Below is a home assignment for a DevOps Engineer position. You are requested to:
- Understand the requirements and use case. You may contact the interviewer for further clarification.
- Implement and run your deployment plan for backend environment using the most efficient tools.
- Present your deployment and result in the next interview session.
You are a DevOps engineer in a project of building an online orders system. Your task is to deploy a prototype created by the development team and make it available on the public internet.
Below is the information given by the development team.
- Start a MongoDB instance, it should be reachable by the prototype code and the development team
- NodeJS LTS version
- Set environment variable
MONGODB_URL="<mongodb connection url>", where<mongodb connection url>must match the official mongodb node driver uri - Navigate to package(s) directory
cd packages/<package> - Build using npm
npm install - Start using node
node index.js
Your deployment must meet the following criteria:
- A working deployment which reachable through internet
- IaC (Infrastructure as Code) deployment for the created AWS resources. You may use Cloudformation, Terraform or AWS CDK for that purpose
- Documentation for the deployment plan and the resources created
- Your implementation should be commited to your own public git repository, including any IaC, documentation, etc (fork this repository)
- Create dockerfile to match the deployment requirements
- Create all resources using IaC tools
- Use Amazon Elastic Container Registry to push the image to a private repository
- Create a Kubernetes cluster and deploy the service to the cluster
- Create a MongoDB instance in the Kubernetes cluster (do not use any Mongo service such as DocumentDB) and make it reachable for the deployed service, update the
MONGODB_URLenvironment variable to match the mongodb connection url - Expose the service to the internet using AWS Load Balancer, AWS Elastic IP, and Network Interface
- Document the deployment steps and the resources created in the deployment as clear and detailed as possible
- Provide a publicly accessible URL of the service
Bonus points are optional, but will be considered as a plus if implemented. Please prioritize completing the main requirements before investing time in the bonus section. You may choose to implement one or more of the following:
- Supply the deployment with CI/CD automated process to push the image to ECR and deploy it to the cluster
- Monitor the service and handle recovery for different resources
- Maintain and handle the scaling of the service
- Maintain and handle high availability of the service according to best practices
- Secure the deployments according to best practices (rate limits, relevant security groups, etc)
- Consider multi-tenant and multi-environment deployment
- Documentation for disaster recovery plan
- Any other improvement that you think is relevant for this project
When evaluating the assignment, we will consider the following:
- The deployment plan and the resources are created and working as expected. We will trigger the API using the supplied URL and expect a valid response
- The documentation is clear and detailed, we will follow the documentation to understand the deployment process
- Best practices are followed across all functional and non-functional requirements (for example: security, cost optimization, reliability, etc)
- For performing the assignment, you will be given with AWS credentials (console and programmatic) to a dedicated account, DO NOT COMMIT THEM IN THE CODE
- Make sure to create small tier resources, as the prototype demands minimal working loads
- This assignment can be implemented in more than one way, if any further permissions are required for your implementation, contact us
- If you have any other questions, please do not hesitate to ask