name: Publish Docker image for Render & Railway deployments

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

on:
  push:
    branches: ['render']
    paths-ignore:
      - '**.md'
      - 'cloud-deployments/*'
      - 'images/**/*'
      - '.vscode/**/*'
      - '**/.env.example'
      - '.github/ISSUE_TEMPLATE/**/*'
      - 'render.yaml'

jobs:
  push_to_registries:
    name: Push Docker image to DockerHub for use on Render or Railway deployments
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
    steps:
      - name: Check out the repo
        uses: actions/checkout@v4

      - name: Check if DockerHub build needed
        shell: bash
        run: |
          # Check if the secret for USERNAME is set (don't even check for the password)
          if [[ -z "${{ secrets.DOCKER_USERNAME }}" ]]; then
            echo "DockerHub build not needed"
            echo "enabled=false" >> $GITHUB_OUTPUT
          else
            echo "DockerHub build needed"
            echo "enabled=true" >> $GITHUB_OUTPUT
          fi
        id: dockerhub

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

      - name: Log in to Docker Hub
        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
        # Only login to the Docker Hub if the repo is mintplex/anythingllm, to allow for forks to build on GHCR
        if: steps.dockerhub.outputs.enabled == 'true' 
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
        with:
          images: |
            ${{ steps.dockerhub.outputs.enabled == 'true' && 'mintplexlabs/anythingllm' || '' }}
            ghcr.io/${{ github.repository }}
          tags: |
            type=raw,value=render
            type=raw,value=railway

      - name: Build and push multi-platform Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./docker/render.Dockerfile
          push: true
          platforms: linux/amd64
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            "STORAGE_DIR=/storage"