Ubuntu Docker安装及用户分组授权与Docker hub账号使用
我之前用的boot2docker镜像快速实现的Linux轻量提供，现在在Ubuntu上安装docker，网络采用NAT模式（个人比较习惯用此方式，桥接的方式比较麻烦，很多apt安装失败）。有时在Ubuntu安装docker需要耐心，安装过程会比较慢，安装完成后要将Linux用户加到docker用户分组才能正常使用docker命令。
Ubuntu安装Docker
命令：sudo apt-get install -y docker.io
boonya@ubuntu:/usr/local/docker$ sudo apt-get install docker.io
[sudo] password for boonya:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
apparmor aufs-tools cgroupfs-mount git git-man liberror-perl
Suggested packages:
apparmor-profiles apparmor-docs apparmor-utils btrfs-tools debootstrap lxc rinse git-daemon-run git-daemon-sysvinit git-doc git-el git-email git-gui gitk gitweb git-arch git-cvs
git-mediawiki git-svn
The following NEW packages will be installed:
apparmor aufs-tools cgroupfs-mount docker.io git git-man liberror-perl
0 upgraded, 7 newly installed, 0 to remove and 87 not upgraded.
Need to get 8,408 kB of archives.
After this operation, 46.8 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://us.archive.ubuntu.com/ubuntu/ vivid/main apparmor amd64 2.9.1-0ubuntu9 [352 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu/ vivid/universe aufs-tools amd64 1:3.2+20130722-1.1 [92.3 kB]
Get:3 http://us.archive.ubuntu.com/ubuntu/ vivid/universe cgroupfs-mount all 1.1 [4,796 B]
Get:4 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/universe docker.io amd64 1.6.2~dfsg1-1ubuntu4~15.04.1 [4,420 kB]
Get:5 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/universe docker.io amd64 1.6.2~dfsg1-1ubuntu4~15.04.1 [4,420 kB]
Get:6 http://us.archive.ubuntu.com/ubuntu/ vivid/main liberror-perl all 0.17-1.1 [21.1 kB]
Get:7 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main git-man all 1:2.1.4-2.1ubuntu0.1 [701 kB]
Get:8 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main git-man all 1:2.1.4-2.1ubuntu0.1 [701 kB]
Get:9 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main git amd64 1:2.1.4-2.1ubuntu0.1 [2,817 kB]
Get:10 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main git amd64 1:2.1.4-2.1ubuntu0.1 [2,817 kB]
Get:11 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main git amd64 1:2.1.4-2.1ubuntu0.1 [2,817 kB]
Get:12 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main git amd64 1:2.1.4-2.1ubuntu0.1 [2,817 kB]
Get:13 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main git amd64 1:2.1.4-2.1ubuntu0.1 [2,817 kB]
Fetched 6,145 kB in 46min 44s (2,190 B/s)
Preconfiguring packages ...
Selecting previously unselected package apparmor.
(Reading database ... 76408 files and directories currently installed.)
Preparing to unpack .../apparmor_2.9.1-0ubuntu9_amd64.deb ...
Unpacking apparmor (2.9.1-0ubuntu9) ...
Selecting previously unselected package aufs-tools.
Preparing to unpack .../aufs-tools_1%3a3.2+20130722-1.1_amd64.deb ...
Unpacking aufs-tools (1:3.2+20130722-1.1) ...
Selecting previously unselected package cgroupfs-mount.
Preparing to unpack .../cgroupfs-mount_1.1_all.deb ...
Unpacking cgroupfs-mount (1.1) ...
Selecting previously unselected package docker.io.
Preparing to unpack .../docker.io_1.6.2~dfsg1-1ubuntu4~15.04.1_amd64.deb ...
Unpacking docker.io (1.6.2~dfsg1-1ubuntu4~15.04.1) ...
Selecting previously unselected package liberror-perl.
Preparing to unpack .../liberror-perl_0.17-1.1_all.deb ...
Unpacking liberror-perl (0.17-1.1) ...
Selecting previously unselected package git-man.
Preparing to unpack .../git-man_1%3a2.1.4-2.1ubuntu0.1_all.deb ...
Unpacking git-man (1:2.1.4-2.1ubuntu0.1) ...
Selecting previously unselected package git.
Preparing to unpack .../git_1%3a2.1.4-2.1ubuntu0.1_amd64.deb ...
Unpacking git (1:2.1.4-2.1ubuntu0.1) ...
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for systemd (219-7ubuntu3) ...
Setting up apparmor (2.9.1-0ubuntu9) ...
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
insserv: script mysql.server.sh: service mysql already provided!
Setting up aufs-tools (1:3.2+20130722-1.1) ...
Setting up cgroupfs-mount (1.1) ...
insserv: script mysql.server.sh: service mysql already provided!
Setting up docker.io (1.6.2~dfsg1-1ubuntu4~15.04.1) ...
insserv: script mysql.server.sh: service mysql already provided!
Setting up liberror-perl (0.17-1.1) ...
Setting up git-man (1:2.1.4-2.1ubuntu0.1) ...
Setting up git (1:2.1.4-2.1ubuntu0.1) ...
Processing triggers for libc-bin (2.21-0ubuntu4) ...
Docker为当前用户授权
命令：$sudo gpasswd -a ${USER} docker
boonya@ubuntu:/usr/local/docker$ sudo gpasswd -a root docker
Adding user root to group docker
注意：授权后需要重启系统reboot。
boonya@ubuntu:/usr/local/docker$ docker images
FATA[0000] Get http:///var/run/docker.sock/v1.18/images/json: dial unix /var/run/docker.sock: permission denied. Are you trying to connect to a TLS-enabled daemon without TLS? 查看Docker的版本
命令：docker -v | docker --version
root@ubuntu:/home/boonya# docker --version
Docker version 1.6.2, build 7c8fca2
root@ubuntu:/home/boonya#
查看Docker进程
命令：ps -ef | grep docker
root@ubuntu:/home/boonya# ps -ef | grep docker
root 588 1 0 17:13 ? 00:00:20 /usr/bin/docker -d -H fd://
root@ubuntu:/home/boonya#
Docker对容器的启动停止和重启操作
启动已被停止的容器container
命令：docker start container
停止运行中的容器container
命令：docker stop container
重启容器container
命令：docker restart container
Docker Hub账号注册
Docker Hub命令行常用操作
登录
命令：docker login
root@ubuntu:/home/boonya# docker login
Username: boonyadocker
Password:
Email: boonya@sina.com
WARNING: login credentials saved in /root/.dockercfg.
Login Succeeded
root@ubuntu:/home/boonya#
登出
命令：docker logout
root@ubuntu:/home/boonya# docker logout
Remove login credentials for https://index.docker.io/v1/
root@ubuntu:/home/boonya# Push镜像到仓库
命令： docker push id/tag
注意：id必须是注册的账号名称，tag为你的镜像名。
纸上得来终觉浅，绝知此事要躬行。
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