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Update upgrades.md

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Clarify that the `kube_version` environment variable is needed for the CLI "graceful upgrade". Also add and example to check that the upgrade was successful.
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Justin Downing 2017-03-29 22:00:52 -04:00 committed by GitHub
parent c2c334d22f
commit fbded9cdac
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docs/upgrades.md
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@ -44,7 +44,15 @@ deployed.
```
git fetch origin
git checkout origin/master
ansible-playbook upgrade-cluster.yml -b -i inventory/inventory.cfg
ansible-playbook upgrade-cluster.yml -b -i inventory/inventory.cfg -e kube_version=v1.6.0
```
After a successul upgrade, the Server Version should be updated:
```
$ kubectl version
Client Version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.0", GitCommit:"fff5156092b56e6bd60fff75aad4dc9de6b6ef37", GitTreeState:"clean", BuildDate:"2017-03-28T19:15:41Z", GoVersion:"go1.8", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.0+coreos.0", GitCommit:"8031716957d697332f9234ddf85febb07ac6c3e3", GitTreeState:"clean", BuildDate:"2017-03-29T04:33:09Z", GoVersion:"go1.7.5", Compiler:"gc", Platform:"linux/amd64"}
```
#### Upgrade order