Created
February 6, 2017 22:09
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Audit unused security group rules
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| import boto3 | |
| from pprint import pprint | |
| client = boto3.client('ec2',region_name='us-west-2') | |
| interfaces = client.describe_network_interfaces() | |
| sgs_in_use = [] | |
| for interface in interfaces['NetworkInterfaces']: | |
| for group in interface['Groups']: | |
| if group['GroupId'] not in sgs_in_use: | |
| sgs_in_use.append(group['GroupId']) | |
| sgs_not_in_use = [] | |
| security_groups = client.describe_security_groups() | |
| for sg in security_groups['SecurityGroups']: | |
| if sg['GroupId'] not in sgs_in_use: | |
| sgs_not_in_use.append(sg['GroupId']) | |
| print('SGs not in use') | |
| pprint(sgs_not_in_use) | |
| print('SGs that are in use') | |
| pprint(sgs_in_use) |
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Example output:
SGs not in use
['sg-0a0ec96c',
'sg-334b4855',
'sg-47ccea21',
'sg-51380837',
'sg-60329f19',
'sg-63329f1a',
'sg-71aa2708',
'sg-79d57d1e',
'sg-b59b13cd',
'sg-d8e85da1',
'sg-dae85da3',
'sg-dde85da4',
'sg-e1e85d98',
'sg-e4e85d9d',
'sg-e7e85d9e',
'sg-e8e85d91',
'sg-eae85d93',
'sg-eee85d97',
'sg-f5e85d8c',
'sg-f9e85d80',
'sg-fae85d83',
'sg-fbe85d82',
'sg-fc9c1484',
'sg-fee85d87']
SGs that are in use
['sg-0e557b6b',
'sg-5ca28c39',
'sg-63547a06',
'sg-a05082c7',
'sg-5e7e8338',
'sg-6028fc07']
[Finished in 0.567s]