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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:
```shell
kubectl get deployments hello-world
kubectl describe deployments hello-world
```
```shell
kubectl get deployments hello-world
kubectl describe deployments hello-world
```
1. Display information about your ReplicaSet objects:
```shell
kubectl get replicasets
kubectl describe replicasets
```
```shell
kubectl get replicasets
kubectl describe replicasets
```
1. Create a Service object that exposes the deployment:
```shell
kubectl expose deployment hello-world --type=LoadBalancer --name=my-service
```
```shell
kubectl expose deployment hello-world --type=LoadBalancer --name=my-service
```
1. Display information about the Service:
```shell
kubectl get services my-service
```
```shell
kubectl get services my-service
```
The output is similar to:
The output is similar to:
```console
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
my-service LoadBalancer 10.3.245.137 104.198.205.71 8080/TCP 54s
```
```console
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
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:
```shell
kubectl describe services my-service
```
```shell
kubectl describe services my-service
```
The output is similar to:
The output is similar to:
```console
Name: my-service
Namespace: default
Labels: app.kubernetes.io/name=load-balancer-example
Annotations: <none>
Selector: app.kubernetes.io/name=load-balancer-example
Type: LoadBalancer
IP: 10.3.245.137
LoadBalancer Ingress: 104.198.205.71
Port: <unset> 8080/TCP
NodePort: <unset> 32377/TCP
Endpoints: 10.0.0.6:8080,10.0.1.6:8080,10.0.1.7:8080 + 2 more...
Session Affinity: None
Events: <none>
```
```console
Name: my-service
Namespace: default
Labels: app.kubernetes.io/name=load-balancer-example
Annotations: <none>
Selector: app.kubernetes.io/name=load-balancer-example
Type: LoadBalancer
IP: 10.3.245.137
LoadBalancer Ingress: 104.198.205.71
Port: <unset> 8080/TCP
NodePort: <unset> 32377/TCP
Endpoints: 10.0.0.6:8080,10.0.1.6:8080,10.0.1.7:8080 + 2 more...
Session Affinity: None
Events: <none>
```
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.
Also note the value of `Port` and `NodePort`. In this example, the `Port`
is 8080 and the `NodePort` is 32377.
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.
Also note the value of `Port` and `NodePort`. In this example, the `Port`
is 8080 and the `NodePort` is 32377.
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
addresses of the pods that are running the Hello World application. To
verify these are pod addresses, enter this command:
```shell
kubectl get pods --output=wide
```
```shell
kubectl get pods --output=wide
```
The output is similar to:
The output is similar to:
```console
NAME ... IP NODE
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-2895499144-9m4h1 ... 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-segjf ... 10.0.2.5 gke-cluster-1-default-pool-e0b8d269-cpuc
```
```console
NAME ... IP NODE
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-2895499144-9m4h1 ... 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-segjf ... 10.0.2.5 gke-cluster-1-default-pool-e0b8d269-cpuc
```
1. Use the external IP address (`LoadBalancer Ingress`) to access the Hello
World application:
```shell
curl http://<external-ip>:<port>
```
```shell
curl http://<external-ip>:<port>
```
where `<external-ip>` is the external IP address (`LoadBalancer Ingress`)
of your Service, and `<port>` is the value of `Port` in your Service
description.
If you are using minikube, typing `minikube service my-service` will
automatically open the Hello World application in a browser.
where `<external-ip>` is the external IP address (`LoadBalancer Ingress`)
of your Service, and `<port>` is the value of `Port` in your Service
description.
If you are using minikube, typing `minikube service my-service` will
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
Hello Kubernetes!
```
```shell
Hello Kubernetes!
```
## {{% heading "cleanup" %}}