lde/.github/workflows/docker.yml at main · ldelements/lde · GitHub

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name: Docker

# Triggered by the GitHub Releases nx release creates, NOT by tag pushes: a
# multi-package release pushes all its tags in one batch, and GitHub emits no
# tag-push events at all when more than three tags arrive at once – so a tag
# trigger would silently never fire for this monorepo.
on:
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      ref:
        description: 'Tag or ref to build the image from (e.g. @lde/search-api-server@0.1.0)'
        required: true

permissions:
  contents: read
  packages: write

# A multi-package nx release fires a burst of release events. GitHub keeps at
# most one *pending* run per concurrency group (cancel-in-progress: false only
# protects the in-progress run), so a single shared group silently cancelled
# every image build in the batch except one. Key the group by release tag
# instead: each package builds independently – safe, because every package
# pushes to its own ghcr image, so their :latest tags never contend – while
# duplicate runs for the same tag coalesce: builds of one immutable tag are
# idempotent, so the newest run simply supersedes the older one.
concurrency:
  group: docker-publish-${{ github.event_name == 'workflow_dispatch' && inputs.ref || github.event.release.tag_name }}
  cancel-in-progress: true

jobs:
  build:
    # Every released package fires a release event; only the image-shipping
    # packages get past this guard (keep it in sync with the packages that
    # have a Dockerfile).
    if: >-
      github.event_name == 'workflow_dispatch' ||
      startsWith(github.event.release.tag_name, '@lde/search-api-server@') ||
      startsWith(github.event.release.tag_name, '@lde/search-indexer@')
    # Each architecture builds AND boots natively on its own runner, so the
    # docker:smoke gate covers both – an emulated (QEMU) arm64 build could
    # only ever boot-test amd64.
    strategy:
      matrix:
        include:
          - architecture: amd64
            runner: ubuntu-latest
          - architecture: arm64
            runner: ubuntu-24.04-arm
    runs-on: ${{ matrix.runner }}
    steps:
      - uses: actions/checkout@v7
        with:
          ref: ${{ github.event_name == 'workflow_dispatch' && inputs.ref || github.ref }}

      # The image is built from this tagged commit's own workspace outputs
      # (nx docker:build stages the compiled package, its workspace
      # dependencies and a pruned lockfile), so it needs no npm publish to
      # have happened – the release tag alone identifies the package and
      # version (e.g. "@lde/search-indexer@0.1.0").
      - name: Determine package and version
        id: version
        # The ref reaches the shell via env, never inline interpolation, so a
        # crafted dispatch input cannot inject shell syntax.
        env:
          REF: ${{ github.event_name == 'workflow_dispatch' && inputs.ref || github.ref_name }}
        run: |
          package="${REF#@lde/}"
          echo "package=${package%@*}" >> "$GITHUB_OUTPUT"
          echo "version=${REF##*@}" >> "$GITHUB_OUTPUT"

      - uses: actions/setup-node@v7
        with:
          node-version: lts/*
          cache: 'npm'

      - run: npm ci

      - name: Build and smoke-test the image
        run: npx nx run "@lde/${{ steps.version.outputs.package }}:docker:smoke"

      - uses: docker/login-action@v4.6.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Push the architecture image
        run: |
          package="${{ steps.version.outputs.package }}"
          version="${{ steps.version.outputs.version }}"
          docker tag "packages-${package}" "ghcr.io/ldelements/${package}:${version}-${{ matrix.architecture }}"
          docker push "ghcr.io/ldelements/${package}:${version}-${{ matrix.architecture }}"

  # Stitches the per-architecture images into one multi-architecture manifest,
  # so :<version> and :latest resolve natively on amd64 and arm64 alike.
  # Skipped automatically when build is skipped (needs propagates the skip).
  publish-manifest:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - name: Determine package and version
        id: version
        env:
          REF: ${{ github.event_name == 'workflow_dispatch' && inputs.ref || github.event.release.tag_name }}
        run: |
          package="${REF#@lde/}"
          echo "package=${package%@*}" >> "$GITHUB_OUTPUT"
          echo "version=${REF##*@}" >> "$GITHUB_OUTPUT"

      - uses: docker/login-action@v4.6.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Create the multi-architecture manifest
        run: |
          package="${{ steps.version.outputs.package }}"
          version="${{ steps.version.outputs.version }}"
          docker buildx imagetools create \
            --tag "ghcr.io/ldelements/${package}:${version}" \
            --tag "ghcr.io/ldelements/${package}:latest" \
            "ghcr.io/ldelements/${package}:${version}-amd64" \
            "ghcr.io/ldelements/${package}:${version}-arm64"