Implementing ClusterIP

ClusterIP is a simple type of Service exposed on an internal IP inside the cluster. This type of Service is not reachable from outside of the cluster. Let's take a look at the YAML file for our Service:

clusterip-service.yaml

apiVersion: v1
kind: Service
metadata:
  name: my-svc
Spec:
  type: ClusterIP
  selector:
    app: web-application
    environment: staging
  ports:
    - name: http
      protocol: TCP
      port: 80
      targetPort: 8080

As with other Kubernetes resources, we have our metadata block with our name value. As you can recall from our discussion on DNS, this name value is how you can access your Service from elsewhere in the cluster. For this reason, ClusterIP is a great option for Services that only need to be accessed by other Pods within...