AWS EC2 List All Resources for Pre-Defined Regions

ec2-list-instances-all-regions.py

import boto3

regions = frozenset([
    'us-east-1',
    'us-east-2',
    'us-west-1',
    'us-west-2',
    'eu-central-1',
    'eu-west-1',
    'eu-west-2',
    'ca-central-1',
    'ap-south-1',
    'ap-southeast-1',
    'ap-southeast-2',
    'ap-northeast-1',
    'ap-northeast-2',
    'sa-east-1',
])


def get_tag(name, tags):
    for t in tags:
        if t['Key'] == name:
            return t['Value']
    return 'NIL'

session = boto3.Session(profile_name='default')

for r in regions:
    ec2 = session.client('ec2', region_name=r)
    response = ec2.describe_instances()

    try:
        instances = response['Reservations']
    except:
        instances = []

    for i in instances:
        vm = i['Instances'][0]
        print(
            ','.join([
                r,
                vm['InstanceId'],
                vm['InstanceType'],
                vm['ImageId'],
                vm.get('KeyName', 'NIL'),
                get_tag('Name', vm['Tags']),
            ])
        )