148422597X Kubernetes Management Design Patterns [Vohra 2017-01-29] {E559F6BB}

Chapter 2 ■ Kubernetes on CoreOS on AWS
List the nodes:
kubectl get nodes
The single controller node and the three worker nodes are listed as shown in Figure 2-21.
Figure 2-21. Listing the Kubernetes cluster nodes
Testing the Cluster
To test the cluster, run some example application, such as the nginx server. Run three pod replicas of the
nginx application:
./kubectl -s http://localhost:8080 run nginx --image=nginx -replicas=3 --port=80
List the replication controllers:
./kubectl get rc
List the services:
./kubectl get services
List the deployments:
./kubectl get deployments
List the pods:
./kubectl get pods
Create a service for the nginx deployment:
./kubectl expose deployment nginx --port=80 --type=LoadBalancer
List the services again, and the nginx service should be listed:
./kubectl get services
Figure 2-22 shows the output from the preceding commands.
41