https://github.com/vs4vijay/kubernetes-world
Kubernetes Playground
https://github.com/vs4vijay/kubernetes-world
devops docker express kubectl kubernetes nodejs
Last synced: 6 days ago
JSON representation
Kubernetes Playground
- Host: GitHub
- URL: https://github.com/vs4vijay/kubernetes-world
- Owner: vs4vijay
- Created: 2019-09-13T09:35:49.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2026-02-15T18:43:39.000Z (about 2 months ago)
- Last Synced: 2026-02-16T00:54:15.077Z (about 2 months ago)
- Topics: devops, docker, express, kubectl, kubernetes, nodejs
- Language: JavaScript
- Homepage:
- Size: 1.12 MB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 19
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Kubernetes World
An application to try out end-to-end Kubernetes flow and deployment, This includes Docker, NodeJS, Express, MySQL, Kubernetes.
## Running
### Run without Docker
- `npm install`
- `node app.js`
- `nodemon app.js`
### Run with Docker
- `docker build -t kube-world .`
- `docker run -p 9999:9999 kube-world`
### Run with Kubernetes
- `brew install kubernetes-cli`
- `brew cask install minikube`
- `minikube start`
---
## Push image to registry
- `docker build -t vs4vijay/kube-world .`
- `docker login`
- `docker push vs4vijay/kube-world`
---
## Kubernetes Deployment
```
kubectl apply -f deploy/secret.yml
kubectl create -f deploy/persistent-volume.yml
kubectl create -f deploy/db-deployment.yml
kubectl create -f deploy/db-service.yml
kubectl create -f deploy/service.yml
kubectl create -f deploy/deployment.yml
kubectl get pods
minikube ssh
OR
kubectl run kube-world --replicas=1 --labels="run=kube-world" --image=vs4vijay/kube-world --port=9999
```
---
## Screenshots
---
## Create DB User
```
CREATE DATABASE viz_db;
CREATE USER 'viz'@'%' IDENTIFIED WITH mysql_native_password BY '123456';
GRANT ALL PRIVILEGES ON viz_db.* TO 'viz'@'%';
FLUSH PRIVILEGES;
```
---
## To Do
- [x] Basic Node + Express + DB App
- [x] Dockerize
- [ ] Run as non-root user
- [ ] Multistage Build
- [x] Kubernetes
- [x] Have MySQL
- [x] Configure App to connect to MySQL
- [x] Create Secrets to pick env. variables
- [ ] Make Kube-World App Dependent on MySQL
- [ ] Deploy to Cloud
- [ ] nginx
- [ ] Code
- [ ] Connection Pooling
- [ ] Validation and Error Frameworks
- [ ] Enhance the code structure and decouple
## Development Notes
```
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
mysql.createPool({
connectionLimit : 10,
...
})
connection.release();
query.sql
- npm ci --only=production
docker system prune -a
https://expressjs.com/en/api.html#router.param
brew install bash-completion
source <(kubectl completion bash)
docker pull mysql/mysql-server:latest
docker logs -- check logs for pwd
docker ps -a -q
COPY --from=0 /app .
NODE_ENV
kubectl describe pod
livenessProbe
resources:
limits:
cpu: "1"
requests:
cpu: "0.5"
helm
kubectl get secret
kubectl describe secret kube-world-secrets
PersistentVolumeClaim for DB
kubectl port-forward app-mysql-3323704556-nce3w 3306:3306
kubectl create ns wordpress-example
..svc.cluster.local
echo -n viz | base64
kubectl scale deployment --replicas
kubectl scale deployment --replicas=0 -n service
kubectl exec POD_NAME -c CONTAINER_NAME reboot
kubectl exec -i [pod name] -c [container-name] -- kill -15 5
kubectl get pv
minikube service list
Access Service via DNS Name
Access Service via Load Balancer
Access Service from Host
Access Service from Cluster
```