release.yml

name: Release Please

on:
  push:
    branches:
      - main
      - "[0-9]+.[0-9]+.x"
  workflow_dispatch:

    # Declare default permissions as read only.
permissions: read-all

defaults:
  run:
    shell: bash

env:
  GO_VERSION: "~1.21"
  # renovate: datasource=github-releases depName=kubernetes-sigs/controller-tools
  CONTROLLER_TOOLS_VERSION: "v0.13.0"
  SCHEDULER_COMPATIBLE_K8S_VERSION: "v0.24.3"
  PUBLISHABLE_ITEMS: '[".","lifecycle-operator","metrics-operator","keptn-cert-manager","runtimes/deno-runtime","runtimes/python-runtime","scheduler"]'

jobs:
  release-please:
    runs-on: ubuntu-22.04
    outputs:
      keptn-release-created: ${{ steps.release.outputs.release_created }}
      keptn-tag-name: ${{ steps.release.outputs.tag_name }}
      cert-manager-release-created: ${{ steps.release.outputs.keptn-cert-manager--release_created }}
      cert-manager-tag-name: ${{ steps.release.outputs.keptn-cert-manager--tag_name }}
      metrics-operator-release-created: ${{ steps.release.outputs.metrics-operator--release_created }}
      metrics-operator-tag-name: ${{ steps.release.outputs.metrics-operator--tag_name }}
      releases-created: ${{ steps.release.outputs.releases_created }}
      build-matrix: ${{ steps.build-matrix.outputs.result }}
      GIT_SHA: ${{ steps.extract_branch.outputs.GIT_SHA }}
      DATETIME: ${{ steps.get_datetime.outputs.DATETIME }}
      BUILD_TIME: ${{ steps.get_datetime.outputs.BUILD_TIME }}
    steps:
      - name: Checkout
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      - name: Extract branch name
        id: extract_branch
        uses: keptn/gh-action-extract-branch-name@6ca4fe061da10c66b2d7341fd1fb12962ad911b2

      - name: Get current date and time
        id: get_datetime
        run: |
          DATETIME=$(date +'%Y%m%d%H%M')
          BUILD_TIME=$(date -u "+%F_%T")
          echo "DATETIME=$DATETIME" >> "$GITHUB_OUTPUT"
          echo "BUILD_TIME=$BUILD_TIME" >> "$GITHUB_OUTPUT"

      - name: Run release please
        uses: google-github-actions/release-please-action@e4dc86ba9405554aeba3c6bb2d169500e7d3b4ee # v4
        id: release
        with:
          token: ${{ secrets.KEPTN_BOT_TOKEN }}
          default-branch: main
          signoff: "keptn-bot <86361500+keptn-bot@users.noreply.github.com>"

      - name: Debug info
        env:
          CHANGED_ITEMS: ${{ steps.release.outputs.paths_released }}
          KEPTN_TAG: ${{ steps.release.outputs.tag_name }}
          PATHS_RELEASED: ${{ steps.release.outputs.paths_released }}
          ARTIFACT_TAG_NAME: ${{ steps.release.outputs[format('{0}--tag_name', fromJson(steps.release.outputs.paths_released)[0])] }}
          FULL_RELEASE_OUTPUT: ${{ toJSON(steps.release.outputs) }}
        run: |
          echo "PATHS_RELEASE_JSON: ${PATHS_RELEASE_JSON}"
          echo "FULL RELEASE OUTPUT: ${FULL_RELEASE_OUTPUT}"
          echo "CHANGED_ITEMS: ${CHANGED_ITEMS}"
          echo "KEPTN_TAG: ${KEPTN_TAG}"
          echo "ARTIFACT_TAG_NAME: ${ARTIFACT_TAG_NAME}"
          echo "PATHS_RELEASED: ${PATHS_RELEASED}"
          echo "CERT_MANAGER_TAG_NAME: ${{ steps.release.outputs.keptn-cert-manager--tag_name }}"
          echo "KEPTN_TAG_NAME: ${{ steps.release.outputs.tag_name }}"
          echo "METRICS_OPERATOR_TAG_NAME: ${{ steps.release.outputs.metrics-operator--tag_name }}"

      - name: Create release matrix
        id: build-matrix
        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7
        env:
          CHANGED_ITEMS: ${{ steps.release.outputs.paths_released }}
          KEPTN_TAG: ${{ steps.release.outputs.tag_name }}
          ARTIFACT_TAG_NAME: ${{ steps.release.outputs[format('{0}--tag_name', fromJson(steps.release.outputs.paths_released)[0])] }}
        with:
          script: |
            const changedItems = JSON.parse(process.env.CHANGED_ITEMS || '[]');
            console.log("changed items", changedItems);
            const eligibleItems = JSON.parse(process.env.PUBLISHABLE_ITEMS || '[]');
            console.log("eligible items", eligibleItems);
            const itemsToPublish = changedItems.filter(i => eligibleItems.includes(i));
            console.log("items to publish", itemsToPublish);

            console.log("setting up build matrix...");
            const releaseMatrix = [];
            itemsToPublish.forEach(item => {
                switch (item) {
                    case "lifecycle-operator":
                    case "scheduler":
                    case "metrics-operator":
                        releaseMatrix.push({
                            name: item,
                            folder: item,
                            tagName: process.env.ARTIFACT_TAG_NAME
                        });
                        break;
                    case "keptn-cert-manager":
                        releaseMatrix.push({
                            name: "certificate-operator",
                            folder: item,
                            tagName: process.env.ARTIFACT_TAG_NAME
                        });
                        break;
                    case "runtimes/deno-runtime":
                    case "runtimes/python-runtime":
                        releaseMatrix.push({
                            name: item.replace("runtimes/", ""),
                            folder: item,
                            tagName: process.env.ARTIFACT_TAG_NAME
                        });
                        break;
                    case ".":
                    default:
                        break;
                }
            });
            console.log("release matrix: " + JSON.stringify({ config: releaseMatrix }));
            return releaseMatrix.length > 0 ? { config: releaseMatrix } : {};

  build-release:
    if: needs.release-please.outputs.releases-created == 'true' && needs.release-please.outputs.build-matrix != '{}'
    needs:
      - release-please
    strategy:
      matrix: ${{ fromJson(needs.release-please.outputs.build-matrix) }}
    runs-on: ubuntu-22.04
    permissions:
      contents: write
      packages: write
      id-token: write
    env:
      IMAGE_NAME: ghcr.io/keptn/${{ matrix.config.name }}
      DATETIME: ${{ needs.release-please.outputs.DATETIME }}
      BUILD_TIME: ${{ needs.release-please.outputs.BUILD_TIME }}
      GIT_SHA: ${{ needs.release-please.outputs.GIT_SHA }}
    steps:
      - name: Checkout
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
        with:
          submodules: recursive

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@4fd812986e6c8c2a69e18311145f9371337f27d4 # v3

      - name: Login to GitHub Container Registry
        uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20 # v3.1.0
        with:
          registry: "ghcr.io"
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up Cosign
        uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 # v3.5.0

      - name: Clean up image tag
        id: clean-image-tag
        env:
          IMAGE_TAG: ${{ matrix.config.tagName }}
        run: |
          # Remove artifact prefix from tag so that we get clean image tags
          temp="${IMAGE_TAG##keptn-}"
          temp="${temp##cert-manager-}"
          temp="${temp##python-runtime-}"
          temp="${temp##deno-runtime-}"
          temp="${temp##scheduler-}"
          temp="${temp##lifecycle-operator-}"
          echo "IMAGE_TAG=${temp##metrics-operator-}" >> "$GITHUB_OUTPUT"

      - name: Build Docker Image
        id: docker_build_image
        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
        with:
          context: ${{ matrix.config.folder }}
          platforms: linux/amd64,linux/arm64
          target: production
          tags: |
            ${{ env.IMAGE_NAME }}:${{ steps.clean-image-tag.outputs.IMAGE_TAG }}
          build-args: |
            GIT_HASH=${{ env.GIT_SHA }}
            RELEASE_VERSION=dev-${{ env.DATETIME }}
            BUILD_TIME=${{ env.BUILD_TIME }}
            CONTROLLER_TOOLS_VERSION=${{ env.CONTROLLER_TOOLS_VERSION }}
            SCHEDULER_COMPATIBLE_K8S_VERSION=${{ env.SCHEDULER_COMPATIBLE_K8S_VERSION }}
          builder: ${{ steps.buildx.outputs.name }}
          push: true
          cache-from: type=gha,scope=${{ github.ref_name }}-${{ matrix.config.name }}
          cache-to: type=gha,scope=${{ github.ref_name }}-${{ matrix.config.name }}

      - name: Sign container image
        env:
          IMAGE_DIGEST: ${{ steps.docker_build_image.outputs.digest }}
        run: |
          cosign sign --yes ${{ env.IMAGE_NAME }}@${{ env.IMAGE_DIGEST }}
          cosign verify \
            --certificate-identity-regexp="https://github.com/keptn/lifecycle-toolkit/.*" \
            --certificate-oidc-issuer="https://token.actions.githubusercontent.com" \
            ${{ env.IMAGE_NAME }}@${{ env.IMAGE_DIGEST }}

      - name: Generate SBOM
        uses: anchore/sbom-action@7ccf588e3cf3cc2611714c2eeae48550fbc17552 # v0.15.11
        with:
          image: ${{ env.IMAGE_NAME }}:${{ steps.clean-image-tag.outputs.IMAGE_TAG }}
          artifact-name: sbom-${{ matrix.config.name }}
          output-file: ./sbom-${{ matrix.config.name }}.spdx.json

      - name: Attach SBOM to release
        uses: softprops/action-gh-release@a74c6b72af54cfa997e81df42d94703d6313a2d0 # v2.0.6
        with:
          tag_name: ${{ matrix.config.tagName }}
          files: ./sbom-${{ matrix.config.name }}.spdx.json

      - name: Attest the Image with SBOM
        env:
          IMAGE_DIGEST: ${{ steps.docker_build_image.outputs.digest }}
        run: |
          echo "Attesting SBOM for this release and image..."
          cosign attest --yes --type spdxjson --predicate ./sbom-${{ matrix.config.name }}.spdx.json ${{ env.IMAGE_NAME }}@${{ env.IMAGE_DIGEST }}
          echo "Verifying that the attestation worked..."
          cosign verify-attestation --type spdxjson \
            --certificate-identity-regexp="https://github.com/keptn/lifecycle-toolkit/.*" \
            --certificate-oidc-issuer="https://token.actions.githubusercontent.com" \
            --output-file ./cosign-attest-output.json \
            ${{ env.IMAGE_NAME }}@${{ env.IMAGE_DIGEST }}

      - name: Upload verification log as artifact
        uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b # v4
        with:
          name: cosign-attest-verification-log
          path: ./cosign-attest-output.json

  update-examples:
    name: Update examples
    needs:
      - release-please
    if: needs.release-please.outputs.keptn-release-created == 'true'
    with:
      tag_name: ${{ needs.release-please.outputs.keptn-tag-name }}
    uses: ./.github/workflows/release-examples.yml
    secrets: inherit