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Merge pull request #31387 from avoidik/patch-2 

Update encrypt-data.md - multi-master configuration notice
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content/en/docs/tasks/administer-cluster/encrypt-data.md
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@ -27,6 +27,11 @@ The `kube-apiserver` process accepts an argument `--encryption-provider-config`
that controls how API data is encrypted in etcd. An example configuration
is provided below.
{{< caution >}}
**IMPORTANT:** For multi-master configurations (with two or more control plane nodes) the encryption configuration file must be the same!
Otherwise, the kube-apiserver can't decrypt data stored inside the key-value store.
{{< /caution >}}
## Understanding the encryption at rest configuration.
```yaml