This article covers how to install and use the Docker-compose on CentOS 8 system. By using the Docker-compose, you can deploy multiple Docker applications with container services through a single command.
Basically, Docker Compose is a tool that can be used to define and run multiple containers as a single service. With Docker Compose, you can link multiple containers and deploy an application from a single command.
It is mainly used in the development, testing and staging environment.
Docker Compose uses a YAML file to define a complex stack in a file and running it with a single command.
To install Docker on CentOS:
1. Before starting, make sure you have Docker installed on your server. If not installed, you will need to add Docker-CE repository to your system.
You can add it with the following command:
$ dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
2. Once the repository is added, install the latest version of docker using the following command:
# dnf install docker-ce --nobest -y
# systemctl start docker
# systemctl enable docker
3. You can verify the docker version with the following command:
$ docker --version