name: Build Indiekit Docker container

on:
  push:
    branches: ["main"]
    paths:
      - indiekit/**
      - .github/workflows/indiekit-docker.yml

  workflow_dispatch:

concurrency:
  group: "indiekit"
  cancel-in-progress: true

defaults:
  run:
    shell: bash

jobs:
  image-releaser:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      attestations: write
      id-token: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Log into GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Extract metadata for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/by-jp/www.byjp.me
      - name: Build and push Docker image
        id: push
        uses: docker/build-push-action@v6
        with:
          context: ./indiekit
          file: ./indiekit/Dockerfile
          push: true
          tags: ghcr.io/by-jp/www.byjp.me:indiekit
          labels: ${{ steps.meta.outputs.labels }}
      - name: Generate artifact attestation
        uses: actions/attest-build-provenance@v1
        with:
          subject-name: ghcr.io/by-jp/www.byjp.me
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: true