ubuntu 如何安装docker不同版本

记录ubuntu安装过程，首先是官网文档

If you haven’t already done so, log into your Ubuntu instance.

Open a terminal window.

Add the new 

gpg

 key.

$ apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

Open the 

/etc/apt/sources.list.d/docker.list

 file in your favorite editor.

If the file doesn’t exist, create it.

Remove any existing entries.

Add an entry for your Ubuntu operating system.

The possible entries are:

# Ubuntu Precise
deb https://apt.dockerproject.org/repo ubuntu-precise main
# Ubuntu Trusty
deb https://apt.dockerproject.org/repo ubuntu-trusty main
# Ubuntu Vivid
deb https://apt.dockerproject.org/repo ubuntu-vivid main
# Ubuntu Wily
deb https://apt.dockerproject.org/repo ubuntu-wily main

Save and close the 

/etc/apt/sources.list.d/docker.list

 file.

Update the 

apt

 package index.

$ apt-get update

Purge the old repo if it exists.

$ apt-get purge lxc-docker*

Verify that 

apt

 is pulling from the right repository.

$ apt-cache policy docker-engine

 

~# apt-cache policy docker-engine
docker-engine:
Installed: 1.8.3-0~precise
Candidate: 1.8.3-0~wily
Version table:
1.8.3-0~wily 0
500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
1.8.3-0~vivid 0
500 https://apt.dockerproject.org/repo/ ubuntu-vivid/main amd64 Packages
1.8.3-0~trusty 0
500 https://apt.dockerproject.org/repo/ ubuntu-trusty/main amd64 Packages
*** 1.8.3-0~precise 0
500 https://apt.dockerproject.org/repo/ ubuntu-precise/main amd64 Packages
100 /var/lib/dpkg/status
1.8.2-0~wily 0
500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
1.8.2-0~vivid 0
500 https://apt.dockerproject.org/repo/ ubuntu-vivid/main amd64 Packages
1.8.2-0~trusty 0
500 https://apt.dockerproject.org/repo/ ubuntu-trusty/main amd64 Packages
1.8.2-0~precise 0
500 https://apt.dockerproject.org/repo/ ubuntu-precise/main amd64 Packages
1.8.1-0~wily 0
500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
1.8.1-0~vivid 0
500 https://apt.dockerproject.org/repo/ ubuntu-vivid/main amd64 Packages
1.8.1-0~trusty 0
500 https://apt.dockerproject.org/repo/ ubuntu-trusty/main amd64 Packages
1.8.1-0~precise 0
500 https://apt.dockerproject.org/repo/ ubuntu-precise/main amd64 Packages
1.8.0-0~wily 0
500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
1.8.0-0~vivid 0
500 https://apt.dockerproject.org/repo/ ubuntu-vivid/main amd64 Packages
1.8.0-0~trusty 0
500 https://apt.dockerproject.org/repo/ ubuntu-trusty/main amd64 Packages
1.8.0-0~precise 0
500 https://apt.dockerproject.org/repo/ ubuntu-precise/main amd64 Packages
1.7.1-0~wily 0
500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
1.7.1-0~vivid 0
500 https://apt.dockerproject.org/repo/ ubuntu-vivid/main amd64 Packages
1.7.1-0~trusty 0
500 https://apt.dockerproject.org/repo/ ubuntu-trusty/main amd64 Packages
1.7.1-0~precise 0
500 https://apt.dockerproject.org/repo/ ubuntu-precise/main amd64 Packages
1.7.0-0~vivid 0
500 https://apt.dockerproject.org/repo/ ubuntu-vivid/main amd64 Packages
1.7.0-0~trusty 0
500 https://apt.dockerproject.org/repo/ ubuntu-trusty/main amd64 Packages

 

最后选定特定发行版的一个docker-engine版本进行安装即可

apt-get install -y docker-engine=1.8.1-0~precise