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authorRick Harris <rconradharris@gmail.com>2012-07-20 22:35:10 +0000
committerRick Harris <rconradharris@gmail.com>2012-07-20 22:41:16 +0000
commitae7adbb92babf2dfc928daa76474aaba8e325d9c (patch)
treed77f21aa63cf2df38e2fcf616c18df3456a4376b /nova/flags.py
parent9c71217c97dbbd27224eac4301d1b6074c04f367 (diff)
Adds non_inheritable_image_properties flag.
Some image-properties should not be inherited from the instance when taking a snapshot because we want that functionality to only available for the base-image, not subsequent snapshots. As an example, we would like 'cache_in_nova' fast-cloning to be available just for base-images and not customer snapshots created off a base-image. This patch adds a new configuration which allows operators to, at runtime, select which image-properties should not be inherited by newly created snapshots. Change-Id: I8d7781b05ffd71a59ba69fb7c3df4616cba94cce
Diffstat (limited to 'nova/flags.py')
-rw-r--r--nova/flags.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/nova/flags.py b/nova/flags.py
index 5291f08f1..23e42bd30 100644
--- a/nova/flags.py
+++ b/nova/flags.py
@@ -414,6 +414,10 @@ global_opts = [
cfg.StrOpt('auth_strategy',
default='noauth',
help='The strategy to use for auth: noauth or keystone.'),
+ cfg.ListOpt('non_inheritable_image_properties',
+ default=['cache_in_nova'],
+ help='These are image properties which a snapshot should not'
+ ' inherit from an instance'),
]
FLAGS.register_opts(global_opts)