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Update to etcdctl restore command syntax 

The syntax of the restore command at line 348 is problematic (doesn't work) or might have issues with a certain versions of Kubernetes (tried on version 1.23.0), doesn't work.

Also included export of the ECTDCTL_API=3 variable `export ECTDCTL_API=3`
pull/36427/head
Enyi 2022-08-31 02:12:08 +01:00 committed by GitHub
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content/en/docs/tasks/administer-cluster/configure-upgrade-etcd.md
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@ -345,7 +345,12 @@ ETCDCTL_API=3 etcdctl --endpoints 10.2.0.9:2379 snapshot restore snapshotdb
```
Another example for restoring using etcdctl options:
```shell
ETCDCTL_API=3 etcdctl --data-dir <data-dir-location> snapshot restore snapshotdb
ETCDCTL_API=3 etcdctl snapshot restore --data-dir <data-dir-location> snapshotdb
```
Yet another example would be to first export the environment variable
```shell
export ETCDCTL_API=3
etcdctl snapshot restore --data-dir <data-dir-location> snapshotdb
```
For more information and examples on restoring a cluster from a snapshot file, see