Refactor Docker publish workflow; add multi-architecture support; cache build layers

.gitea/workflows/docker-publish.yml

@@ -23,25 +23,6 @@ jobs:
       OPENAI_TOKEN: "0"
     if: gitea.event_name != 'pull_request'
     steps:
-      - uses: https://github.com/actions/checkout@v4
-      - uses: https://github.com/docker/setup-qemu-action@v3
-      - uses: https://github.com/docker/setup-buildx-action@v3
-      - uses: https://github.com/astral-sh/ruff-action@v3
-
-      - run: docker build --check .
-      - run: ruff check --exit-non-zero-on-fix --verbose
-      - run: ruff format --check --verbose
-
-      - id: meta
-        uses: https://github.com/docker/metadata-action@v5
-        env:
-          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
-        with:
-          images: |
-            ghcr.io/thelovinator1/anewdawn
-            git.lovinator.space/thelovinator/anewdawn
-          tags: type=raw,value=latest,enable=${{ gitea.ref == format('refs/heads/{0}', 'master') }}
-
       # GitHub Container Registry
       - uses: https://github.com/docker/login-action@v3
         if: github.event_name != 'pull_request'
@@ -58,10 +39,51 @@ jobs:
           username: thelovinator
           password: ${{ secrets.PACKAGES_WRITE_GITEA_TOKEN }}
 
+      # Download the latest commit from the master branch
+      - uses: https://github.com/actions/checkout@v4
+
+      # Set up QEMU
+      - id: qemu
+        uses: https://github.com/docker/setup-qemu-action@v3
+        with:
+          image: tonistiigi/binfmt:master
+          platforms: linux/amd64,linux/arm64
+
+      # Set up Buildx so we can build multi-arch images
+      - uses: https://github.com/docker/setup-buildx-action@v3
+
+
+      # Install the latest version of ruff
+      - uses: https://github.com/astral-sh/ruff-action@v3
+        with:
+          version: "latest"
+
+      # Lint the Python code using ruff
+      - run: ruff check --exit-non-zero-on-fix --verbose
+
+      # Check if the Python code needs formatting
+      - run: ruff format --check --verbose
+      - run: docker build --check .
+
+      # Extract metadata (tags, labels) from Git reference and GitHub events for Docker
+      - id: meta
+        uses: https://github.com/docker/metadata-action@v5
+        env:
+          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
+        with:
+          images: |
+            ghcr.io/thelovinator1/anewdawn
+            git.lovinator.space/thelovinator/anewdawn
+          tags: type=raw,value=latest,enable=${{ gitea.ref == format('refs/heads/{0}', 'master') }}
+
+      # Build and push the Docker image
       - uses: https://github.com/docker/build-push-action@v6
         with:
           context: .
+          platforms: linux/amd64,linux/arm64
           push: ${{ gitea.event_name != 'pull_request' }}
           labels: ${{ steps.meta.outputs.labels }}
           tags: ${{ steps.meta.outputs.tags }}
           annotations: ${{ steps.meta.outputs.annotations }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 # check=error=true;experimental=all
-FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim@sha256:73c021c3fe7264924877039e8a449ad3bb380ec89214282301affa9b2f863c5d
+FROM --platform=$BUILDPLATFORM ghcr.io/astral-sh/uv:python3.13-bookworm-slim@sha256:73c021c3fe7264924877039e8a449ad3bb380ec89214282301affa9b2f863c5d
 
 # Change the working directory to the `app` directory
 WORKDIR /app