CentOS安装docker

本文主要以centos安装为例，来进行讲解【参照官网】
docker-CentOS安装

更新 yum 工具包

 sudo yum install -y yum-utils

添加docker-ce repo

 sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

安装容器和容器compose插件

 sudo yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

启动docker

sudo systemctl start docker

验证docker

sudo docker run hello-world

 [root@centos7-002 ~]# sudo docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
2db29710123e: Pull complete 
Digest: sha256:2498fce14358aa50ead0cc6c19990fc6ff866ce72aeb5546e1d59caac3d0d60f
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

按照上面docker简单安装就已经完成！

阿里云镜像加速配置

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://d99n5rnb.mirror.aliyuncs.com"]
}
EOF

重启 daemon

sudo systemctl daemon-reload

重启docker

sudo systemctl restart docker

docker卸载请参照

docker卸载