This post will be updated frequently when as I learn more about how to filter AWS resources using Boto3 library.
Filtering VPCs by tags
In this example we want to filter a particular VPC by the "Name" tag with the value of 'webapp01'.
>>> import boto3
>>> boto3.setup_default_session(profile_name='project1')
>>> ec2 = boto3.resource('ec2', region_name='us-west-2')
>>> filters = [{'Name':'tag:Name', 'Values':['webapp01']}]
>>> webapp01 = list(ec2.vpcs.filter(Filters=filters))[0]
>>> webapp01.vpc_id
'vpc-11111111'
You can also filter on the value of the 'tag-key' or the 'tag-value' like so:
>>> taco_key_filter = [{'Name':'tag-key', 'Values':['taco']}]
>>> nacho_value_filter = [{'Name':'tag-value', 'Values':['nacho']}]
You can also filter on multiple 'Values'. In this example want 2 VPCs named 'webapp01' and 'webapp02':
>>> filters = [{'Name':'tag:Name', 'Values':['webapp01','webapp02']}]
>>> list(ec2.vpcs.filter(Filters=filters))
[ec2.Vpc(id='vpc-11111111'), ec2.Vpc(id='vpc-22222222')]
You can also use the '*' wildcard to glob up results in your filter. In this example we want all 3 VPCs named 'webapp01', 'webapp02' and 'webapp03':
>>> filters = [{'Name':'tag:Name', 'Values':['webapp*']}]
>>> list(ec2.vpcs.filter(Filters=filters))
[ec2.Vpc(id='vpc-11111111'), ec2.Vpc(id='vpc-22222222'), ec2.Vpc(id='vpc-33333333')]
Thats all for now!
You should read my other Boto related posts for tricks to impress your friends. : )