ClusterIP --> The default service type, accessible only within the cluster. It's used for internal communication between services.
For example, communication between the front-end and back-end components of your application.
Create a 3 file
- nginx-pod.yml
- nginx-deployment.yml
- nginx-svc.yml
apiVersion: v1 kind: Pod metadata: name: nginx-pod spec: containers: - image: nginx name: nginx-ctr Execute the pod
kubectl apply -f nginx-pod.yml kubectl get pods 
Get the pod full details
kubectl get pods -o wide 
Create a deployment file
apiVersion: apps/v1 kind: Deployment metadata: name: nginx-deployment spec: replicas: 2 selector: matchLabels: app: nginx template: metadata: labels: app: nginx spec: containers: - image: nginx name: nginx-ctr Execute the deployment file
kubectl apply -f nginx-deployment.yml kubectl get pods 
Create a service file
apiVersion: v1 kind: Service metadata: name: nginx-svc spec: selector: app: nginx ports: - name: nginx-port protocol: TCP port: 32767 targetPort: 80 
Get the full information on pods
kubectl get all 
Get the pod IP address
kubectl get pods -o wide (or) kubectl get endpoints 
POD → 1
POD → 2
Login to the container and change the Nginx file
kubectl -it exec nginx-deployment-7bb9945d7c-75nc5 -- /bin/sh 
Get the services IP
kubectl get svc 
Automatically load balancing selected
Accessible only within the cluster → ClusterIP → Internal load balancer.
Cluster IP service identifies pods using the selector → How pods are identified.
Target port helps in identifying pod port → how port is identified.
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