check etcd cluster status

Here we will check the status and healthiness of our etcd cluster that has 5 nodes.

simply Run below commands on one of Master Nodes (because our Etcd in external i just mention that we must check that from outside of etcd cluster.

wget https://github.com/etcd-io/etcd/releases/download/v3.5.14/etcd-v3.5.14-linux-amd64.tar.gz
   tar -xvzf etcd-v3.5.14-linux-amd64.tar.gz
   cd etcd-v3.5.14-linux-amd64/ 
after the etcd downloaded, run below command(ther is no need to install etcd just downlod the tarball and change current directory to it's dir)
i just star the IP addresses of Etcd nodes to have maximum security ;) just in case

    $ TCDCTL_API=3 ./etcdctl --cacert /etc/ssl/etcd/ssl/ca.pem --cert /etc/ssl/etcd/ssl/node-master1.pem --key /etc/ssl/etcd/ssl/node-master1-key.pem
     --endpoints https://192.168.***.***:2379,https://1**.***.***.***:2379,https://1**.***.***.***:2379,https://1***.***.***.***:2379,https://1**.***.***.***:2379 
     -w table check datascale --insecure-skip-tls-verify


the output of the command must be like this:

+-----------------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+
|          ENDPOINT           |        ID        | VERSION | DB SIZE | IS LEADER | IS LEARNER | RAFT TERM | RAFT INDEX | RAFT APPLIED INDEX | ERRORS |
+-----------------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+
| https://1**.***.***.**:2379 | 3287859c1b60bb57 |  3.5.12 |   21 MB |     false |      false |         3 |      20484 |              20484 |        |
| https://1**.***.***.**:2379 | c58d3bc3b3ea3688 |  3.5.12 |   21 MB |     false |      false |         3 |      20484 |              20484 |        |
| https://1**.***.***.**:2379 | 2c7c42baa67d2fa3 |  3.5.12 |   21 MB |     false |      false |         3 |      20484 |              20484 |        |
| https://1**.***.***.**:2379 | 97f9622fc45ab747 |  3.5.12 |   21 MB |     false |      false |         3 |      20484 |              20484 |        |
| https://1**.***.***.**:2379 | 24b03991f7460e44 |  3.5.12 |   22 MB |      true |      false |         3 |      20485 |              20485 |        |
+-----------------------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+

as you can see we have no error and everything is good.
here we can see that one of our etcd cluster hasbeen selected as LEADER, the leader ship process depends on Quorum Dessicion and etc...

here we go....

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