build: cache installed packages

Author: ProgramRipper

.github/workflows/deploy-image.yml

@@ -9,8 +9,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
-
       - name: Log in to the Container registry
         uses: docker/login-action@v3
         with:
@@ -24,10 +22,14 @@ jobs:
         with:
           images: ${{ vars.DOCKER_REGISTRY }}/${{ vars.DOCKER_IMAGE_NAME }}
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Build and push Docker image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
-          context: .
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Dockerfile

@@ -1,19 +1,21 @@
-FROM python:slim as base
+FROM python:slim AS base
 WORKDIR /app
 ENV PATH=.venv/bin:${PATH}
 
 
 FROM base AS build
 ENV PDM_CHECK_UPDATE=false
 
-RUN pip install pdm
-COPY pyproject.toml pdm.lock ./
-RUN pdm sync --prod --no-editable
+RUN pip install --no-cache-dir pdm
+RUN --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
+    --mount=type=bind,source=pdm.lock,target=pdm.lock \
+    --mount=type=cache,target=/root/.cache/pdm \
+    pdm sync --prod --no-editable
 
 
 FROM base
 
-COPY --from=build /app/.venv/ .venv
-COPY . .
+COPY --link --from=build /app/.venv/ .venv
+COPY --link . .
 
 CMD nb orm upgrade && nb run