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replace docker run for running etcdctl command with just etcdctl (#39149) 

* replace docker run for running etcdctl command with just etcdctl

* add space

* add note for etcdctl

* remove note on etcd tag
This commit is contained in:
Reeta Singh 2023-02-08 00:01:00 -08:00 committed by GitHub
parent dd3a6796cf
commit f3cfa2c8f6
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1 changed files with 17 additions and 15 deletions
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32
content/en/docs/setup/production-environment/tools/kubeadm/setup-ha-etcd-with-kubeadm.md
View File

@ -273,22 +273,24 @@ on Kubernetes dual-stack support see [Dual-stack support with kubeadm](/docs/set
1. Optional: Check the cluster health.
```sh
docker run --rm -it \
--net host \
-v /etc/kubernetes:/etc/kubernetes registry.k8s.io/etcd:${ETCD_TAG} etcdctl \
--cert /etc/kubernetes/pki/etcd/peer.crt \
--key /etc/kubernetes/pki/etcd/peer.key \
--cacert /etc/kubernetes/pki/etcd/ca.crt \
--endpoints https://${HOST0}:2379 endpoint health --cluster
...
https://[HOST0 IP]:2379 is healthy: successfully committed proposal: took = 16.283339ms
https://[HOST1 IP]:2379 is healthy: successfully committed proposal: took = 19.44402ms
https://[HOST2 IP]:2379 is healthy: successfully committed proposal: took = 35.926451ms
```
If `etcdctl` isn't available, you can run this tool inside a container image.
You would do that directly with your container runtime using a tool such as
`crictl run` and not through Kubernetes
```sh
ETCDCTL_API=3 etcdctl \
--cert /etc/kubernetes/pki/etcd/peer.crt \
--key /etc/kubernetes/pki/etcd/peer.key \
--cacert /etc/kubernetes/pki/etcd/ca.crt \
--endpoints https://${HOST0}:2379 endpoint health
...
https://[HOST0 IP]:2379 is healthy: successfully committed proposal: took = 16.283339ms
https://[HOST1 IP]:2379 is healthy: successfully committed proposal: took = 19.44402ms
https://[HOST2 IP]:2379 is healthy: successfully committed proposal: took = 35.926451ms
```
- Set `${HOST0}`to the IP address of the host you are testing.
- Set `${ETCD_TAG}` to the version tag of your etcd image. For example `3.4.3-0`. To see the etcd image and tag that kubeadm uses execute `kubeadm config images list --kubernetes-version ${K8S_VERSION}`, where `${K8S_VERSION}` is for example `v1.17.0`.
- Set `${HOST0}`to the IP address of the host you are testing.
## {{% heading "whatsnext" %}}