vpc.py

class VPC:
    def __init__(self,
                 name: str,
                 options: VPCOptions):
        self.name = name
        self._options = options
        self._manage()
        self._manage_hosted_domain()
        self._manage_igw()
        self._manage_subnets()
        self._manage_natgw()

    def _manage(self):
        self.vpc = ec2.Vpc(self.name,
                cidr_block = self._options.cidr_block,
                tags = merge_tags_with_name(self.name, self._options.tags))

    def _manage_hosted_domain(self):
        if self._options.create_route53_zone:
            zone_name = f'{self.name}.{self._options.region}.internal'
            route53.Zone(zone_name,
                         name=zone_name,
                         vpcs=[{
                             'vpc_id': self.vpc.id,
                         }])

    def _manage_igw(self):
        name = f'{self.name}-igw'
        print(f'VPC ID before ec2.InternetGateway: {self.vpc.id}')
        ec2.InternetGateway(name,
                            tags=merge_tags_with_name(name, self._options.tags),
                            vpc_id=self.vpc.id)

    def _manage_natgw(self):
        name = f'{self.name}-natgw'
        print(f'VPC ID before deriving subnets for ec2.NatGateway: {self.vpc.id}')

        subnets = ec2.get_subnet_ids(vpc_id=self.vpc)

    def _manage_subnets(self):
        for subnet in subnet_generator(self._options.cidr_block, self._options.subnets):
            name = subnet.get('name')
            ec2.Subnet(name,
                availability_zone=subnet.get('availability_zone'),
                cidr_block=subnet.get('cidr_block'),
                tags=merge_tags_with_name(name, self._options.tags),
                vpc_id=self.vpc.id)