CentOS6.8上Docker的安装
一、查看系统版本
目前,CentOS 仅发行版本中的内核支持 Docker。
Docker 运行在 CentOS 7 上,要求系统为64位、系统内核版本为 3.10 以上。
Docker 运行在 CentOS-6.5 或更高的版本的 CentOS 上,要求系统为64位、系统内核版本为 2.6.32-431 或者更高版本。
[root@CentOS6 ~]# uname -a
Linux CentOS6.8 2.6.32-642.el6.x86_64 #1 SMP Tue May 10 17:27:01 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
[root@CentOS6 ~]# cat /etc/redhat-release
CentOS release 6.8 (Final)
二、安装Docker
- Docker使用EPEL发布,RHEL系的OS首先要确保已经持有EPEL仓库,否则先检查OS的版本,然后安装相应的EPEL包。
RHEL:Red Hat公司发布的面向企业用户的Linux操作系统。
yum install -y epel-release
2. 执行命令:
yum install -y docker-io
然而:报错了
[root@CentOS6 ~]# yum install -y docker-io
Loaded plugins: fastestmirror
Setting up Install Process
Determining fastest mirrors
epel/metalink | 5.4 kB 00:00
* base: mirrors.njupt.edu.cn
* epel: mirrors.njupt.edu.cn
* extras: mirrors.njupt.edu.cn
* updates: mirrors.njupt.edu.cn
epel | 5.3 kB 00:00
epel/primary_db | 6.1 MB 00:07
No package docker-io available.
Error: Nothing to do
搜了各种答案,总结如下:
解决办法1:
yum没有找到docker包,更新epel第三方软件库,运行命令:
sudo yum install epel-release
之后再执行:
sudo yum install docker
然而我的却还是报错。
解决办法2:
Ubuntu/Debian: curl -sSL https://get.docker.com | sh
Linux 64bit binary: https://get.docker.com/builds/Linux/x86_64/docker-1.7.1
Darwin/OSX 64bit client binary: https://get.docker.com/builds/Darwin/x86_64/docker-1.7.1
Darwin/OSX 32bit client binary: https://get.docker.com/builds/Darwin/i386/docker-1.7.1
Linux 64bit tgz: https://get.docker.com/builds/Linux/x86_64/docker-1.7.1.tgz
Windows 64bit client binary: https://get.docker.com/builds/Windows/x86_64/docker-1.7.1.exe
Windows 32bit client binary: https://get.docker.com/builds/Windows/i386/docker-1.7.1.exe
Centos 6/RHEL 6: https://get.docker.com/rpm/1.7.1/centos-6/RPMS/x86_64/docker-engine-1.7.1-1.el6.x86_64.rpm
Centos 7/RHEL 7: https://get.docker.com/rpm/1.7.1/centos-7/RPMS/x86_64/docker-engine-1.7.1-1.el7.centos.x86_64.rpm
Fedora 20: https://get.docker.com/rpm/1.7.1/fedora-20/RPMS/x86_64/docker-engine-1.7.1-1.fc20.x86_64.rpm
Fedora 21: https://get.docker.com/rpm/1.7.1/fedora-21/RPMS/x86_64/docker-engine-1.7.1-1.fc21.x86_64.rpm
Fedora 22: https://get.docker.com/rpm/1.7.1/fedora-22/RPMS/x86_64/docker-engine-1.7.1-1.fc22.x86_64.rpm
yum install docker-io,该命令是用源安装docker,可是源一般是国外源,用这个命令因为GFW被墙,根本安装不了
yum install https://get.docker.com/rpm/1.7.1/centos-6/RPMS/x86_64/docker-engine-1.7.1-1.el6.x86_64.rpm
此时:成功安装
3.安装后的配置文件
[root@CentOS6 ~]# ls -l /etc/sysconfig/docker
-rw-r--r--. 1 root root 199 Jul 15 2015 /etc/sysconfig/docker
4. 启动Docker后台服务
service docker start
5. Docker Version验证
docker version