skipping unstable tests
+            echo "mark_expression=not unstable" >> "$GITHUB_OUTPUT"
+          fi
+      - name: Collect test groups
+        id: collect-groups
+        run: tox run -e integration -- tests/integration -m '${{ steps.select-test-stability.outputs.mark_expression }}' --collect-groups
+    outputs:
+      groups: ${{ steps.collect-groups.outputs.groups }}
+
+  gh-hosted-integration-test:
+    strategy:
+      fail-fast: false
+      matrix:
+        groups: ${{ fromJSON(needs.gh-hosted-collect-integration-tests.outputs.groups) }}
+        ubuntu-versions:
+          # Update whenever charmcraft.yaml is changed
+          - series: focal
+            bases-index: 0
+          - series: jammy
+            bases-index: 1
+        juju-snap-channel: ["3.1/stable"]
+        include:
+          - juju-snap-channel: "3.1/stable"
+            agent-version: "3.1.6"
+            libjuju-version: "3.2.2"
+    name: ${{ matrix.juju-snap-channel }} - (GH hosted) ${{ matrix.groups.job_name }} | ${{ matrix.ubuntu-versions.series }}
+    needs:
+      - lint
+      - unit-test
+      - build
+      - gh-hosted-collect-integration-tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 120
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install tox & poetry
+        run: |
+          pipx install tox
+          pipx install poetry
+      - name: Setup operator environment
+        uses: charmed-kubernetes/actions-operator@main
+        with:
+          provider: lxd
+          bootstrap-options: "--agent-version ${{ matrix.agent-version }}"
+          juju-channel: ${{ matrix.juju-snap-channel }}
+      - name: Update python-libjuju version
+        if: ${{ matrix.libjuju-version == '2.9.44.1' }}
+        run: poetry add --lock --group integration juju@'${{ matrix.libjuju-version }}'
+      - name: Download packed charm(s)
+        uses: actions/download-artifact@v3
+        with:
+          name: ${{ needs.build.outputs.artifact-name }}
+      - name: Select test stability level
+        id: select-test-stability
+        run: |
+          if [[ "${{ github.event_name }}" == "schedule" ]]
+          then
+            echo Running unstable and stable tests
+            echo "mark_expression=" >> "$GITHUB_OUTPUT"
+          else
+            echo Skipping unstable tests
+            echo "mark_expression=not unstable" >> "$GITHUB_OUTPUT"
+          fi
+      - name: Run integration tests
+        run: tox run -e integration -- "${{ matrix.groups.path_to_test_file }}" --group="${{ matrix.groups.group_number }}" -m '${{ steps.select-test-stability.outputs.mark_expression }}' --mysql-router-charm-series=${{ matrix.ubuntu-versions.series }} --mysql-router-charm-bases-index=${{ matrix.ubuntu-versions.bases-index }}
+        env:
+          LIBJUJU_VERSION_SPECIFIER: ${{ matrix.libjuju-version }}