tuxmachine / k8s-playground

A small demo application to play around with on kubernetes

K8s playground

This is a small demo application to use as a playground for kubernetes. It contains 2 microservices and an API gateway.

Docs

The API is documented using Insomnia. See the public folder for more info.

Run locally

You can run the services without docker or kubernetes. First do a yarn install and then open a terminal window for each service.

yarn run start:api
yarn run start:auth
yarn run start:pokedex

Run in Kubernetes

./kube.sh install # Follow instructions at end of install
./kube.sh build
./kube.sh create

Assignments

1. Get the other two microservices running in the cluster
2. Attach a larger pokedex.json to the pokedex service
3. Configure the HPA to use scale using a different metric
4. Supply the users.json via a Kubernetes Secret
5. Make the Kubernetes config files generic for each service by using variables ({NAMESPACE} and {APP_NAME}) and doing a sed replacement before applying them
6. Create a CI/CD script that automatically deploys this application to your cluster

Acknowledgements

This project uses the pokedex data made available by Zeyi Fan at https://github.com/fanzeyi/pokemon.json as well as plenty of other open-source projects (as evidenced by the dependencies :)