Set up your server's hostname and create a user with root privileges.

Access to VNC console in your Alibaba Cloud or SSH client installed in your PC.

Domain name must be pointed to your Alibaba Cloud ECS's IP address.If you have already registered a domain from Alibaba Cloud or any other host, you can update its domain nameserver records. A domain name registered from Alibaba Cloud.If you don't know how to setup your ECS instance, you can refer to this tutorial or quick-start guide. If you are a new user, you can get $450 – $1300 worth in Alibaba Cloud credits for your new account. You must have Alibaba Cloud Elastic Compute Service (ECS) activated and verified your valid payment method.In this article, we are installing Docker CE and docker-compose on CentOS 8. However, we can still install Docker and it’s dependencies on CentOS 8 / RHEL 8 from third party yum repositories. Whereas a new containerization platform libpod (Podman's Container Management Library) has been introduced inplace of Docker. In Red Hat Enterprise Linux (RHEL) 8 / CentOS 8, Support of Docker has been removed by the vendor. Docker CE is free and open source and distributed under Apache License 2.0. Docker CE (Community Edition) is the strip down version of Docker EE (Enterprise Edition). Docker is a set of Platform as a Service (PaaS) products that uses operating system level virtualizations to deliver software in the form of containers.

Install docker centos