Improved caching with Docker in CI

.github/actions/continuous-integration/load-cache/action.yml

@@ -0,0 +1,21 @@
+name: Load cache
+description: Loads the cached image in a post-cache continuous integration step
+runs:
+  using: "composite"
+  steps:
+    -
+      name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+    -
+      name: Load cache image
+      uses: docker/build-push-action@v6
+      with:
+        context: .
+        file: ./Dockerfile
+        build-args: |
+          RAILS_ENV=test
+        push: false
+        load: true
+        tags: app_test:latest
+        cache-from: type=gha
+        cache-to: type=gha,mode=min

.github/workflows/continuous-integration.yml

@@ -1,5 +1,7 @@
 # TODO: Enable GitHub Actions on the repository to test all pull requests
 # https://github.com/<org>/<repo>/actions
+name: CI Checks
+
 on:
   pull_request:
   push:
@@ -8,18 +10,77 @@ on:
       - develop
 
 jobs:
-  test:
+  lint-and-format:
+    name: Lint and format application
     runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Load cache
+        uses: ./.github/actions/continuous-integration/load-cache
+      -
+        name: Run Ruby standard
+        run: |
+          docker run --rm app_test:latest /bin/bash -c "bundle exec standardrb -f simple"
+      -
+        name: Run ESLint
+        run: |
+          docker run --rm app_test:latest /bin/bash -c "yarn run lint:js"
+      -
+        name: Run Stylelint
+        run: |
+          docker run --rm app_test:latest /bin/bash -c "yarn run lint:css"
+      -
+        name: Run Prettier
+        run: |
+          docker run --rm app_test:latest /bin/bash -c "yarn run lint:format"
 
-    env:
-      RAILS_ENV: test
-
+  static-analysis:
+    name: Static analysis
+    runs-on: ubuntu-latest
     steps:
-      - name: Check out code
+      -
+        name: Checkout
         uses: actions/checkout@v4
+      -
+        name: Load cache
+        uses: ./.github/actions/continuous-integration/load-cache
+      -
+        name: Run Brakeman
+        run: |
+          docker run --rm app_test:latest /bin/bash -c "bundle exec brakeman -o /dev/stdout"
 
-      - name: Build
-        run: script/ci/cibuild
+  specs:
+    name: Specs and coverage
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Load cache
+        uses: ./.github/actions/continuous-integration/load-cache
+      -
+        name: Run RSpec and Simplecov
+        run: |
+          docker compose -p complete-app -f docker-compose.ci.yml \
+            run --name app_test test /bin/bash -c "bin/rails spec"
+      -
+        name: Shutdown containers
+        run: docker compose -p app_test down && docker compose -p app_test rm
 
-      - name: Test
-        run: script/ci/test
+  shellcheck:
+    name: Lint scripts
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Run Shellceck
+        run: |
+          for file in $(git ls-files script/*)
+          do shellcheck -x "$file"
+          done

Dockerfile

@@ -1,7 +1,7 @@
 # ------------------------------------------------------------------------------
 # Base
 # ------------------------------------------------------------------------------
-FROM ruby:3.3.6 as base
+FROM ruby:3.3.6 AS base
 LABEL org.opencontainers.image.authors="[email protected]"
 
 COPY .node-version .node-version
@@ -17,12 +17,12 @@ RUN \
   build-essential \
   libpq-dev
 
-ENV APP_HOME /srv/app
-ENV DEPS_HOME /deps
+ENV APP_HOME=/srv/app
+ENV DEPS_HOME=/deps
 
 ARG RAILS_ENV
-ENV RAILS_ENV ${RAILS_ENV:-production}
-ENV NODE_ENV ${RAILS_ENV:-production}
+ENV RAILS_ENV=${RAILS_ENV:-production}
+ENV NODE_ENV=${RAILS_ENV:-production}
 
 # ------------------------------------------------------------------------------
 # Dependencies
@@ -34,7 +34,7 @@ RUN apt-get update && apt-get install -y yarn
 WORKDIR ${DEPS_HOME}
 
 # Install Ruby dependencies
-ENV BUNDLE_GEM_GROUPS ${RAILS_ENV}
+ENV BUNDLE_GEM_GROUPS=${RAILS_ENV}
 
 COPY Gemfile ${DEPS_HOME}/Gemfile
 COPY Gemfile.lock ${DEPS_HOME}/Gemfile.lock
@@ -109,8 +109,8 @@ RUN \
 ARG CURRENT_GIT_SHA
 ARG TIME_OF_BUILD
 
-ENV CURRENT_GIT_SHA ${CURRENT_GIT_SHA}
-ENV TIME_OF_BUILD ${TIME_OF_BUILD}
+ENV CURRENT_GIT_SHA=${CURRENT_GIT_SHA}
+ENV TIME_OF_BUILD=${TIME_OF_BUILD}
 
 COPY ./docker-entrypoint.sh /
 RUN chmod +x /docker-entrypoint.sh
@@ -123,7 +123,7 @@ CMD ["bundle", "exec", "rails", "server"]
 # ------------------------------------------------------------------------------
 # Test
 # ------------------------------------------------------------------------------
-FROM web as test
+FROM web AS test
 
 RUN \
   apt-get update && \