Created
May 24, 2018 17:10
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Create routes from an AWS VPC to a Virtual Private Gateway.
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| #!/usr/bin/env python | |
| # | |
| # https://boto3.readthedocs.io/en/latest/reference/services/ec2.html | |
| # | |
| import argparse | |
| import boto3 | |
| client = boto3.client("ec2") | |
| def parse_args(): | |
| parser = argparse.ArgumentParser( | |
| description='create routes for a peering connection between 2 VPCs') | |
| parser.add_argument('VPC_ID', | |
| type=str, | |
| help='VPC id you want to add routes for') | |
| parser.add_argument('VPG_ID', | |
| type=str, | |
| help='Virtual Private Gateway id you want to add routes for') | |
| parser.add_argument('CIDR', | |
| type=str, | |
| help='CIDR to add routes for, ex: 192.168.0.0/16') | |
| return parser.parse_args() | |
| def get_routetables_by_vpc(vpc_id): | |
| route_list = client.describe_route_tables(Filters=[ | |
| { | |
| "Name": "vpc-id", | |
| "Values": [vpc_id] | |
| } | |
| ]) | |
| if route_list.get('RouteTables'): | |
| return route_list['RouteTables'] | |
| else: | |
| raise Exception("No Route Tables Found for VPC: %s" % vpc_id) | |
| def main(): | |
| args = parse_args() | |
| tables_1 = get_routetables_by_vpc(args.VPC_ID) | |
| print("[*] creating routes...") | |
| # routes VPC to VPG | |
| for table in tables_1: | |
| response = client.create_route( | |
| DestinationCidrBlock=args.CIDR, | |
| DryRun=False, | |
| RouteTableId=table["RouteTableId"], | |
| GatewayId=args.VPG_ID) | |
| print(response) | |
| print("[*] done!") | |
| if __name__ == '__main__': | |
| main() |
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