feat: add commitlint image

.gitlab-ci.yml

@@ -356,3 +356,12 @@ pre-commit-3.3:
     PRE_COMMIT_VERSION: "3.3.2"
     ENVSUBST_DOCKERFILE: "True"
     WHEN_TO_RUN: "weekly"
+
+commitlint:
+  extends: .build_and_push
+  variables:
+    IMAGE_TYPE: commitlint
+    IMAGE_NAME: commitlint
+    TAGS: latest
+    NODE_VERSION: 18-slim
+    WHEN_TO_RUN: "weekly"

README.md

@@ -13,6 +13,7 @@ The following image types are built. See the README files in each image's
 directory for more details.
 
 * [ansible-playbook](ansible-playbook/README.md)
+* [commitlint](commitlint/README.md)
 * [python-alpine](python-alpine/README.md)
 * [python-slim](python-slim/README.md)
 * [django](python-alpine/README.md)

commitlint/.commitlintrc

+extends:
+  - "@commitlint/config-conventional"

commitlint/Dockerfile

+ARG NODE_VERSION
+FROM node:${NODE_VERSION}-alpine
+
+RUN apk add --no-cache git bash
+
+RUN npm install -g @commitlint/cli @commitlint/config-conventional
+
+ADD .commitlintrc /opt/devops/

commitlint/README.md

+# Docker image containing commitlint tool
+
+This docker image contains the commitlint tool and a default `.commitlintrc`
+file. The image is primarily to be used in GitLab CI pipelines.
+
+The default `.commitlintrc` file is saved to `/opt/devops/.commitlintrc` and our
+`commitlint.yml` CI template will use this config if one is not present in the
+root of the git repo.