Allow loading of product/vendor/package info from external file

Currently the version.py file hardcodes some basic info for
the NOVA_PRODUCT, NOVA_VENDOR and NOVA_PACKAGE constants. It
is desirable that OS distro vendors can override/extend this
data in packages they ship. Cloud providers may also desire
to do the same. This allows Nova to optionally load this
data from a /etc/nova/release file. That file should contain
the data in a trivial "ini" format. For example:

  [Nova]
  vendor = Fedora Project
  package = 1.fc18

Note that vendor sare not required to override all strings.
In this example, the 'product' field is not set, leaving
it on the default 'OpenStack Nova' value.

Change-Id: I3d8d32eaf35268c4b0908b0a93b7c9a2ea9c580a
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/etc/nova/release.sample b/etc/nova/release.sample
new file mode 100644
index 000000000..4c0d8e48e
--- /dev/null
+++ b/etc/nova/release.sample
@@ -0,0 +1,4 @@
+[Nova]
+vendor = Fedora Project
+product = OpenStack Nova
+package = 1.fc18