Use slim container variant

This reduces the size of the container, which makes working with it much easier

.gitlab-ci.yml

@@ -21,7 +21,7 @@ static:
     expire_in: 30 mins
 
 pip:
-  image: python:3.10
+  image: python:3.10-slim
   stage: build
   variables:
     PIP_CACHE_DIR: $CI_PROJECT_DIR/.pip-cache
@@ -29,6 +29,9 @@ pip:
     key: pip-$CI_COMMIT_REF_SLUG
     paths:
       - "$CI_PROJECT_DIR/.pip-cache"
+  before_script:
+    - apt-get update --yes
+    - apt-get install --yes build-essential libpq-dev
   script:
     - python -m venv env
     - source env/bin/activate
@@ -40,11 +43,12 @@ pip:
     expire_in: 30 mins
 
 .python_test_template:
-  image: python:3.10
+  image: python:3.10-slim
   stage: test
   dependencies:
     - pip
   before_script:
+    - apt-get update && apt-get install --yes git libpq-dev
     - source env/bin/activate
   variables:
     SECRET_KEY: super-secret
@@ -144,7 +148,7 @@ container:
   before_script:
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
   script:
-    - docker build -t website --target production -t $DEV_IMAGE_TAG .
+    - docker build --target production -t $DEV_IMAGE_TAG .
     - docker push $DEV_IMAGE_TAG
     - >
       if [ "$CI_COMMIT_REF_SLUG" == "master"]; then

Dockerfile

@@ -9,7 +9,7 @@ COPY ./static/src ./static/src
 RUN npm run build
 
 # The actual container
-FROM python:3.10 as production
+FROM python:3.10-slim as production
 
 ENV VIRTUAL_ENV=/venv
 
@@ -17,7 +17,12 @@ RUN useradd website --create-home -u 1000 && mkdir /app $VIRTUAL_ENV && chown -R
 
 WORKDIR /app
 
-RUN wget https://github.com/aptible/supercronic/releases/download/v0.2.1/supercronic-linux-amd64 -O /usr/local/bin/supercronic && chmod +x /usr/local/bin/supercronic
+RUN apt-get update --yes --quiet && apt-get install --yes --quiet --no-install-recommends \
+    build-essential \
+    libpq-dev \
+    curl
+
+RUN curl -fsSL https://github.com/aptible/supercronic/releases/download/v0.2.1/supercronic-linux-amd64 -o /usr/local/bin/supercronic && chmod +x /usr/local/bin/supercronic
 
 ENV PATH=$VIRTUAL_ENV/bin:$PATH \
     PYTHONUNBUFFERED=1
@@ -30,6 +35,8 @@ RUN python -m venv $VIRTUAL_ENV
 COPY --chown=website requirements/base.txt ./requirements/base.txt
 RUN pip install --no-cache --upgrade pip && pip install --no-cache -r ./requirements/base.txt
 
+RUN apt-get remove --yes build-essential && apt-get autoremove --yes && rm -rf /var/lib/apt/lists /var/cache/apt
+
 COPY --chown=website --from=frontend ./static/build ./static/build
 
 COPY --chown=website ./etc ./etc