3.x: github actions cache docker build (#9328)

cache misp docker container

.github/workflows/test.yml

@@ -8,6 +8,10 @@ on:
     branches:
       - 3.x
 
+env:
+  IMAGE_CACHE_DIR: /tmp/cache/docker-image
+  IMAGE_CACHE_KEY: cache-image
+
 jobs:
   test:
     timeout-minutes: 10
@@ -19,8 +23,29 @@ jobs:
         with:
           submodules: recursive
 
-      - name: Build test containers
-        run: docker-compose -f docker-compose.yml -f docker-compose.dev.yml --env-file="./docker/.env.test" build
+      - name: Get docker dir checksum
+        id: docker-dir-checksum
+        run: |
+          echo "SHA=$(find ./docker -type f -print0 | LC_ALL=C sort -z | xargs -0 shasum | shasum | head -c 40)" >> $GITHUB_OUTPUT
+
+      - name: Cache docker images
+        id: cache-docker-images
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.IMAGE_CACHE_DIR }}
+          key: 3.x-docker-images-test-${{ steps.docker-dir-checksum.outputs.SHA }}
+
+      - if: ${{ steps.cache-docker-images.outputs.cache-hit != 'true' }}
+        name: Build test containers and save cache
+        run: |
+          docker-compose -f docker-compose.yml -f docker-compose.dev.yml --env-file="./docker/.env.test" build
+          mkdir -p ${{ env.IMAGE_CACHE_DIR }}
+          docker save -o ${{ env.IMAGE_CACHE_DIR }}/misp3-image.tar misp3/php:8.2-fpm
+
+      - if: ${{ steps.cache-docker-images.outputs.cache-hit == 'true' }}
+        name: Docker load cached image
+        run: |
+          docker load --input ${{ env.IMAGE_CACHE_DIR }}/misp3-image.tar
 
       - name: Run tests
         run: docker-compose -f docker-compose.yml -f docker-compose.dev.yml --env-file="./docker/.env.test" run misp

docker/misp/Dockerfile

@@ -14,7 +14,7 @@ COPY --from=composer /usr/bin/composer /usr/bin/composer
 
 # Install additional PHP extensions and system packages
 RUN apt-get -y update \
-    && apt-get install -y libicu-dev libpq-dev zip libzip-dev default-mysql-client gnupg supervisor \
+    && apt-get install -y libicu-dev libpq-dev zip libzip-dev default-mysql-client gnupg supervisor git sendmail sudo \
     && docker-php-ext-configure intl \
     && docker-php-ext-install intl pdo pdo_mysql mysqli zip \
     && apt-get remove -y --purge libicu-dev libzip-dev \
@@ -77,11 +77,11 @@ RUN pecl install -f xdebug pcov \
     && docker-php-ext-enable xdebug pcov
 
 # Install additional packages
-RUN apt-get update \
-    && apt-get install -y \
-    git sendmail sudo \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+# RUN apt-get update \
+#     && apt-get install -y \
+#     && <package> \
+#     && apt-get clean \
+#     && rm -rf /var/lib/apt/lists/*
 
 # Write Xdebug configuration
 RUN echo "xdebug.mode=debug" >> /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini \