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

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Jan 29, 2019
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kubeadm: add a caution about certs in HA document #12407

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kubeadm: add a caution about certs in HA document
neolit123 Jan 28, 2019
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Update content/en/docs/setup/independent/high-availability.md
ereslibre Jan 28, 2019
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6 changes: 6 additions & 0 deletions content/en/docs/setup/independent/high-availability.md
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Expand Up @@ -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:
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