How do i install a single instance etcd?

vaquitasos

Github releases: https://github.com/etcd-io/etcd/releases

Download the version you require from GitHub.

Untar it into the directory location you want.

$ cd /home/<user>
$ tar xvf ~/Downloads/etcd-v3.3.10-linux-amd64.tar.gz
$ ls etcd-v3.3.10-linux-amd64
default.etcd  Documentation  etcd  etcdctl  README-etcdctl.md  README.md  READMEv2-etcdctl.md

Run the etcd daemon.

$ cd etcd-v3.3.10-linux-amd64
$ ./etcd

From another terminal. Check the member list.

$ cd etcd-v3.3.10-linux-amd64
$ ./etcdctl member list                                             
8e9e05c52164694d, started, default, http://localhost:2380, http://localhost:2379

Table format list.

$ ./etcdctl --write-out=table --endpoints=localhost:2379 member list
+------------------+---------+---------+-----------------------+-----------------------+
|        ID        | STATUS  |  NAME   |      PEER ADDRS       |     CLIENT ADDRS      |
+------------------+---------+---------+-----------------------+-----------------------+
| 8e9e05c52164694d | started | default | http://localhost:2380 | http://localhost:2379 |
+------------------+---------+---------+-----------------------+-----------------------+