Liquibase DevOps Homework
Please clone this repo. Do not fork unless you want others to potentially see your work.
Please ask questions. You can email me at jake@liquibase.com.
The assignment is to troubleshoot the app locally, build the infrastructure, and deploy it.
Please create a NOTES.md with your thought process, troubleshooting, and solutions. The goal here is not to "weed someone out" but rather to see your thought process when dealing with a typical DevOps-y day :)
Task 1 - Application
The application is a simple to-do list app. There are bugs that need to be fixed:
- The Dockerfile for the api (todo-api) is inefficient. Convert it to a multi-stage docker build and make it as efficient/small as possible. If done correctly the final image should be < 300 MB.
- The docker-compose file in the root of the project has 2 bugs. Fix them. You should be able to run a
docker-compose upto start the application. If the application is working you should be able to browse to http://localhost and create a to-do list.
Task 2 - Infrastructure Resources
The infrastructure should be written as code. Please create the following resources in the AWS free tier. Note that using existing public modules is perfectly acceptable:
- Elastic Load Balancer
- EC2 Instance
- Postgres RDS Database
- Any required security groups
Infrastructure Requirements
- The load balancer should only allow access to port 80.
- The EC2 instance should only allow access from the load balancer
- The database should only allow access from the EC2 instance
- We should be alerted if the ELB health check is not passing.
Task 3 - Application Deployment
Deploy your docker containers to the EC2 instance created above.
Task 4 - Production Database
- The database is currently a local postgres docker container. This is fine for local development, but not suitable for production. Make any necessary changes required to use the RDS Database you created instead.