Grizzly Update
问题1：
When you keystone endpoint-list, hit issue,
(ENVOSTest)[root@localhost bin]# keystone endpoint-list
Failed to load keyring modules.
it missing keyring lib in python, use pip install to fix it.
pip install keyring
Blog http://blog.dynamichosting.biz/category/openstack/ seems not work with yum ways
问题2： 问题已经解决，
由于@wuwenxiang “PKI需要Openssl加密token，估计你没有在配置目录加上ssl的密钥”
[signing]
#token_format = PKI
把PKI改成UUID
refer：https://gist.github.com/4070200
否则会出现problem fulfilling your request. Command ‘openssl’ returned non-zero
问题3：
openstack bug
NameError: global name ‘service_ref’ is not defined
https://bugs.launchpad.net/nova/+bug/1102596