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Get pods using a label selector instead of hardcoded indexes. Use JsonPath instead of go-template.

reviewable/pr4160/r1^2
Jonas Kongslund 2017-05-14 14:26:44 +04:00 committed by Andrew Chen
parent 4d89c1421b
commit f2f0842e1f
1 changed files with 8 additions and 8 deletions
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16
docs/tutorials/stateful-application/basic-stateful-set.md
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@ -491,10 +491,10 @@ web-0 1/1 Running 0 3s
Get the Pods to view their container images.
```shell{% raw %}
for p in 0 1 2; do kubectl get po web-$p --template '{{range $i, $c := .spec.containers}}{{$c.image}}{{end}}'; echo; done
gcr.io/google_containers/nginx-slim:0.7
gcr.io/google_containers/nginx-slim:0.8
gcr.io/google_containers/nginx-slim:0.8
kubectl get pod -l app=nginx -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.containers[0].image}{"\n"}{end}'
web-0 gcr.io/google_containers/nginx-slim:0.7
web-1 gcr.io/google_containers/nginx-slim:0.8
web-2 gcr.io/google_containers/nginx-slim:0.8
{% endraw %}```
`web-0` has had its image updated. Complete the update by deleting the remaining
@ -532,10 +532,10 @@ web-2 1/1 Running 0 36s
Get the Pods to view their container images.
```shell{% raw %}
for p in 0 1 2; do kubectl get po web-$p --template '{{range $i, $c := .spec.containers}}{{$c.image}}{{end}}'; echo; done
gcr.io/google_containers/nginx-slim:0.7
gcr.io/google_containers/nginx-slim:0.7
gcr.io/google_containers/nginx-slim:0.7
kubectl get pod -l app=nginx -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.containers[0].image}{"\n"}{end}'
web-0 gcr.io/google_containers/nginx-slim:0.7
web-1 gcr.io/google_containers/nginx-slim:0.7
web-2 gcr.io/google_containers/nginx-slim:0.7
{% endraw %}```
All the Pods in the StatefulSet are now running a new container image.