def __init__(self):
resource_specs = ParseYAML(resource_type).getSpecs()
aws_subnet_id = Subnets.SubnetId()
aws_eip_id = ElasticIPs.ElasticIPId()
for natgw_name, natgw_configuration in resource_specs.items():
# AWS NAT Gateway Variables
resource_name = natgw_name
resource_subnet = natgw_configuration["subnet"]
resource_eip = natgw_configuration["elastic_ip"]
resource_tags = None
resource_tags = natgw_configuration[
"tags"] if "tags" in natgw_configuration else None
# Getting list of tags from configuration file
tags_list = {}
if resource_tags is not None:
for each_tag_name, each_tag_value in resource_tags.items():
tags_list.update({each_tag_name: each_tag_value})
# Adding mandatory tags
tags_list.update({"Name": resource_name})
tags_list.update({
"Project/Stack":
pulumi.get_project() + "/" + pulumi.get_stack()
})
tags_list.update(resource_mandatory_tags)
this_subnet = aws_subnet_id[str(resource_subnet)]
this_eip = aws_eip_id[str(resource_eip)]
aws_natgw = net.NatGateway(resource_name,
subnet_id=this_subnet,
allocation_id=this_eip,
tags=tags_list)
# Update resource dictionaries
natgw_ids_dict.update({aws_natgw._name: aws_natgw.id})
# Export
pulumi.export(aws_natgw._name, aws_natgw.id)
def _create_private_subnet_route_table(self, public_subnet_id, vpcid):
eip_name = "%s-nat-eip" % self.name
nat_name = "%s-nat" % self.name
eip = ec2.Eip(eip_name, __opts__=ResourceOptions(parent=self))
nat_gateway = ec2.NatGateway(nat_name,
subnet_id=public_subnet_id,
allocation_id=eip.id,
tags=self.vpc_tags,
__opts__=ResourceOptions(parent=self))
rt_name = "%s-private-rt" % self.name
private_route_table = ec2.RouteTable(
rt_name,
vpc_id=vpcid,
routes=[{
"cidrBlock": "0.0.0.0/0",
"gatewayId": nat_gateway.id
}],
__opts__=ResourceOptions(parent=self))
return private_route_table.id
def __init__(self,
name: str,
args: VpcArgs,
opts: pulumi.ResourceOptions = None):
"""
Constructs a Vpc.
:param name: The Pulumi resource name. Child resource names are constructed based on this.
:param args: A VpcArgs object containing the arguments for VPC constructin.
:param opts: A pulumi.ResourceOptions object.
"""
super().__init__('Vpc', name, None, opts)
# Make base info available to other methods
self.name = name
self.description = args.description
self.base_tags = args.base_tags
# Create VPC and Internet Gateway resources
self.vpc = ec2.Vpc(f"{name}-vpc",
cidr_block=args.base_cidr,
enable_dns_hostnames=True,
enable_dns_support=True,
tags={
**args.base_tags, "Name":
f"{args.description} VPC"
},
opts=pulumi.ResourceOptions(parent=self, ))
self.internet_gateway = ec2.InternetGateway(
f"{name}-igw",
vpc_id=self.vpc.id,
tags={
**args.base_tags, "Name":
f"{args.description} VPC Internet Gateway"
},
opts=pulumi.ResourceOptions(parent=self.vpc, ))
# Calculate subnet CIDR blocks and create subnets
subnet_distributor = SubnetDistributor(
args.base_cidr, len(args.availability_zone_names))
self.public_subnets = [
ec2.Subnet(f"{name}-public-subnet-{i}",
vpc_id=self.vpc.id,
cidr_block=cidr,
availability_zone=args.availability_zone_names[i],
map_public_ip_on_launch=True,
tags={
**args.base_tags, "Name":
f"${args.description} Public Subnet {i}"
},
opts=pulumi.ResourceOptions(parent=self.vpc, ))
for i, cidr in enumerate(subnet_distributor.public_subnets)
]
self.private_subnets = [
ec2.Subnet(f"{name}-private-subnet-{i}",
vpc_id=self.vpc.id,
cidr_block=cidr,
availability_zone=args.availability_zone_names[i],
tags={
**args.base_tags, "Name":
f"${args.description} Private Subnet {i}"
},
opts=pulumi.ResourceOptions(parent=self.vpc, ))
for i, cidr in enumerate(subnet_distributor.private_subnets)
]
# Adopt the default route table for this VPC and adapt it for use with public subnets
self.public_route_table = ec2.DefaultRouteTable(
f"{name}-public-rt",
default_route_table_id=self.vpc.default_route_table_id,
tags={
**args.base_tags, "Name":
f"${args.description} Public Route Table"
},
opts=pulumi.ResourceOptions(parent=self.vpc, ))
ec2.Route(f"{name}-route-public-sn-to-ig",
route_table_id=self.public_route_table.id,
destination_cidr_block="0.0.0.0/0",
gateway_id=self.internet_gateway.id,
opts=pulumi.ResourceOptions(parent=self.public_route_table))
for i, subnet in enumerate(self.public_subnets):
ec2.RouteTableAssociation(
f"{name}-public-rta-{i + 1}",
subnet_id=subnet.id,
route_table_id=self.public_route_table,
opts=pulumi.ResourceOptions(parent=self.public_route_table))
self.nat_elastic_ip_addresses: [ec2.Eip] = list()
self.nat_gateways: [ec2.NatGateway] = list()
self.private_route_tables: [ec2.RouteTable] = list()
# Create a NAT Gateway and appropriate route table for each private subnet
for i, subnet in enumerate(self.private_subnets):
self.nat_elastic_ip_addresses.append(
ec2.Eip(f"{name}-nat-{i + 1}",
tags={
**args.base_tags, "Name":
f"{args.description} NAT Gateway EIP {i + 1}"
},
opts=pulumi.ResourceOptions(parent=subnet)))
self.nat_gateways.append(
ec2.NatGateway(
f"{name}-nat-gateway-{i + 1}",
allocation_id=self.nat_elastic_ip_addresses[i].id,
subnet_id=self.public_subnets[i].id,
tags={
**args.base_tags, "Name":
f"{args.description} NAT Gateway {i + 1}"
},
opts=pulumi.ResourceOptions(parent=subnet)))
self.private_route_tables.append(
ec2.RouteTable(f"{name}-private-rt-{i + 1}",
vpc_id=self.vpc.id,
tags={
**args.base_tags, "Name":
f"{args.description} Private RT {i + 1}"
},
opts=pulumi.ResourceOptions(parent=subnet)))
ec2.Route(f"{name}-route-private-sn-to-nat-{i + 1}",
route_table_id=self.private_route_tables[i].id,
destination_cidr_block="0.0.0.0/0",
nat_gateway_id=self.nat_gateways[i].id,
opts=pulumi.ResourceOptions(
parent=self.private_route_tables[i]))
ec2.RouteTableAssociation(
f"{name}-private-rta-{i + 1}",
subnet_id=subnet.id,
route_table_id=self.private_route_tables[i].id,
opts=pulumi.ResourceOptions(
parent=self.private_route_tables[i]))
# Create S3 endpoint if necessary
if args.create_s3_endpoint:
ec2.VpcEndpoint(f"{name}-s3-endpoint",
vpc_id=self.vpc.id,
service_name=f"com.amazonaws.{config.region}.s3",
route_table_ids=[
self.public_route_table.id,
*[rt.id for rt in self.private_route_tables]
],
opts=pulumi.ResourceOptions(parent=self.vpc))
# Create DynamoDB endpoint if necessary
if args.create_dynamodb_endpoint:
ec2.VpcEndpoint(
f"{name}-dynamodb-endpoint",
vpc_id=self.vpc.id,
service_name=f"com.amazonaws.{config.region}.dynamodb",
route_table_ids=[
self.public_route_table.id,
*[rt.id for rt in self.private_route_tables]
],
opts=pulumi.ResourceOptions(parent=self.vpc))
super().register_outputs({})
'Creator': 'timc'
})
nat_eip = ec2.Eip(
resource_name='new-nat-eip',
# not using `associate_with_private_ip` because I don't have access to the private IP
vpc=True,
tags={
'Name': 'infra nat eip (front-back-autoscaling)',
'Creator': 'timc'
})
nat_gw = ec2.NatGateway(resource_name='new-nat-gw',
allocation_id=nat_eip.id,
subnet_id=public_subnet_1.id,
tags={
'Name': 'infra nat gw (front-back-autoscaling)',
'Creator': 'timc'
})
private_subnet_rta_1 = ec2.RouteTableAssociation(
resource_name='new-private-subnet-rta-1',
route_table_id=private_subnet_rt.id,
subnet_id=private_subnet_1.id)
private_subnet_rta_2 = ec2.RouteTableAssociation(
resource_name='new-private-subnet-rta-2',
route_table_id=private_subnet_rt.id,
subnet_id=private_subnet_2.id)
# TODO remove reference to internet gateway ; can't have two default routes anyway
def _create_subnet(self, network_name, public_route_table, az_id):
"""
Creates a subnet in the network with the given name and using the
given public route table to access the internet. The new subnet
is created in the AZ with the given AZ index.
:param network_name: The name of the network being created
:param public_route_table: The route table to connect this subnet to the internet
:param az_id: The AZ ID for this new subnet
:return: A tuple of a public route table that this subnet will use to connect to the
internet and the new subnet itself. If this subnet is private, the route table will
point to a public NAT gateway that is connected to the new private subnet.
"""
# type: (str, ec2.RouteTable, int) -> (ec2.RouteTable, ec2.Subnet)
subnet_name = "%s-%d" % (network_name, az_id)
# Create the subnet for this AZ - either public or private
subnet = ec2.Subnet(
subnet_name,
vpc_id=self.vpc_id,
availability_zone=get_aws_az(az_id),
cidr_block="10.10.%d.0/24" % az_id,
map_public_ip_on_launch=not self.use_private_subnets,
# Only assign public IP if we are exposing public subnets
tags={
"Name": subnet_name,
},
__opts__=ResourceOptions(parent=self))
# We will use a different route table for this subnet depending on
# whether we are in a public or private subnet
if self.use_private_subnets:
# We need a public subnet for the NAT Gateway
nat_name = "%s-nat-%d" % (network_name, az_id)
nat_gateway_public_subnet = ec2.Subnet(
nat_name,
vpc_id=self.vpc_id,
availability_zone=get_aws_az(az_id),
# Use top half of the subnet space
cidr_block="10.10.%d.0/24" % (az_id + 64),
# Always assign a public IP in NAT subnet
map_public_ip_on_launch=True,
tags={"Name": nat_name},
__opts__=ResourceOptions(parent=self))
# And we need to route traffic from that public subnet to the Internet Gateway
nat_gateway_routes = ec2.RouteTableAssociation(
nat_name,
subnet_id=nat_gateway_public_subnet.id,
route_table_id=public_route_table.id,
__opts__=ResourceOptions(parent=self))
self.public_subnet_ids.append(nat_gateway_public_subnet.id)
# We need an Elastic IP for the NAT Gateway
eip = ec2.Eip(nat_name, __opts__=ResourceOptions(parent=self))
# And we need a NAT Gateway to be able to access the Internet
nat_gateway = ec2.NatGateway(
nat_name,
subnet_id=nat_gateway_public_subnet.id,
allocation_id=eip.id,
tags={"Name": nat_name},
__opts__=ResourceOptions(parent=self,
depends_on=[nat_gateway_routes]))
nat_route_table = ec2.RouteTable(
nat_name,
vpc_id=self.vpc_id,
routes=[{
"cidrBlock": "0.0.0.0/0",
"natGatewayId": nat_gateway.id
}],
tags={"Name": network_name},
__opts__=ResourceOptions(parent=self))
# Route through the NAT gateway for the private subnet
return nat_route_table, subnet
self.public_subnet_ids.append(subnet.id)
return public_route_table, subnet
def setup_vpc():
# Create a VPC
vpc_config = Config().require_object("vpc_config")
vpc = ec2.Vpc("chatapp-vpc",
cidr_block=vpc_config['cidr'],
enable_dns_hostnames=True,
enable_dns_support=True)
# Create public subnet to place NGW
public_subnet = ec2.Subnet("PublicSubnet",
vpc_id=vpc.id,
cidr_block=vpc_config['public_subnet_cidr'],
availability_zone="ap-southeast-1a")
# Create private subnets 1 and 2 for rds and redis clusters
private_subnet_1 = ec2.Subnet(
"PrivateSubnet1",
vpc_id=vpc.id,
cidr_block=vpc_config['private_subnet_1_cidr'],
availability_zone="ap-southeast-1b")
private_subnet_2 = ec2.Subnet(
"PrivateSubnet2",
vpc_id=vpc.id,
cidr_block=vpc_config['private_subnet_2_cidr'],
availability_zone="ap-southeast-1c")
# Create internet gateway
inet_gw = ec2.InternetGateway(
"inet-gateway",
vpc_id=vpc.id,
)
# create NAT gateway
elastic_ip = ec2.Eip("eip1",
opts=ResourceOptions(delete_before_replace=True))
nat_gw = ec2.NatGateway("nat-gateway",
subnet_id=public_subnet.id,
allocation_id=elastic_ip.id)
# Create private routed route-table
private_subnet_route_table = ec2.RouteTable("privatesubnetroutetable",
routes=[{
"cidr_block": "0.0.0.0/0",
"gateway_id": nat_gw.id
}],
vpc_id=vpc.id)
# Create public routed route-table
public_subnet_route_table = ec2.RouteTable("publicsubnetroutetable",
routes=[{
"cidr_block": "0.0.0.0/0",
"gateway_id": inet_gw.id
}],
vpc_id=vpc.id)
# Attach route tables to subnets
ec2.RouteTableAssociation("PrivateSubnetRT1",
subnet_id=private_subnet_1.id,
route_table_id=private_subnet_route_table.id)
ec2.RouteTableAssociation("PrivateSubnetRT2",
subnet_id=private_subnet_2.id,
route_table_id=private_subnet_route_table.id)
ec2.RouteTableAssociation("PublicSubnetRT",
subnet_id=public_subnet.id,
route_table_id=public_subnet_route_table.id)
return dict(vpc=vpc, private_subnets=[private_subnet_1, private_subnet_2])
rtb_privs = []
if not ha:
eip = ec2.Eip(
f"{APP}-eip0",
vpc=True,
tags={
'Name': f"{APP}-eip0",
'Environment': _env
}
)
ngw = ec2.NatGateway(
f"{APP}-ngw0",
allocation_id=eip.id,
subnet_id=subnets["public"][0],
tags={
'Name': f"{APP}-ngw0",
'Environment': _env
}
)
rtb_priv = ec2.RouteTable(
f"{APP}-rtb-priv0",
vpc_id=vpc.id,
tags={
'Name': 'rtb-priv',
'Environment': _env
}
)
rtb_privs.append(rtb_priv)
rte_priv = ec2.Route(
f"{APP}-rte-priv0",
#### private stuff
private_subnet = ec2.Subnet(
f"pulumi-private-subnet-{zone}",
assign_ipv6_address_on_creation=False,
vpc_id=vpc.id,
map_public_ip_on_launch=False,
cidr_block=private_subnet_cidr,
availability_zone=zone,
tags={"Name": f"pulumi-private-subnet-{zone}"},
)
eip = ec2.Eip(f"pulumi-eip-{zone}", tags={"Name": f"pulumi-eip-{zone}"})
nat_gateway = ec2.NatGateway(
f"pulumi-natgw-{zone}",
subnet_id=public_subnet.id,
allocation_id=eip.id,
tags={"Name": f"pulumi-natgw-{zone}"},
)
private_rt = ec2.RouteTable(
f"pulumi-private-rt-{zone}",
vpc_id=vpc.id,
routes=[{
"cidr_block": "0.0.0.0/0",
"gateway_id": nat_gateway.id
}],
tags={"Name": f"pulumi-private-rt-{zone}"},
)
ec2.RouteTableAssociation(
f"pulumi-private-rta-{zone}",
route_table_id=private_rt.id,
subnet_id=private_subnet.id,
def __init__(
self,
name,
opts=None,
):
super().__init__("nuage:aws:DevelopmentEnvironment:VPC",
f"{name}VpcEnvironment", None, opts)
vpc = ec2.Vpc(
f"{name}Vpc",
cidr_block="172.32.0.0/16",
enable_dns_hostnames=True,
enable_dns_support=True,
)
subnet_1 = ec2.Subnet(
f"{name}VpcSubnetA",
availability_zone="eu-west-1a",
vpc_id=vpc.id,
cidr_block="172.32.0.0/20",
opts=ResourceOptions(depends_on=[vpc]),
)
subnet_2 = ec2.Subnet(
f"{name}VpcSubnetB",
availability_zone="eu-west-1b",
vpc_id=vpc.id,
cidr_block="172.32.16.0/20",
opts=ResourceOptions(depends_on=[vpc]),
)
subnet_3 = ec2.Subnet(
f"{name}VpcSubnetC",
availability_zone="eu-west-1c",
vpc_id=vpc.id,
cidr_block="172.32.32.0/20",
opts=ResourceOptions(depends_on=[vpc]),
)
private_subnet_1 = ec2.Subnet(
f"{name}VpcPrivateSubnetA",
availability_zone="eu-west-1a",
vpc_id=vpc.id,
cidr_block="172.32.48.0/20",
opts=ResourceOptions(depends_on=[vpc]),
)
security_group = ec2.SecurityGroup(
f"{name}SecurityGroup",
vpc_id=vpc.id,
opts=ResourceOptions(depends_on=[vpc]),
)
security_group_rule = ec2.SecurityGroupRule(
f"{name}SSHRule",
security_group_id=security_group.id,
type="ingress",
protocol="tcp",
from_port=22,
to_port=22,
cidr_blocks=["0.0.0.0/0"],
)
security_group_rule = ec2.SecurityGroupRule(
f"{name}InboundRule",
security_group_id=security_group.id,
type="ingress",
protocol="all",
from_port=0,
to_port=65535,
source_security_group_id=security_group.id,
)
security_group_rule = ec2.SecurityGroupRule(
f"{name}OutboundRule",
security_group_id=security_group.id,
type="egress",
protocol="all",
from_port=0,
to_port=65535,
cidr_blocks=["0.0.0.0/0"],
)
subnets = [subnet_1, subnet_2, subnet_3]
gateway = ec2.InternetGateway(
f"{name}InternetGateway",
vpc_id=vpc.id,
opts=ResourceOptions(depends_on=[vpc]),
)
gateway_route = ec2.Route(
f"{name}GatewayRoute",
destination_cidr_block="0.0.0.0/0",
gateway_id=gateway.id,
route_table_id=vpc.default_route_table_id,
)
elastic_ip = ec2.Eip(f"{name}Eip",
vpc=True,
opts=ResourceOptions(depends_on=[gateway]))
nat_gateway = ec2.NatGateway(
f"{name}NatGateway",
subnet_id=subnet_1.id,
allocation_id=elastic_ip.id,
opts=ResourceOptions(depends_on=[subnet_1, elastic_ip]),
)
private_route_table = ec2.RouteTable(
f"{name}PrivateRouteTable",
routes=[
{
"cidr_block": "0.0.0.0/0",
"nat_gateway_id": nat_gateway.id,
},
],
vpc_id=vpc.id,
opts=ResourceOptions(depends_on=[private_subnet_1]),
)
private_route_table_assoc = ec2.RouteTableAssociation(
f"{name}PrivateRouteTableAssoc",
route_table_id=private_route_table.id,
subnet_id=private_subnet_1.id,
)
outputs = {
"vpc": vpc,
"security_group": security_group,
"public_subnets": [subnet_1, subnet_2, subnet_3],
"private_subnet": private_subnet_1,
"nat_gateway": nat_gateway,
}
self.set_outputs(outputs)
