🎯Day 34 - Working with Services in Kubernetes

🎯What are Services in K8s

In Kubernetes, Services are objects that provide stable network identities to Pods and abstract away the details of Pod IP addresses. Services allow Pods to receive traffic from other Pods, Services, and external clients.

🎯Task-1:

Create a Service for your todo-app Deployment from Day-32
Create a Service definition for your todo-app Deployment in a YAML file.

apiVersion: v1
kind: Service
metadata:
  name: node-app-service
  namespace: node-app-deployment
  labels:
    app: node-app
spec:
  type: NodePort
  selector:
    app: node-app
  ports:
    - port: 80
      targetPort: 8000
      nodePort: 30003

Apply the Service definition to your K8s (minikube) cluster using the kubectl apply -f service.yml -n <namespace-name> command.

Verify that the Service is working by accessing the todo-app using the Service's IP and Port in your Namespace.

🎯Task-2:

Create a ClusterIP Service for accessing the todo-app from within the cluster

Create a ClusterIP Service definition for your todo-app Deployment in a YAML file.

  apiVersion: v1
  kind: Service
  metadata:
    name : node-app-service
    namespace: node-app-deployment
  spec:
    selector:
      app: node-app
    ports:
      - port: 8000
        targetPort: 8000
    type: ClusterIP

Apply the ClusterIP Service definition to your K8s (minikube) cluster using the kubectl apply -f cluster-ip-service.yml -n <namespace-name> command.

Verify that the ClusterIP Service is working by accessing the todo-app from another Pod in the cluster in your Namespace.

🎯Task-3:

Create a LoadBalancer Service for accessing the todo-app from outside the cluster
Create a LoadBalancer Service definition for your todo-app Deployment in a YAML file.
```
   apiVersion: v1
  kind: Service
  metadata:
    name : node-app
    namespace: node-app-deployment
  spec:
    selector:
      app: node-app
    ports:
      - port: 8000
        targetPort: 8000
    type: LoadBalancer
```
- Apply the LoadBalancer Service definition to your K8s (minikube) cluster using the kubectl apply -f load-balancer-service.yml -n <namespace-name> command.