build-images.yml

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# or more contributor license agreements.  See the NOTICE file
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# to you under the Apache License, Version 2.0 (the
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#
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# specific language governing permissions and limitations
# under the License.
#
---
name: "Build Images"
on:  # yamllint disable-line rule:truthy
  schedule:
    - cron: '28 0 * * *'
  pull_request_target:
  push:
    branches: ['main', '2.1.1-ak']
permissions:
  # all other permissions are set to none
  contents: read
env:
  MOUNT_SELECTED_LOCAL_SOURCES: "false"
  FORCE_ANSWER_TO_QUESTIONS: "yes"
  FORCE_PULL_IMAGES: "false"
  CHECK_IMAGE_FOR_REBUILD: "true"
  SKIP_CHECK_REMOTE_IMAGE: "true"
  DB_RESET: "true"
  VERBOSE: "true"
  GITHUB_REPOSITORY: ${{ github.repository }}
  GITHUB_USERNAME: ${{ github.actor }}
  # You can override CONSTRAINTS_GITHUB_REPOSITORY by setting secret in your repo but by default the
  # Airflow one is going to be used
  CONSTRAINTS_GITHUB_REPOSITORY: >-
    ${{ secrets.CONSTRAINTS_GITHUB_REPOSITORY != '' &&
        secrets.CONSTRAINTS_GITHUB_REPOSITORY || 'apache/airflow' }}
  # This token is WRITE one - pull_request_target type of events always have the WRITE token
  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
  GITHUB_REGISTRY_PULL_IMAGE_TAG: "latest"
  GITHUB_REGISTRY_WAIT_FOR_IMAGE: "false"
  INSTALL_PROVIDERS_FROM_SOURCES: "true"
  TARGET_COMMIT_SHA: ${{ github.event.pull_request.head.sha || github.sha }}
  AIRFLOW_LOGIN_TO_GITHUB_REGISTRY: "true"

concurrency:
  group: build-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:

  build-info:
    timeout-minutes: 10
    name: "Build Info"
    runs-on: ${{ github.repository == 'apache/airflow' && 'self-hosted' || 'ubuntu-20.04' }}
    env:
      GITHUB_CONTEXT: ${{ toJson(github) }}
      targetBranch: ${{ github.event.pull_request.base.ref }}
      pullRequestLabels: "${{ toJSON(github.event.pull_request.labels.*.name) }}"
    outputs:
      runsOn: ${{ github.repository == 'apache/airflow' && '["self-hosted"]' || '["ubuntu-20.04"]' }}
      pythonVersions: "${{ steps.selective-checks.python-versions }}"
      upgradeToNewerDependencies: ${{ steps.selective-checks.outputs.upgrade-to-newer-dependencies }}
      allPythonVersions: ${{ steps.selective-checks.outputs.all-python-versions }}
      defaultPythonVersion: ${{ steps.selective-checks.outputs.default-python-version }}
      run-tests: ${{ steps.selective-checks.outputs.run-tests }}
      run-kubernetes-tests: ${{ steps.selective-checks.outputs.run-kubernetes-tests }}
      image-build: ${{ steps.dynamic-outputs.outputs.image-build }}
      cacheDirective: ${{ steps.dynamic-outputs.outputs.cacheDirective }}
      targetBranch: ${{ steps.dynamic-outputs.outputs.targetBranch }}
      defaultBranch: ${{ steps.selective-checks.outputs.default-branch }}
    steps:
      # Retrieve it to be able to determine which files has changed in the incoming commit of the PR
      # we checkout the target commit and it's parent to be able to compare them
      - uses: actions/checkout@v2
        with:
          ref: ${{ env.TARGET_COMMIT_SHA }}
          persist-credentials: false
          fetch-depth: 2
      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
        uses: actions/checkout@v2
        with:
          persist-credentials: false
          submodules: recursive
      - name: env
        run: printenv
        env:
          dynamicOutputs: ${{ toJSON(steps.dynamic-outputs.outputs) }}
      - name: Selective checks
        id: selective-checks
        env:
          PR_LABELS: ${{ env.pullRequestLabels }}
        run: |
          if [[ ${GITHUB_EVENT_NAME} == "pull_request_target" ]]; then
            # Run selective checks
            ./scripts/ci/selective_ci_checks.sh "${TARGET_COMMIT_SHA}"
          else
            # Run all checks
            ./scripts/ci/selective_ci_checks.sh
          fi
      - name: Compute dynamic outputs
        id: dynamic-outputs
        run: |
          set -x
          if [[ "${{ github.event_name }}" == 'pull_request_target' ]]; then
              echo "::set-output name=targetBranch::${targetBranch}"
          else
            # Direct push to branch, or scheduled build
              echo "::set-output name=targetBranch::${GITHUB_REF#refs/heads/}"
          fi

          if [[ "${{ github.event_name }}" == 'schedule' ]]; then
              echo "::set-output name=cacheDirective::disabled"
          else
              echo "::set-output name=cacheDirective::pulled"
          fi

          if [[ "$SELECTIVE_CHECKS_IMAGE_BUILD" == "true" && "$BUILD_IMAGES_OVERRIDE" != "false" ]]; then
              echo "::set-output name=image-build::true"
          else
              echo "::set-output name=image-build::false"
          fi
        env:
          SELECTIVE_CHECKS_IMAGE_BUILD: ${{ steps.selective-checks.outputs.image-build }}
          BUILD_IMAGES_OVERRIDE: ${{ secrets.AIRFLOW_GITHUB_REGISTRY_WAIT_FOR_IMAGE }}

  build-ci-images:
    permissions:
      packages: write
    timeout-minutes: 80
    name: "Build CI images ${{matrix.python-version}}"
    runs-on: ${{ fromJson(needs.build-info.outputs.runsOn) }}
    needs: [build-info]
    strategy:
      matrix:
        # We need to attempt to build all possible versions here because pull_request_target
        # event is run for both main and v1-10-tests
        python-version: ${{ fromJson(needs.build-info.outputs.allPythonVersions) }}
      fail-fast: true
    if: needs.build-info.outputs.image-build == 'true'
    env:
      RUNS_ON: ${{ fromJson(needs.build-info.outputs.runsOn)[0] }}
      BACKEND: postgres
      PYTHON_MAJOR_MINOR_VERSION: ${{ matrix.python-version }}
      UPGRADE_TO_NEWER_DEPENDENCIES: ${{ needs.build-info.outputs.upgradeToNewerDependencies }}
      DOCKER_CACHE: ${{ needs.build-info.outputs.cacheDirective }}
      CHECK_IF_BASE_PYTHON_IMAGE_UPDATED: >
        ${{ github.event_name == 'pull_request_target' && 'false' || 'true' }}
      outputs: ${{toJSON(needs.build-info.outputs) }}
    steps:
      - name: Set envs
        # Can't refer to "global" env to set a var in a job's env context
        run: |
          echo "GITHUB_REGISTRY_PUSH_IMAGE_TAG=${TARGET_COMMIT_SHA}" >> "$GITHUB_ENV"
      - uses: actions/checkout@v2
        with:
          ref: ${{ env.TARGET_COMMIT_SHA }}
          persist-credentials: false
          submodules: recursive
      - name: "Retrieve DEFAULTS from the _initialization.sh"
        # We cannot "source" the script here because that would be a security problem (we cannot run
        # any code that comes from the sources coming from the PR. Therefore we extract the
        # DEFAULT_BRANCH and DEFAULT_CONSTRAINTS_BRANCH via custom grep/awk/sed commands
        id: defaults
        run: |
          DEFAULT_BRANCH=$(grep "export DEFAULT_BRANCH" scripts/ci/libraries/_initialization.sh | \
            awk 'BEGIN{FS="="} {print $3}' | sed s'/["}]//g')
          echo "DEFAULT_BRANCH=${DEFAULT_BRANCH}" >> $GITHUB_ENV
          DEFAULT_CONSTRAINTS_BRANCH=$(grep "export DEFAULT_CONSTRAINTS_BRANCH" \
            scripts/ci/libraries/_initialization.sh | \
            awk 'BEGIN{FS="="} {print $3}' | sed s'/["}]//g')
          echo "DEFAULT_CONSTRAINTS_BRANCH=${DEFAULT_CONSTRAINTS_BRANCH}" >> $GITHUB_ENV
      - name: >
          Checkout "${{ needs.build-info.outputs.targetBranch }}" branch to 'main-airflow' folder
          to use ci/scripts from there.
        uses: actions/checkout@v2
        with:
          path: "main-airflow"
          ref: "${{ needs.build-info.outputs.targetBranch }}"
          persist-credentials: false
          submodules: recursive
      - name: "Setup python"
        uses: actions/setup-python@v2
        with:
          python-version: ${{ needs.build-info.outputs.defaultPythonVersion }}
      - name: >
          Override "scripts/ci" with the "${{ needs.build-info.outputs.targetBranch }}" branch
          so that the PR does not override it
        # We should not override those scripts which become part of the image as they will not be
        # changed in the image built - we should only override those that are executed to build
        # the image.
        run: |
          rm -rf "scripts/ci"
          mv "main-airflow/scripts/ci" "scripts"
      - name: "Free space"
        run: ./scripts/ci/tools/free_space.sh
      - name: "Build CI images ${{ matrix.python-version }}:${{ env.TARGET_COMMIT_SHA }}"
        run: ./scripts/ci/images/ci_prepare_ci_image_on_ci.sh
      - name: "Push CI images ${{ matrix.python-version }}:${{ env.TARGET_COMMIT_SHA }}"
        run: ./scripts/ci/images/ci_push_ci_images.sh
      # Remove me on 15th of August 2021 after all users had chance to rebase
      - name: "Push Legacy CI images ${{ matrix.python-version }}:${{ env.TARGET_COMMIT_SHA }}"
        run: ./scripts/ci/images/ci_push_legacy_ci_images.sh
        if: github.event_name == 'pull_request_target'

  build-prod-images:
    permissions:
      packages: write
    timeout-minutes: 80
    name: "Build PROD images ${{matrix.python-version}}"
    runs-on: ${{ fromJson(needs.build-info.outputs.runsOn) }}
    needs: [build-info, build-ci-images]
    strategy:
      matrix:
        # We need to attempt to build all possible versions here because pull_request_target
        # event is run for both main and v1-10-tests
        python-version: ${{ fromJson(needs.build-info.outputs.allPythonVersions) }}
      fail-fast: true
    if: needs.build-info.outputs.image-build == 'true'
    env:
      RUNS_ON: ${{ fromJson(needs.build-info.outputs.runsOn)[0] }}
      BACKEND: postgres
      PYTHON_MAJOR_MINOR_VERSION: ${{ matrix.python-version }}
      UPGRADE_TO_NEWER_DEPENDENCIES: ${{ needs.build-info.outputs.upgradeToNewerDependencies }}
      DOCKER_CACHE: ${{ needs.build-info.outputs.cacheDirective }}
      CHECK_IF_BASE_PYTHON_IMAGE_UPDATED: >
        ${{ github.event_name == 'pull_request_target' && 'false' || 'true' }}
      VERSION_SUFFIX_FOR_PYPI: ".dev0"
      INSTALL_PROVIDERS_FROM_SOURCES: >
        ${{ needs.build-info.outputs.defaultBranch == 'main' && 'true' || 'false' }}
    steps:
      - name: Set envs
        # Set pull image tag for CI image build, in order to pull the image pushed
        # Just a moment ago by build-ci-images job
        run: |
          echo "GITHUB_REGISTRY_PUSH_IMAGE_TAG=${TARGET_COMMIT_SHA}" >> "$GITHUB_ENV"
          echo "GITHUB_REGISTRY_PULL_IMAGE_TAG=${TARGET_COMMIT_SHA}" >> "$GITHUB_ENV"
      - uses: actions/checkout@v2
        with:
          ref: ${{ env.TARGET_COMMIT_SHA }}
          persist-credentials: false
          submodules: recursive
      - name: "Retrieve DEFAULTS from the _initialization.sh"
        # We cannot "source" the script here because that would be a security problem (we cannot run
        # any code that comes from the sources coming from the PR. Therefore we extract the
        # DEFAULT_BRANCH and DEFAULT_CONSTRAINTS_BRANCH via custom grep/awk/sed commands
        id: defaults
        run: |
          DEFAULT_BRANCH=$(grep "export DEFAULT_BRANCH" scripts/ci/libraries/_initialization.sh | \
            awk 'BEGIN{FS="="} {print $3}' | sed s'/["}]//g')
          echo "DEFAULT_BRANCH=${DEFAULT_BRANCH}" >> $GITHUB_ENV
          DEFAULT_CONSTRAINTS_BRANCH=$(grep "export DEFAULT_CONSTRAINTS_BRANCH" \
            scripts/ci/libraries/_initialization.sh | \
            awk 'BEGIN{FS="="} {print $3}' | sed s'/["}]//g')
          echo "DEFAULT_CONSTRAINTS_BRANCH=${DEFAULT_CONSTRAINTS_BRANCH}" >> $GITHUB_ENV
      - name: >
          Checkout "${{ needs.build-info.outputs.targetBranch }}" branch to 'main-airflow' folder
          to use ci/scripts from there.
        uses: actions/checkout@v2
        with:
          path: "main-airflow"
          ref: "${{ needs.build-info.outputs.targetBranch }}"
          persist-credentials: false
          submodules: recursive
      - name: "Setup python"
        uses: actions/setup-python@v2
        with:
          python-version: ${{ needs.build-info.outputs.defaultPythonVersion }}
      - name: >
          Override "scripts/ci" with the "${{ needs.build-info.outputs.targetBranch }}" branch
          so that the PR does not override it
        # We should not override those scripts which become part of the image as they will not be
        # changed in the image built - we should only override those that are executed to build
        # the image.
        run: |
          rm -rf "scripts/ci"
          mv "main-airflow/scripts/ci" "scripts"
      - name: "Free space"
        run: ./scripts/ci/tools/free_space.sh
      - name: "Build CI images ${{ matrix.python-version }}:${{ env.TARGET_COMMIT_SHA }}"
        run: ./scripts/ci/images/ci_prepare_ci_image_on_ci.sh
        # Pull images built in the previous step
        env:
          GITHUB_REGISTRY_WAIT_FOR_IMAGE: "true"
          # Here we are using PULL_IMAGE_TAG set in the environment variables above
      - name: "Build PROD images ${{ matrix.python-version }}:${{ env.TARGET_COMMIT_SHA }}"
        run: ./scripts/ci/images/ci_prepare_prod_image_on_ci.sh
        env:
          # GITHUB_REGISTRY_PULL_IMAGE_TAG is overriden to latest in order to build PROD image using "latest"
          GITHUB_REGISTRY_PULL_IMAGE_TAG: "latest"
      - name: "Push PROD images ${{ matrix.python-version }}:${{ env.TARGET_COMMIT_SHA }}"
        run: ./scripts/ci/images/ci_push_production_images.sh
        env:
          # GITHUB_REGISTRY_PULL_IMAGE_TAG is overriden to latest in order to build PROD image using "latest"
          GITHUB_REGISTRY_PULL_IMAGE_TAG: "latest"
      # Remove me on 15th of August 2021 after all users had chance to rebase
      - name: "Push Legacy PROD images ${{ matrix.python-version }}:${{ env.TARGET_COMMIT_SHA }}"
        run: ./scripts/ci/images/ci_push_legacy_prod_images.sh
        if: github.event_name == 'pull_request_target'

  cancel-on-ci-build:
    permissions:
      actions: write
    name: "Cancel 'CI Build' jobs on workflow failed/cancelled"
    runs-on: ${{ github.repository == 'apache/airflow' && 'self-hosted' || 'ubuntu-20.04' }}
    if: failure() || cancelled()
    needs: [build-ci-images, build-prod-images]
    env:
      branch: ${{ github.event.pull_request.head.ref }}
      thisRun: ${{ github.run_id }}
    steps:
      - name: Find running CI Build jobs for ${{ env.TARGET_COMMIT_SHA }}
        run: |
          if [[ "${{ github.event_name }}" == 'pull_request_target' ]]; then
            event_filter="event=pull_request&"
          else
            branch="${GITHUB_REF#refs/heads/}"
            event_filter=""
          fi

          for cancel_url in $(
              gh api "/repos/$GITHUB_REPOSITORY/actions/runs?${event_filter}branch=${branch}" \
                  jq -r '
                    .workflow_runs[] |
                    select(.head_sha == $ENV.TARGET_COMMIT_SHA and .status != "completed") |
                    .cancel_url
                  ' \
          ); do
            # One of these URls will be _this_ workflow, so lets exclude that!
            [[ $cancel_url  == */$thisRun/* ]] && continue

            echo "Cancelling $cancel_url"
            gh api -X POST --silent "$cancel_url"
          done