docker-image.yml

name: Build and Push Docker Image

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

env:
  REGISTRY: ghcr.io

jobs:
  build:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

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

      - name: Read Nextcloud version
        id: nextcloud_version
        run: |
          version=$(grep -m1 '^NEXTCLOUD_VERSION=' .env.example | cut -d= -f2-)
          if [ -z "$version" ]; then
            echo "NEXTCLOUD_VERSION is missing from .env.example" >&2
            exit 1
          fi
          echo "value=$version" >> "$GITHUB_OUTPUT"

      - name: Normalize repository name
        id: repo_name
        run: echo "value=${GITHUB_REPOSITORY,,}" >> "$GITHUB_OUTPUT"

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

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

      - name: Build app image
        uses: docker/build-push-action@v6
        with:
          context: .docker/app
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name == 'push' }}
          build-args: |
            NEXTCLOUD_VERSION=${{ steps.nextcloud_version.outputs.value }}
          tags: ${{ env.REGISTRY }}/${{ steps.repo_name.outputs.value }}-app:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Build web image
        uses: docker/build-push-action@v6
        with:
          context: .docker/web
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name == 'push' }}
          tags: ${{ env.REGISTRY }}/${{ steps.repo_name.outputs.value }}-web:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max