HowtoinstallDockeronCentOS8

Z时代
2024-01-10
分类：综合

How to install Docker on CentOS8

Step 1, Prepare

Update OS

# yum update -y

Install download tool wget

# yum install wget -y

Step 2, Install containerd.io

To install docker in CentOS 8 is different from other CentOS versions, if you do not install this package manually, the docker service will not work.

Access page https://download.docker.com/linux/centos/7/x86_64/stable/Packages/ and copy the latest version"s link, run the following commands in the new CentOS8:

# wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.13-3.2.el7.x86_64.rpm # dnf install containerd.io-1.2.13-3.2.el7.x86_64.rpm

The latest version of containerd.io is containerd.io-1.2.13-3.2.el7.x86_64.rpm till 2020-05-25

Ref: https://www.cnblogs.com/zbseoag/p/11736006.html

Step 3, Install `docker-ce` by `yum`

# yum install -y yum-utils # yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo # yum install docker-ce docker-ce-cli containerd.io

Ref: https://docs.docker.com/engine/install/centos/

Step 4, Add user to docker group

The user to user docker needs to add in the docker group.

# gpasswd -a root docker # newgrp docker

The above example is for root, you can replace it by any other user for docker. If you do not apply this step, you have to use sudo to run docker commands, with non-root user.