AWS CloudFormation
User Guide (Version )


The AWS::RDS::DBParameterGroup resource creates a custom parameter group for an RDS database family.

This type can be declared in a template and referenced in the DBParameterGroupName property of an AWS::RDS::DBInstance resource.


Applying a parameter group to a DB instance may require the instance to reboot, resulting in a database outage for the duration of the reboot.


To declare this entity in your AWS CloudFormation template, use the following syntax:


{ "Type" : "AWS::RDS::DBParameterGroup", "Properties" : { "Description" : String, "Family" : String, "Parameters" : {Key : Value, ...}, "Tags" : [ Tag, ... ] } }


Type: AWS::RDS::DBParameterGroup Properties: Description: String Family: String Parameters: Key : Value Tags: - Tag



Provides the customer-specified description for this DB Parameter Group.

Required: Yes

Type: String

Update requires: No interruption


The DB parameter group family name. A DB parameter group can be associated with one and only one DB parameter group family, and can be applied only to a DB instance running a DB engine and engine version compatible with that DB parameter group family.


The DB parameter group family can't be changed when updating a DB parameter group.

To list all of the available parameter group families, use the following command:

aws rds describe-db-engine-versions --query "DBEngineVersions[].DBParameterGroupFamily"

The output contains duplicates.

For more information, see CreateDBParameterGroup.

Required: Yes

Type: String

Update requires: No interruption


An array of parameter names, values, and the apply method for the parameter update. At least one parameter name, value, and apply method must be supplied; subsequent arguments are optional. A maximum of 20 parameters may be modified in a single request. For more information, see Working with DB Parameter Groups in the Amazon RDS User Guide.


Valid Values (for Apply method): immediate | pending-reboot

You can use the immediate value with dynamic parameters only. You can use the pending-reboot value for both dynamic and static parameters, and changes are applied when DB Instance reboots.


Valid Values (for Apply method): pending-reboot

Required: No

Type: Map of String

Update requires: No interruption


Tags to assign to the DB parameter group.

Required: No

Type: List of Tag

Update requires: No interruption

Return Values


When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the name of the DB parameter group.

For more information about using the Ref function, see Ref.


The following example creates a parameter group for an Aurora DB cluster that applies the IGNORE_SPACE SQL mode.


{ "RDSDBParameterGroup": { "Type": "AWS::RDS::DBParameterGroup", "Properties": { "Description": "CloudFormation Sample Parameter Group", "Family": "aurora5.6", "Parameters": { "sql_mode": "IGNORE_SPACE" } } } }


--- RDSDBParameterGroup: Properties: Description: "CloudFormation Sample Parameter Group" Family: aurora5.6 Parameters: sql_mode: IGNORE_SPACE Type: "AWS::RDS::DBParameterGroup"