CentOS6.5下安装Docker

一.运行docker Linux内核版本需要在3.8以上,针对centos6.5 内核为2.6的系统需要先升级内核.不然会特别卡

 在yum的ELRepo源中,有mainline(4.5)、long-term(4.4)这2个内核最新版本,考虑到long-term更稳定,会长期更新,所以选择这个版本。(在 http://hkg.mirror.rackspace.com/elrepo/kernel/el7/x86_64/RPMS/ 能查看最新内核版本)

1.查看当前版本:

[root@localhost ~]# more /etc/issue
CentOS release 6.5 (Final)
Kernel \r on an \m
[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

2.升级内核

1.>导入public key

rpm --import http://www.elrepo.org/RPM-GPG-KEY-elrepo.org

2.>安装ELRepo到CentOS-6.5中

rpm -ivh http://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm

3.>安装**kernel-lt(lt=long-term)**

yum --enablerepo=elrepo-kernel install kernel-lt -y

或者安装kernel-ml(ml=mainline)

yum --enablerepo=elrepo-kernel install kernel-ml -y

4.>编辑grub.conf文件,修改Grub引导顺序


vim /etc/grub.conf
# grub.conf generated by anaconda
#
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (4.4.121-1.el6.elrepo.x86_64)
        root (hd0,0)
        kernel /vmlinuz-4.4.121-1.el6.elrepo.x86_64 ro root=UUID=9955fe5f-5015-4582-a9d5-60fedd85d282 rd_NO_LUKS rd_NO_LVM LANG=zh_CN.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet
        initrd /initramfs-4.4.121-1.el6.elrepo.x86_64.img
title CentOS (2.6.32-431.el6.x86_64)
        root (hd0,0)
        kernel /vmlinuz-2.6.32-431.el6.x86_64 ro root=UUID=9955fe5f-5015-4582-a9d5-60fedd85d282 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet
        initrd /initramfs-2.6.32-431.el6.x86_64.img


确认刚安装好的内核在哪个位置,然后设置default值(从0开始),一般新安装的内核在第一个位置,所以设置default=0

5.>重启,查看内核版本号.

[root@localhost ~]# reboot
[root@localhost ~]# uname -r
4.4.121-1.el6.elrepo.x86_64

至此,CentOS6.5的内核升级完成,下面就可以安装docker了.

二.安装docker

 直接使用命令: yum install docker-io   是会报错的!!!  提示:No package docker-io available.

 需要先安装yum 源.

yum -y install http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

再执行

yum install docker-io

就可以正常安装了!!

启动docker

service docker start

查看docker版本:


[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

查看docker日志.

cat /var/log/docker

 至此,docker安装完成!!!

三.卸载docker

列出你安装过的包

[root@localhost ~]# yum list installed | grep docker
docker-io.x86_64                     1.7.1-2.el6                        @epel  

删除软件包

yum -y remove docker-io.x86_64
删除镜像/容器等
rm -rf /var/lib/docker

四.docker加速配置,配置国内源(docker1.7修改方法)

vi /etc/sysconfig/docker

加入下面两行
other_args="--registry-mirror=https://wbtwgo1e.mirror.aliyuncs.com"  
OPTIONS='--registry-mirror=https://wbtwgo1e.mirror.aliyuncs.com'
文章转载来源:https://blog.csdn.net/lvshuocool/article/details/79540617

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转载自blog.csdn.net/qq_42679773/article/details/81066053