This topic describes how to deploy etcd on a single instance by creating a stack in the Resource Orchestration Service (ROS) console.
Background information
etcd is a distributed storage system that uses key-value pairs to store critical data. etcd implements reliable distributed collaboration by using distributed locks, leader election, and write barriers.
You can use the sample template Installs etcd on an ECS instance (existing VPC) to deploy etcd on a CentOS 7 Elastic Compute Service (ECS) instance based on existing resources such as virtual private clouds (VPCs), vSwitches, and security groups.
After you create a stack by using the template, you can click the resource ID of the ECS instance in which etcd is deployed on the Resources tab. On the Instances page, you can click Connect in the Actions column of the instance to log on to the ECS instance.