bdd-container-update

DevOps & Security

Update the BDD test container image when its dependencies or runtime change. Determines version bump (major vs minor vs patch), rebuilds the Docker image, pushes to GitLab registry, and updates the image tag in start_test.sh. Test source (tests/, features/, scripts/, data/, conftest.py) is bind-mounted from the host repo at runtime, so pure test code changes do NOT require a container rebuild. Use only when files that the container bakes in are modified: Dockerfile, docker-entrypoint.sh, pyproject.toml, poetry.lock.

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BDD Test Container Update

The BDD test container runs bdd_test from <INTERNAL_REGISTRY>/bdd_tests:<TAG>. Since the CI runner bind-mounts the host repo's test source into /app/, the image only needs to be rebuilt when the things it bakes in change.

When to rebuild

Rebuild required -- files baked into the image:

test/bdd_tests/Dockerfile
test/bdd_tests/docker-entrypoint.sh
test/bdd_tests/pyproject.toml (any change -- deps or pytest config)
test/bdd_tests/poetry.lock

Rebuild NOT required -- bind-mounted at runtime by cicd_files/docker-compose-test/start_test.sh:

test/bdd_tests/tests/**
test/bdd_tests/features/**
test/bdd_tests/scripts/**
test/bdd_tests/data/**
test/bdd_tests/conftest.py
test/bdd_tests/config.json

If a change touches only files in the second list, stop here -- no container work is needed and start_test.sh is unchanged.

1. Identify the current image tag

The image tag lives in cicd_files/docker-compose-test/start_test.sh inside the update_docker_compose() function, on the line that sets the test service image:

image: <INTERNAL_REGISTRY>/bdd_tests:v<MAJOR>.<MINOR>.<PATCH>_x86

Extract the current MAJOR, MINOR, and PATCH numbers.

2. Determine version bump

Classify the changes made under test/bdd_tests/:

Change type	Bump	Examples
Major	Increment MAJOR, reset MINOR and PATCH to 0	Dockerfile base image change, entrypoint rewrite, Python major version bump, dependency major version upgrade (e.g. poetry major), new system-level package added to Dockerfile
Minor	Increment MINOR, reset PATCH to 0	New runtime dependency in pyproject.toml, dependency minor version updates in pyproject.toml/poetry.lock, new pytest plugin in deps, additions to the Dockerfile that do not break existing tests
Patch	Increment PATCH	Dependency patch upgrades, minor Dockerfile cleanup, comment-only edits to Dockerfile/entrypoint, pinning a transitive dependency in poetry.lock

When in doubt between major and minor, prefer minor. When in doubt between minor and patch, prefer patch.

3. Build the new container image

cd test/bdd_tests
docker build -t <INTERNAL_REGISTRY>/bdd_tests:v<NEW_VERSION>_x86 .

Replace <NEW_VERSION> with the computed MAJOR.MINOR.PATCH.

4. Push to GitLab registry

docker push <INTERNAL_REGISTRY>/bdd_tests:v<NEW_VERSION>_x86

Ensure you are logged in to the GitLab registry first:

docker login <INTERNAL_REGISTRY>

5. Update the image tag in start_test.sh

In cicd_files/docker-compose-test/start_test.sh, locate the line inside the update_docker_compose() function:

image: <INTERNAL_REGISTRY>/bdd_tests:v<OLD_VERSION>_x86

Replace <OLD_VERSION> with <NEW_VERSION>.

Only this one line needs to change. Do not modify any other part of the file.

6. Summary

After completing the update, report:

Previous tag: v<OLD_VERSION>_x86
New tag: v<NEW_VERSION>_x86
Bump type: major / minor / patch
Reason: one-line description of why that bump level was chosen
Files changed:
- cicd_files/docker-compose-test/start_test.sh (image tag)

Quick reference

Item	Value
Registry	`<INTERNAL_REGISTRY>/bdd_tests`
Tag format	`v<MAJOR>.<MINOR>.<PATCH>_x86`
Dockerfile	`test/bdd_tests/Dockerfile`
Tag location	`cicd_files/docker-compose-test/start_test.sh` -- `update_docker_compose()` function
Container name	`bdd_test`
Bind-mount source dir	`test/bdd_tests/` -> `/app/` (subdirs mounted, `.venv` and deps preserved)