It seems there is nothing along the lines of /etc/release to tell us what version of nova-compute we are actually running, but you can extract the required information. On the compute host:
[root@compute-1 ~]# nova-manage shell python
Python 2.6.6 (r266:84292, Jan 22 2014, 09:42:36)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from nova import version
>>> version.version_string()
'2013.1'
>>>
Python 2.6.6 (r266:84292, Jan 22 2014, 09:42:36)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from nova import version
>>> version.version_string()
'2013.1'
>>>
