Docker-install Docker on CentOS

1. Preparation

Since dokcer requires 64bit OS, version number 3.10 or newer version. So, we need to identify our CentOS system first.

$ uname -r

output :: 3.10.0-229.el7.x86_64

2. Installing with Yum

2.1 Update Yum to the latest version

$ yum update

2.2 Add the yum repo

$ sudo tee /etc/yum.repos.d/docker.repo <<-‘EOF‘

[dockerrepo]

name=Docker Repository

baseurl=https://yum.dockerproject.org/repo/main/centos/7/

enabled=1

gpgcheck=1

gpgkey=https://yum.dockerproject.org/gpg

EOF

3. Installing Docker

$yum install docker-engine

4. Open the Docker service.

$ systemctl enable docker.service

5. Start Docker daemon

$ systemctl start docker

6. Set Daemon Default boot

$ systemctl enable docke

Docker-install Docker on CentOS