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Updated helloworld-go by clarifying the `IP_ADDRESS` address. (#570) 

* Updated helloworld-go by clarifying the `IP_ADDRESS` address.

* Quick edit of the deploy steps
This commit is contained in:
Guang Ya Liu 2018-11-28 03:55:22 +08:00 committed by Knative Prow Robot
parent c41f9193e8
commit 26fb00f42a
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serving/samples/helloworld-go/README.md
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@ -1,8 +1,8 @@
# Hello World - Go sample
A simple web app written in Go that you can use for testing.
It reads in an env variable `TARGET` and prints "Hello ${TARGET}!". If
TARGET is not specified, it will use "World" as the TARGET.
It reads in an env variable `TARGET` and prints `Hello ${TARGET}!`. If
`TARGET` is not specified, it will use `World` as the `TARGET`.
## Prerequisites
@ -138,31 +138,43 @@ folder) you're ready to build and deploy the sample app.
* Network programming to create a route, ingress, service, and load balance for your app.
* Automatically scale your pods up and down (including to zero active pods).
1. To find the IP address for your service, use
`kubectl get svc knative-ingressgateway --namespace istio-system` to get the ingress IP for your
cluster. If your cluster is new, it may take sometime for the service to get asssigned
an external IP address.
1. Run the following command to find the external IP address for your service. The ingress IP for your
cluster is returned. If you just created your cluster, you might need to wait and rerun the command until
your service gets asssigned an external IP address.
```shell
kubectl get svc knative-ingressgateway --namespace istio-system
```
Example:
```shell
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
knative-ingressgateway LoadBalancer 10.23.247.74 35.203.155.229 80:32380/TCP,443:32390/TCP,32400:32400/TCP 2d
```
1. To find the URL for your service, use
```
1. Run the following command to find the domain URL for your service:
```shell
kubectl get ksvc helloworld-go --output=custom-columns=NAME:.metadata.name,DOMAIN:.status.domain
```
Example:
```shell
NAME DOMAIN
helloworld-go helloworld-go.default.example.com
```
1. Now you can make a request to your app to see the results. Replace
`{IP_ADDRESS}` with the address you see returned in the previous step.
1. Test your app by sending it a request. Use the following
`curl` command with the domain URL `helloworld-go.default.example.com` and `EXTERNAL-IP` address that you retrieved
in the previous steps:
```shell
curl -H "Host: helloworld-go.default.example.com" http://{IP_ADDRESS}
curl -H "Host: helloworld-go.default.example.com" http://{EXTERNAL_IP_ADDRESS}
```
Example:
```shell
curl -H "Host: helloworld-go.default.example.com" http://35.203.155.229
Hello World: Go Sample v1!
```