vrc-ytdlp-resolver/.github/workflows/docker-publish.yml

name: Build & Publish Docker image to Docker Hub

on:
  push:
    branches: [ "main" ]
    tags:
      - "v*"
  workflow_dispatch:

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

env:
  # Change this if your Docker Hub namespace differs from your username
  DOCKERHUB_NAMESPACE: ${{ secrets.DOCKERHUB_USERNAME }}
  IMAGE_NAME: vrc-ytdlp-resolver
  PLATFORMS: linux/amd64,linux/arm64

jobs:
  docker:
    name: Build & Push
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

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

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract Docker metadata (tags, labels)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.DOCKERHUB_NAMESPACE }}/${{ env.IMAGE_NAME }}
          tags: |
            # latest for main branch
            type=raw,value=latest,enable={{is_default_branch}}
            # git sha
            type=sha
            # semver tags like v1.2.3 -> 1.2.3, 1.2, 1
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}

      - name: Build & Push (multi-arch)
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          push: true
          platforms: ${{ env.PLATFORMS }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max