CfnNetworkInterface

class aws_cdk.aws_ec2.CfnNetworkInterface(scope, id, *, subnet_id, description=None, group_set=None, interface_type=None, ipv6_address_count=None, ipv6_addresses=None, private_ip_address=None, private_ip_addresses=None, secondary_private_ip_address_count=None, source_dest_check=None, tags=None)

Bases: aws_cdk.core.CfnResource

A CloudFormation AWS::EC2::NetworkInterface.

Describes a network interface in an Amazon EC2 instance for AWS CloudFormation .

CloudformationResource

AWS::EC2::NetworkInterface

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-networkinterface.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_network_interface = ec2.CfnNetworkInterface(self, "MyCfnNetworkInterface",
    subnet_id="subnetId",

    # the properties below are optional
    description="description",
    group_set=["groupSet"],
    interface_type="interfaceType",
    ipv6_address_count=123,
    ipv6_addresses=[ec2.CfnNetworkInterface.InstanceIpv6AddressProperty(
        ipv6_address="ipv6Address"
    )],
    private_ip_address="privateIpAddress",
    private_ip_addresses=[ec2.CfnNetworkInterface.PrivateIpAddressSpecificationProperty(
        primary=False,
        private_ip_address="privateIpAddress"
    )],
    secondary_private_ip_address_count=123,
    source_dest_check=False,
    tags=[CfnTag(
        key="key",
        value="value"
    )]
)

Create a new AWS::EC2::NetworkInterface.

Parameters
  • scope (Construct) –

    • scope in which this resource is defined.

  • id (str) –

    • scoped id of the resource.

  • subnet_id (str) – The ID of the subnet to associate with the network interface.

  • description (Optional[str]) – A description for the network interface.

  • group_set (Optional[Sequence[str]]) – The security group IDs associated with this network interface.

  • interface_type (Optional[str]) – The type of network interface. The default is interface . The supported values are efa and trunk .

  • ipv6_address_count (Union[int, float, None]) – The number of IPv6 addresses to assign to a network interface. Amazon EC2 automatically selects the IPv6 addresses from the subnet range. To specify specific IPv6 addresses, use the Ipv6Addresses property and don’t specify this property.

  • ipv6_addresses (Union[IResolvable, Sequence[Union[IResolvable, InstanceIpv6AddressProperty]], None]) – One or more specific IPv6 addresses from the IPv6 CIDR block range of your subnet to associate with the network interface. If you’re specifying a number of IPv6 addresses, use the Ipv6AddressCount property and don’t specify this property.

  • private_ip_address (Optional[str]) – Assigns a single private IP address to the network interface, which is used as the primary private IP address. If you want to specify multiple private IP address, use the PrivateIpAddresses property.

  • private_ip_addresses (Union[IResolvable, Sequence[Union[IResolvable, PrivateIpAddressSpecificationProperty]], None]) – Assigns private IP addresses to the network interface. You can specify a primary private IP address by setting the value of the Primary property to true in the PrivateIpAddressSpecification property. If you want EC2 to automatically assign private IP addresses, use the SecondaryPrivateIpAddressCount property and do not specify this property.

  • secondary_private_ip_address_count (Union[int, float, None]) – The number of secondary private IPv4 addresses to assign to a network interface. When you specify a number of secondary IPv4 addresses, Amazon EC2 selects these IP addresses within the subnet’s IPv4 CIDR range. You can’t specify this option and specify more than one private IP address using privateIpAddresses . The number of IP addresses you can assign to a network interface varies by instance type. For more information, see IP Addresses Per ENI Per Instance Type in the Amazon Virtual Private Cloud User Guide .

  • source_dest_check (Union[bool, IResolvable, None]) – Enable or disable source/destination checks, which ensure that the instance is either the source or the destination of any traffic that it receives. If the value is true , source/destination checks are enabled; otherwise, they are disabled. The default value is true . You must disable source/destination checks if the instance runs services such as network address translation, routing, or firewalls.

  • tags (Optional[Sequence[CfnTag]]) – An arbitrary set of tags (key-value pairs) for this network interface.

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::NetworkInterface'
attr_id

The ID of the network interface.

CloudformationAttribute

Id

Return type

str

attr_primary_private_ip_address

The primary private IP address of the network interface.

For example, 10.0.0.192 .

CloudformationAttribute

PrimaryPrivateIpAddress

Return type

str

attr_secondary_private_ip_addresses

The secondary private IP addresses of the network interface.

For example, ["10.0.0.161", "10.0.0.162", "10.0.0.163"] .

CloudformationAttribute

SecondaryPrivateIpAddresses

Return type

List[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]

description

A description for the network interface.

Link

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

Return type

Optional[str]

group_set

The security group IDs associated with this network interface.

Link

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

Return type

Optional[List[str]]

interface_type

The type of network interface.

The default is interface . The supported values are efa and trunk .

Link

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

Return type

Optional[str]

ipv6_address_count

The number of IPv6 addresses to assign to a network interface.

Amazon EC2 automatically selects the IPv6 addresses from the subnet range. To specify specific IPv6 addresses, use the Ipv6Addresses property and don’t specify this property.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-networkinterface.html#cfn-ec2-networkinterface-ipv6addresscount

Return type

Union[int, float, None]

ipv6_addresses

One or more specific IPv6 addresses from the IPv6 CIDR block range of your subnet to associate with the network interface.

If you’re specifying a number of IPv6 addresses, use the Ipv6AddressCount property and don’t specify this property.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-networkinterface.html#cfn-ec2-networkinterface-ipv6addresses

Return type

Union[IResolvable, List[Union[IResolvable, InstanceIpv6AddressProperty]], None]

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.

node

The construct tree node associated with this construct.

Return type

ConstructNode

private_ip_address

Assigns a single private IP address to the network interface, which is used as the primary private IP address.

If you want to specify multiple private IP address, use the PrivateIpAddresses property.

Link

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

Return type

Optional[str]

private_ip_addresses

Assigns private IP addresses to the network interface.

You can specify a primary private IP address by setting the value of the Primary property to true in the PrivateIpAddressSpecification property. If you want EC2 to automatically assign private IP addresses, use the SecondaryPrivateIpAddressCount property and do not specify this property.

Link

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

Return type

Union[IResolvable, List[Union[IResolvable, PrivateIpAddressSpecificationProperty]], None]

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

secondary_private_ip_address_count

The number of secondary private IPv4 addresses to assign to a network interface.

When you specify a number of secondary IPv4 addresses, Amazon EC2 selects these IP addresses within the subnet’s IPv4 CIDR range. You can’t specify this option and specify more than one private IP address using privateIpAddresses .

The number of IP addresses you can assign to a network interface varies by instance type. For more information, see IP Addresses Per ENI Per Instance Type in the Amazon Virtual Private Cloud User Guide .

Link

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

Return type

Union[int, float, None]

source_dest_check

Enable or disable source/destination checks, which ensure that the instance is either the source or the destination of any traffic that it receives.

If the value is true , source/destination checks are enabled; otherwise, they are disabled. The default value is true . You must disable source/destination checks if the instance runs services such as network address translation, routing, or firewalls.

Link

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

Return type

Union[bool, IResolvable, None]

stack

The stack in which this element is defined.

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

Return type

Stack

subnet_id

The ID of the subnet to associate with the network interface.

Link

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

Return type

str

tags

An arbitrary set of tags (key-value pairs) for this network interface.

Link

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

Return type

TagManager

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

InstanceIpv6AddressProperty

class CfnNetworkInterface.InstanceIpv6AddressProperty(*, ipv6_address)

Bases: object

Describes the IPv6 addresses to associate with the network interface.

Parameters

ipv6_address (str) – An IPv6 address to associate with the network interface.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-networkinterface-instanceipv6address.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

instance_ipv6_address_property = ec2.CfnNetworkInterface.InstanceIpv6AddressProperty(
    ipv6_address="ipv6Address"
)

Attributes

ipv6_address

An IPv6 address to associate with the network interface.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-networkinterface-instanceipv6address.html#cfn-ec2-networkinterface-instanceipv6address-ipv6address

Return type

str

PrivateIpAddressSpecificationProperty

class CfnNetworkInterface.PrivateIpAddressSpecificationProperty(*, primary, private_ip_address)

Bases: object

Describes a secondary private IPv4 address for a network interface.

Parameters
  • primary (Union[bool, IResolvable]) – Sets the private IP address as the primary private address. You can set only one primary private IP address. If you don’t specify a primary private IP address, Amazon EC2 automatically assigns a primary private IP address.

  • private_ip_address (str) – The private IP address of the network interface.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-networkinterface-privateipaddressspecification.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

private_ip_address_specification_property = ec2.CfnNetworkInterface.PrivateIpAddressSpecificationProperty(
    primary=False,
    private_ip_address="privateIpAddress"
)

Attributes

primary

Sets the private IP address as the primary private address.

You can set only one primary private IP address. If you don’t specify a primary private IP address, Amazon EC2 automatically assigns a primary private IP address.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-networkinterface-privateipaddressspecification.html#cfn-ec2-networkinterface-privateipaddressspecification-primary

Return type

Union[bool, IResolvable]

private_ip_address

The private IP address of the network interface.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-networkinterface-privateipaddressspecification.html#cfn-ec2-networkinterface-privateipaddressspecification-privateipaddress

Return type

str