class CfnInstanceGroupConfig (construct)

Language	Type name
.NET	`Amazon.CDK.AWS.EMR.CfnInstanceGroupConfig`
Java	`software.amazon.awscdk.services.emr.CfnInstanceGroupConfig`
Python	`aws_cdk.aws_emr.CfnInstanceGroupConfig`
TypeScript	`@aws-cdk/aws-emr` » `CfnInstanceGroupConfig`

Implements IConstruct, IConstruct, IDependable, IInspectable

A CloudFormation AWS::EMR::InstanceGroupConfig.

Use InstanceGroupConfig to define instance groups for an EMR cluster. A cluster can not use both instance groups and instance fleets. For more information, see Create a Cluster with Instance Fleets or Uniform Instance Groups in the Amazon EMR Management Guide .

You can currently only add task instance groups to a cluster with this resource. If you use this resource, CloudFormation waits for the cluster launch to complete before adding the task instance group to the cluster. In order to add task instance groups to the cluster as part of the cluster launch and minimize delays in provisioning task nodes, use the TaskInstanceGroups subproperty for the AWS::EMR::Cluster JobFlowInstancesConfig property instead. To use this subproperty, see AWS::EMR::Cluster for examples.

Example

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as emr from '@aws-cdk/aws-emr';

declare const configurationProperty_: emr.CfnInstanceGroupConfig.ConfigurationProperty;
const cfnInstanceGroupConfig = new emr.CfnInstanceGroupConfig(this, 'MyCfnInstanceGroupConfig', {
  instanceCount: 123,
  instanceRole: 'instanceRole',
  instanceType: 'instanceType',
  jobFlowId: 'jobFlowId',

  // the properties below are optional
  autoScalingPolicy: {
    constraints: {
      maxCapacity: 123,
      minCapacity: 123,
    },
    rules: [{
      action: {
        simpleScalingPolicyConfiguration: {
          scalingAdjustment: 123,

          // the properties below are optional
          adjustmentType: 'adjustmentType',
          coolDown: 123,
        },

        // the properties below are optional
        market: 'market',
      },
      name: 'name',
      trigger: {
        cloudWatchAlarmDefinition: {
          comparisonOperator: 'comparisonOperator',
          metricName: 'metricName',
          period: 123,
          threshold: 123,

          // the properties below are optional
          dimensions: [{
            key: 'key',
            value: 'value',
          }],
          evaluationPeriods: 123,
          namespace: 'namespace',
          statistic: 'statistic',
          unit: 'unit',
        },
      },

      // the properties below are optional
      description: 'description',
    }],
  },
  bidPrice: 'bidPrice',
  configurations: [{
    classification: 'classification',
    configurationProperties: {
      configurationPropertiesKey: 'configurationProperties',
    },
    configurations: [configurationProperty_],
  }],
  customAmiId: 'customAmiId',
  ebsConfiguration: {
    ebsBlockDeviceConfigs: [{
      volumeSpecification: {
        sizeInGb: 123,
        volumeType: 'volumeType',

        // the properties below are optional
        iops: 123,
      },

      // the properties below are optional
      volumesPerInstance: 123,
    }],
    ebsOptimized: false,
  },
  market: 'market',
  name: 'name',
});

Initializer

new CfnInstanceGroupConfig(scope: Construct, id: string, props: CfnInstanceGroupConfigProps)

Parameters

scope Construct — - scope in which this resource is defined.
id string — - scoped id of the resource.
props CfnInstanceGroupConfigProps — - resource properties.

Create a new AWS::EMR::InstanceGroupConfig.

Construct Props

Name	Type	Description
instanceCount	`number`	Target number of instances for the instance group.
instanceRole	`string`	The role of the instance group in the cluster.
instanceType	`string`	The Amazon EC2 instance type for all instances in the instance group.
jobFlowId	`string`	The ID of an Amazon EMR cluster that you want to associate this instance group with.
autoScalingPolicy?	`IResolvable` `\|` `AutoScalingPolicyProperty`	`AutoScalingPolicy` is a subproperty of `InstanceGroupConfig` .
bidPrice?	`string`	If specified, indicates that the instance group uses Spot Instances.
configurations?	`IResolvable` `\|` `IResolvable` `\|` `ConfigurationProperty[]`	> Amazon EMR releases 4.x or later.
customAmiId?	`string`	The custom AMI ID to use for the provisioned instance group.
ebsConfiguration?	`IResolvable` `\|` `EbsConfigurationProperty`	`EbsConfiguration` determines the EBS volumes to attach to EMR cluster instances.
market?	`string`	Market type of the Amazon EC2 instances used to create a cluster node.
name?	`string`	Friendly name given to the instance group.

instanceCount

Type: number

Target number of instances for the instance group.

instanceRole

Type: string

The role of the instance group in the cluster.

Allowed Values : TASK

instanceType

Type: string

The Amazon EC2 instance type for all instances in the instance group.

jobFlowId

Type: string

The ID of an Amazon EMR cluster that you want to associate this instance group with.

autoScalingPolicy?

Type: IResolvable | AutoScalingPolicyProperty (optional)

AutoScalingPolicy is a subproperty of InstanceGroupConfig .

AutoScalingPolicy defines how an instance group dynamically adds and terminates EC2 instances in response to the value of a CloudWatch metric. For more information, see Using Automatic Scaling in Amazon EMR in the Amazon EMR Management Guide .

bidPrice?

Type: string (optional)

If specified, indicates that the instance group uses Spot Instances.

This is the maximum price you are willing to pay for Spot Instances. Specify OnDemandPrice to set the amount equal to the On-Demand price, or specify an amount in USD.

configurations?

Type: IResolvable | IResolvable | ConfigurationProperty[] (optional)

Amazon EMR releases 4.x or later.

The list of configurations supplied for an Amazon EMR cluster instance group. You can specify a separate configuration for each instance group (master, core, and task).

customAmiId?

Type: string (optional)

The custom AMI ID to use for the provisioned instance group.

ebsConfiguration?

Type: IResolvable | EbsConfigurationProperty (optional)

EbsConfiguration determines the EBS volumes to attach to EMR cluster instances.

market?

Type: string (optional)

Market type of the Amazon EC2 instances used to create a cluster node.

name?

Type: string (optional)

Friendly name given to the instance group.

Properties

Name	Type	Description
cfnOptions	`ICfnResourceOptions`	Options for this resource, such as condition, update policy etc.
cfnProperties	`{ [string]: any }`
cfnResourceType	`string`	AWS resource type.
creationStack	`string[]`
instanceCount	`number`	Target number of instances for the instance group.
instanceRole	`string`	The role of the instance group in the cluster.
instanceType	`string`	The Amazon EC2 instance type for all instances in the instance group.
jobFlowId	`string`	The ID of an Amazon EMR cluster that you want to associate this instance group with.
logicalId	`string`	The logical ID for this CloudFormation stack element.
node	`ConstructNode`	The construct tree node associated with this construct.
ref	`string`	Return a string that will be resolved to a CloudFormation `{ Ref }` for this element.
stack	`Stack`	The stack in which this element is defined.
autoScalingPolicy?	`IResolvable` `\|` `AutoScalingPolicyProperty`	`AutoScalingPolicy` is a subproperty of `InstanceGroupConfig` .
bidPrice?	`string`	If specified, indicates that the instance group uses Spot Instances.
configurations?	`IResolvable` `\|` `IResolvable` `\|` `ConfigurationProperty[]`	> Amazon EMR releases 4.x or later.
customAmiId?	`string`	The custom AMI ID to use for the provisioned instance group.
ebsConfiguration?	`IResolvable` `\|` `EbsConfigurationProperty`	`EbsConfiguration` determines the EBS volumes to attach to EMR cluster instances.
market?	`string`	Market type of the Amazon EC2 instances used to create a cluster node.
name?	`string`	Friendly name given to the instance group.
static CFN_RESOURCE_TYPE_NAME	`string`	The CloudFormation resource type name for this resource class.

cfnOptions

Type: ICfnResourceOptions

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

cfnProperties

Type: { [string]: any }

cfnResourceType

Type: string

AWS resource type.

creationStack

Type: string[]

instanceCount

Type: number

Target number of instances for the instance group.

instanceRole

Type: string

The role of the instance group in the cluster.

Allowed Values : TASK

instanceType

Type: string

The Amazon EC2 instance type for all instances in the instance group.

jobFlowId

Type: string

The ID of an Amazon EMR cluster that you want to associate this instance group with.

logicalId

Type: string

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).

node

Type: ConstructNode

The construct tree node associated with this construct.

ref

Type: string

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

Type: Stack

The stack in which this element is defined.

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

autoScalingPolicy?

Type: IResolvable | AutoScalingPolicyProperty (optional)

AutoScalingPolicy is a subproperty of InstanceGroupConfig .

bidPrice?

Type: string (optional)

If specified, indicates that the instance group uses Spot Instances.

This is the maximum price you are willing to pay for Spot Instances. Specify OnDemandPrice to set the amount equal to the On-Demand price, or specify an amount in USD.

configurations?

Type: IResolvable | IResolvable | ConfigurationProperty[] (optional)

Amazon EMR releases 4.x or later.

The list of configurations supplied for an Amazon EMR cluster instance group. You can specify a separate configuration for each instance group (master, core, and task).

customAmiId?

Type: string (optional)

The custom AMI ID to use for the provisioned instance group.

ebsConfiguration?

Type: IResolvable | EbsConfigurationProperty (optional)

EbsConfiguration determines the EBS volumes to attach to EMR cluster instances.

market?

Type: string (optional)

Market type of the Amazon EC2 instances used to create a cluster node.

name?

Type: string (optional)

Friendly name given to the instance group.

static CFN_RESOURCE_TYPE_NAME

Type: string

The CloudFormation resource type name for this resource class.

Methods

Name	Description
addDeletionOverride(path)	Syntactic sugar for `addOverride(path, undefined)`.
addDependsOn(target)	Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.
addMetadata(key, value)	Add a value to the CloudFormation Resource Metadata.
addOverride(path, value)	Adds an override to the synthesized CloudFormation resource.
addPropertyDeletionOverride(propertyPath)	Adds an override that deletes the value of a property from the resource definition.
addPropertyOverride(propertyPath, value)	Adds an override to a resource property.
applyRemovalPolicy(policy?, options?)	Sets the deletion policy of the resource based on the removal policy specified.
getAtt(attributeName)	Returns a token for an runtime attribute of this resource.
getMetadata(key)	Retrieve a value value from the CloudFormation Resource Metadata.
inspect(inspector)	Examines the CloudFormation resource and discloses attributes.
overrideLogicalId(newLogicalId)	Overrides the auto-generated logical ID with a specific ID.
toString()	Returns a string representation of this construct.
protected renderProperties(props)

addDeletionOverride(path)

public addDeletionOverride(path: string): void

Parameters

path string — The path of the value to delete.

Syntactic sugar for addOverride(path, undefined).

addDependsOn(target)

public addDependsOn(target: CfnResource): void

Parameters

target CfnResource

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.

addMetadata(key, value)

public addMetadata(key: string, value: any): void

Parameters

key string
value any

Add a value to the CloudFormation Resource Metadata.

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.](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.)

addOverride(path, value)

public addOverride(path: string, value: any): void

Parameters

path string — - The path of the property, you can use dot notation to override values in complex types.
value any — - The 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,

cfnResource.addOverride('Properties.GlobalSecondaryIndexes.0.Projection.NonKeyAttributes', ['myattribute']);
cfnResource.addOverride('Properties.GlobalSecondaryIndexes.1.ProjectionType', 'INCLUDE');

would add the overrides

"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.

addPropertyDeletionOverride(propertyPath)

public addPropertyDeletionOverride(propertyPath: string): void

Parameters

propertyPath string — The path to the property.

Adds an override that deletes the value of a property from the resource definition.

addPropertyOverride(propertyPath, value)

public addPropertyOverride(propertyPath: string, value: any): void

Parameters

propertyPath string — The path of the property.
value any — The value.

Adds an override to a resource property.

Syntactic sugar for addOverride("Properties.<...>", value).

applyRemovalPolicy(policy?, options?)

public applyRemovalPolicy(policy?: RemovalPolicy, options?: RemovalPolicyOptions): void

Parameters

policy RemovalPolicy
options RemovalPolicyOptions

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).

getAtt(attributeName)

public getAtt(attributeName: string): Reference

Parameters

attributeName string — The name of the attribute.

Returns

Reference

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.

getMetadata(key)

public getMetadata(key: string): any

Parameters

key string

Returns

any

Retrieve a value value from the CloudFormation Resource Metadata.

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)

public inspect(inspector: TreeInspector): void

Parameters

inspector TreeInspector — - tree inspector to collect and process attributes.

Examines the CloudFormation resource and discloses attributes.

overrideLogicalId(newLogicalId)

public overrideLogicalId(newLogicalId: string): void

Parameters

newLogicalId string — The new logical ID to use for this stack element.

Overrides the auto-generated logical ID with a specific ID.

toString()

public toString(): string

Returns

string

Returns a string representation of this construct.

protected renderProperties(props)

protected renderProperties(props: { [string]: any }): { [string]: any }

Parameters

props { [string]: any }

Returns

{ [string]: any }