CfnCoreDefinition

class aws_cdk.aws_greengrass.CfnCoreDefinition(scope, id, *, name, initial_version=None, tags=None)

Bases: aws_cdk.core.CfnResource

A CloudFormation AWS::Greengrass::CoreDefinition.

The AWS::Greengrass::CoreDefinition resource represents a core definition for AWS IoT Greengrass . Core definitions are used to organize your core definition versions.

Core definitions can reference multiple core definition versions. All core definition versions must be associated with a core definition. Each core definition version can contain one Greengrass core. .. epigraph:

When you create a core definition, you can optionally include an initial core definition version. To associate a core definition version later, create an ```AWS::Greengrass::CoreDefinitionVersion`` <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-coredefinitionversion.html>`_ resource and specify the ID of this core definition.

After you create the core definition version that contains the core you want to deploy, you must add it to your group version. For more information, see ```AWS::Greengrass::Group`` <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-group.html>`_ .
CloudformationResource

AWS::Greengrass::CoreDefinition

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-coredefinition.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_greengrass as greengrass

# tags: Any

cfn_core_definition = greengrass.CfnCoreDefinition(self, "MyCfnCoreDefinition",
    name="name",

    # the properties below are optional
    initial_version=greengrass.CfnCoreDefinition.CoreDefinitionVersionProperty(
        cores=[greengrass.CfnCoreDefinition.CoreProperty(
            certificate_arn="certificateArn",
            id="id",
            thing_arn="thingArn",

            # the properties below are optional
            sync_shadow=False
        )]
    ),
    tags=tags
)

Create a new AWS::Greengrass::CoreDefinition.

Parameters

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::Greengrass::CoreDefinition'
attr_arn

The Amazon Resource Name (ARN) of the CoreDefinition , such as arn:aws:greengrass:us-east-1:  :/greengrass/definition/cores/1234a5b6-78cd-901e-2fgh-3i45j6k178l9 .

CloudformationAttribute

Arn

Return type

str

attr_id

The ID of the CoreDefinition , such as 1234a5b6-78cd-901e-2fgh-3i45j6k178l9 .

CloudformationAttribute

Id

Return type

str

attr_latest_version_arn

The ARN of the last CoreDefinitionVersion that was added to the CoreDefinition , such as arn:aws:greengrass:us-east-1:  :/greengrass/definition/cores/1234a5b6-78cd-901e-2fgh-3i45j6k178l9/versions/9876ac30-4bdb-4f9d-95af-b5fdb66be1a2 .

CloudformationAttribute

LatestVersionArn

Return type

str

attr_name

The name of the CoreDefinition , such as MyCoreDefinition .

CloudformationAttribute

Name

Return type

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]

initial_version

The core definition version to include when the core definition is created.

Currently, a core definition version can contain only one `core <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-coredefinition-core.html>`_ . .. epigraph:

To associate a core definition version after the core definition is created, create an ```AWS::Greengrass::CoreDefinitionVersion`` <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-coredefinitionversion.html>`_ resource and specify the ID of this core definition.
Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-coredefinition.html#cfn-greengrass-coredefinition-initialversion

Return type

Union[IResolvable, CoreDefinitionVersionProperty, 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.

name

The name of the core definition.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-coredefinition.html#cfn-greengrass-coredefinition-name

Return type

str

node

The construct tree node associated with this construct.

Return type

ConstructNode

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

Application-specific metadata to attach to the core definition.

You can use tags in IAM policies to control access to AWS IoT Greengrass resources. You can also use tags to categorize your resources. For more information, see Tagging Your AWS IoT Greengrass Resources in the Developer Guide .

This Json property type is processed as a map of key-value pairs. It uses the following format, which is different from most Tags implementations in AWS CloudFormation templates:

"Tags": { "KeyName0": "value", "KeyName1": "value", "KeyName2": "value"
}
Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-coredefinition.html#cfn-greengrass-coredefinition-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

CoreDefinitionVersionProperty

class CfnCoreDefinition.CoreDefinitionVersionProperty(*, cores)

Bases: object

A core definition version contains a Greengrass core .

After you create a core definition version that contains the core you want to deploy, you must add it to your group version. For more information, see `AWS::Greengrass::Group <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-group.html>`_ .

In an AWS CloudFormation template, CoreDefinitionVersion is the property type of the InitialVersion property in the `AWS::Greengrass::CoreDefinition <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-greengrass-coredefinition.html>`_ resource.

Parameters

cores (Union[IResolvable, Sequence[Union[IResolvable, CoreProperty, Dict[str, Any]]]]) – The Greengrass core in this version. Currently, the Cores property for a core definition version can contain only one core.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-coredefinition-coredefinitionversion.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_greengrass as greengrass

core_definition_version_property = greengrass.CfnCoreDefinition.CoreDefinitionVersionProperty(
    cores=[greengrass.CfnCoreDefinition.CoreProperty(
        certificate_arn="certificateArn",
        id="id",
        thing_arn="thingArn",

        # the properties below are optional
        sync_shadow=False
    )]
)

Attributes

cores

The Greengrass core in this version.

Currently, the Cores property for a core definition version can contain only one core.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-coredefinition-coredefinitionversion.html#cfn-greengrass-coredefinition-coredefinitionversion-cores

Return type

Union[IResolvable, List[Union[IResolvable, CoreProperty]]]

CoreProperty

class CfnCoreDefinition.CoreProperty(*, certificate_arn, id, thing_arn, sync_shadow=None)

Bases: object

A core is an AWS IoT device that runs the AWS IoT Greengrass core software and manages local processes for a Greengrass group.

For more information, see What Is AWS IoT Greengrass ? in the Developer Guide .

In an AWS CloudFormation template, the Cores property of the `CoreDefinitionVersion <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-coredefinition-coredefinitionversion.html>`_ property type contains a list of Core property types. Currently, the list can contain only one core.

Parameters
  • certificate_arn (str) – The Amazon Resource Name (ARN) of the device certificate for the core. This X.509 certificate is used to authenticate the core with AWS IoT and AWS IoT Greengrass services.

  • id (str) – A descriptive or arbitrary ID for the core. This value must be unique within the core definition version. Maximum length is 128 characters with pattern [a-zA-Z0-9:_-]+ .

  • thing_arn (str) – The ARN of the core, which is an AWS IoT device (thing).

  • sync_shadow (Union[bool, IResolvable, None]) – Indicates whether the core’s local shadow is synced with the cloud automatically. The default is false.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-coredefinition-core.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_greengrass as greengrass

core_property = greengrass.CfnCoreDefinition.CoreProperty(
    certificate_arn="certificateArn",
    id="id",
    thing_arn="thingArn",

    # the properties below are optional
    sync_shadow=False
)

Attributes

certificate_arn

The Amazon Resource Name (ARN) of the device certificate for the core.

This X.509 certificate is used to authenticate the core with AWS IoT and AWS IoT Greengrass services.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-coredefinition-core.html#cfn-greengrass-coredefinition-core-certificatearn

Return type

str

id

A descriptive or arbitrary ID for the core.

This value must be unique within the core definition version. Maximum length is 128 characters with pattern [a-zA-Z0-9:_-]+ .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-coredefinition-core.html#cfn-greengrass-coredefinition-core-id

Return type

str

sync_shadow

Indicates whether the core’s local shadow is synced with the cloud automatically.

The default is false.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-coredefinition-core.html#cfn-greengrass-coredefinition-core-syncshadow

Return type

Union[bool, IResolvable, None]

thing_arn

The ARN of the core, which is an AWS IoT device (thing).

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-greengrass-coredefinition-core.html#cfn-greengrass-coredefinition-core-thingarn

Return type

str