基于阿里云镜像安装docker

1 安装docker：docker_install

 

#docker install server version requirements

server requirements: Centos7 or centos6.5 above

kernel requirements: Centos7:kernrl= 3.10 ro abover, ctntos6.5:kernel=2.6.32-431or above

system 64_bit

#my server version:

 

system server

[bigdata@localhost ~]$ cat /etc/redhat-release

CentOS Linux release 7.5.1804 (Core)

kernel:

[bigdata@localhost ~]$ uname -r

3.10.0-327.el7.x86_64

[bigdata@localhost ~]$ uname -a

Linux localhost.localdomain 3.10.0-327.el7.x86_64 #1 SMP Thu Nov 19 22:10:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

[bigdata@localhost ~]$ getconf LONG_BIT

64

 

 

2 docker uninstall

#delete installed Docker

command:

yum remove docker \

docker-client \

docker-client-latest \

docker-common \

docker-latest \

docker-latest-logrotate \

docker-logrotate \

docker-selinux \

docker-engine-selinux \

docker-engine

#config aliyun Docker Yum source

确保 yum 包更新到最新。

# yum update

# Set up repository

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

 

# Use Aliyun Docker 用阿里云的原因是其他网站可能无法访问

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

 

 

安装指定版本: install the specified version

 

查看Docker版本：check docker version

 

yum list docker-ce --showduplicates

 

 

安装较旧版本（比如Docker 17.03.2) 时需要指定完整的rpm包的包名，并且加上--setopt=obsoletes=0 参数：

 

# Install docker

# on a new system with yum repo defined, forcing older version and ignoring obsoletes introduced by 17.06.0

yum install -y --setopt=obsoletes=0 \

docker-ce-17.03.2.ce-1.el7.centos.x86_64 \

docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch

或安装Docker较新版本（比如Docker 18.03.0)时加上rpm包名的版本号部分：

yum install docker-ce-18.03.0.ce

查看docker 版本

docker -v

启动Docker服务

# Start docker service

systemctl enable docker

systemctl start docker

 

下面的安装方式可能会出现启动失败的问题。

或者直接用yum安装docker

yum install docker

或者

yum install docker-io

或者

yum install docker-ce

默认情况下会安装最新