确认学习环境(Centos 7)
cat /etc/os-releaseNAME="CentOS Linux"VERSION="7 (Core)"ID="centos"ID_LIKE="rhel fedora"VERSION_ID="7"PRETTY_NAME="CentOS Linux 7 (Core)"ANSI_COLOR="0;31"CPE_NAME="cpe:/o:centos:centos:7"HOME_URL="https://www.centos.org/"BUG_REPORT_URL="https://bugs.centos.org/"CENTOS_MANTISBT_PROJECT="CentOS-7"CENTOS_MANTISBT_PROJECT_VERSION="7"REDHAT_SUPPORT_PRODUCT="centos"REDHAT_SUPPORT_PRODUCT_VERSION="7"
帮忙文档

https://docs.docker.com/engin...

1.删除旧版本

sudo yum remove docker \                  docker-client \                  docker-client-latest \                  docker-common \                  docker-latest \                  docker-latest-logrotate \                  docker-logrotate \                  docker-engine

2.须要的安装包

sudo yum install -y yum-utils

3.设置镜像仓库（阿里云）

yum-config-manager \    --add-repo \    http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

阿里云镜像减速
https://help.aliyun.com/docum...

sudo mkdir -p /etc/dockersudo tee /etc/docker/daemon.json <<-'EOF'{  "registry-mirrors": ["https://***.mirror.aliyuncs.com"]}EOFsudo systemctl daemon-reloadsudo systemctl restart docker

4.更新yum索引

yum makecache fast

5.装置Docker （docker-ce 社区 docker-ee企业）

sudo yum install docker-ce docker-ce-cli containerd.io

6.启动docker

systemctl start docker

7.查看版本

docker version

8.运行hello world

sudo docker run hello-worlddocker imagesREPOSITORY    TAG       IMAGE ID       CREATED        SIZEhello-world   latest    d1165f221234   4 months ago   13.3kB

9.卸载Docker

#1.卸载依赖 sudo yum remove docker-ce docker-ce-cli containerd.io#2.删除资源 sudo rm -rf /var/lib/docker sudo rm -rf /var/lib/containerd

教程地址
【狂神说Java】Docker最新超具体版教程通俗易懂