Amazon Elastic Compute Cloud

2021/06/10 - Amazon Elastic Compute Cloud - 2 updated api methods

Changes  This release adds a new optional parameter connectivityType (public, private) for the CreateNatGateway API. Private NatGateway does not require customers to attach an InternetGateway to the VPC and can be used for communication with other VPCs and on-premise networks.

CreateNatGateway (updated) Link ¶
Changes (request, response)
Request 
{'ConnectivityType': 'private | public'}
Response 
{'NatGateway': {'ConnectivityType': 'private | public'}}

Creates a NAT gateway in the specified subnet. This action creates a network interface in the specified subnet with a private IP address from the IP address range of the subnet. You can create either a public NAT gateway or a private NAT gateway.

With a public NAT gateway, internet-bound traffic from a private subnet can be routed to the NAT gateway, so that instances in a private subnet can connect to the internet.

With a private NAT gateway, private communication is routed across VPCs and on-premises networks through a transit gateway or virtual private gateway. Common use cases include running large workloads behind a small pool of allowlisted IPv4 addresses, preserving private IPv4 addresses, and communicating between overlapping networks.

For more information, see NAT Gateways in the Amazon Virtual Private Cloud User Guide .

See also: AWS API Documentation

Request Syntax

client.create_nat_gateway(
    AllocationId='string',
    ClientToken='string',
    DryRun=True|False,
    SubnetId='string',
    TagSpecifications=[
        {
            'ResourceType': 'client-vpn-endpoint'|'customer-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'|'internet-gateway'|'key-pair'|'launch-template'|'local-gateway-route-table-vpc-association'|'natgateway'|'network-acl'|'network-interface'|'network-insights-analysis'|'network-insights-path'|'placement-group'|'reserved-instances'|'route-table'|'security-group'|'snapshot'|'spot-fleet-request'|'spot-instances-request'|'subnet'|'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-peering-connection'|'vpn-connection'|'vpn-gateway'|'vpc-flow-log',
            'Tags': [
                {
                    'Key': 'string',
                    'Value': 'string'
                },
            ]
        },
    ],
    ConnectivityType='private'|'public'
)
type AllocationId

string

param AllocationId

[Public NAT gateways only] The allocation ID of an Elastic IP address to associate with the NAT gateway. You cannot specify an Elastic IP address with a private NAT gateway. If the Elastic IP address is associated with another resource, you must first disassociate it.

type ClientToken

string

param ClientToken

Unique, case-sensitive identifier that you provide to ensure the idempotency of the request. For more information, see How to Ensure Idempotency .

Constraint: Maximum 64 ASCII characters.

This field is autopopulated if not provided.

type DryRun

boolean

param DryRun

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 .

type SubnetId

string

param SubnetId

[REQUIRED]

The subnet in which to create the NAT gateway.

type TagSpecifications

list

param TagSpecifications

The tags to assign to the NAT gateway.

  • (dict) --

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

    • ResourceType (string) --

      The type of resource to tag. Currently, the resource types that support tagging on creation are: capacity-reservation | carrier-gateway | client-vpn-endpoint | customer-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 | internet-gateway | ipv4pool-ec2 | ipv6pool-ec2 | key-pair | launch-template | local-gateway-route-table-vpc-association | placement-group | prefix-list | natgateway | network-acl | network-interface | reserved-instances |route-table | security-group | snapshot | spot-fleet-request | spot-instances-request | snapshot | subnet | traffic-mirror-filter | traffic-mirror-session | traffic-mirror-target | transit-gateway | transit-gateway-attachment | transit-gateway-multicast-domain | transit-gateway-route-table | volume |vpc | vpc-peering-connection | vpc-endpoint (for interface and gateway endpoints) | vpc-endpoint-service (for AWS PrivateLink) | vpc-flow-log | vpn-connection | vpn-gateway .

      To tag a resource after it has been created, see CreateTags .

    • Tags (list) --

      The tags to apply to the resource.

      • (dict) --

        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 255 Unicode characters.

type ConnectivityType

string

param ConnectivityType

Indicates whether the NAT gateway supports public or private connectivity. The default is public connectivity.

rtype

dict

returns

Response Syntax

{
    'ClientToken': 'string',
    'NatGateway': {
        'CreateTime': datetime(2015, 1, 1),
        'DeleteTime': datetime(2015, 1, 1),
        'FailureCode': 'string',
        'FailureMessage': 'string',
        'NatGatewayAddresses': [
            {
                'AllocationId': 'string',
                'NetworkInterfaceId': 'string',
                'PrivateIp': 'string',
                'PublicIp': 'string'
            },
        ],
        'NatGatewayId': 'string',
        'ProvisionedBandwidth': {
            'ProvisionTime': datetime(2015, 1, 1),
            'Provisioned': 'string',
            'RequestTime': datetime(2015, 1, 1),
            'Requested': 'string',
            'Status': 'string'
        },
        'State': 'pending'|'failed'|'available'|'deleting'|'deleted',
        'SubnetId': 'string',
        'VpcId': 'string',
        'Tags': [
            {
                'Key': 'string',
                'Value': 'string'
            },
        ],
        'ConnectivityType': 'private'|'public'
    }
}

Response Structure

  • (dict) --

    • ClientToken (string) --

      Unique, case-sensitive identifier to ensure the idempotency of the request. Only returned if a client token was provided in the request.

    • NatGateway (dict) --

      Information about the NAT gateway.

      • CreateTime (datetime) --

        The date and time the NAT gateway was created.

      • DeleteTime (datetime) --

        The date and time the NAT gateway was deleted, if applicable.

      • FailureCode (string) --

        If the NAT gateway could not be created, specifies the error code for the failure. (InsufficientFreeAddressesInSubnet | Gateway.NotAttached | InvalidAllocationID.NotFound | Resource.AlreadyAssociated | InternalError | InvalidSubnetID.NotFound )

      • FailureMessage (string) --

        If the NAT gateway could not be created, specifies the error message for the failure, that corresponds to the error code.

        • For InsufficientFreeAddressesInSubnet: "Subnet has insufficient free addresses to create this NAT gateway"

        • For Gateway.NotAttached: "Network vpc-xxxxxxxx has no Internet gateway attached"

        • For InvalidAllocationID.NotFound: "Elastic IP address eipalloc-xxxxxxxx could not be associated with this NAT gateway"

        • For Resource.AlreadyAssociated: "Elastic IP address eipalloc-xxxxxxxx is already associated"

        • For InternalError: "Network interface eni-xxxxxxxx, created and used internally by this NAT gateway is in an invalid state. Please try again."

        • For InvalidSubnetID.NotFound: "The specified subnet subnet-xxxxxxxx does not exist or could not be found."

      • NatGatewayAddresses (list) --

        Information about the IP addresses and network interface associated with the NAT gateway.

        • (dict) --

          Describes the IP addresses and network interface associated with a NAT gateway.

          • AllocationId (string) --

            [Public NAT gateway only] The allocation ID of the Elastic IP address that's associated with the NAT gateway.

          • NetworkInterfaceId (string) --

            The ID of the network interface associated with the NAT gateway.

          • PrivateIp (string) --

            The private IP address associated with the NAT gateway.

          • PublicIp (string) --

            [Public NAT gateway only] The Elastic IP address associated with the NAT gateway.

      • NatGatewayId (string) --

        The ID of the NAT gateway.

      • ProvisionedBandwidth (dict) --

        Reserved. If you need to sustain traffic greater than the documented limits , contact us through the Support Center .

      • State (string) --

        The state of the NAT gateway.

        • pending : The NAT gateway is being created and is not ready to process traffic.

        • failed : The NAT gateway could not be created. Check the failureCode and failureMessage fields for the reason.

        • available : The NAT gateway is able to process traffic. This status remains until you delete the NAT gateway, and does not indicate the health of the NAT gateway.

        • deleting : The NAT gateway is in the process of being terminated and may still be processing traffic.

        • deleted : The NAT gateway has been terminated and is no longer processing traffic.

      • SubnetId (string) --

        The ID of the subnet in which the NAT gateway is located.

      • VpcId (string) --

        The ID of the VPC in which the NAT gateway is located.

      • Tags (list) --

        The tags for the NAT gateway.

        • (dict) --

          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 255 Unicode characters.

      • ConnectivityType (string) --

        Indicates whether the NAT gateway supports public or private connectivity.

DescribeNatGateways (updated) Link ¶
Changes (response) 
{'NatGateways': {'ConnectivityType': 'private | public'}}

Describes one or more of your NAT gateways.

See also: AWS API Documentation

Request Syntax

client.describe_nat_gateways(
    DryRun=True|False,
    Filter=[
        {
            'Name': 'string',
            'Values': [
                'string',
            ]
        },
    ],
    MaxResults=123,
    NatGatewayIds=[
        'string',
    ],
    NextToken='string'
)
type DryRun

boolean

param DryRun

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 .

type Filter

list

param Filter

One or more filters.

  • nat-gateway-id - The ID of the NAT gateway.

  • state - The state of the NAT gateway (pending | failed | available | deleting | deleted ).

  • subnet-id - The ID of the subnet in which the NAT gateway resides.

  • tag :<key> - The key/value combination of a tag assigned to the resource. Use the tag key in the filter name and the tag value as the filter value. For example, to find all resources that have a tag with the key Owner and the value TeamA , specify tag:Owner for the filter name and TeamA for the filter value.

  • tag-key - The key of a tag assigned to the resource. Use this filter to find all resources assigned a tag with a specific key, regardless of the tag value.

  • vpc-id - The ID of the VPC in which the NAT gateway resides.

  • (dict) --

    A filter name and value pair that is used to return a more specific list of results from a describe operation. Filters can be used to match a set of resources by specific criteria, such as tags, attributes, or IDs.

    • Name (string) --

      The name of the filter. Filter names are case-sensitive.

    • Values (list) --

      The filter values. Filter values are case-sensitive.

      • (string) --

type MaxResults

integer

param MaxResults

The maximum number of results to return with a single call. To retrieve the remaining results, make another call with the returned nextToken value.

type NatGatewayIds

list

param NatGatewayIds

One or more NAT gateway IDs.

  • (string) --

type NextToken

string

param NextToken

The token for the next page of results.

rtype

dict

returns

Response Syntax

{
    'NatGateways': [
        {
            'CreateTime': datetime(2015, 1, 1),
            'DeleteTime': datetime(2015, 1, 1),
            'FailureCode': 'string',
            'FailureMessage': 'string',
            'NatGatewayAddresses': [
                {
                    'AllocationId': 'string',
                    'NetworkInterfaceId': 'string',
                    'PrivateIp': 'string',
                    'PublicIp': 'string'
                },
            ],
            'NatGatewayId': 'string',
            'ProvisionedBandwidth': {
                'ProvisionTime': datetime(2015, 1, 1),
                'Provisioned': 'string',
                'RequestTime': datetime(2015, 1, 1),
                'Requested': 'string',
                'Status': 'string'
            },
            'State': 'pending'|'failed'|'available'|'deleting'|'deleted',
            'SubnetId': 'string',
            'VpcId': 'string',
            'Tags': [
                {
                    'Key': 'string',
                    'Value': 'string'
                },
            ],
            'ConnectivityType': 'private'|'public'
        },
    ],
    'NextToken': 'string'
}

Response Structure

  • (dict) --

    • NatGateways (list) --

      Information about the NAT gateways.

      • (dict) --

        Describes a NAT gateway.

        • CreateTime (datetime) --

          The date and time the NAT gateway was created.

        • DeleteTime (datetime) --

          The date and time the NAT gateway was deleted, if applicable.

        • FailureCode (string) --

          If the NAT gateway could not be created, specifies the error code for the failure. (InsufficientFreeAddressesInSubnet | Gateway.NotAttached | InvalidAllocationID.NotFound | Resource.AlreadyAssociated | InternalError | InvalidSubnetID.NotFound )

        • FailureMessage (string) --

          If the NAT gateway could not be created, specifies the error message for the failure, that corresponds to the error code.

          • For InsufficientFreeAddressesInSubnet: "Subnet has insufficient free addresses to create this NAT gateway"

          • For Gateway.NotAttached: "Network vpc-xxxxxxxx has no Internet gateway attached"

          • For InvalidAllocationID.NotFound: "Elastic IP address eipalloc-xxxxxxxx could not be associated with this NAT gateway"

          • For Resource.AlreadyAssociated: "Elastic IP address eipalloc-xxxxxxxx is already associated"

          • For InternalError: "Network interface eni-xxxxxxxx, created and used internally by this NAT gateway is in an invalid state. Please try again."

          • For InvalidSubnetID.NotFound: "The specified subnet subnet-xxxxxxxx does not exist or could not be found."

        • NatGatewayAddresses (list) --

          Information about the IP addresses and network interface associated with the NAT gateway.

          • (dict) --

            Describes the IP addresses and network interface associated with a NAT gateway.

            • AllocationId (string) --

              [Public NAT gateway only] The allocation ID of the Elastic IP address that's associated with the NAT gateway.

            • NetworkInterfaceId (string) --

              The ID of the network interface associated with the NAT gateway.

            • PrivateIp (string) --

              The private IP address associated with the NAT gateway.

            • PublicIp (string) --

              [Public NAT gateway only] The Elastic IP address associated with the NAT gateway.

        • NatGatewayId (string) --

          The ID of the NAT gateway.

        • ProvisionedBandwidth (dict) --

          Reserved. If you need to sustain traffic greater than the documented limits , contact us through the Support Center .

        • State (string) --

          The state of the NAT gateway.

          • pending : The NAT gateway is being created and is not ready to process traffic.

          • failed : The NAT gateway could not be created. Check the failureCode and failureMessage fields for the reason.

          • available : The NAT gateway is able to process traffic. This status remains until you delete the NAT gateway, and does not indicate the health of the NAT gateway.

          • deleting : The NAT gateway is in the process of being terminated and may still be processing traffic.

          • deleted : The NAT gateway has been terminated and is no longer processing traffic.

        • SubnetId (string) --

          The ID of the subnet in which the NAT gateway is located.

        • VpcId (string) --

          The ID of the VPC in which the NAT gateway is located.

        • Tags (list) --

          The tags for the NAT gateway.

          • (dict) --

            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 255 Unicode characters.

        • ConnectivityType (string) --

          Indicates whether the NAT gateway supports public or private connectivity.

    • NextToken (string) --

      The token to use to retrieve the next page of results. This value is null when there are no more results to return.