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Add support for tags and instance attributes for destination variable for the ec2 dynamic inventory. (#29033)

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Kenny Woodson 2017-10-24 16:09:59 -04:00 committed by Sloane Hertel
parent 8a9a9b84dd
commit c4af03118b
1 changed files with 40 additions and 1 deletions
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41
contrib/inventory/ec2.py
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@ -101,6 +101,31 @@ variable named:
Security groups are comma-separated in 'ec2_security_group_ids' and
'ec2_security_group_names'.
When destination_format and destination_format_tags are specified
the destination_format can be built from the instance tags and attributes.
The behavior will first check the user defined tags, then proceed to
check instance attributes, and finally if neither are found 'nil' will
be used instead.
'my_instance': {
'region': 'us-east-1', # attribute
'availability_zone': 'us-east-1a', # attribute
'private_dns_name': '172.31.0.1', # attribute
'ec2_tag_deployment': 'blue', # tag
'ec2_tag_clusterid': 'ansible', # tag
'ec2_tag_Name': 'webserver', # tag
...
}
Inside of the ec2.ini file the following settings are specified:
...
destination_format: {0}-{1}-{2}-{3}
destination_format_tags: Name,clusterid,deployment,private_dns_name
...
These settings would produce a destination_format as the following:
'webserver-ansible-blue-172.31.0.1'
'''
# (c) 2012, Peter Sankauskas
@ -858,8 +883,22 @@ class Ec2Inventory(object):
return
# Select the best destination address
# When destination_format and destination_format_tags are specified
# the following code will attempt to find the instance tags first,
# then the instance attributes next, and finally if neither are found
# assign nil for the desired destination format attribute.
if self.destination_format and self.destination_format_tags:
dest = self.destination_format.format(*[getattr(instance, 'tags').get(tag, '') for tag in self.destination_format_tags])
dest_vars = []
inst_tags = getattr(instance, 'tags')
for tag in self.destination_format_tags:
if tag in inst_tags:
dest_vars.append(inst_tags[tag])
elif hasattr(instance, tag):
dest_vars.append(getattr(instance, tag))
else:
dest_vars.append('nil')
dest = self.destination_format.format(*dest_vars)
elif instance.subnet_id:
dest = getattr(instance, self.vpc_destination_variable, None)
if dest is None: