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AWS Fundamentals
L1 ConstructAWS::Greengrass::CoreDefinition

CfnCoreDefinition

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. > 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) .

Import

import { CfnCoreDefinition } from 'aws-cdk-lib/aws-greengrass';

Or use the module namespace:

import * as greengrass from 'aws-cdk-lib/aws-greengrass';
// greengrass.CfnCoreDefinition

Properties

Configuration passed to the constructor as CfnCoreDefinitionProps.

nameRequired
string

The name of the core definition.

initialVersionOptional
IResolvable | CoreDefinitionVersionProperty

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) . > 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.

tagsOptional
any

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](https://docs.aws.amazon.com/greengrass/v1/developerguide/tagging.html) 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 CloudFormation templates. ```json "Tags": { "KeyName0": "value", "KeyName1": "value", "KeyName2": "value" } ```

CloudFormation Resource

This L1 construct maps directly to the following CloudFormation resource type.

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