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Update getting started doc to use env vars (#247) 

Simplify the getting started example by setting environment
variables rather than asking the user to remember IP addresses
and host urls.
This commit is contained in:
Paul Czarkowski 2018-07-27 09:19:35 -05:00 committed by Google Prow Robot
parent 09dfac7cd5
commit 633e68912e
1 changed files with 5 additions and 9 deletions
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14
install/getting-started-knative-app.md
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@ -82,13 +82,9 @@ IP address created by Knative.
new, it can take sometime for the service to get asssigned an external IP address.
```shell
kubectl get svc knative-ingressgateway -n istio-system
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
export IP_ADDRESS=$(kubectl get svc knative-ingressgateway -n istio-system -o 'jsonpath={.status.loadBalancer.ingress[0].ip}')
```
Take note of the `EXTERNAL-IP` address.
> Note: if you use minikube or a baremetal cluster that has no external load balancer, the
@ -101,10 +97,9 @@ IP address created by Knative.
1. To find the host URL for your service, enter:
```shell
kubectl get services.serving.knative.dev helloworld-go -o=custom-columns=NAME:.metadata.name,DOMAIN:.status.domain
NAME DOMAIN
helloworld-go helloworld-go.default.example.com
export HOST_URL=$(kubectl get services.serving.knative.dev helloworld-go -o jsonpath='{.status.domain}')
```
If you changed the name from `helloworld-go` to something else when creating
the the `.yaml` file, replace `helloworld-go` in the above command with the
name you entered.
@ -118,9 +113,10 @@ IP address created by Knative.
request to interact with your application.
```shell
curl -H "Host: helloworld-go.default.example.com" http://${IP_ADDRESS}
curl -H "Host: ${HOST_URL}" http://${IP_ADDRESS}
Hello World: Go Sample v1!
```
It can take a few seconds for Knative to scale up your application and return
a response.