• 卸载旧版本docker或者环境
[root@iZf8zdcobr3fw7vn0p3538Z /]# yum remove docker \
>                   docker-client \
>                   docker-client-latest \
>                   docker-common \
>                   docker-latest \
>                   docker-latest-logrotate \
>                   docker-logrotate \
>                   docker-engine
Loaded plugins: fastestmirror
No Match for argument: docker
No Match for argument: docker-client
No Match for argument: docker-client-latest
No Match for argument: docker-common
No Match for argument: docker-latest
No Match for argument: docker-latest-logrotate
No Match for argument: docker-logrotate
No Match for argument: docker-engine
No Packages marked for removal
[root@iZf8zdcobr3fw7vn0p3538Z /]#
• 安装需要的安装包
[root@iZf8zdcobr3fw7vn0p3538Z /]# yum install -y yum-utils
Complete!
• 设置镜像仓库（配置阿里云镜像源）
官方镜像源（国外站点，国内不建议使用）
yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo
阿里云镜像源
yum-config-manager \
    --add-repo \
    https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo[root@iZf8zdcobr3fw7vn0p3538Z /]# yum-config-manager \
>     --add-repo \
>     https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror
adding repo from: https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
grabbing file https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
• 更新yum软件包索引
[root@iZf8zdcobr3fw7vn0p3538Z /]# yum makecache fast
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
base                                                                                     | 3.6 kB  00:00:00     
docker-ce-stable                                                                         | 3.5 kB  00:00:00     
epel                                                                                     | 4.7 kB  00:00:00     
extras                                                                                   | 2.9 kB  00:00:00     
updates                                                                                  | 2.9 kB  00:00:00     
(1/2): docker-ce-stable/7/x86_64/updateinfo                                              |   55 B  00:00:00     
(2/2): docker-ce-stable/7/x86_64/primary_db                                              | 102 kB  00:00:00     
Metadata Cache Created
• 安装docker
yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin[root@iZf8zdcobr3fw7vn0p3538Z /]# yum install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
Complete!
• 运行docker
[root@iZf8zdcobr3fw7vn0p3538Z /]# systemctl start docker
• 检查docker版本
[root@iZf8zdcobr3fw7vn0p3538Z /]# docker version
Client: Docker Engine - Community
 Version:           23.0.3
 API version:       1.42
 Go version:        go1.19.7
 Git commit:        3e7cbfd
 Built:             Tue Apr  4 22:04:18 2023
 OS/Arch:           linux/amd64
 Context:           default

Server: Docker Engine - Community
 Engine:
  Version:          23.0.3
  API version:      1.42 (minimum version 1.12)
  Go version:       go1.19.7
  Git commit:       59118bf
  Built:            Tue Apr  4 22:02:01 2023
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.6.20
  GitCommit:        2806fc1057397dbaeefbea0e4e17bddfbd388f38
 runc:
  Version:          1.1.5
  GitCommit:        v1.1.5-0-gf19387a
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0
• 运行hello word检查docker是否安装成功
[root@iZf8zdcobr3fw7vn0p3538Z /]# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
2db29710123e: Pull complete 
Digest: sha256:4e83453afed1b4fa1a3500525091dbfca6ce1e66903fd4c01ff015dbcb1ba33e
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/
• 查看镜像
[root@iZf8zdcobr3fw7vn0p3538Z /]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED         SIZE
hello-world   latest    feb5d9fea6a5   18 months ago   13.3kB

#创建目录
sudo mkdir -p /etc/docker

#配置阿里云地址
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://gp2nlhk0.mirror.aliyuncs.com"]
}
EOF

#重启镜像
sudo systemctl daemon-reload

#重启docker
sudo systemctl restart docker[root@iZf8zdcobr3fw7vn0p3538Z /]# sudo mkdir -p /etc/docker
[root@iZf8zdcobr3fw7vn0p3538Z /]# sudo tee /etc/docker/daemon.json <<-'EOF'
> {
>   "registry-mirrors": ["https://gp2nlhk0.mirror.aliyuncs.com"]
> }
> EOF
{
  "registry-mirrors": ["https://gp2nlhk0.mirror.aliyuncs.com"]
}
[root@iZf8zdcobr3fw7vn0p3538Z /]# sudo systemctl daemon-reload
[root@iZf8zdcobr3fw7vn0p3538Z /]# sudo systemctl restart docker

docker run -d -p 8088:9000 --restart=always -v /var/run/docker.sock:/var/run/docker.sock --privileged=true portainer/portainer

docker run -d -p 7777:3306 -e MYSQL_ROOT_PASSWORD=123456 --name mysql02 --volumes-from mysql01 mysql:5.7docker run -d -p 7777:3306 -v /home/mysql/conf:/etc/mysql/conf.d -v /home/mysql/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 --name mysql01 mysql:5.7