CENTOS6.7 安装DOCKER

一、查看系统版本

[root@localhost ~]# cat /etc/redhat-release

CentOS release 6.7 (Final)

二、安装EPEL

1.进入centos6系列EPEL下载地址

http://download.fedoraproject.org/pub/epel/6/i386/repoview/epel-release.html

2. wget下载

[root@localhost ~]# wget http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

--2015-09-10 17:50:49-- http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

正在解析主机 download.fedoraproject.org... 67.219.144.68, 209.132.181.16, 66.35.62.162, ...

正在连接 download.fedoraproject.org|67.219.144.68|:80... 已连接。

已发出 HTTP 请求，正在等待回应... 302 Found

位置：http://mirrors.opencas.cn/epel/6/i386/epel-release-6-8.noarch.rpm [跟随至新的 URL]

--2015-09-10 17:50:50-- http://mirrors.opencas.cn/epel/6/i386/epel-release-6-8.noarch.rpm

正在解析主机 mirrors.opencas.cn... 159.226.11.160, 2001:cc0:2004:1:225:90ff:fe00:fe8b, 2001:cc0:2004:1:225:90ff:fe3a:e6b5

正在连接 mirrors.opencas.cn|159.226.11.160|:80... 已连接。

已发出 HTTP 请求，正在等待回应... 200 OK

长度：14540 (14K) [application/x-redhat-package-manager]

正在保存至: “epel-release-6-8.noarch.rpm”

100%[=======================================================================================================>] 14,540 12.9K/s in 1.1s

2015-09-10 17:50:56 (12.9 KB/s) - 已保存 “epel-release-6-8.noarch.rpm” [14540/14540])

3.rpm安装EPEL(我已经安装过了，所以显示已经安装了)

[root@localhost ~]# rpm -ivh epel-release-6-8.noarch.rpm

warning: epel-release-6-8.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY

Preparing... ########################################### [100%]

package epel-release-6-8.noarch is already installed

4.安装好EPEL 源后，用yum 命令来检查是否添加到源列表

root@localhost ~]# yum repolist

已加载插件：fastestmirror, refresh-packagekit, security

Loading mirror speeds from cached hostfile

* base: centos.ustc.edu.cn

* epel: mirror01.idc.hinet.net

* extras: mirrors.163.com

* updates: mirrors.163.com

仓库标识仓库名称状态

base CentOS-6 - Base 6,575

*epel Extra Packages for Enterprise Linux 6 - x86_64 11,766

extras CentOS-6 - Extras 35

updates CentOS-6 - Updates 298

repolist: 18,674

5.bingo，已经添加。进行缓存。

[root@localhost ~]# yum makecache

已加载插件：fastestmirror, refresh-packagekit, security

Loading mirror speeds from cached hostfile

Could not get metalink https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=x86_64 error was

12: Timeout on https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=x86_64: (28, 'Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds')

* base: mirrors.hust.edu.cn

* epel: ftp.cuhk.edu.hk

* extras: centos.ustc.edu.cn

* updates: centos.ustc.edu.cn

base | 3.7 kB 00:00

extras | 3.4 kB 00:00

updates | 3.4 kB 00:00

元数据缓存已建立

三、禁用selinux

1.查看selinux状态

[root@localhost ~]# cat /etc/selinux/config

# This file controls the state of SELinux on the system.

# SELINUX= can take one of these three values:

# enforcing - SELinux security policy is enforced.

# permissive - SELinux prints warnings instead of enforcing.

# disabled - No SELinux policy is loaded.

SELINUX=enforcing

# SELINUXTYPE= can take one of these two values:

# targeted - Targeted processes are protected,

# mls - Multi Level Security protection.

SELINUXTYPE=targeted

2.修改该配置文件中将enforcing替换为disabled

[root@localhost ~]# cat /etc/selinux/config

# This file controls the state of SELinux on the system.

# SELINUX= can take one of these three values:

# enforcing - SELinux security policy is enforced.

# permissive - SELinux prints warnings instead of enforcing.

# disabled - No SELinux policy is loaded.

SELINUX=disabled

# SELINUXTYPE= can take one of these two values:

# targeted - Targeted processes are protected,

# mls - Multi Level Security protection.

SELINUXTYPE=targeted

3.reboot重启一下系统，使生效。

四、准备就绪，安装docker-io，摸摸哒。

[root@localhost ~]# yum install docker-io

已加载插件：fastestmirror, refresh-packagekit, security

设置安装进程

Loading mirror speeds from cached hostfile

* base: mirrors.hust.edu.cn

* epel: ftp.cuhk.edu.hk

* extras: mirrors.163.com

* updates: mirrors.163.com

解决依赖关系

--> 执行事务检查

---> Package docker-io.x86_64 0:1.7.1-2.el6 will be 安装

--> 处理依赖关系 lxc，它被软件包 docker-io-1.7.1-2.el6.x86_64 需要

--> 处理依赖关系 libcgroup，它被软件包 docker-io-1.7.1-2.el6.x86_64 需要

--> 执行事务检查

---> Package libcgroup.x86_64 0:0.40.rc1-16.el6 will be 安装

---> Package lxc.x86_64 0:1.0.7-2.el6 will be 安装

--> 处理依赖关系 lua-lxc(x86-64) = 1.0.7-2.el6，它被软件包 lxc-1.0.7-2.el6.x86_64 需要

--> 处理依赖关系 lua-alt-getopt，它被软件包 lxc-1.0.7-2.el6.x86_64 需要

--> 处理依赖关系 liblxc.so.1()(64bit)，它被软件包 lxc-1.0.7-2.el6.x86_64 需要

--> 执行事务检查

---> Package lua-alt-getopt.noarch 0:0.7.0-1.el6 will be 安装

---> Package lua-lxc.x86_64 0:1.0.7-2.el6 will be 安装

--> 处理依赖关系 lua-filesystem，它被软件包 lua-lxc-1.0.7-2.el6.x86_64 需要

---> Package lxc-libs.x86_64 0:1.0.7-2.el6 will be 安装

--> 执行事务检查

---> Package lua-filesystem.x86_64 0:1.4.2-1.el6 will be 安装

--> 完成依赖关系计算

依赖关系解决

=================================================================================================================================================

软件包架构版本仓库大小

=================================================================================================================================================

正在安装:

docker-io x86_64 1.7.1-2.el6 epel 4.6 M

为依赖而安装:

libcgroup x86_64 0.40.rc1-16.el6 base 129 k

lua-alt-getopt noarch 0.7.0-1.el6 epel 6.9 k

lua-filesystem x86_64 1.4.2-1.el6 epel 24 k

lua-lxc x86_64 1.0.7-2.el6 epel 15 k

lxc x86_64 1.0.7-2.el6 epel 120 k

lxc-libs x86_64 1.0.7-2.el6 epel 250 k

事务概要

=================================================================================================================================================

Install 7 Package(s)

总下载量：5.1 M

Installed size: 20 M

确定吗？[y/N]：

还需要我解释么，一路y下去。

启动我们的宝贝docker

[root@localhost ~]# /etc/init.d/docker start

Starting cgconfig service: [确定]

Starting docker: [确定]

查看docker进程

[root@localhost ~]# ps -ef | grep docker

root 3602 1 0 18:26 pts/0 00:00:00 /usr/bin/docker -d

root 3745 3429 0 18:27 pts/0 00:00:00 grep docker

查看安装的docker版本

Status: Downloaded newer image for centos:latest

[root@localhost ~]# docker version

Client version: 1.7.1

Client API version: 1.19

Go version (client): go1.4.2

Git commit (client): 786b29d/1.7.1

OS/Arch (client): linux/amd64

Server version: 1.7.1

Server API version: 1.19

Go version (server): go1.4.2

Git commit (server): 786b29d/1.7.1

OS/Arch (server): linux/amd64

注意：

我在这里并没有升级系统内核

[root@localhost ~]# uname -r

2.6.32-573.3.1.el6.x86_64

docker官方文档说要求Linux kernel至少3.8以上。

在一个新的终端里守护模式运行docker时，会出现warning

[root@localhost ~]# docker -d

WARN[0000] You are running linux kernel version 2.6.32-573.3.1.el6.x86_64, which might be unstable running docker. Please upgrade your kernel to 3.10.0.

但是目前表示我可以正常使用。

(责任编辑：IT)

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CENTOS6.7 安装DOCKER