build-ide.yml

---
name: Build and publish Docker image

on:
  push:
    branches: ['master']

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: mgnsk/ide

permissions:
  contents: read
  packages: write
  attestations: write
  id-token: write

jobs:
  build:
    name: Build and publish Docker image
    runs-on: ubuntu-latest
    steps:
      - name: Check out repository
        uses: actions/checkout@v4

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

      - name: Copy dotfiles to build context
        run: mkdir -p ide/dotfiles; git archive --format=tar HEAD | tar Cx ide/dotfiles

      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # set edge tag
            type=edge
            # set last commit tag
            type=sha,enable=true,priority=100,prefix=sha-,suffix=,format=short

      - name: Build and push Docker image
        id: push
        uses: docker/build-push-action@v6
        with:
          context: ide
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            "uid=1000"
            "gid=1000"
            "user=ide"
            "group=ide"
          # cache-from: type=gha
          # cache-to: type=gha,mode=max

      # Commented out to avoid creating extra images in registry.
      # - name: Generate artifact attestation
      #   uses: actions/attest-build-provenance@v1
      #   with:
      #     subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
      #     subject-digest: ${{ steps.push.outputs.digest }}
      #     push-to-registry: true

  clean:
    runs-on: ubuntu-latest
    name: Prune old images
    needs: build
    steps:
      - uses: snok/container-retention-policy@v3.0.0
        with:
          account: user
          token: ${{ secrets.GITHUB_TOKEN }}
          image-names: ide
          cut-off: 1s
          keep-n-most-recent: 2