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

Chapter 7 ■ Using Services
Creating a ClusterIP Service
In this section we shall create a service of type ClusterIP, which is the default service type. First, create a
deployment using the Docker image tutum/hello-world with three replicas:
./kubectl run hello-world --image=tutum/hello-world --replicas=3 --port=80
Next, list the deployments:
./kubectl get deployments
A hello-world deployment is created and listed as shown in Figure 7-4.
Figure 7-4. Creating and listing the deployments
List the pods:
./kubectl get pods
The three pod replicas are listed. Expose the deployment as a service of type ClusterIP, which is the
default, but may also be specified explicitly.
./kubectl expose deployment hello-world --port=80 --type=ClusterIP
List the services:
./kubectl get services
The hello-world service should be listed in addition to the kubernetes service and any other services,
as shown in Figure 7-5.
Figure 7-5. Creating and listing a service
156