docker-publish.yml

name: Build and publish Docker image

on:
  push:
    branches: [dev]
    tags:
      - 'v*'
  pull_request:
    paths:
      - 'Dockerfile'
      - '.github/workflows/docker-publish.yml'
  workflow_dispatch:
    inputs:
      git_tag:
        description: 'Git tag to build and publish (e.g. v1.2.3). Leave empty to build current HEAD as a dev image.'
        required: false
        type: string

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      attestations: write
      artifact-metadata: write
      id-token: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false
          ref: ${{ github.event_name == 'workflow_dispatch' && inputs.git_tag || '' }}

      - name: Log in to GitHub Container Registry
        if: github.event_name != 'pull_request'
        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Resolve release tag value
        id: release_tag
        shell: bash
        run: |
          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            TAG="${{ inputs.git_tag }}"
          else
            TAG="${GITHUB_REF#refs/tags/}"
          fi
          if [[ "${TAG}" == v* ]]; then
            echo "value=${TAG}" >> "$GITHUB_OUTPUT"
            echo "is_release=true" >> "$GITHUB_OUTPUT"
          else
            echo "value=" >> "$GITHUB_OUTPUT"
            echo "is_release=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          flavor: |
            latest=false
          tags: |
            # dev branch or manual dispatch without a tag: short commit SHA + latest
            type=sha,prefix=,format=short,enable=${{ github.ref == 'refs/heads/dev' || (github.event_name == 'workflow_dispatch' && inputs.git_tag == '') }}
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/dev' || (github.event_name == 'workflow_dispatch' && inputs.git_tag == '') }}

            # git tags (push or manual dispatch with a tag): semver breakdown
            type=semver,pattern={{version}},value=${{ steps.release_tag.outputs.value }},enable=${{ steps.release_tag.outputs.is_release == 'true' }}
            type=semver,pattern={{major}}.{{minor}},value=${{ steps.release_tag.outputs.value }},enable=${{ steps.release_tag.outputs.is_release == 'true' }}
            type=semver,pattern={{major}},value=${{ steps.release_tag.outputs.value }},enable=${{ steps.release_tag.outputs.is_release == 'true' && !startsWith(steps.release_tag.outputs.value, 'v0.') }}

      - name: Compute short SHA
        id: vars
        run: echo "short_sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT

      - name: Setup app
        uses: ./.github/actions/setup

      - name: Build site
        env:
          VITE_BUILD_HASH: ${{ steps.vars.outputs.short_sha }}
          VITE_IS_RELEASE_TAG: ${{ steps.release_tag.outputs.is_release }}
        run: |
          NODE_OPTIONS=--max_old_space_size=4096 pnpm run build

      - name: Set up QEMU
        uses: docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130 # v3.7.0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0

      - name: Build and push Docker image
        id: push
        uses: docker/build-push-action@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6.19.2
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          platforms: linux/amd64,linux/arm64
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-contexts: |
            site-dist=./dist

      - name: Generate artifact attestation
        if: github.event_name != 'pull_request'
        uses: actions/attest-build-provenance@a2bbfa25375fe432b6a289bc6b6cd05ecd0c4c32 # v4.1.0
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: false