#11431 Remove load balance access task (#11518)

2018-12-05 14:03:45 +01:00
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 title: Provide Load-Balanced Access to an Application in a Cluster
 content_template: templates/tutorial
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 ---
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 This page shows how to create a Kubernetes Service object that provides
 load-balanced access to an application running in a cluster.
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 {{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
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 * Run two instances of a Hello World application
 * Create a Service object
 * Use the Service object to access the running application
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 ## Creating a Service for an application running in two pods
 1. Run a Hello World application in your cluster:
       ```
       kubectl run hello-world --replicas=2 --labels="run=load-balancer-example" --image=gcr.io/google-samples/node-hello:1.0  --port=8080
       ```
 1. List the pods that are running the Hello World application:
       ```
       kubectl get pods --selector="run=load-balancer-example"
       ```
    The output is similar to this:
       ```
       NAME                           READY     STATUS    RESTARTS   AGE
       hello-world-2189936611-8fyp0   1/1       Running   0          6m
       hello-world-2189936611-9isq8   1/1       Running   0          6m
       ```
 1. Create a Service object that exposes the deployment:
       ```
       kubectl expose deployment <your-deployment-name> --type=NodePort --name=example-service
       ```
    where `<your-deployment-name>` is the name of your deployment.
 1. Display the IP addresses for your service:
       ```
       kubectl get services example-service
       ```
   The output shows the internal IP address and the external IP address of
   your service. If the external IP address shows as `<pending>`, repeat the
   command.
   {{< note >}}
   If you are using Minikube, you don't get an external IP address. The
   external IP address remains in the pending state.
   {{< /note >}}
       NAME             TYPE       CLUSTER-IP   EXTERNAL-IP   PORT(S)    AGE
       example-service  ClusterIP  10.0.0.160   <pending>     8080/TCP   40s
 1. Use your Service object to access the Hello World application:
       curl <your-external-ip-address>:8080
   where `<your-external-ip-address>` is the external IP address of your
   service.
   The output is a hello message from the application:
       Hello Kubernetes!
   {{< note >}}
   If you are using Minikube, enter these commands:
   {{< /note >}}
       kubectl cluster-info
       kubectl describe services example-service
   The output displays the IP address of your Minikube node and the NodePort
   value for your service. Then enter this command to access the Hello World
   application:
       curl <minikube-node-ip-address>:<service-node-port>
   where `<minikube-node-ip-address>` us the IP address of your Minikube node,
   and `<service-node-port>` is the NodePort value for your service.
 ## Using a service configuration file
 As an alternative to using `kubectl expose`, you can use a
 [service configuration file](/docs/concepts/services-networking/service/)
 to create a Service.
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 Learn more about
 [connecting applications with services](/docs/concepts/services-networking/connect-applications-service/).
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