centos6.2 64 部署docker

liuhongyu

　　centos6.2 64 部署docker
　　

　　安装docker yum源：
　　yum install http://mirrors.yun-idc.com/epel/6/i386/epel-release-6-8.noarch.rpm
　　

[root@yz6245 yum.repos.d]#  yum install docker-io

　　Loaded plugins: fastestmirror, refresh-packagekit, security
　　Loading mirror speeds from cached hostfile
　　Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again
　　

　　解决：
　　修改repo：https 改为http
　　
　　yum install docker-io
　　

　　# 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
　　Get http:///var/run/docker.sock/v1.19/version: dial unix /var/run/docker.sock: no such file or directory. Are you trying to connect to a TLS-enabled daemon without TLS?
　　

　　

　　

　　service docker start
　　启动成功
　　#service docker start 这里等价于docker -d
　　

　　docker -d  有报错：

[root@yz6245 yum.repos.d]# docker  -d

　　WARN[0000] You are running linux kernel version 2.6.32-220.el6.x86_64, which might be unstable running docker. Please upgrade your kernel to 3.10.0.
　　docker: relocation error: docker: symbol dm_task_get_info_with_deferred_remove, version Base not defined in file libdevmapper.so.1.02 with link time reference
　　

　　

　　解决：
　　yum install device-mapper-libs
　　安装成功后还是同样错误，对比在centos6.5上部署的环境，发现device-mapper-libs版本低，故进行了手动rpm安装。
　　升级高版本后解决。
　　依赖包：
　　yum install libudev-devel.x86_64
　　

　　

　　

　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-1.02.117-7.el6.x86_64.rpm
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-devel-1.02.117-7.el6.i686.rpm
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-devel-1.02.117-7.el6.x86_64.rpm
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-event-1.02.117-7.el6.x86_64.rpm
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-event-devel-1.02.117-7.el6.i686.rpm
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-event-devel-1.02.117-7.el6.x86_64
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-event-libs-1.02.117-7.el6.i686.rpm
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-event-libs-1.02.117-7.el6.x86_64.rpm
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-libs-1.02.117-7.el6.i686.rpm
　　wget http://mirrors.163.com/centos/6/os/x86_64/Packages/device-mapper-libs-1.02.117-7.el6.x86_64.rpm
　　

[root@yz6245 device-mapper]# service docker restart

　　Stopping docker:                                           [FAILED]
　　Starting docker:                                   [  OK  ]

[root@yz6245 device-mapper]# docker -d

　　WARN[0000] You are running linux kernel version 2.6.32-220.el6.x86_64, which might be unstable running docker. Please upgrade your kernel to 3.10.0.
　　INFO[0000] Listening for HTTP on unix (/var/run/docker.sock)
　　ERRO[0000] [graphdriver] prior storage driver "devicemapper" failed: Error running DeviceCreate (CreatePool) dm_task_run failed
　　FATA[0000] Error starting daemon: error initializing graphdriver: Error running DeviceCreate (CreatePool) dm_task_run failed
　　

　　还是报错，网上说可能是磁盘空间问题，发现没有异常。

[root@yz6245 device-mapper]#

[root@yz6245 device-mapper]# df

　　Filesystem           1K-blocks      Used Available Use% Mounted on
　　/dev/sda1             41284736   7586236  31601360  20% /
　　tmpfs                  1896576         0   1896576   0% /dev/shm
　　/dev/vda1            309627260    195416 293703700   1% /data0

[root@yz6245 device-mapper]# ll /var/lib/docker/

　　total 8
　　drwx------ 4 root root 4096 Sep 22 20:17 devicemapper
　　drwx------ 2 root root 4096 Sep 22 19:27 tmp

[root@yz6245 device-mapper]# rm -rf  /var/lib/docker/*

[root@yz6245 device-mapper]# service docker restart

　　Stopping docker:                                           [FAILED]
　　Starting docker:                                   [  OK  ]

[root@yz6245 device-mapper]# docker -d

　　WARN[0000] You are running linux kernel version 2.6.32-220.el6.x86_64, which might be unstable running docker. Please upgrade your kernel to 3.10.0.
　　ERRO[0000] [graphdriver] prior storage driver "devicemapper" failed: Error running DeviceCreate (CreatePool) dm_task_run failed
　　FATA[0000] Error starting daemon: error initializing graphdriver: Error running DeviceCreate (CreatePool) dm_task_run failed
　　

　　

　　


-s 是指定使用的文件系统，默认是devicemapper 也可以是vfs 或aufs(ubuntu的）
**  启动docker-daemon不成功，可能是我的线上机器是虚拟机的问题所以加上 -s vfs 就启动成功了。**
　　

　　#如果要追加参数请修改/etc/sysconfig/docker 这个文件 如：加入other_args=" -s vfs"
　　

　　

　　

[root@yz6245 device-mapper]# docker -d -s vfs

　　WARN[0000] You are running linux kernel version 2.6.32-220.el6.x86_64, which might be unstable running docker. Please upgrade your kernel to 3.10.0.
　　INFO[0000] Listening for HTTP on unix (/var/run/docker.sock)
　　WARN[0000] Running modprobe bridge nf_nat failed with message: , error: exit status 1
　　WARN[0000] Your kernel does not support oom control.
　　INFO[0000] Loading containers: start.
　　

　　INFO[0000] Loading containers: done.
　　INFO[0000] Daemon has completed initialization
　　INFO[0000] Docker daemon                                 commit=786b29d/1.7.1 ex
　　

　　

　　

　　#到目前为止已经能正常pull镜像，但是无法正常运行container。

[root@yz6245 ~]# docker  images

　　REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
　　commonms/ansible    latest              b3e0a9dd686a        2 days ago          469.2 MB

[root@yz6245 ~]# docker  run -i -t  commonms/ansible  /bin/bash

　　...
　　...
　　一直卡住不动。待解决。