CfnFunction

class aws_cdk.aws_cloudfront.CfnFunction(scope, id, *, function_code, function_config, name, auto_publish=None, function_metadata=None)

Bases: CfnResource

Creates a CloudFront function.

To create a function, you provide the function code and some configuration information about the function. The response contains an Amazon Resource Name (ARN) that uniquely identifies the function, and the function’s stage.

By default, when you create a function, it’s in the DEVELOPMENT stage. In this stage, you can test the function in the CloudFront console (or with TestFunction in the CloudFront API).

When you’re ready to use your function with a CloudFront distribution, publish the function to the LIVE stage. You can do this in the CloudFront console, with PublishFunction in the CloudFront API, or by updating the AWS::CloudFront::Function resource with the AutoPublish property set to true . When the function is published to the LIVE stage, you can attach it to a distribution’s cache behavior, using the function’s ARN.

To automatically publish the function to the LIVE stage when it’s created, set the AutoPublish property to true .

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-cloudfront-function.html
CloudformationResource:: AWS::CloudFront::Function
ExampleMetadata:: fixture=_generated

Example:

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

cfn_function = cloudfront.CfnFunction(self, "MyCfnFunction",
    function_code="functionCode",
    function_config=cloudfront.CfnFunction.FunctionConfigProperty(
        comment="comment",
        runtime="runtime",

        # the properties below are optional
        key_value_store_associations=[cloudfront.CfnFunction.KeyValueStoreAssociationProperty(
            key_value_store_arn="keyValueStoreArn"
        )]
    ),
    name="name",

    # the properties below are optional
    auto_publish=False,
    function_metadata=cloudfront.CfnFunction.FunctionMetadataProperty(
        function_arn="functionArn"
    )
)

Parameters:

scope (Construct) – Scope in which this resource is defined.
id (str) – Construct identifier for this resource (unique in its scope).
function_code (str) – The function code. For more information about writing a CloudFront function, see Writing function code for CloudFront Functions in the Amazon CloudFront Developer Guide .
function_config (Union[IResolvable, FunctionConfigProperty, Dict[str, Any]]) – Contains configuration information about a CloudFront function.
name (str) – A name to identify the function.
auto_publish (Union[bool, IResolvable, None]) – A flag that determines whether to automatically publish the function to the LIVE stage when it’s created. To automatically publish to the LIVE stage, set this property to true .
function_metadata (Union[IResolvable, FunctionMetadataProperty, Dict[str, Any], None]) – Contains metadata about a CloudFront function.

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_dependency(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_depends_on(target)

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

Parameters:

target (CfnResource) –

Deprecated:

use addDependency

Stability:

deprecated

Return type:

None

add_metadata(key, value)

Add a value to the CloudFormation Resource Metadata.

Parameters:

key (str) –
value (Any) –

See:

Return type:

None

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.

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 intermediate 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). 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:

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 resource, please consult that specific resource’s documentation.

See:

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-deletionpolicy.html#aws-attribute-deletionpolicy-options

Return type:

None

get_att(attribute_name, type_hint=None)

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.
type_hint (Optional[ResolutionTypeHint]) –

Return type:

Reference

get_metadata(key)

Retrieve a value value from the CloudFormation Resource Metadata.

Parameters:

key (str) –

See:

Return type:

Any

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.

inspect(inspector)

Examines the CloudFormation resource and discloses attributes.

Parameters:: inspector (TreeInspector) – tree inspector to collect and process attributes.
Return type:: None

obtain_dependencies()

Retrieves an array of resources this resource depends on.

This assembles dependencies on resources across stacks (including nested stacks) automatically.

Return type:: List[Union[Stack, CfnResource]]

obtain_resource_dependencies()

Get a shallow copy of dependencies between this resource and other resources in the same stack.

Return type:: List[CfnResource]

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

remove_dependency(target)

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.

Parameters:

target (CfnResource) –

Return type:

None

replace_dependency(target, new_target)

Replaces one dependency with another.

Parameters:

target (CfnResource) – The dependency to replace.
new_target (CfnResource) – The new dependency to add.

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::CloudFront::Function'

attr_function_arn

.

arn:aws:cloudfront::123456789012:function/ExampleFunction .

To get the function ARN, use the following syntax:

!GetAtt *Function_Logical_ID* .FunctionMetadata.FunctionARN

CloudformationAttribute:: FunctionARN
Type:: The ARN of the function. For example

attr_function_metadata_function_arn

The Amazon Resource Name (ARN) of the function.

The ARN uniquely identifies the function.

CloudformationAttribute:: FunctionMetadata.FunctionARN

attr_stage

Stage

Type:: cloudformationAttribute

auto_publish: A flag that determines whether to automatically publish the function to the LIVE stage when it’s created.

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

cfn_resource_type: AWS resource type.

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.

function_code: The function code.

function_config: Contains configuration information about a CloudFront function.

function_metadata: Contains metadata about a CloudFront function.

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).

Returns:

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

name: A name to identify the function.

node: The tree node.

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 }).

stack

The stack in which this element is defined.

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

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(x)

Check whether the given object is a CfnResource.

Parameters:

x (Any) –

Return type:

bool

classmethod is_construct(x)

Checks if x is a construct.

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:: x (Any) – Any object.
Return type:: bool
Returns:: true if x is an object created from a class which extends Construct.

FunctionConfigProperty

class CfnFunction.FunctionConfigProperty(*, comment, runtime, key_value_store_associations=None)

Bases: object

Contains configuration information about a CloudFront function.

Parameters:

comment (str) – A comment to describe the function.
runtime (str) – The function’s runtime environment version.
key_value_store_associations (Union[IResolvable, Sequence[Union[IResolvable, KeyValueStoreAssociationProperty, Dict[str, Any]]], None]) – The configuration for the key value store associations.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cloudfront-function-functionconfig.html

ExampleMetadata:

fixture=_generated

Example:

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

function_config_property = cloudfront.CfnFunction.FunctionConfigProperty(
    comment="comment",
    runtime="runtime",

    # the properties below are optional
    key_value_store_associations=[cloudfront.CfnFunction.KeyValueStoreAssociationProperty(
        key_value_store_arn="keyValueStoreArn"
    )]
)

Attributes

comment

A comment to describe the function.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cloudfront-function-functionconfig.html#cfn-cloudfront-function-functionconfig-comment

key_value_store_associations

The configuration for the key value store associations.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cloudfront-function-functionconfig.html#cfn-cloudfront-function-functionconfig-keyvaluestoreassociations

runtime

The function’s runtime environment version.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cloudfront-function-functionconfig.html#cfn-cloudfront-function-functionconfig-runtime

FunctionMetadataProperty

class CfnFunction.FunctionMetadataProperty(*, function_arn=None)

Bases: object

Contains metadata about a CloudFront function.

Parameters:: function_arn (Optional[str]) – The Amazon Resource Name (ARN) of the function. The ARN uniquely identifies the function.
See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cloudfront-function-functionmetadata.html
ExampleMetadata:: fixture=_generated

Example:

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

function_metadata_property = cloudfront.CfnFunction.FunctionMetadataProperty(
    function_arn="functionArn"
)

Attributes

function_arn

The Amazon Resource Name (ARN) of the function.

The ARN uniquely identifies the function.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cloudfront-function-functionmetadata.html#cfn-cloudfront-function-functionmetadata-functionarn

KeyValueStoreAssociationProperty

class CfnFunction.KeyValueStoreAssociationProperty(*, key_value_store_arn)

Bases: object

The key value store association.

Parameters:: key_value_store_arn (str) – The Amazon Resource Name (ARN) of the key value store association.
See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cloudfront-function-keyvaluestoreassociation.html
ExampleMetadata:: fixture=_generated

Example:

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

key_value_store_association_property = cloudfront.CfnFunction.KeyValueStoreAssociationProperty(
    key_value_store_arn="keyValueStoreArn"
)

Attributes

key_value_store_arn

The Amazon Resource Name (ARN) of the key value store association.

See:: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-cloudfront-function-keyvaluestoreassociation.html#cfn-cloudfront-function-keyvaluestoreassociation-keyvaluestorearn