etcdctl works on your laptop. On a real cluster, it fails. Here's why, and how to open the lock.

You'll learn to
say what K8s stores in etcd, where it runs (static pod) and the /registry layout
Recap
- 1kubeadm runs etcd as a pod (etcd.yaml)
- 2etcdctl needs 4 flags, copied from etcd.yaml
- 3Everything lives under /registry
Check yourself
In etcd.yaml, which flag gives you etcdctl's --cacert?
1.4
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