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doc(readme): add instructions for cluster scaling and anonymous auth enabling

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Signed-off-by: zhenyus <zhenyus@mathmast.com>
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zhenyus 2025-02-19 13:55:53 +08:00
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cluster/ansible/README.md
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@ -48,4 +48,12 @@ Using `sysctl -p` to make kernel params effect.
## How to use ? ## How to use ?
TODO ### Cluster Scaling
If you want to scale nodes in cluster, you can execute script `upgrade-cluster.sh` after environment initialized.
#### Tips - ANONYMOUS AUTH ENABLING BEFORE SCALE
`kubeadm` using bootstrap token to join newly added nodes into cluster, which means we need **enable anonymous authentication** for `kube-apiserver` temporally.
You need edit `/etc/kubernetes/manifests/kube-apiserver.yaml` on master-01 node and set `--anonymous-auth=true` and you must recovery it to `false` when cluster has been scaled.