kubeadm: add a caution about certs in HA document (#12407)

* kubeadm: add a caution about certs in HA document

* Update content/en/docs/setup/independent/high-availability.md

Co-Authored-By: neolit123 <neolit123@gmail.com>
This commit is contained in:
Lubomir I. Ivanov 2019-01-29 13:02:33 +02:00 committed by Kubernetes Prow Robot
parent bef190960f
commit a7792a6ae8
1 changed files with 6 additions and 0 deletions

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@ -223,6 +223,12 @@ SSH is required if you want to control all nodes from a single machine.
done
```
{{< caution >}}
Copy only the certificates in the above list. kubeadm will take care of generating the rest of the certificates
with the required SANs for the joining control-plane instances. If you copy all the certificates by mistake,
the creation of additional nodes could fail due to a lack of required SANs.
{{< /caution >}}
### Steps for the rest of the control plane nodes
1. Move the files created by the previous step where `scp` was used: