Ubuntu 12.04 源里的Openstack包

这次调整比较大。以前openstack的包，都是在universe，就是意味是社区维护。

现在nova，glance，keystone，已经改成main，意味着是Canonical官方维护。这里面区别其实很大。官方维护，就意味着日后的升级什么，基本没有任何问题。

root@node6:~# apt-cache policy nova-compute
nova-compute:
  Installed: (none)
  Candidate: 2012.1-0Ubuntu2
  Version table:
     2012.1-0ubuntu2 0
        500 http://cn.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
root@node6:~# apt-cache policy glance
glance:
  Installed: (none)
  Candidate: 2012.1-0ubuntu2
  Version table:
     2012.1-0ubuntu2 0
        500 http://cn.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
root@node6:~# apt-cache policy keystone
keystone:
  Installed: (none)
  Candidate: 2012.1-0ubuntu1
  Version table:
     2012.1-0ubuntu1 0
        500 http://cn.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
root@node6:~# apt-cache policy openstack-dashboard
openstack-dashboard:
  Installed: (none)
  Candidate: 2012.1-0ubuntu4
  Version table:
     2012.1-0ubuntu4 0
        500 http://cn.archive.ubuntu.com/ubuntu/ precise/universe amd64 Packages
root@node6:~# apt-cache policy swift
swift:
  Installed: (none)
  Candidate: 1.4.8-0ubuntu2
  Version table:
     1.4.8-0ubuntu2 0
        500 http://cn.archive.ubuntu.com/ubuntu/ precise/universe amd64 Packages