本文出自http://www.cnblogs.com/scoter2008
1、强大的官方文档
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https:
//docs
.docker.com
/engine/installation/linux/centos/
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2、按步骤来，先更新yum源，这里用163的源
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yum
install
-y wget
cd
/etc/yum
.repos.d
wget http:
//mirrors
.163.com/.help
/CentOS7-Base-163
.repo
/usr/bin/yum
clean all
/usr/bin/yum
makecache
其他系统自带的源可以保留，也可以全部干掉
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3、更新系统
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yum update
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4、如果遇到问题：Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
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yum
install
-y deltarpm
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tee
/etc/yum
.repos.d
/docker
.repo <<-
'EOF'
[dockerrepo]
name=Docker Repository
baseurl=https:
//yum
.dockerproject.org
/repo/main/centos/7/
enabled=1
gpgcheck=1
gpgkey=https:
//yum
.dockerproject.org
/gpg
EOF
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6、安装Docker
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yum
install
docker-engine
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7、如果遇到问题：Public key for docker-engine-selinux-1.10.1-1.el7.centos.noarch.rpm is not installed，执行下面的命令
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rpm --
import
https:
//yum
.dockerproject.org
/gpg
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8、Docker下载速度很慢，请耐心等待
9、安装完成后设置开机自启
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systemctl
enable
docker.service
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10、启动docker守护进程
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systemctl start docker
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11、查看docker版本
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[root@localhost ~]
# docker version
Client:
Version: 1.12.3
API version: 1.24
Go version: go1.6.3
Git commit: 6b644ec
Built:
OS
/Arch
: linux
/amd64
Server:
Version: 1.12.3
API version: 1.24
Go version: go1.6.3
Git commit: 6b644ec
Built:
OS
/Arch
: linux
/amd64
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12、 Done，enjoy it!
