feat/ci/cache-docker-layers

Author: codespearhead

.github/workflows/ci.yml

@@ -106,7 +106,7 @@ jobs:
           poetry run python tasks/format.py --dry-run
 
   test:
-    timeout-minutes: 3
+    timeout-minutes: 6
     runs-on: ubuntu-latest
     needs: [look_for_source_code_changes, lint]
     if: needs.look_for_source_code_changes.outputs.run_tests == 'true'
@@ -115,6 +115,18 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v6
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+
+      - name: Build API image with cache
+        uses: docker/build-push-action@v7
+        with:
+          context: .
+          load: true
+          tags: flask_api:ci
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
       - name: Start Docker Compose
         run: docker compose up -d
 

Dockerfile

@@ -3,7 +3,9 @@ FROM python:3.14.3-trixie AS python
 
 FROM python AS python_with_libreoffice
 
-RUN apt-get update && \
+RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
+    --mount=type=cache,target=/var/lib/apt,sharing=locked \
+    apt-get update && \
     apt-get --no-install-recommends install libreoffice -y && \
     apt-get install -y libreoffice-java-common default-jre
 

docker-compose.yml

@@ -1,5 +1,6 @@
 services:
   api:
+    image: flask_api:ci
     container_name: "flask_api"
     environment:
       POETRY_VIRTUALENVS_CREATE: "false"