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Merge pull request #41001 from Zhuzhenghao/expose-external-ip-address 

Cleanup page expose-external-ip-address
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Kubernetes Prow Robot 2023-05-08 02:29:18 -07:00 committed by GitHub
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@ -46,116 +46,116 @@ external IP address.
1. Display information about the Deployment: 1. Display information about the Deployment:
```shell ```shell
kubectl get deployments hello-world kubectl get deployments hello-world
kubectl describe deployments hello-world kubectl describe deployments hello-world
``` ```
1. Display information about your ReplicaSet objects: 1. Display information about your ReplicaSet objects:
```shell ```shell
kubectl get replicasets kubectl get replicasets
kubectl describe replicasets kubectl describe replicasets
``` ```
1. Create a Service object that exposes the deployment: 1. Create a Service object that exposes the deployment:
```shell ```shell
kubectl expose deployment hello-world --type=LoadBalancer --name=my-service kubectl expose deployment hello-world --type=LoadBalancer --name=my-service
``` ```
1. Display information about the Service: 1. Display information about the Service:
```shell ```shell
kubectl get services my-service kubectl get services my-service
``` ```
The output is similar to: The output is similar to:
```console ```console
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
my-service LoadBalancer 10.3.245.137 104.198.205.71 8080/TCP 54s my-service LoadBalancer 10.3.245.137 104.198.205.71 8080/TCP 54s
``` ```
{{< note >}} {{< note >}}
The `type=LoadBalancer` service is backed by external cloud providers, which is not covered in this example, please refer to [this page](/docs/concepts/services-networking/service/#loadbalancer) for the details. The `type=LoadBalancer` service is backed by external cloud providers, which is not covered in this example, please refer to [this page](/docs/concepts/services-networking/service/#loadbalancer) for the details.
{{< /note >}} {{< /note >}}
{{< note >}} {{< note >}}
If the external IP address is shown as \<pending\>, wait for a minute and enter the same command again. If the external IP address is shown as \<pending\>, wait for a minute and enter the same command again.
{{< /note >}} {{< /note >}}
1. Display detailed information about the Service: 1. Display detailed information about the Service:
```shell ```shell
kubectl describe services my-service kubectl describe services my-service
``` ```
The output is similar to: The output is similar to:
```console ```console
Name: my-service Name: my-service
Namespace: default Namespace: default
Labels: app.kubernetes.io/name=load-balancer-example Labels: app.kubernetes.io/name=load-balancer-example
Annotations: <none> Annotations: <none>
Selector: app.kubernetes.io/name=load-balancer-example Selector: app.kubernetes.io/name=load-balancer-example
Type: LoadBalancer Type: LoadBalancer
IP: 10.3.245.137 IP: 10.3.245.137
LoadBalancer Ingress: 104.198.205.71 LoadBalancer Ingress: 104.198.205.71
Port: <unset> 8080/TCP Port: <unset> 8080/TCP
NodePort: <unset> 32377/TCP NodePort: <unset> 32377/TCP
Endpoints: 10.0.0.6:8080,10.0.1.6:8080,10.0.1.7:8080 + 2 more... Endpoints: 10.0.0.6:8080,10.0.1.6:8080,10.0.1.7:8080 + 2 more...
Session Affinity: None Session Affinity: None
Events: <none> Events: <none>
``` ```
Make a note of the external IP address (`LoadBalancer Ingress`) exposed by Make a note of the external IP address (`LoadBalancer Ingress`) exposed by
your service. In this example, the external IP address is 104.198.205.71. your service. In this example, the external IP address is 104.198.205.71.
Also note the value of `Port` and `NodePort`. In this example, the `Port` Also note the value of `Port` and `NodePort`. In this example, the `Port`
is 8080 and the `NodePort` is 32377. is 8080 and the `NodePort` is 32377.
1. In the preceding output, you can see that the service has several endpoints: 1. In the preceding output, you can see that the service has several endpoints:
10.0.0.6:8080,10.0.1.6:8080,10.0.1.7:8080 + 2 more. These are internal 10.0.0.6:8080,10.0.1.6:8080,10.0.1.7:8080 + 2 more. These are internal
addresses of the pods that are running the Hello World application. To addresses of the pods that are running the Hello World application. To
verify these are pod addresses, enter this command: verify these are pod addresses, enter this command:
```shell ```shell
kubectl get pods --output=wide kubectl get pods --output=wide
``` ```
The output is similar to: The output is similar to:
```console ```console
NAME ... IP NODE NAME ... IP NODE
hello-world-2895499144-1jaz9 ... 10.0.1.6 gke-cluster-1-default-pool-e0b8d269-1afc hello-world-2895499144-1jaz9 ... 10.0.1.6 gke-cluster-1-default-pool-e0b8d269-1afc
hello-world-2895499144-2e5uh ... 10.0.1.8 gke-cluster-1-default-pool-e0b8d269-1afc hello-world-2895499144-2e5uh ... 10.0.1.8 gke-cluster-1-default-pool-e0b8d269-1afc
hello-world-2895499144-9m4h1 ... 10.0.0.6 gke-cluster-1-default-pool-e0b8d269-5v7a hello-world-2895499144-9m4h1 ... 10.0.0.6 gke-cluster-1-default-pool-e0b8d269-5v7a
hello-world-2895499144-o4z13 ... 10.0.1.7 gke-cluster-1-default-pool-e0b8d269-1afc hello-world-2895499144-o4z13 ... 10.0.1.7 gke-cluster-1-default-pool-e0b8d269-1afc
hello-world-2895499144-segjf ... 10.0.2.5 gke-cluster-1-default-pool-e0b8d269-cpuc hello-world-2895499144-segjf ... 10.0.2.5 gke-cluster-1-default-pool-e0b8d269-cpuc
``` ```
1. Use the external IP address (`LoadBalancer Ingress`) to access the Hello 1. Use the external IP address (`LoadBalancer Ingress`) to access the Hello
World application: World application:
```shell ```shell
curl http://<external-ip>:<port> curl http://<external-ip>:<port>
``` ```
where `<external-ip>` is the external IP address (`LoadBalancer Ingress`) where `<external-ip>` is the external IP address (`LoadBalancer Ingress`)
of your Service, and `<port>` is the value of `Port` in your Service of your Service, and `<port>` is the value of `Port` in your Service
description. description.
If you are using minikube, typing `minikube service my-service` will If you are using minikube, typing `minikube service my-service` will
automatically open the Hello World application in a browser. automatically open the Hello World application in a browser.
The response to a successful request is a hello message: The response to a successful request is a hello message:
```shell ```shell
Hello Kubernetes! Hello Kubernetes!
``` ```
## {{% heading "cleanup" %}} ## {{% heading "cleanup" %}}