AWS::RDS::DBSubnetGroup

The AWS::RDS::DBSubnetGroup resource creates a database subnet group. Subnet groups must contain at least two subnets in two different Availability Zones in the same region.

For more information, see Working with DB subnet groups in the Amazon RDS User Guide.

Syntax

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

JSON

{
  "Type" : "AWS::RDS::DBSubnetGroup",
  "Properties" : {
      "DBSubnetGroupDescription" : String,
      "DBSubnetGroupName" : String,
      "SubnetIds" : [ String, ... ],
      "Tags" : [ Tag, ... ]
    }
}

YAML

Type: AWS::RDS::DBSubnetGroup
Properties:
  DBSubnetGroupDescription: String
  DBSubnetGroupName: String
  SubnetIds: 
    - String
  Tags: 
    - Tag

Properties

DBSubnetGroupDescription

The description for the DB subnet group.

Required: Yes

Type: String

Update requires: No interruption

DBSubnetGroupName

The name for the DB subnet group. This value is stored as a lowercase string.

Constraints:

• Must contain no more than 255 letters, numbers, periods, underscores, spaces, or hyphens.

• Must not be default.

• First character must be a letter.

Example: mydbsubnetgroup

Required: No

Type: String

Update requires: Replacement

SubnetIds

The EC2 Subnet IDs for the DB subnet group.

Required: Yes

Type: Array of String

Update requires: No interruption

Tags

Tags to assign to the DB subnet group.

Required: No

Type: Array of Tag

Maximum: 50

Update requires: No interruption

Return values

Ref

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

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

Examples

Create a DB subnet group

The following example creates a DB subnet group with two subnet IDs and a set of tags.

JSON

{
    "AWSTemplateFormatVersion": "2010-09-09",
    "Resources": {
        "myDBSubnetGroup": {
            "Type": "AWS::RDS::DBSubnetGroup",
            "Properties": {
                "DBSubnetGroupDescription": "Description of subnet group",
                "SubnetIds": [
                    "subnet-7b5b4112",
                    "subnet-7b5b4115"
                ],
                "Tags": [
                    {
                        "Key": "mykey",
                        "Value": "myvalue"
                    }
                ]
            }
        }
    }
}

YAML

--- 
AWSTemplateFormatVersion: "2010-09-09"
Resources: 
  myDBSubnetGroup: 
    Type: AWS::RDS::DBSubnetGroup
    Properties: 
      DBSubnetGroupDescription: Description of subnet group
      SubnetIds: 
        - subnet-7b5b4112
        - subnet-7b5b4115
      Tags: 
        - Key: mykey
          Value: myvalue