NatGateway

class aws_cdk.aws_ec2_alpha.NatGateway(scope, id, *, vpc=None, subnet, allocation_id=None, connectivity_type=None, max_drain_duration=None, nat_gateway_name=None, private_ip_address=None, secondary_allocation_ids=None, secondary_private_ip_address_count=None, secondary_private_ip_addresses=None)

Bases: Resource

(experimental) Creates a network address translation (NAT) gateway.

Stability:: experimental
Resource:: AWS::EC2::NatGateway
ExampleMetadata:: infused

Example:

my_vpc = VpcV2(self, "Vpc")
route_table = RouteTable(self, "RouteTable",
    vpc=my_vpc
)
subnet = SubnetV2(self, "Subnet",
    vpc=my_vpc,
    availability_zone="eu-west-2a",
    ipv4_cidr_block=IpCidr("10.0.0.0/24"),
    subnet_type=SubnetType.PRIVATE_ISOLATED
)

natgw = NatGateway(self, "NatGW",
    subnet=subnet,
    vpc=my_vpc,
    connectivity_type=NatConnectivityType.PRIVATE,
    private_ip_address="10.0.0.42"
)
Route(self, "NatGwRoute",
    route_table=route_table,
    destination="0.0.0.0/0",
    target={"gateway": natgw}
)

Parameters:

scope (Construct) –
id (str) –
vpc (Optional[IVpcV2]) – (experimental) The ID of the VPC in which the NAT gateway is located. Default: - no elastic ip associated, required in case of public connectivity if AllocationId is not defined
subnet (ISubnetV2) – (experimental) The subnet in which the NAT gateway is located.
allocation_id (Optional[str]) – (experimental) AllocationID of Elastic IP address that’s associated with the NAT gateway. This property is required for a public NAT gateway and cannot be specified with a private NAT gateway. Default: - attr.allocationID of a new Elastic IP created by default //TODO: ADD L2 for elastic ip
connectivity_type (Optional[NatConnectivityType]) – (experimental) Indicates whether the NAT gateway supports public or private connectivity. Default: NatConnectivityType.Public
max_drain_duration (Optional[Duration]) – (experimental) The maximum amount of time to wait before forcibly releasing the IP addresses if connections are still in progress. Default: 350seconds
nat_gateway_name (Optional[str]) – (experimental) The resource name of the NAT gateway. Default: - NATGW provisioned without any name
private_ip_address (Optional[str]) – (experimental) The private IPv4 address to assign to the NAT gateway. Default: - If you don’t provide an address, a private IPv4 address will be automatically assigned.
secondary_allocation_ids (Optional[Sequence[str]]) – (experimental) Secondary EIP allocation IDs. Default: - no secondary allocation IDs attached to NATGW
secondary_private_ip_address_count (Union[int, float, None]) – (experimental) The number of secondary private IPv4 addresses you want to assign to the NAT gateway. SecondaryPrivateIpAddressCount and SecondaryPrivateIpAddresses cannot be set at the same time. Default: - no secondary allocation IDs associated with NATGW
secondary_private_ip_addresses (Optional[Sequence[str]]) – (experimental) Secondary private IPv4 addresses. SecondaryPrivateIpAddressCount and SecondaryPrivateIpAddresses cannot be set at the same time. Default: - no secondary private IpAddresses associated with NATGW

Stability:

experimental

Methods

apply_removal_policy(policy)

Apply the given removal policy to this resource.

The Removal Policy controls what happens to this resource when it stops being managed by CloudFormation, either because you’ve removed it from the CDK application or because you’ve made a change that requires the resource to be replaced.

The resource can be deleted (RemovalPolicy.DESTROY), or left in your AWS account for data recovery and cleanup later (RemovalPolicy.RETAIN).

Parameters:

policy (RemovalPolicy) –

Return type:

None

to_string()

Returns a string representation of this construct.

Return type:: str

Attributes

connectivity_type

(experimental) Indicates whether the NAT gateway supports public or private connectivity.

Default:: public
Stability:: experimental

env

The environment this resource belongs to.

For resources that are created and managed by the CDK (generally, those created by creating new class instances like Role, Bucket, etc.), this is always the same as the environment of the stack they belong to; however, for imported resources (those obtained from static methods like fromRoleArn, fromBucketName, etc.), that might be different than the stack they were imported into.

max_drain_duration

(experimental) The maximum amount of time to wait before forcibly releasing the IP addresses if connections are still in progress.

Default:: ‘350 seconds’
Stability:: experimental

node: The tree node.

resource

(experimental) The NAT gateway CFN resource.

Stability:: experimental

router_target_id

(experimental) The ID of the route target.

Stability:: experimental

router_type

(experimental) The type of router used in the route.

Stability:: experimental

stack: The stack in which this resource is defined.

Static Methods

classmethod is_construct(x)

Checks if x is a construct.

Use this method instead of instanceof to properly detect Construct instances, even when the construct library is symlinked.

Explanation: in JavaScript, multiple copies of the constructs library on disk are seen as independent, completely different libraries. As a consequence, the class Construct in each copy of the constructs library is seen as a different class, and an instance of one class will not test as instanceof the other class. npm install will not create installations like this, but users may manually symlink construct libraries together or use a monorepo tool: in those cases, multiple copies of the constructs library can be accidentally installed, and instanceof will behave unpredictably. It is safest to avoid using instanceof, and using this type-testing method instead.

Parameters:: x (Any) – Any object.
Return type:: bool
Returns:: true if x is an object created from a class which extends Construct.

classmethod is_owned_resource(construct)

Returns true if the construct was created by CDK, and false otherwise.

Parameters:

construct (IConstruct) –

Return type:

bool

classmethod is_resource(construct)

Check whether the given construct is a Resource.

Parameters:

construct (IConstruct) –

Return type:

bool