# AWS::RDS::DBClusterParameterGroup The AWS::RDS::DBClusterParameterGroup resource creates a new Amazon RDS DB cluster parameter group. For more information, see Managing an Amazon Aurora DB Cluster in the Amazon Aurora User Guide. ## Syntax To declare this entity in your AWS CloudFormation template, use the following syntax: ### JSON <pre> { "Type" : "AWS::RDS::DBClusterParameterGroup", "Properties" : { "<a href="#description" title="Description">Description</a>" : <i>String</i>, "<a href="#family" title="Family">Family</a>" : <i>String</i>, "<a href="#parameters" title="Parameters">Parameters</a>" : <i>Map</i>, "<a href="#dbclusterparametergroupname" title="DBClusterParameterGroupName">DBClusterParameterGroupName</a>" : <i>String</i>, "<a href="#tags" title="Tags">Tags</a>" : <i>[ <a href="tag.md">Tag</a>, ... ]</i> } } </pre> ### YAML <pre> Type: AWS::RDS::DBClusterParameterGroup Properties: <a href="#description" title="Description">Description</a>: <i>String</i> <a href="#family" title="Family">Family</a>: <i>String</i> <a href="#parameters" title="Parameters">Parameters</a>: <i>Map</i> <a href="#dbclusterparametergroupname" title="DBClusterParameterGroupName">DBClusterParameterGroupName</a>: <i>String</i> <a href="#tags" title="Tags">Tags</a>: <i> - <a href="tag.md">Tag</a></i> </pre> ## Properties #### Description A friendly description for this DB cluster parameter group. _Required_: Yes _Type_: String _Update requires_: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement) #### Family The DB cluster parameter group family name. A DB cluster parameter group can be associated with one and only one DB cluster parameter group family, and can be applied only to a DB cluster running a DB engine and engine version compatible with that DB cluster parameter group family. _Required_: Yes _Type_: String _Update requires_: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement) #### Parameters An array of parameters to be modified. A maximum of 20 parameters can be modified in a single request. _Required_: Yes _Type_: Map _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) #### DBClusterParameterGroupName _Required_: No _Type_: String _Pattern_: <code>^[a-zA-Z]{1}(?:-?[a-zA-Z0-9])*$</code> _Update requires_: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement) #### Tags The list of tags for the cluster parameter group. _Required_: No _Type_: List of <a href="tag.md">Tag</a> _Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt) ## Return Values ### Ref When you pass the logical ID of this resource to the intrinsic `Ref` function, Ref returns the DBClusterParameterGroupName.