LoadBalancer Service

As Deployment resources took care of deployments for us. Service resource will take care of serving the application to connections from outside of the cluster.

Requirements:

• You have an account on Cloudify.ro *Register
• You have created a Cloudify.ro Kubernetes Cluster *Create Cluster
• You have downloaded the corresponding kubeconfig file and kubectl is working *Authentication

Deploy an Application

The deployment is an alpine-test image.

$ kubectl apply -f deployment.yml

apiVersion: apps/v1kind: Deploymentmetadata:  name: hostname-echo-deploymentspec:  replicas: 1  selector:    matchLabels:      app: hostname-echo  template:    metadata:      labels:        app: hostname-echo    spec:      containers:        - image: "lingxiankong/alpine-test"          imagePullPolicy: Always          name: hostname-echo-container          ports:            - containerPort: 8080

$ kubectl get deployments            NAME                       READY   UP-TO-DATE   AVAILABLE   AGEhostname-echo-deployment   1/1     1            1           41s

Deploy LoadBalancer Service

$ kubectl apply -f service.yml

apiVersion: v1kind: Servicemetadata:  name: hostname-echo-svcspec:  ports:     -  port: 8080        protocol: TCP        targetPort: 8080  selector:    app: hostname-echo  type: LoadBalancer

The output should show:

$ kubectl get services

NAME                TYPE           CLUSTER-IP       EXTERNAL-IP      PORT(S)          AGEhostname-echo-svc   LoadBalancer   10.254.172.232   <floating-ip>        8080:31521/TCP   5m12s`

In your Cloudify.ro account will be added an Octavia LoadBalancer for Kubernetes LoadBalancer Service and a floating IP for external IP.

Test the connection:

$ curl <floating-ip>:8080hostname-echo-deployment-5b4b888787-mmlkg