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1. Backup Etcd 1.1 SSH to node ssh controlplane (Optional) Check etcd kubectl get pods -n kube-system | grep etcd-controlplane 1.2 Set env var Set Environment Variables for etcdctl Ensure you have the correct etcdctl environment variables configure...
1. Backup This pare can refer to my last post, here. 2. Restore To follow the official procedure[1]: "If any API servers are running in your cluster, you should not attempt to restore instances of etcd." Therefore, for restoring an etcd backup, where...
Last post I have show steps to restore etcd, but when we edit the /etc/kubernetes/manifest/etcd.yaml file, there are some confuse items among the /var/lib/etcd on hostPath and mountVolumne. For example, the --data-dir in the command: etcdctl snapshot...
Why Update etcd.yaml? In previous posts, we see we need to update the etcd.yaml file to make the restore work. And the reason for this step is related to kubelet working mechanism. Pod Reconciliation by kubelet: The etcd static pod is managed by the ...