create-transit-gateway-vpc-attachment¶

Description¶

Attaches the specified VPC to the specified transit gateway.

If you attach a VPC with a CIDR range that overlaps the CIDR range of a VPC that is already attached, the new VPC CIDR range is not propagated to the default propagation route table.

To send VPC traffic to an attached transit gateway, add a route to the VPC route table using CreateRoute .

Synopsis¶

  create-transit-gateway-vpc-attachment
--transit-gateway-id <value>
--vpc-id <value>
--subnet-ids <value>
[--options <value>]
[--tag-specifications <value>]
[--dry-run | --no-dry-run]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options¶

--transit-gateway-id (string)

The ID of the transit gateway.

--vpc-id (string)

The ID of the VPC.

--subnet-ids (list)

The IDs of one or more subnets. You can specify only one subnet per Availability Zone. You must specify at least one subnet, but we recommend that you specify two subnets for better availability. The transit gateway uses one IP address from each specified subnet.

(string)

Syntax:

"string" "string" ...

--options (structure)

The VPC attachment options.

DnsSupport -> (string)

Enable or disable DNS support. The default is enable .

Ipv6Support -> (string)

Enable or disable IPv6 support. The default is disable .

ApplianceModeSupport -> (string)

Enable or disable support for appliance mode. If enabled, a traffic flow between a source and destination uses the same Availability Zone for the VPC attachment for the lifetime of that flow. The default is disable .

Shorthand Syntax:

DnsSupport=string,Ipv6Support=string,ApplianceModeSupport=string

JSON Syntax:

{
  "DnsSupport": "enable"|"disable",
  "Ipv6Support": "enable"|"disable",
  "ApplianceModeSupport": "enable"|"disable"
}

--tag-specifications (list)

The tags to apply to the VPC attachment.

(structure)

The tags to apply to a resource when the resource is being created.

ResourceType -> (string)

The type of resource to tag on creation.

Tags -> (list)

The tags to apply to the resource.

(structure)

Describes a tag.

Key -> (string)

The key of the tag.

Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with aws: .

Value -> (string)

The value of the tag.

Constraints: Tag values are case-sensitive and accept a maximum of 256 Unicode characters.

Shorthand Syntax:

ResourceType=string,Tags=[{Key=string,Value=string},{Key=string,Value=string}] ...

JSON Syntax:

[
  {
    "ResourceType": "capacity-reservation"|"client-vpn-endpoint"|"customer-gateway"|"carrier-gateway"|"dedicated-host"|"dhcp-options"|"egress-only-internet-gateway"|"elastic-ip"|"elastic-gpu"|"export-image-task"|"export-instance-task"|"fleet"|"fpga-image"|"host-reservation"|"image"|"import-image-task"|"import-snapshot-task"|"instance"|"instance-event-window"|"internet-gateway"|"ipam"|"ipam-pool"|"ipam-scope"|"ipv4pool-ec2"|"ipv6pool-ec2"|"key-pair"|"launch-template"|"local-gateway"|"local-gateway-route-table"|"local-gateway-virtual-interface"|"local-gateway-virtual-interface-group"|"local-gateway-route-table-vpc-association"|"local-gateway-route-table-virtual-interface-group-association"|"natgateway"|"network-acl"|"network-interface"|"network-insights-analysis"|"network-insights-path"|"network-insights-access-scope"|"network-insights-access-scope-analysis"|"placement-group"|"prefix-list"|"replace-root-volume-task"|"reserved-instances"|"route-table"|"security-group"|"security-group-rule"|"snapshot"|"spot-fleet-request"|"spot-instances-request"|"subnet"|"subnet-cidr-reservation"|"traffic-mirror-filter"|"traffic-mirror-session"|"traffic-mirror-target"|"transit-gateway"|"transit-gateway-attachment"|"transit-gateway-connect-peer"|"transit-gateway-multicast-domain"|"transit-gateway-route-table"|"volume"|"vpc"|"vpc-endpoint"|"vpc-endpoint-service"|"vpc-peering-connection"|"vpn-connection"|"vpn-gateway"|"vpc-flow-log",
    "Tags": [
      {
        "Key": "string",
        "Value": "string"
      }
      ...
    ]
  }
  ...
]

--dry-run | --no-dry-run (boolean)

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.

Examples¶

Example 1: To associate a transit gateway with a VPC

The following create-transit-gateway-vpc-attachment example creates a transit gateway attachment to the specified VPC.

aws ec2 create-transit-gateway-vpc-attachment \
    --transit-gateway-id tgw-0262a0e521EXAMPLE \
    --vpc-id vpc-07e8ffd50f49335df \
    --subnet-id subnet-0752213d59EXAMPLE

Output:

{
    "TransitGatewayVpcAttachment": {
        "TransitGatewayAttachmentId": "tgw-attach-0a34fe6b4fEXAMPLE",
        "TransitGatewayId": "tgw-0262a0e521EXAMPLE",
        "VpcId": "vpc-07e8ffd50fEXAMPLE",
        "VpcOwnerId": "111122223333",
        "State": "pending",
        "SubnetIds": [
            "subnet-0752213d59EXAMPLE"
        ],
        "CreationTime": "2019-07-10T17:33:46.000Z",
        "Options": {
            "DnsSupport": "enable",
            "Ipv6Support": "disable"
        }
    }
}

For more information, see Create a transit gateway attachment to a VPC in the Transit Gateways Guide.

Example 2: To associate a transit gateway with multiple subnets in a VPC

The following create-transit-gateway-vpc-attachment example creates a transit gateway attachment to the specified VPC and subnets.

aws ec2 create-transit-gateway-vpc-attachment \
    --transit-gateway-id tgw-02f776b1a7EXAMPLE  \
    --vpc-id vpc-3EXAMPLE \
    --subnet-ids "subnet-dEXAMPLE" "subnet-6EXAMPLE"

Output:

{
    "TransitGatewayVpcAttachment": {
        "TransitGatewayAttachmentId": "tgw-attach-0e141e0bebEXAMPLE",
        "TransitGatewayId": "tgw-02f776b1a7EXAMPLE",
        "VpcId": "vpc-3EXAMPLE",
        "VpcOwnerId": "111122223333",
        "State": "pending",
        "SubnetIds": [
            "subnet-6EXAMPLE",
            "subnet-dEXAMPLE"
        ],
        "CreationTime": "2019-12-17T20:07:52.000Z",
        "Options": {
            "DnsSupport": "enable",
            "Ipv6Support": "disable"
        }
    }
}

For more information, see Create a transit gateway attachment to a VPC in the Transit Gateways Guide.

Output¶

TransitGatewayVpcAttachment -> (structure)

Information about the VPC attachment.

TransitGatewayAttachmentId -> (string)

The ID of the attachment.

TransitGatewayId -> (string)

The ID of the transit gateway.

VpcId -> (string)

The ID of the VPC.

VpcOwnerId -> (string)

The ID of the Amazon Web Services account that owns the VPC.

State -> (string)

The state of the VPC attachment. Note that the initiating state has been deprecated.

SubnetIds -> (list)

The IDs of the subnets.

(string)

CreationTime -> (timestamp)

The creation time.

Options -> (structure)

The VPC attachment options.

DnsSupport -> (string)

Indicates whether DNS support is enabled.

Ipv6Support -> (string)

Indicates whether IPv6 support is disabled.

ApplianceModeSupport -> (string)

Indicates whether appliance mode support is enabled.

Tags -> (list)

The tags for the VPC attachment.

(structure)

Describes a tag.

Key -> (string)

The key of the tag.

Constraints: Tag keys are case-sensitive and accept a maximum of 127 Unicode characters. May not begin with aws: .

Value -> (string)

The value of the tag.

Constraints: Tag values are case-sensitive and accept a maximum of 256 Unicode characters.

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