Add pre-commit image.

.gitlab-ci.yml

@@ -106,3 +106,20 @@ push-k8s:
   needs:
     - job: build-k8s
       artifacts: true
+
+# pre-commit image:
+
+build-pre-commit:
+  extends: .container-build
+  variables:
+    CONTEXT: images/pre-commit
+
+push-pre-commit:
+  extends: .container-push
+  variables:
+    CONTEXT: images/pre-commit
+    IMAGE: ci-images
+    TAG: pre-commit
+  needs:
+    - job: build-pre-commit
+      artifacts: true

images/pre-commit/.dockerignore

+*

images/pre-commit/Dockerfile

+FROM buildpack-deps:bullseye
+# hadolint ignore=DL3008,DL3013
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+        docker.io \
+        python3-dev \
+        python3-pip \
+        python3-setuptools \
+        python3-venv \
+    && \
+    python3 -m pip install --no-cache-dir --upgrade pip && \
+    python3 -m pip install --no-cache-dir \
+        docker-compose \
+        pipenv \
+        poetry \
+        pre_commit \
+        tox \
+    && \
+    rm -rf /root/.cache /tmp/* /var/tmp/* /var/lib/apt/lists/* /var/cache/apt/archives/*