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Allow filtering of instances by tags in GCE dynamic inventory (#35770)

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* Allow filtering of instances by tags in GCE dynamic inventory

* Optimize instance tags configuration

* Fix for PEP8
This commit is contained in:
Peter Schiffer 2018-03-14 19:09:06 +01:00 • committed by ansibot
commit 8c992ccbc7
2 changed files with 30 additions and 1 deletions
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25
contrib/inventory/gce.py
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@ -222,6 +222,7 @@ class GceInventory(object):
'gce_project_id': '',
'gce_zone': '',
'libcloud_secrets': '',
'instance_tags': '',
'inventory_ip_type': '',
'cache_path': '~/.ansible/tmp',
'cache_max_age': '300'
@ -247,6 +248,16 @@ class GceInventory(object):
if states:
self.instance_states = states.split(',')
# Set the instance_tags filter, env var overrides config from file
# and cli param overrides all
if self.args.instance_tags:
self.instance_tags = self.args.instance_tags
else:
self.instance_tags = os.environ.get(
'GCE_INSTANCE_TAGS', config.get('gce', 'instance_tags'))
if self.instance_tags:
self.instance_tags = self.instance_tags.split(',')
# Caching
cache_path = config.get('cache', 'cache_path')
cache_max_age = config.getint('cache', 'cache_max_age')
@ -338,6 +349,8 @@ class GceInventory(object):
help='List instances (default: True)')
parser.add_argument('--host', action='store',
help='Get all information about an instance')
parser.add_argument('--instance-tags', action='store',
help='Only include instances with this tags, separated by comma')
parser.add_argument('--pretty', action='store_true', default=False,
help='Pretty format (default: False)')
parser.add_argument(
@ -430,6 +443,18 @@ class GceInventory(object):
if self.instance_states and not node.extra['status'] in self.instance_states:
continue
# This check filters on the desired instance tags defined in the
# config file with the instance_tags config option, env var GCE_INSTANCE_TAGS,
# or as the cli param --instance-tags.
#
# If the instance_tags list is _empty_ then _ALL_ instances are returned.
#
# If the instance_tags list is _populated_ then check the current
# instance tags against the instance_tags list. If the instance has
# at least one tag from the instance_tags list, it is returned.
if self.instance_tags and not set(self.instance_tags) & set(node.extra['tags']):
continue
name = node.name
meta["hostvars"][name] = self.node_to_dict(node)