workflows: add daily e2e tests for libvirt

Will run the libvirt e2e tests everyday at 04:15 UTC

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>

.github/workflows/daily-e2e-tests-libvirt.yaml

@@ -0,0 +1,144 @@
+# (C) Copyright Confidential Containers Contributors 2023.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Daily run the e2e tests for libvirt.
+---
+name: daily e2e tests for libvirt
+
+on:
+  schedule:
+  # Runs "at 04:15(UTC time) every day" (see https://crontab.guru)
+  # will base on default branch `main`
+    - cron: '15 4 * * *'
+  workflow_dispatch:
+
+env:
+    # cloud-api-adaptor image registry
+    E2E_IMG_REGISTRY: ghcr.io/${{ github.repository_owner }}
+    # cloud-api-adaptor: image release tag
+    E2E_IMG_RELEASE_TAG: latest
+    # cloud-api-adaptor image dev tag
+    E2E_IMG_DEV_TAG: latest-dev
+
+jobs:
+
+  # Build the podvm images.
+  #
+  podvm_builder:
+    uses: ./.github/workflows/podvm_builder.yaml
+    with:
+      registry: ghcr.io/${{ github.repository_owner }}
+      image_tag: latest
+      git_ref: refs/heads/main
+    secrets: inherit
+
+  podvm_binaries:
+    needs: [podvm_builder]
+    uses: ./.github/workflows/podvm_binaries.yaml
+    with:
+      registry: ghcr.io/${{ github.repository_owner }}
+      image_tag: latest
+      git_ref: refs/heads/main
+    secrets: inherit
+
+  podvm:
+    needs: [podvm_binaries]
+    uses: ./.github/workflows/podvm.yaml
+    with:
+      registry: ghcr.io/${{ github.repository_owner }}
+      image_tag: latest
+      git_ref: refs/heads/main
+    secrets: inherit
+
+  # Build and push the cloud-api-adaptor image
+  #
+  # By using a reusable `workflow_call` workflow we are hitting two
+  # GHA limitations here:
+  #
+  # - Cannot access the `env` context from the `with` so that it cannot
+  #   reuse the E2E_IMG_* environment variables set at this workflow level.
+  # - Cannot call a reusable workflow from a job's step, so the we cannot
+  #   merge the `image` and `prep_env` into a single one (unless we create
+  #   another reusable workflow and, well, likely hit another limitation...).
+  #
+  # Reference: https://docs.github.com/en/actions/using-workflows/reusing-workflows#limitations
+  #
+  image:
+    uses: ./.github/workflows/caa_build_and_push.yaml
+    with:
+      registry: ghcr.io/${{ github.repository_owner }}
+      dev_tags: latest-dev
+      release_tags: latest
+      git_ref: main
+    secrets: inherit
+
+  # Edit the kustomize files under the install directory to reference the
+  # built cloud-api-adaptor images. The entire directory is archived so that
+  # downstream jobs can simply download and use the prepared installation
+  # files.
+  #
+  # IMPORTANT: If you are enabling e2e tests for a given provider,
+  # then please update the PROVIDERS list (space-separated names, e.g.,
+  # "aws libvirt").
+  prep_install:
+    needs: [image]
+    runs-on: ubuntu-latest
+    env:
+      PROVIDERS: "libvirt"
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+
+      - name: Install kustomize
+        run: |
+          command -v kustomize >/dev/null || \
+          curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | \
+          bash -s /usr/local/bin
+
+      - name: Update kustomization configuration
+        run: |
+          providers=(${{ env.PROVIDERS }})
+          # If there aren't providers then something is wrong
+          [[ ${#providers[@]} -gt 0 ]] || exit 1
+
+          for provider in ${providers[@]}; do
+            img="${E2E_IMG_REGISTRY}/cloud-api-adaptor"
+            tag="${E2E_IMG_RELEASE_TAG}"
+            [[ "$provider" = "libvirt" ]] && tag="${E2E_IMG_DEV_TAG}"
+            echo "::group::Update ${provider}"
+            pushd "install/overlays/${provider}"
+            kustomize edit set image "cloud-api-adaptor=${img}:${tag}"
+            # Print for debugging
+            cat kustomization.yaml
+            echo "::endgroup::"
+            # Validate the file to avoid it silently testing with a wrong image
+            grep "newName: ${img}" kustomization.yaml
+            grep "newTag: ${tag}" kustomization.yaml
+            popd
+          done
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: install_directory
+          path: install/
+          retention-days: 7
+
+  # Run libvirt e2e tests if pull request labeled 'test_e2e_libvirt'
+  libvirt:
+    name: libvirt
+    needs: [podvm, image, prep_install]
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - centos
+          - ubuntu
+        provider:
+          - generic
+        arch:
+          - amd64
+    uses: ./.github/workflows/e2e_libvirt.yaml
+    with:
+      podvm_image: ghcr.io/${{ github.repository_owner }}/podvm-${{ matrix.provider }}-${{ matrix.os }}-${{ matrix.arch }}:ci-pr${{ github.event.number  }}
+      install_directory_artifact: install_directory
+      git_ref: refs/heads/main