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Fixes #16095: Maximumly 199 filter values (#16184)

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When making calls to AWS EC2 api with DescribeTags actiion and if the
number of filter values is greater than or equal to 200, it results in
400 bad request reply and the error message is:
"Error connecting to AWS backend.\n The maximum number of filter values specified on a single call is 200".

The change is so that we call get_all_tags with maximum 199 filter
values one at a time until all are consumed.
This commit is contained in:
bqbn 2016-06-13 08:19:42 -07:00 committed by jctanner
parent 9273e1e7c7
commit 3498b840c9
1 changed files with 6 additions and 1 deletions
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7
contrib/inventory/ec2.py
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@ -527,7 +527,12 @@ class Ec2Inventory(object):
instance_ids = []
for reservation in reservations:
instance_ids.extend([instance.id for instance in reservation.instances])
tags = conn.get_all_tags(filters={'resource-type': 'instance', 'resource-id': instance_ids})
max_filter_value = 199
tags = []
for i in range(0, len(instance_ids), max_filter_value):
tags.extend(conn.get_all_tags(filters={'resource-type': 'instance', 'resource-id': instance_ids[i:i+max_filter_value]}))
tags_by_instance_id = defaultdict(dict)
for tag in tags:
tags_by_instance_id[tag.res_id][tag.name] = tag.value