hiring-test

The hiring test consists of an assignment where you work on the containerization of a Django app and write a helm chart for it.

Delivering the test results

You will need to create a new branch within this project. All the required changes need to be done within this newly created branch.

When you are done commit and push your changes and open a MR (Merge Request) and let us know via email that you are done with the test.

Test documentation

You will need to document which steps and/or commands are needed to run your test.
Please write this documentation within the DOCS.md file.

Containerization of the Django app

You will need to containerize the provided Django app.
The provided Dockerfile needs to be used as a starting point.

Make sure that the required python packages are installed as listed within the requirements.txt file.

Required environment variables

For the Django app to run correctly the following environment variables are required:

• SECRET_KEY
• DEBUG
• DATABASE_NAME
• DATABASE_USER
• DATABASE_PASSWORD
• DATABASE_HOST
• DATABASE_PORT

Make sure to set these to the correct values.

Running database migrations

The following command shows howto run the Django database migrations:

python manage.py migrate

Serving the app

The following command shows you howto run the Django app:

gunicorn --bind 0.0.0.0:8080 --access-logfile - app.wsgi:application

Helm chart for the Django app

Within the hiring-test-helm-chart directory you will find a Helm chart that should be used as a starting point.
You will need to change this Helm chart so it supports the following requirements:

• The container runs as non-root.
• A Readiness Probe is used.
• A Liveness probe is used.
• The application should be highly available.
• The application should be deployed with zero downtime.
• The Django migrations need to run only once and before the Django app is started.
• Set CPU request to 1 CPU or below.
• Memory limit equals memory requests and they should be set to a sane value.
• PostgreSQL is a dependency for this Helm chart as the Django app requires it.
• Labels should be set according to:
  • https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/#labels

Minikube

Use minikube to create a local kubernetes cluster.
The helm chart should be able to be installed onto the kubernetes cluster using the following command:

helm upgrade --install --wait ...

The app should then be reachable via the minikube service command.