Day 32 Task: Launching your Kubernetes Cluster with Deployment

I have created an deployment file for nginx directly and exposed port with help of service in Kubernetes

To create deployment file with help of image directly

kubectl create deployment my-nginx --image=nginx:latest

Checked deployment file and pod:

kubectl get deployments
kubectl get pod

Now with help of service called “load Balancer” we will expose over Port 80.

kubectl expose deployment my-nginx --port=80 --type=LoadBalancer

If the service is configured as a NodePort, you can access it using the cluster node's IP address and the NodePort
```
 kubectl get svc my-nginx
```
Look for the PORT(S) column, which will show something like 80:30001/TCP. The 30001 is the NodePort.
Access the service using the host's IP:
```
 http://<node-ip>:<NodePort>
```

For Kind, the Node IP is typically localhost or 127.0.0.1.

To access a service running in your Kind cluster:

Forward a local port to the service's port:

 kubectl port-forward svc/<service-name> <local-port>:<service-port> 
 kubectl port-forward svc/my-nginx 8080:80

For deployment you can also use the deployment.yml file

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80

Best Approach for Kind:

For local development, port-forwarding is the quickest and easiest method.
For external access or multiple developers, using NodePort or MetalLB is more suitable.