cd.yaml

name: CD

on:
  push:
    branches:
      - main

permissions:
  contents: read

jobs:
  release-please:
    name: Release
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    outputs:
      tag_name: ${{ steps.release.outputs.tag_name }}
      release_created: ${{ steps.release.outputs.release_created }}
    steps:
      - uses: googleapis/release-please-action@v4
        id: release
        with:
          target-branch: ${{ github.ref_name }}

  orchestrator:
    name: Orchestrator
    needs:
      - release-please
    runs-on: ubuntu-latest
    outputs:
      # Docs
      should-deploy-docs: ${{ steps.changed-website-files.outputs.any_modified == 'true' || null }}
      # App
      should-build-app: ${{ needs.release-please.outputs.release_created || steps.changed-api-files.outputs.any_modified == 'true' || steps.changed-selfserve-files.outputs.any_modified == 'true' || steps.changed-internal-files.outputs.any_modified == 'true' || null }}
      should-build-api: ${{ needs.release-please.outputs.release_created || steps.changed-api-files.outputs.any_modified == 'true' || null }}
      should-build-selfserve: ${{ needs.release-please.outputs.release_created || steps.changed-selfserve-files.outputs.any_modified == 'true' || null }}
      should-build-internal: ${{ needs.release-please.outputs.release_created || steps.changed-internal-files.outputs.any_modified == 'true' || null }}
      # Assets
      should-build-assets: ${{ needs.release-please.outputs.release_created || steps.changed-assets-files.outputs.any_modified == 'true' || null }}
      # Docker
      should-build-and-push-docker: ${{ needs.release-please.outputs.release_created || steps.changed-api-docker-files.outputs.any_modified == 'true' || steps.changed-selfserve-docker-files.outputs.any_modified == 'true' || steps.changed-internal-docker-files.outputs.any_modified == 'true' || steps.changed-cli-docker-files.outputs.any_modified == 'true' || null}}
      should-build-and-push-api-docker: ${{ needs.release-please.outputs.release_created || steps.changed-api-docker-files.outputs.any_modified == 'true' || steps.changed-api-files.outputs.any_modified == 'true' || null }}
      should-build-and-push-cli-docker: ${{ needs.release-please.outputs.release_created || steps.changed-cli-docker-files.outputs.any_modified == 'true' || steps.changed-api-files.outputs.any_modified == 'true' || null }}
      should-build-and-push-selfserve-docker: ${{ needs.release-please.outputs.release_created || steps.changed-selfserve-docker-files.outputs.any_modified == 'true' || steps.changed-selfserve-files.outputs.any_modified == 'true' || null }}
      should-build-and-push-internal-docker: ${{ needs.release-please.outputs.release_created || steps.changed-internal-docker-files.outputs.any_modified == 'true' || steps.changed-internal-files.outputs.any_modified == 'true' || null }}
      # Terraform account
      should-apply-account-terraform: ${{ needs.release-please.outputs.release_created || steps.changed-accounts-terraform-files.outputs.any_modified == 'true' || null }}
      # Terraform environment
      should-apply-environment-terraform: ${{ needs.release-please.outputs.release_created || steps.changed-environments-terraform-files.outputs.any_modified == 'true' || null }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - uses: tj-actions/changed-files@v45
        id: changed-api-files
        with:
          files: |
            app/api/**
      - uses: tj-actions/changed-files@v45
        id: changed-selfserve-files
        with:
          files: |
            app/selfserve/**
      - uses: tj-actions/changed-files@v45
        id: changed-internal-files
        with:
          files: |
            app/internal/**
      - uses: tj-actions/changed-files@v45
        id: changed-assets-files
        with:
          files: |
            app/cdn/**
      - uses: tj-actions/changed-files@v45
        id: changed-api-docker-files
        with:
          files: |
            infra/docker/api/**
      - uses: tj-actions/changed-files@v45
        id: changed-cli-docker-files
        with:
          files: |
            infra/docker/cli/**
      - uses: tj-actions/changed-files@v45
        id: changed-selfserve-docker-files
        with:
          files: |
            infra/docker/selfserve/**
      - uses: tj-actions/changed-files@v45
        id: changed-internal-docker-files
        with:
          files: |
            infra/docker/internal/**
      - uses: tj-actions/changed-files@v45
        id: changed-accounts-terraform-files
        with:
          files: |
            infra/terraform/accounts/**
            infra/terraform/modules/**
          files_ignore: |
            infra/terraform/modules/service/**
      - uses: tj-actions/changed-files@v45
        id: changed-environments-terraform-files
        with:
          files: |
            infra/terraform/environments/{dev,int,prep,prod}/**
            infra/terraform/modules/**
          files_ignore: |
            infra/terraform/modules/account/**
            infra/terraform/modules/github/**
            infra/terraform/modules/remote-state/**
      - uses: tj-actions/changed-files@v45
        id: changed-website-files
        with:
          files: |
            website/**
            docs/**

  docs:
    name: Documentation
    if: ${{ needs.orchestrator.outputs.should-deploy-docs }}
    concurrency:
      group: deploy-documentation
    needs:
      - orchestrator
    uses: ./.github/workflows/deploy-documentation.yaml
    with:
      deploy: true
    permissions:
      contents: read
      pages: write
      id-token: write

  get-version:
    name: Get latest app versions
    needs:
      - orchestrator
    runs-on: ubuntu-latest
    outputs:
      api: ${{ steps.api-version.outputs.version }}
      cli: ${{ steps.cli-version.outputs.version }}
      selfserve: ${{ steps.selfserve-version.outputs.version }}
      internal: ${{ steps.internal-version.outputs.version }}
      assets: ${{ steps.assets-version.outputs.version }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - id: api-version
        uses: dvsa/.github/.github/actions/get-vol-app-version@v5.0.3
        with:
          project-path: app/api infra/docker/api
      - id: cli-version
        uses: dvsa/.github/.github/actions/get-vol-app-version@v5.0.3
        with:
          project-path: app/api infra/docker/cli
      - id: selfserve-version
        uses: dvsa/.github/.github/actions/get-vol-app-version@v5.0.3
        with:
          project-path: app/selfserve infra/docker/selfserve
      - id: internal-version
        uses: dvsa/.github/.github/actions/get-vol-app-version@v5.0.3
        with:
          project-path: app/internal infra/docker/internal
      - id: assets-version
        uses: dvsa/.github/.github/actions/get-vol-app-version@v5.0.3
        with:
          project-path: app/cdn
      - name: Add to summary
        run: |
          echo "#### App versions:" >> $GITHUB_STEP_SUMMARY
          echo "**API**: \`${{ steps.api-version.outputs.version }}\`" >> $GITHUB_STEP_SUMMARY
          echo "**CLI**: \`${{ steps.cli-version.outputs.version }}\`" >> $GITHUB_STEP_SUMMARY
          echo "**Selfserve**: \`${{ steps.selfserve-version.outputs.version }}\`" >> $GITHUB_STEP_SUMMARY
          echo "**Internal**: \`${{ steps.internal-version.outputs.version }}\`" >> $GITHUB_STEP_SUMMARY
          echo "**Assets**: \`${{ steps.assets-version.outputs.version }}\`" >> $GITHUB_STEP_SUMMARY

  cdn:
    name: CDN
    if: ${{ needs.orchestrator.outputs.should-build-assets }}
    needs:
      - orchestrator
      - get-version
    uses: ./.github/workflows/assets.yaml
    with:
      push: true
      version: ${{ needs.get-version.outputs.assets }}
    permissions:
      contents: read
      id-token: write

  app:
    name: App
    if: ${{ needs.orchestrator.outputs.should-build-app || needs.orchestrator.outputs.should-build-and-push-docker }}
    concurrency:
      group: app-${{ matrix.project }}-${{ needs.get-version.outputs[matrix.project] }}
    needs:
      - orchestrator
      - get-version
    strategy:
      fail-fast: false
      matrix:
        project:
          - api
          - selfserve
          - internal
        exclude:
          - project: ${{ (needs.orchestrator.outputs.should-build-api || needs.orchestrator.outputs.should-build-and-push-api-docker || needs.orchestrator.outputs.should-build-and-push-cli-docker) && 'ignored' || 'api' }}
          - project: ${{ (needs.orchestrator.outputs.should-build-selfserve || needs.orchestrator.outputs.should-build-and-push-selfserve-docker) && 'ignored' || 'selfserve' }}
          - project: ${{ (needs.orchestrator.outputs.should-build-internal || needs.orchestrator.outputs.should-build-and-push-internal-docker) && 'ignored' || 'internal' }}
    uses: ./.github/workflows/php.yaml
    with:
      project: ${{ matrix.project }}
      should-upload-artefact: true
      artefact-name: ${{ matrix.project}}
      retention-days: 1
    permissions:
      contents: read

  docker:
    name: Docker
    if: ${{ always() && !cancelled() && !failure() && (needs.orchestrator.outputs.should-build-app || needs.orchestrator.outputs.should-build-and-push-docker) }}
    concurrency:
      group: docker-${{ matrix.project }}-${{ needs.get-version.outputs[matrix.project] }}
    needs:
      - orchestrator
      - get-version
      - app
    strategy:
      fail-fast: false
      matrix:
        project:
          - api
          - cli
          - selfserve
          - internal
        exclude:
          - project: ${{ needs.orchestrator.outputs.should-build-and-push-api-docker && 'ignored' || 'api' }}
          - project: ${{ needs.orchestrator.outputs.should-build-and-push-cli-docker && 'ignored' || 'cli' }}
          - project: ${{ needs.orchestrator.outputs.should-build-and-push-selfserve-docker && 'ignored' || 'selfserve' }}
          - project: ${{ needs.orchestrator.outputs.should-build-and-push-internal-docker && 'ignored' || 'internal' }}
    uses: ./.github/workflows/docker.yaml
    with:
      project: ${{ matrix.project }}
      version: ${{ needs.get-version.outputs[matrix.project] }}
      app-artefact-name: ${{ matrix.project == 'cli' && 'api' || matrix.project }}
      push: true
    permissions:
      contents: read
      id-token: write
      packages: write

  terraform-account-nonprod:
    name: Account (nonprod)
    if: ${{ needs.orchestrator.outputs.should-apply-account-terraform }}
    concurrency:
      group: terraform-account-nonprod
    needs:
      - orchestrator
    uses: ./.github/workflows/deploy-account.yaml
    with:
      account: nonprod
      apply: true
    permissions:
      contents: read
      id-token: write
      pull-requests: write
    secrets: inherit

  terraform_env_dev:
    name: Environment (dev)
    if: ${{ always() && !cancelled() && !failure() && (needs.orchestrator.outputs.should-apply-environment-terraform || needs.docker.result == 'success' || needs.cdn.result == 'success') }}
    concurrency:
      group: terraform-environment-dev
    needs:
      - get-version
      - orchestrator
      - docker
      - cdn
      - terraform-account-nonprod
    uses: ./.github/workflows/deploy-environment.yaml
    with:
      environment: dev
      api-image-tag: ${{ needs.get-version.outputs.api }}
      cli-image-tag: ${{ needs.get-version.outputs.cli }}
      selfserve-image-tag: ${{ needs.get-version.outputs.selfserve }}
      internal-image-tag: ${{ needs.get-version.outputs.internal }}
      assets-version: ${{ needs.get-version.outputs.assets }}
      apply: true
    permissions:
      contents: read
      id-token: write
      pull-requests: write
    secrets: inherit

  test_dev:
    name: Run Tests on DEV
    if: ${{ always() && !cancelled() && !failure() && needs.terraform_env_dev.result == 'success' }}
    needs:
      - terraform_env_dev
    uses: dvsa/vol-functional-tests/.github/workflows/e2eSmoke.yaml@main
    with:
      platform_env: dev
      aws_role: ${{ vars.ACCOUNT_NONPROD_TEST_OIDC_ROLE }}
      bucket_name: ${{ vars.ACCOUNT_NONPROD_S3_REPORT_BUCKET }}
      bucket_key: ${{ vars.S3_REPORT_BUCKET_KEY }}
    permissions:
      contents: write
      id-token: write
      checks: write

  terraform_env_int:
    name: Environment (int)
    if: ${{ always() && !cancelled() && !failure() && needs.terraform_env_dev.result == 'success' }}
    concurrency:
      group: terraform-environment-int
    needs:
      - get-version
      - orchestrator
      - terraform_env_dev
      - test_dev
    uses: ./.github/workflows/deploy-environment.yaml
    with:
      environment: int
      api-image-tag: ${{ needs.get-version.outputs.api }}
      cli-image-tag: ${{ needs.get-version.outputs.cli }}
      selfserve-image-tag: ${{ needs.get-version.outputs.selfserve }}
      internal-image-tag: ${{ needs.get-version.outputs.internal }}
      assets-version: ${{ needs.get-version.outputs.assets }}
      apply: true
    permissions:
      contents: read
      id-token: write
      pull-requests: write
    secrets: inherit

  test_int:
    if: ${{ always() && !cancelled() && !failure() && needs.terraform_env_int.result == 'success' }}
    name: Run Tests on INT
    needs:
      - terraform_env_int
    uses: dvsa/vol-functional-tests/.github/workflows/e2eSmoke.yaml@main
    with:
      platform_env: int
      aws_role: ${{ vars.ACCOUNT_NONPROD_TEST_OIDC_ROLE }}
      bucket_name: ${{ vars.ACCOUNT_NONPROD_S3_REPORT_BUCKET }}
      bucket_key: ${{ vars.S3_REPORT_BUCKET_KEY }}
    permissions:
      contents: write
      id-token: write
      checks: write

  rollback_int:
    name: Rollback INT Deployment
    if: |
      always() &&
      (needs.test_int.result == 'failure' || needs.test_int.result == 'cancelled') &&
      needs.terraform_env_int.result == 'success'
    needs:
      - test_int
      - terraform_env_int
    uses: ./.github/workflows/deploy-environment.yaml
    with:
      environment: int
      rollback: true
      apply: true
      api-image-tag: ${{ needs.terraform_env_int.outputs.previous_api_image_tag }}
      cli-image-tag: ${{ needs.terraform_env_int.outputs.previous_cli_image_tag }}
      selfserve-image-tag: ${{ needs.terraform_env_int.outputs.previous_selfserve_image_tag }}
      internal-image-tag: ${{ needs.terraform_env_int.outputs.previous_internal_image_tag }}
      assets-version: ${{ needs.terraform_env_int.outputs.previous_assets_version }}
    permissions:
      contents: read
      id-token: write
      pull-requests: write
    secrets: inherit

  terraform-account-prod:
    name: Account (prod)
    if: ${{ always() && !cancelled() && !failure() && needs.release-please.outputs.release_created }}
    concurrency:
      group: terraform-account-prod
    needs:
      - release-please
      - orchestrator
      - terraform_env_int
      - test_int
    uses: ./.github/workflows/deploy-account.yaml
    with:
      account: prod
      apply: true
    permissions:
      contents: read
      id-token: write
      pull-requests: write
    secrets: inherit

  terraform_env_prep:
    name: Environment (prep)
    if: ${{ always() && !cancelled() && !failure() && needs.release-please.outputs.release_created }}
    concurrency:
      group: terraform-environment-prep
    needs:
      - release-please
      - get-version
      - orchestrator
      - terraform-account-prod
    uses: ./.github/workflows/deploy-environment.yaml
    with:
      environment: prep
      api-image-tag: ${{ needs.get-version.outputs.api }}
      cli-image-tag: ${{ needs.get-version.outputs.cli }}
      selfserve-image-tag: ${{ needs.get-version.outputs.selfserve }}
      internal-image-tag: ${{ needs.get-version.outputs.internal }}
      assets-version: ${{ needs.get-version.outputs.assets }}
      apply: true
    permissions:
      contents: read
      id-token: write
      pull-requests: write
    secrets: inherit

  test_prep:
    name: Run Tests on PREP
    if: ${{ always() && !cancelled() && !failure() && needs.terraform_env_prep.result == 'success' }}
    needs:
      - terraform_env_prep
    uses: dvsa/vol-functional-tests/.github/workflows/e2eSmoke.yaml@main
    with:
      platform_env: prep
      aws_role: ${{ vars.ACCOUNT_PROD_TEST_OIDC_ROLE }}
      bucket_name: ${{ vars.ACCOUNT_PROD_S3_REPORT_BUCKET }}
      bucket_key: ${{ vars.S3_REPORT_BUCKET_KEY }}
    permissions:
      contents: write
      id-token: write
      checks: write

  terraform_env_prod:
    name: Environment (prod)
    if: ${{ always() && !cancelled() && !failure() && needs.release-please.outputs.release_created }}
    concurrency:
      group: terraform-environment-prod
    needs:
      - release-please
      - get-version
      - orchestrator
      - terraform_env_prep
    uses: ./.github/workflows/deploy-environment.yaml
    with:
      environment: prod
      api-image-tag: ${{ needs.get-version.outputs.api }}
      cli-image-tag: ${{ needs.get-version.outputs.cli }}
      selfserve-image-tag: ${{ needs.get-version.outputs.selfserve }}
      internal-image-tag: ${{ needs.get-version.outputs.internal }}
      assets-version: ${{ needs.get-version.outputs.assets }}
      apply: true
    permissions:
      contents: read
      id-token: write
      pull-requests: write
    secrets: inherit