CfnTransitGateway

class aws_cdk.aws_ec2.CfnTransitGateway(scope, id, *, amazon_side_asn=None, association_default_route_table_id=None, auto_accept_shared_attachments=None, default_route_table_association=None, default_route_table_propagation=None, description=None, dns_support=None, multicast_support=None, propagation_default_route_table_id=None, tags=None, transit_gateway_cidr_blocks=None, vpn_ecmp_support=None)

Bases: aws_cdk.core.CfnResource

A CloudFormation AWS::EC2::TransitGateway.

Specifies a transit gateway.

You can use a transit gateway to interconnect your virtual private clouds (VPC) and on-premises networks. After the transit gateway enters the available state, you can attach your VPCs and VPN connections to the transit gateway.

To attach your VPCs, use AWS::EC2::TransitGatewayAttachment .

To attach a VPN connection, use AWS::EC2::CustomerGateway to create a customer gateway and specify the ID of the customer gateway and the ID of the transit gateway in a call to AWS::EC2::VPNConnection .

When you create a transit gateway, we create a default transit gateway route table and use it as the default association route table and the default propagation route table. You can use AWS::EC2::TransitGatewayRouteTable to create additional transit gateway route tables. If you disable automatic route propagation, we do not create a default transit gateway route table. You can use AWS::EC2::TransitGatewayRouteTablePropagation to propagate routes from a resource attachment to a transit gateway route table. If you disable automatic associations, you can use AWS::EC2::TransitGatewayRouteTableAssociation to associate a resource attachment with a transit gateway route table.

CloudformationResource

AWS::EC2::TransitGateway

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html

ExampleMetadata

fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
import aws_cdk.aws_ec2 as ec2

cfn_transit_gateway = ec2.CfnTransitGateway(self, "MyCfnTransitGateway",
    amazon_side_asn=123,
    association_default_route_table_id="associationDefaultRouteTableId",
    auto_accept_shared_attachments="autoAcceptSharedAttachments",
    default_route_table_association="defaultRouteTableAssociation",
    default_route_table_propagation="defaultRouteTablePropagation",
    description="description",
    dns_support="dnsSupport",
    multicast_support="multicastSupport",
    propagation_default_route_table_id="propagationDefaultRouteTableId",
    tags=[CfnTag(
        key="key",
        value="value"
    )],
    transit_gateway_cidr_blocks=["transitGatewayCidrBlocks"],
    vpn_ecmp_support="vpnEcmpSupport"
)

Create a new AWS::EC2::TransitGateway.

Parameters
  • scope (Construct) –

    • scope in which this resource is defined.

  • id (str) –

    • scoped id of the resource.

  • amazon_side_asn (Union[int, float, None]) – A private Autonomous System Number (ASN) for the Amazon side of a BGP session. The range is 64512 to 65534 for 16-bit ASNs. The default is 64512.

  • association_default_route_table_id (Optional[str]) – The ID of the default association route table.

  • auto_accept_shared_attachments (Optional[str]) – Enable or disable automatic acceptance of attachment requests. Disabled by default.

  • default_route_table_association (Optional[str]) – Enable or disable automatic association with the default association route table. Enabled by default.

  • default_route_table_propagation (Optional[str]) – Enable or disable automatic propagation of routes to the default propagation route table. Enabled by default.

  • description (Optional[str]) – The description of the transit gateway.

  • dns_support (Optional[str]) – Enable or disable DNS support. Enabled by default.

  • multicast_support (Optional[str]) – Indicates whether multicast is enabled on the transit gateway.

  • propagation_default_route_table_id (Optional[str]) – The ID of the default propagation route table.

  • tags (Optional[Sequence[Union[CfnTag, Dict[str, Any]]]]) – The tags for the transit gateway.

  • transit_gateway_cidr_blocks (Optional[Sequence[str]]) – The transit gateway CIDR blocks.

  • vpn_ecmp_support (Optional[str]) – Enable or disable Equal Cost Multipath Protocol support. Enabled by default.

Methods

add_deletion_override(path)

Syntactic sugar for addOverride(path, undefined).

Parameters

path (str) – The path of the value to delete.

Return type

None

add_depends_on(target)

Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.

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

Parameters

target (CfnResource) –

Return type

None

add_metadata(key, value)

Add a value to the CloudFormation Resource Metadata.

Parameters
  • key (str) –

  • value (Any) –

See

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html

Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.

Return type

None

add_override(path, value)

Adds an override to the synthesized CloudFormation resource.

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:

cfn_resource.add_override("Properties.GlobalSecondaryIndexes.0.Projection.NonKeyAttributes", ["myattribute"])
cfn_resource.add_override("Properties.GlobalSecondaryIndexes.1.ProjectionType", "INCLUDE")

would add the overrides Example:

"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
  • path (str) –

    • The path of the property, you can use dot notation to override values in complex types. Any intermdediate keys will be created as needed.

  • value (Any) –

    • The value. Could be primitive or complex.

Return type

None

add_property_deletion_override(property_path)

Adds an override that deletes the value of a property from the resource definition.

Parameters

property_path (str) – The path to the property.

Return type

None

add_property_override(property_path, value)

Adds an override to a resource property.

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

Parameters
  • property_path (str) – The path of the property.

  • value (Any) – The value.

Return type

None

apply_removal_policy(policy=None, *, apply_to_update_replace_policy=None, default=None)

Sets the deletion policy of the resource based on the removal policy specified.

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 (Optional[RemovalPolicy]) –

  • apply_to_update_replace_policy (Optional[bool]) – Apply the same deletion policy to the resource’s “UpdateReplacePolicy”. Default: true

  • default (Optional[RemovalPolicy]) – The default policy to apply in case the removal policy is not defined. Default: - Default value is resource specific. To determine the default value for a resoure, please consult that specific resource’s documentation.

Return type

None

get_att(attribute_name)

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.

Parameters

attribute_name (str) – The name of the attribute.

Return type

Reference

get_metadata(key)

Retrieve a value value from the CloudFormation Resource Metadata.

Parameters

key (str) –

See

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html

Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.

Return type

Any

inspect(inspector)

Examines the CloudFormation resource and discloses attributes.

Parameters

inspector (TreeInspector) –

  • tree inspector to collect and process attributes.

Return type

None

override_logical_id(new_logical_id)

Overrides the auto-generated logical ID with a specific ID.

Parameters

new_logical_id (str) – The new logical ID to use for this stack element.

Return type

None

to_string()

Returns a string representation of this construct.

Return type

str

Returns

a string representation of this resource

Attributes

CFN_RESOURCE_TYPE_NAME = 'AWS::EC2::TransitGateway'
amazon_side_asn

A private Autonomous System Number (ASN) for the Amazon side of a BGP session.

The range is 64512 to 65534 for 16-bit ASNs. The default is 64512.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-amazonsideasn

Return type

Union[int, float, None]

association_default_route_table_id

The ID of the default association route table.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-associationdefaultroutetableid

Return type

Optional[str]

attr_id

The ID of the transit gateway.

CloudformationAttribute

Id

Return type

str

auto_accept_shared_attachments

Enable or disable automatic acceptance of attachment requests.

Disabled by default.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-autoacceptsharedattachments

Return type

Optional[str]

cfn_options

Options for this resource, such as condition, update policy etc.

Return type

ICfnResourceOptions

cfn_resource_type

AWS resource type.

Return type

str

creation_stack

return:

the stack trace of the point where this Resource was created from, sourced from the +metadata+ entry typed +aws:cdk:logicalId+, and with the bottom-most node +internal+ entries filtered.

Return type

List[str]

default_route_table_association

Enable or disable automatic association with the default association route table.

Enabled by default.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-defaultroutetableassociation

Return type

Optional[str]

default_route_table_propagation

Enable or disable automatic propagation of routes to the default propagation route table.

Enabled by default.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-defaultroutetablepropagation

Return type

Optional[str]

description

The description of the transit gateway.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-description

Return type

Optional[str]

dns_support

Enable or disable DNS support.

Enabled by default.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-dnssupport

Return type

Optional[str]

logical_id

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).

Return type

str

Returns

the logical ID as a stringified token. This value will only get resolved during synthesis.

multicast_support

Indicates whether multicast is enabled on the transit gateway.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-multicastsupport

Return type

Optional[str]

node

The construct tree node associated with this construct.

Return type

ConstructNode

propagation_default_route_table_id

The ID of the default propagation route table.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-propagationdefaultroutetableid

Return type

Optional[str]

ref

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 }).

Return type

str

stack

The stack in which this element is defined.

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

Return type

Stack

tags

The tags for the transit gateway.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-tags

Return type

TagManager

transit_gateway_cidr_blocks

The transit gateway CIDR blocks.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-transitgatewaycidrblocks

Return type

Optional[List[str]]

vpn_ecmp_support

Enable or disable Equal Cost Multipath Protocol support.

Enabled by default.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-transitgateway.html#cfn-ec2-transitgateway-vpnecmpsupport

Return type

Optional[str]

Static Methods

classmethod is_cfn_element(x)

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.

Parameters

x (Any) –

Return type

bool

Returns

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

classmethod is_cfn_resource(construct)

Check whether the given construct is a CfnResource.

Parameters

construct (IConstruct) –

Return type

bool

classmethod is_construct(x)

Return whether the given object is a Construct.

Parameters

x (Any) –

Return type

bool