build-push.yml

---
name: Build & Push

on:
  merge_group:
  pull_request:
  push:
    tags: ["v*.*.*"]
  workflow_dispatch:

concurrency:
  group: ${{ github.ref }}-${{ github.workflow }}
  cancel-in-progress: true

permissions:
  contents: read

env:
  REGISTRY: ghcr.io

jobs:
  build-push:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      packages: write
      pull-requests: write
      # This is used to complete the identity challenge
      # with sigstore/fulcio when running outside of PRs.
      id-token: write
    steps:
      - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
        with:
          persist-credentials: false
      - uses: sigstore/cosign-installer@e1523de7571e31dbe865fd2e80c5c7c23ae71eb4 # v3.4.0
        if: github.event_name != 'merge_group'
      - uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
      - uses: docker/setup-buildx-action@0d103c3126aa41d772a8362f6aa67afac040f80c # v3.1.0
        with:
          version: v0.12.1
      - uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
        if: github.event_name != 'merge_group'
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
        id: metadata-base
        env:
          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
        with:
          images: ${{ env.REGISTRY }}/${{ github.repository }}
          # Generate Docker tags based on the following events/attributes
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=pr
            type=semver,pattern={{raw}}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
      - uses: docker/build-push-action@af5a7ed5ba88268d5278f7203fb52cd833f66d6e # v5.2.0
        id: build-and-push-base
        with:
          file: .devcontainer/Dockerfile
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'merge_group' }}
          tags: ${{ steps.metadata-base.outputs.tags }}
          labels: ${{ steps.metadata-base.outputs.labels }}
          annotations: ${{ steps.metadata-base.outputs.annotations }}
          sbom: true
          provenance: true
          cache-from: type=gha
          cache-to: type=gha,mode=max
      - uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
        id: metadata-vscode
        env:
          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
        with:
          images: ${{ env.REGISTRY }}/${{ github.repository }}-vscode
          # Generate Docker tags based on the following events/attributes
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=pr
            type=semver,pattern={{raw}}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
      # Generate image LABEL for devcontainer.metadata
      # the sed expression is a workaround for quotes being eaten in arrays (e.g. ["x", "y", "z"] -> ["x",y,"z"])
      - run: echo "metadata=$(jq -cj '.' .devcontainer/devcontainer-metadata-vscode.json | sed 's/,"/, "/g')" >> "$GITHUB_OUTPUT"
        id: devcontainer-metadata
      - uses: docker/build-push-action@af5a7ed5ba88268d5278f7203fb52cd833f66d6e # v5.2.0
        id: build-and-push-vscode
        with:
          file: .devcontainer/Dockerfile
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'merge_group' }}
          tags: ${{ steps.metadata-vscode.outputs.tags }}
          labels: |
            ${{ steps.metadata-vscode.outputs.labels }}
            devcontainer.metadata=${{ steps.devcontainer-metadata.outputs.metadata }}
          annotations: ${{ steps.metadata-vscode.outputs.annotations }}
          sbom: true
          provenance: true
          cache-from: type=gha
      - uses: ./.github/actions/container-size-diff
        id: container-size-diff
        with:
          from-container: ${{ env.REGISTRY }}/${{ github.repository }}:latest
          to-container: ${{ env.REGISTRY }}/${{ github.repository }}@${{ steps.build-and-push-base.outputs.digest }}
      - uses: marocchino/sticky-pull-request-comment@331f8f5b4215f0445d3c07b4967662a32a2d3e31 # v2.9.0
        with:
          header: container-size-diff
          message: |
            ${{ steps.container-size-diff.outputs.size-diff-markdown }}
      - uses: anchore/sbom-action@9fece9e20048ca9590af301449208b2b8861333b # v0.15.9
        if: steps.build-and-push-base.outputs.digest != '' && github.event_name != 'merge_group'
        with:
          image: ${{ env.REGISTRY }}/${{ github.repository }}@${{ steps.build-and-push-base.outputs.digest }}
          dependency-snapshot: true
      - uses: actions/dependency-review-action@9129d7d40b8c12c1ed0f60400d00c92d437adcce # v4.1.3
        if: github.event_name == 'pull_request'
        with:
          comment-summary-in-pr: on-failure
          fail-on-severity: critical
      - name: Sign the images with GitHub OIDC token
        if: github.event_name != 'merge_group'
        # This step uses the GitHub OIDC identity token to provision an ephemeral certificate
        # against the sigstore community Fulcio instance.
        env:
          DIGEST_BASE: ${{ steps.build-and-push-base.outputs.digest }}
          DIGEST_VSCODE: ${{ steps.build-and-push-vscode.outputs.digest }}
        run: |
          cosign sign --yes --recursive "${{ env.REGISTRY }}/${{ github.repository }}@${DIGEST_BASE}"
          cosign sign --yes --recursive "${{ env.REGISTRY }}/${{ github.repository }}-vscode@${DIGEST_VSCODE}"