2)安装(3)-安装步骤(1)CentOS7安装Docker

1. CentOS7安装Docker

1.1 官方英文安装参考手册

https://docs.docker.com/install/linux/docker-ce/centos/

1.2 安装步骤

1) 官网中文安装参考手册

2) 确定你是CentOS7及以上版本

cat /etc/redhat-release

3) yum 安装

1.外网访问

image.png

yum -y install gcc
yum -y install gcc-c++

4) 卸载旧版本

yum -y remove docker docker-common docker-selinux docker-engine

2018.3 官网版本

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

5. 安装需要的软件包

yum install -y yum-utils device-mapper-persistent-data lvm2

6. 设置stable镜像仓库

推荐

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

不推荐

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

报错：
1 [Errno 14] curl#35 - TCP connection reset by peer

2 [Errno 12] curl#35 - Timeout

7. 更新yum软件包索引

yum makecache fast

8. 安装DOCKER CE

yum -y install docker-ce

9. 启动docker

systemctl start docker

10. 测试

docker version
docker run hello-world

11. 配置镜像加速

mkdir -p /etc/docker

vim  /etc/docker/daemon.json

#网易云

{"registry-mirrors": ["http://hub-mirror.c.163.com"] }

#阿里云

{
"registry-mirrors": ["https://｛自已的编码｝.mirror.aliyuncs.com"]
}

systemctl daemon-reload

systemctl restart docker

12. 卸载

systemctl stop docker 

yum -y remove docker-ce

rm -rf /var/lib/docker

13. 查询IP

docker inspect mysql | grep IPAddress