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v2.273.0

CfnNatGateway L1 construct ​

Specifies a network address translation (NAT) gateway in the specified subnet.

You can create either a public NAT gateway or a private NAT gateway. The default is a public NAT gateway. If you create a public NAT gateway, you must specify an elastic IP address.

With a NAT gateway, instances in a private subnet can connect to the internet, other AWS services, or an on-premises network using the IP address of the NAT gateway. For more information, see NAT gateways in the Amazon VPC User Guide .

If you add a default route ( AWS::EC2::Route resource) that points to a NAT gateway, specify the NAT gateway ID for the route's NatGatewayId property.

When you associate an Elastic IP address or secondary Elastic IP address with a public NAT gateway, the network border group of the Elastic IP address must match the network border group of the Availability Zone (AZ) that the public NAT gateway is in. Otherwise, the NAT gateway fails to launch. You can see the network border group for the AZ by viewing the details of the subnet. Similarly, you can view the network border group for the Elastic IP address by viewing its details. For more information, see Allocate an Elastic IP address in the Amazon VPC User Guide .

Example ​

ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_ec2 as ec2 } from 'aws-cdk-lib';
const cfnNatGateway = new ec2.CfnNatGateway(this, 'MyCfnNatGateway', /* all optional props */ {
  allocationId: 'allocationId',
  availabilityMode: 'availabilityMode',
  availabilityZoneAddresses: [{
    allocationIds: ['allocationIds'],

    // the properties below are optional
    availabilityZone: 'availabilityZone',
    availabilityZoneId: 'availabilityZoneId',
  }],
  connectivityType: 'connectivityType',
  maxDrainDurationSeconds: 123,
  privateIpAddress: 'privateIpAddress',
  secondaryAllocationIds: ['secondaryAllocationIds'],
  secondaryPrivateIpAddressCount: 123,
  secondaryPrivateIpAddresses: ['secondaryPrivateIpAddresses'],
  subnetId: 'subnetId',
  tags: [{
    key: 'key',
    value: 'value',
  }],
  vpcId: 'vpcId',
});
python
from aws_cdk import CfnTag
# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_ec2 as ec2

cfn_nat_gateway = ec2.CfnNatGateway(self, "MyCfnNatGateway",
    allocation_id="allocationId",
    availability_mode="availabilityMode",
    availability_zone_addresses=[ec2.CfnNatGateway.AvailabilityZoneAddressProperty(
        allocation_ids=["allocationIds"],

        # the properties below are optional
        availability_zone="availabilityZone",
        availability_zone_id="availabilityZoneId"
    )],
    connectivity_type="connectivityType",
    max_drain_duration_seconds=123,
    private_ip_address="privateIpAddress",
    secondary_allocation_ids=["secondaryAllocationIds"],
    secondary_private_ip_address_count=123,
    secondary_private_ip_addresses=["secondaryPrivateIpAddresses"],
    subnet_id="subnetId",
    tags=[CfnTag(
        key="key",
        value="value"
    )],
    vpc_id="vpcId"
)
java
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import software.amazon.awscdk.services.ec2.*;

CfnNatGateway cfnNatGateway = CfnNatGateway.Builder.create(this, "MyCfnNatGateway")
        .allocationId("allocationId")
        .availabilityMode("availabilityMode")
        .availabilityZoneAddresses(List.of(AvailabilityZoneAddressProperty.builder()
                .allocationIds(List.of("allocationIds"))

                // the properties below are optional
                .availabilityZone("availabilityZone")
                .availabilityZoneId("availabilityZoneId")
                .build()))
        .connectivityType("connectivityType")
        .maxDrainDurationSeconds(123)
        .privateIpAddress("privateIpAddress")
        .secondaryAllocationIds(List.of("secondaryAllocationIds"))
        .secondaryPrivateIpAddressCount(123)
        .secondaryPrivateIpAddresses(List.of("secondaryPrivateIpAddresses"))
        .subnetId("subnetId")
        .tags(List.of(CfnTag.builder()
                .key("key")
                .value("value")
                .build()))
        .vpcId("vpcId")
        .build();
csharp
// Install: dotnet add package Amazon.CDK.Lib
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
using Amazon.CDK.AWS.EC2;

var cfnNatGateway = new CfnNatGateway(this, "MyCfnNatGateway", new CfnNatGatewayProps {
    AllocationId = "allocationId",
    AvailabilityMode = "availabilityMode",
    AvailabilityZoneAddresses = new [] { new AvailabilityZoneAddressProperty {
        AllocationIds = new [] { "allocationIds" },

        // the properties below are optional
        AvailabilityZone = "availabilityZone",
        AvailabilityZoneId = "availabilityZoneId"
    } },
    ConnectivityType = "connectivityType",
    MaxDrainDurationSeconds = 123,
    PrivateIpAddress = "privateIpAddress",
    SecondaryAllocationIds = new [] { "secondaryAllocationIds" },
    SecondaryPrivateIpAddressCount = 123,
    SecondaryPrivateIpAddresses = new [] { "secondaryPrivateIpAddresses" },
    SubnetId = "subnetId",
    Tags = new [] { new CfnTag {
        Key = "key",
        Value = "value"
    } },
    VpcId = "vpcId"
});
go
// Install: go get github.com/aws/aws-cdk-go/awscdk/v2
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import "github.com/aws/aws-cdk-go/awscdk"

cfnNatGateway := awscdk.Aws_ec2.NewCfnNatGateway(this, jsii.String("MyCfnNatGateway"), &CfnNatGatewayProps{
	AllocationId: jsii.String("allocationId"),
	AvailabilityMode: jsii.String("availabilityMode"),
	AvailabilityZoneAddresses: []interface{}{
		&AvailabilityZoneAddressProperty{
			AllocationIds: []*string{
				jsii.String("allocationIds"),
			},

			// the properties below are optional
			AvailabilityZone: jsii.String("availabilityZone"),
			AvailabilityZoneId: jsii.String("availabilityZoneId"),
		},
	},
	ConnectivityType: jsii.String("connectivityType"),
	MaxDrainDurationSeconds: jsii.Number(123),
	PrivateIpAddress: jsii.String("privateIpAddress"),
	SecondaryAllocationIds: []*string{
		jsii.String("secondaryAllocationIds"),
	},
	SecondaryPrivateIpAddressCount: jsii.Number(123),
	SecondaryPrivateIpAddresses: []*string{
		jsii.String("secondaryPrivateIpAddresses"),
	},
	SubnetId: jsii.String("subnetId"),
	Tags: []CfnTag{
		&CfnTag{
			Key: jsii.String("key"),
			Value: jsii.String("value"),
		},
	},
	VpcId: jsii.String("vpcId"),
})

Initializer ​

ts
new CfnNatGateway(scope: Construct, id: string, props?: CfnNatGatewayProps)
python
CfnNatGateway(scope: Construct, id: str, props: typing.Optional[CfnNatGatewayProps] = None)
java
new CfnNatGateway(Construct scope, String id, CfnNatGatewayProps props)
csharp
new CfnNatGateway(Construct scope, string id, CfnNatGatewayProps? props = null)
go
NewCfnNatGateway(Scope Construct, Id *string, Props CfnNatGatewayProps)

Construct Props ​

allocationIdstring | IEIPRefallocation_idtyping.Union[str, IEIPRef]allocationIdStringAllocationIdstringAllocationIdinterface{}#
[Public NAT gateway only] The allocation ID of the 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.

availabilityModestringavailability_modestravailabilityModeStringAvailabilityModestringAvailabilityMode*string#
Indicates whether this is a zonal (single-AZ) or regional (multi-AZ) NAT gateway.
notes

A zonal NAT gateway is a NAT Gateway that provides redundancy and scalability within a single availability zone. A regional NAT gateway is a single NAT Gateway that works across multiple availability zones (AZs) in your VPC, providing redundancy, scalability and availability across all the AZs in a Region.

For more information, see Regional NAT gateways for automatic multi-AZ expansion in the Amazon VPC User Guide .

availabilityZoneAddressesIResolvable | IResolvable | CfnNatGateway.AvailabilityZoneAddressProperty[]availability_zone_addressestyping.Union[IResolvable, typing.List[typing.Union[IResolvable, AvailabilityZoneAddressProperty]]]availabilityZoneAddressesIResolvableAvailabilityZoneAddressesIResolvableAvailabilityZoneAddressesinterface{}#
For regional NAT gateways only: Specifies which Availability Zones you want the NAT gateway to support and the Elastic IP addresses (EIPs) to use in each AZ.
notes

The regional NAT gateway uses these EIPs to handle outbound NAT traffic from their respective AZs. If not specified, the NAT gateway will automatically expand to new AZs and associate EIPs upon detection of an elastic network interface. If you specify this parameter, auto-expansion is disabled and you must manually manage AZ coverage.

A regional NAT gateway is a single NAT Gateway that works across multiple availability zones (AZs) in your VPC, providing redundancy, scalability and availability across all the AZs in a Region.

For more information, see Regional NAT gateways for automatic multi-AZ expansion in the Amazon VPC User Guide .

connectivityTypestringconnectivity_typestrconnectivityTypeStringConnectivityTypestringConnectivityType*string#
Indicates whether the NAT gateway supports public or private connectivity.

The default is public connectivity.

maxDrainDurationSecondsnumbermax_drain_duration_secondsint | floatmaxDrainDurationSecondsNumberMaxDrainDurationSecondsdoubleMaxDrainDurationSeconds*float64#
The maximum amount of time to wait (in seconds) before forcibly releasing the IP addresses if connections are still in progress.

Default value is 350 seconds.

privateIpAddressstringprivate_ip_addressstrprivateIpAddressStringPrivateIpAddressstringPrivateIpAddress*string#
The private IPv4 address to assign to the NAT gateway.

If you don't provide an address, a private IPv4 address will be automatically assigned.

secondaryAllocationIdsstring[]secondary_allocation_idstyping.List[str]secondaryAllocationIdsList<String>SecondaryAllocationIdsstring[]SecondaryAllocationIds*[]*string#
Secondary EIP allocation IDs.

For more information, see Create a NAT gateway in the Amazon VPC User Guide .

secondaryPrivateIpAddressCountnumbersecondary_private_ip_address_countint | floatsecondaryPrivateIpAddressCountNumberSecondaryPrivateIpAddressCountdoubleSecondaryPrivateIpAddressCount*float64#
[Private NAT gateway only] The number of secondary private IPv4 addresses you want to assign to the NAT gateway.
notes

For more information about secondary addresses, see Create a NAT gateway in the Amazon Virtual Private Cloud User Guide .

SecondaryPrivateIpAddressCount and SecondaryPrivateIpAddresses cannot be set at the same time.

secondaryPrivateIpAddressesstring[]secondary_private_ip_addressestyping.List[str]secondaryPrivateIpAddressesList<String>SecondaryPrivateIpAddressesstring[]SecondaryPrivateIpAddresses*[]*string#
Secondary private IPv4 addresses.
notes

For more information about secondary addresses, see Create a NAT gateway in the Amazon Virtual Private Cloud User Guide .

SecondaryPrivateIpAddressCount and SecondaryPrivateIpAddresses cannot be set at the same time.

subnetIdstring | ISubnetRefsubnet_idtyping.Union[str, ISubnetRef]subnetIdStringSubnetIdstringSubnetIdinterface{}#
The ID of the subnet in which the NAT gateway is located.
tagsCfnTag[]tagstyping.List[CfnTag]tagsList<CfnTag>TagsCfnTag[]Tags*[]CfnTag#
The tags for the NAT gateway.
vpcIdstringvpc_idstrvpcIdStringVpcIdstringVpcId*string#
The ID of the VPC in which the NAT gateway is located.

Properties ​

allocationIdstringallocation_idstrallocationIdStringAllocationIdstringAllocationId*string#
[Public NAT gateway only] The allocation ID of the Elastic IP address that's associated with the NAT gateway.
attrAutoProvisionZonesstringattr_auto_provision_zonesstrattrAutoProvisionZonesStringAttrAutoProvisionZonesstringAttrAutoProvisionZones*stringrequired#
For regional NAT gateways only: Indicates whether AWS automatically manages AZ coverage.
notes

When enabled, the NAT gateway associates EIPs in all AZs where your VPC has subnets to handle outbound NAT traffic, expands to new AZs when you create subnets there, and retracts from AZs where you've removed all subnets. When disabled, you must manually manage which AZs the NAT gateway supports and their corresponding EIPs.

A regional NAT gateway is a single NAT Gateway that works across multiple availability zones (AZs) in your VPC, providing redundancy, scalability and availability across all the AZs in a Region.

For more information, see Regional NAT gateways for automatic multi-AZ expansion in the Amazon VPC User Guide .

attrAutoScalingIpsstringattr_auto_scaling_ipsstrattrAutoScalingIpsStringAttrAutoScalingIpsstringAttrAutoScalingIps*stringrequired#
For regional NAT gateways only: Indicates whether AWS automatically allocates additional Elastic IP addresses (EIPs) in an AZ when the NAT gateway needs more ports due to increased concurrent connections to a single destination from that AZ.

For more information, see Regional NAT gateways for automatic multi-AZ expansion in the Amazon VPC User Guide .

attrEniIdstringattr_eni_idstrattrEniIdStringAttrEniIdstringAttrEniId*stringrequired#
The ID of the network interface.
attrNatGatewayIdstringattr_nat_gateway_idstrattrNatGatewayIdStringAttrNatGatewayIdstringAttrNatGatewayId*stringrequired#
The ID of the NAT gateway.
attrRouteTableIdstringattr_route_table_idstrattrRouteTableIdStringAttrRouteTableIdstringAttrRouteTableId*stringrequired#
For regional NAT gateways only, this is the ID of the NAT gateway.
availabilityModestringavailability_modestravailabilityModeStringAvailabilityModestringAvailabilityMode*string#
Indicates whether this is a zonal (single-AZ) or regional (multi-AZ) NAT gateway.
availabilityZoneAddressesIResolvable | IResolvable | CfnNatGateway.AvailabilityZoneAddressProperty[]availability_zone_addressestyping.Union[IResolvable, typing.List[typing.Union[IResolvable, AvailabilityZoneAddressProperty]]]availabilityZoneAddressesIResolvableAvailabilityZoneAddressesIResolvableAvailabilityZoneAddressesinterface{}#
For regional NAT gateways only: Specifies which Availability Zones you want the NAT gateway to support and the Elastic IP addresses (EIPs) to use in each AZ.
CFN_RESOURCE_TYPE_NAMEstringcfn_resource_type_namestrCFN_RESOURCE_TYPE_NAMEStringCFN_RESOURCE_TYPE_NAMEstringCFN_RESOURCE_TYPE_NAME*stringrequiredstatic#
The CloudFormation resource type name for this resource class.
Options for this resource, such as condition, update policy etc.
cfnResourceTypestringcfn_resource_typestrcfnResourceTypeStringCfnResourceTypestringCfnResourceType*stringrequired#
AWS resource type.
connectivityTypestringconnectivity_typestrconnectivityTypeStringConnectivityTypestringConnectivityType*string#
Indicates whether the NAT gateway supports public or private connectivity.
creationStackstring[]creation_stacktyping.List[str]creationStackList<String>CreationStackstring[]CreationStack*[]*stringrequired#
logicalIdstringlogical_idstrlogicalIdStringLogicalIdstringLogicalId*stringrequired#
The logical ID for this CloudFormation stack element.

The logical ID of the element is calculated from the path of the resource node in the construct tree.

To override this value, use overrideLogicalId(newLogicalId).

maxDrainDurationSecondsnumbermax_drain_duration_secondsint | floatmaxDrainDurationSecondsNumberMaxDrainDurationSecondsdoubleMaxDrainDurationSeconds*float64#
The maximum amount of time to wait (in seconds) before forcibly releasing the IP addresses if connections are still in progress.
natGatewayRefNatGatewayReferencenat_gateway_refNatGatewayReferencenatGatewayRefNatGatewayReferenceNatGatewayRefNatGatewayReferenceNatGatewayRefNatGatewayReferencerequired#
A reference to a NatGateway resource.
nodeNodenodeNodenodeNodeNodeNodeNodeNoderequired#
The tree node.
privateIpAddressstringprivate_ip_addressstrprivateIpAddressStringPrivateIpAddressstringPrivateIpAddress*string#
The private IPv4 address to assign to the NAT gateway.
refstringrefstrrefStringRefstringRef*stringrequired#
Return a string that will be resolved to a CloudFormation `{ Ref }` for this element.

If, by any chance, the intrinsic reference of a resource is not a string, you could coerce it to an IResolvable through Lazy.any({ produce: resource.ref }).

secondaryAllocationIdsstring[]secondary_allocation_idstyping.List[str]secondaryAllocationIdsList<String>SecondaryAllocationIdsstring[]SecondaryAllocationIds*[]*string#
Secondary EIP allocation IDs.
secondaryPrivateIpAddressCountnumbersecondary_private_ip_address_countint | floatsecondaryPrivateIpAddressCountNumberSecondaryPrivateIpAddressCountdoubleSecondaryPrivateIpAddressCount*float64#
[Private NAT gateway only] The number of secondary private IPv4 addresses you want to assign to the NAT gateway.
secondaryPrivateIpAddressesstring[]secondary_private_ip_addressestyping.List[str]secondaryPrivateIpAddressesList<String>SecondaryPrivateIpAddressesstring[]SecondaryPrivateIpAddresses*[]*string#
Secondary private IPv4 addresses.
stackStackstackStackstackStackStackStackStackStackrequired#
The stack in which this element is defined.

CfnElements must be defined within a stack scope (directly or indirectly).

subnetIdstringsubnet_idstrsubnetIdStringSubnetIdstringSubnetId*string#
The ID of the subnet in which the NAT gateway is located.
Tag Manager which manages the tags for this resource.
tagsRawCfnTag[]tags_rawtyping.List[CfnTag]tagsRawList<CfnTag>TagsRawCfnTag[]TagsRaw*[]CfnTag#
The tags for the NAT gateway.
vpcIdstringvpc_idstrvpcIdStringVpcIdstringVpcId*string#
The ID of the VPC in which the NAT gateway is located.

Methods ​

addDeletionOverride(path: string): voiddef add_deletion_override(self, path: str) -> Nonepublic void addDeletionOverride(String path)public void AddDeletionOverride(string path)func AddDeletionOverride(Path *string)#
Syntactic sugar for `addOverride(path, undefined)`.
1 parameter

Parameters

  • pathpathpathpathPath — The path of the value to delete.
addDependency(target: CfnResource): voiddef add_dependency(self, target: CfnResource) -> Nonepublic void addDependency(CfnResource target)public void AddDependency(CfnResource target)func AddDependency(Target CfnResource)deprecated#
Use `addResourceDependency` instead.

This method has been renamed to addResourceDependency to more clearly set it apart from construct.node.addDependency. See the documentation of that function for more details.

addDependsOn(target: CfnResource): voiddef add_depends_on(self, target: CfnResource) -> Nonepublic void addDependsOn(CfnResource target)public void AddDependsOn(CfnResource target)func AddDependsOn(Target CfnResource)deprecated#
Use `addResourceDependency` instead.
notes

This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope.

This method has been renamed to addResourceDependency, which makes it more clear that this method operates at a different level from the construct-level construct.node.addDependency() mechanism.

addMetadata(key: string, value: any): voiddef add_metadata(self, key: str, value: Any) -> Nonepublic void addMetadata(String key, Object value)public void AddMetadata(string key, object value)func AddMetadata(Key *string, Value interface{})#
Add a value to the CloudFormation Resource Metadata.
addOverride(path: string, value: any): voiddef add_override(self, path: str, value: Any) -> Nonepublic void addOverride(String path, Object value)public void AddOverride(string path, object value)func AddOverride(Path *string, Value interface{})#
Adds an override to the synthesized CloudFormation resource.
notes · 2 parameters

To add a property override, either use addPropertyOverride or prefix path with "Properties." (i.e. Properties.TopicName).

If the override is nested, separate each nested level using a dot (.) in the path parameter. If there is an array as part of the nesting, specify the index in the path.

To include a literal . in the property name, prefix with a \. In most programming languages you will need to write this as "\\." because the \ itself will need to be escaped.

For example,

typescript
cfnResource.addOverride('Properties.GlobalSecondaryIndexes.0.Projection.NonKeyAttributes', ['myattribute']);
cfnResource.addOverride('Properties.GlobalSecondaryIndexes.1.ProjectionType', 'INCLUDE');

would add the overrides

json
"Properties": {
  "GlobalSecondaryIndexes": [
    {
      "Projection": {
        "NonKeyAttributes": [ "myattribute" ]
        ...
      }
      ...
    },
    {
      "ProjectionType": "INCLUDE"
      ...
    },
  ]
  ...
}

The value argument to addOverride will not be processed or translated in any way. Pass raw JSON values in here with the correct capitalization for CloudFormation. If you pass CDK classes or structs, they will be rendered with lowercased key names, and CloudFormation will reject the template.

Parameters

  • pathpathpathpathPath — - The path of the property, you can use dot notation to override values in complex types.
  • valuevaluevaluevalueValue — - The value.
addPropertyDeletionOverride(propertyPath: string): voiddef add_property_deletion_override(self, property_path: str) -> Nonepublic void addPropertyDeletionOverride(String propertyPath)public void AddPropertyDeletionOverride(string propertyPath)func AddPropertyDeletionOverride(PropertyPath *string)#
Adds an override that deletes the value of a property from the resource definition.
1 parameter

Parameters

  • propertyPathproperty_pathpropertyPathpropertyPathPropertyPath — The path to the property.
addPropertyOverride(propertyPath: string, value: any): voiddef add_property_override(self, property_path: str, value: Any) -> Nonepublic void addPropertyOverride(String propertyPath, Object value)public void AddPropertyOverride(string propertyPath, object value)func AddPropertyOverride(PropertyPath *string, Value interface{})#
Adds an override to a resource property.

Syntactic sugar for addOverride("Properties.<...>", value).

2 parameters

Parameters

  • propertyPathproperty_pathpropertyPathpropertyPathPropertyPath — The path of the property.
  • valuevaluevaluevalueValue — The value.
addResourceDependency(target: CfnResource, reason?: string): voiddef add_resource_dependency(self, target: CfnResource, reason: typing.Optional[str] = None) -> Nonepublic void addResourceDependency(CfnResource target, String reason)public void AddResourceDependency(CfnResource target, string? reason = null)func AddResourceDependency(Target CfnResource, Reason *string)#
Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.
notes

This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope.

This method only adds dependencies between L1 resources. If you are looking for a generic construct-to-construct dependency mechanism that works for all constructs including L2s, use construct.node.addDependency instead.

applyCrossStackReferenceStrength(strength: ReferenceStrength): voiddef apply_cross_stack_reference_strength(self, strength: ReferenceStrength) -> Nonepublic void applyCrossStackReferenceStrength(ReferenceStrength strength)public void ApplyCrossStackReferenceStrength(ReferenceStrength strength)func ApplyCrossStackReferenceStrength(Strength ReferenceStrength)#
Sets the cross-stack reference strength for this resource.

When set, any cross-stack reference to this resource will use the specified strength instead of the global default from the consuming stack's context.

1 parameter

Parameters

  • strengthstrengthstrengthstrengthStrength — - The reference strength to use for this resource.
applyRemovalPolicy(policy?: RemovalPolicy, options?: RemovalPolicyOptions): voiddef apply_removal_policy(self, policy: typing.Optional[RemovalPolicy] = None, options: typing.Optional[RemovalPolicyOptions] = None) -> Nonepublic void applyRemovalPolicy(RemovalPolicy policy, RemovalPolicyOptions options)public void ApplyRemovalPolicy(RemovalPolicy? policy = null, RemovalPolicyOptions? options = null)func ApplyRemovalPolicy(Policy RemovalPolicy, Options RemovalPolicyOptions)#
Sets the deletion policy of the resource based on the removal policy specified.
notes

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). In some cases, a snapshot can be taken of the resource prior to deletion (RemovalPolicy.SNAPSHOT). A list of resources that support this policy can be found in the following link:

arnForNatGateway(resource: INatGatewayRef): string@staticmethod def arn_for_nat_gateway(resource: INatGatewayRef) -> strpublic static String arnForNatGateway(INatGatewayRef resource)public static string ArnForNatGateway(INatGatewayRef resource)func ArnForNatGateway(Resource INatGatewayRef) *stringstatic#
cfnPropertyName(cdkPropertyName: string): stringdef cfn_property_name(self, cdk_property_name: str) -> strpublic String cfnPropertyName(String cdkPropertyName)public string CfnPropertyName(string cdkPropertyName)func CfnPropertyName(CdkPropertyName *string) *string#
fromNatGatewayId(scope: Construct, id: string, natGatewayId: string): INatGatewayRef@staticmethod def from_nat_gateway_id(scope: Construct, id: str, nat_gateway_id: str) -> INatGatewayRefpublic static INatGatewayRef fromNatGatewayId(Construct scope, String id, String natGatewayId)public static INatGatewayRef FromNatGatewayId(Construct scope, string id, string natGatewayId)func FromNatGatewayId(Scope Construct, Id *string, NatGatewayId *string) INatGatewayRefstatic#
Creates a new INatGatewayRef from a natGatewayId.
getAtt(attributeName: string, typeHint?: ResolutionTypeHint): Referencedef get_att(self, attribute_name: str, type_hint: typing.Optional[ResolutionTypeHint] = None) -> Referencepublic Reference getAtt(String attributeName, ResolutionTypeHint typeHint)public Reference GetAtt(string attributeName, ResolutionTypeHint? typeHint = null)func GetAtt(AttributeName *string, TypeHint ResolutionTypeHint) Reference#
Returns a token for an runtime attribute of this resource.

Ideally, use generated attribute accessors (e.g. resource.arn), but this can be used for future compatibility in case there is no generated attribute.

1 parameter

Parameters

  • attributeNameattribute_nameattributeNameattributeNameAttributeName — The name of the attribute.
getMetadata(key: string): anydef get_metadata(self, key: str) -> Anypublic Object getMetadata(String key)public object GetMetadata(string key)func GetMetadata(Key *string) interface{}#
Retrieve a value value from the CloudFormation Resource Metadata.
inspect(inspector: TreeInspector): voiddef inspect(self, inspector: TreeInspector) -> Nonepublic void inspect(TreeInspector inspector)public void Inspect(TreeInspector inspector)func Inspect(Inspector TreeInspector)#
Examines the CloudFormation resource and discloses attributes.
1 parameter

Parameters

  • inspectorinspectorinspectorinspectorInspector — tree inspector to collect and process attributes.
isCfnElement(x: any): boolean@staticmethod def is_cfn_element(x: Any) -> boolpublic static Boolean isCfnElement(Object x)public static bool IsCfnElement(object x)func IsCfnElement(X interface{}) *boolstatic#
Returns `true` if a construct is a stack element (i.e. part of the synthesized cloudformation template).

Uses duck-typing instead of instanceof to allow stack elements from different versions of this library to be included in the same stack.

returns

Returns: The construct as a stack element or undefined if it is not a stack element.

isCfnNatGateway(x: any): boolean@staticmethod def is_cfn_nat_gateway(x: Any) -> boolpublic static Boolean isCfnNatGateway(Object x)public static bool IsCfnNatGateway(object x)func IsCfnNatGateway(X interface{}) *boolstatic#
Checks whether the given object is a CfnNatGateway.
isCfnResource(x: any): boolean@staticmethod def is_cfn_resource(x: Any) -> boolpublic static Boolean isCfnResource(Object x)public static bool IsCfnResource(object x)func IsCfnResource(X interface{}) *boolstatic#
Check whether the given object is a CfnResource.
isConstruct(x: any): boolean@staticmethod def is_construct(x: Any) -> boolpublic static Boolean isConstruct(Object x)public static bool IsConstruct(object x)func IsConstruct(X interface{}) *boolstatic#
Checks if `x` is a construct.
notes · 1 parameter · returns

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

  • xxxxX — Any object.

Returns: true if x is an object created from a class which extends Construct.

obtainDependencies(): Stack | CfnResource[]def obtain_dependencies(self, ) -> typing.List[typing.Union[Stack, CfnResource]]public List<Stack> obtainDependencies()public Stack[] ObtainDependencies()func ObtainDependencies() *[]interface{}#
Retrieves an array of resources and stacks this resource depends on.

For resources depended on directly, returns the CfnResource object. For dependencies on other stacks, returns the Stack object. The order of the array is not guaranteed.

overrideLogicalId(newLogicalId: string): voiddef override_logical_id(self, new_logical_id: str) -> Nonepublic void overrideLogicalId(String newLogicalId)public void OverrideLogicalId(string newLogicalId)func OverrideLogicalId(NewLogicalId *string)#
Overrides the auto-generated logical ID with a specific ID.
1 parameter

Parameters

  • newLogicalIdnew_logical_idnewLogicalIdnewLogicalIdNewLogicalId — The new logical ID to use for this stack element.
removeDependency(target: CfnResource): voiddef remove_dependency(self, target: CfnResource) -> Nonepublic void removeDependency(CfnResource target)public void RemoveDependency(CfnResource target)func RemoveDependency(Target CfnResource)deprecated#
Use `removeResourceDependency` instead

This can be used for resources across stacks (including nested stacks) and the dependency will automatically be removed from the relevant scope.

removeResourceDependency(target: CfnResource): voiddef remove_resource_dependency(self, target: CfnResource) -> Nonepublic void removeResourceDependency(CfnResource target)public void RemoveResourceDependency(CfnResource target)func RemoveResourceDependency(Target CfnResource)#
Indicates that this resource no longer depends on another resource.

This can be used for resources across stacks (including nested stacks) and the dependency will automatically be removed from the relevant scope.

replaceDependency(target: CfnResource, newTarget: CfnResource): voiddef replace_dependency(self, target: CfnResource, new_target: CfnResource) -> Nonepublic void replaceDependency(CfnResource target, CfnResource newTarget)public void ReplaceDependency(CfnResource target, CfnResource newTarget)func ReplaceDependency(Target CfnResource, NewTarget CfnResource)#
Replaces one dependency with another.
2 parameters

Parameters

  • targettargettargettargetTarget — The dependency to replace.
  • newTargetnew_targetnewTargetnewTargetNewTarget — The new dependency to add.
toString(): stringdef to_string(self, ) -> strpublic String toString()public string ToString()func ToString() *string#
Returns a string representation of this construct.
returns

Returns: a string representation of this resource

with(...mixins: IMixin[]): IConstructdef with(self, mixins: IMixin) -> IConstructpublic IConstruct with(IMixin mixins)public IConstruct With(IMixin mixins)func With(Mixins IMixin) IConstruct#
Applies one or more mixins to this construct.

Mixins are applied in order. The list of constructs is captured at the start of the call, so constructs added by a mixin will not be visited. Use multiple with() calls if subsequent mixins should apply to added constructs.