ReadEndpoint.Address was not found for DBCluster - amazon-web-services

Question

I am adding route 53 to my DBCluster and keep running into the error: Attribute: ReadEndpoint.Address was not found for resource: <DBCluster-name>
The entire stack is created via cloudformation.
Also, it should be noted that this is for Serverless Aurora in case that matters?
Here is my code:
AWSTemplateFormatVersion: 2010-09-09
Description: RDS Aurora serverless template
Parameters:
CustomFunctionArn:
Default: arn:aws:lambda:us-west-2:123456789:function:vault-secrets-read-lambda-prod
Description: The ARN of the lambda function to retrieve password from Vault
Type: String
DBName:
AllowedPattern: '[a-zA-Z][a-zA-Z0-9]*'
Description: Name of the database
Type: String
DBMasterUsername:
AllowedPattern: '[a-zA-Z][a-zA-Z0-9]*'
Description: The master user name for the DB instance
Type: String
DBScalingAutoPauseEnabled:
AllowedValues:
- 'true'
- 'false'
Default: 'true'
Description: Pause all DB instances after some inactivity
Type: String
DBScalingMaxCapacity:
AllowedValues:
- 2
- 4
- 8
- 16
- 32
- 64
- 192
- 384
Default: 8
Description: The maximum capacity for an Aurora DB cluster in serverless DB engine mode
Type: Number
DBScalingMinCapacity:
AllowedValues:
- 2
- 4
- 8
- 16
- 32
- 64
- 192
- 384
Default: 2
Description: The minimum capacity for an Aurora DB cluster in serverless DB engine mode
Type: Number
DBScalingSecondsUntilAutoPause:
Default: 300
Description: Auto pause after consecutive seconds of inactivity
MinValue: 300
MaxValue: 86400
Type: Number
Env:
AllowedValues:
- prod
- qa
- dev
Type: String
Description: Environment
VaultPath:
Default: secret/dev/dbPassword
Type: String
SnapshotId:
Description: snapshot ID to restore DB cluster from
Type: String
Conditions:
EnableAutoPause:
!Equals [!Ref DBScalingAutoPauseEnabled, 'true']
DoNotUseSnapshot: !Equals
- !Ref SnapshotId
- ''
Mappings:
Configuration:
prod:
HostedZoneEnv: mydomain.com
HostedZoneId: 'XXX'
SecurityGroup: sg-123321
SubnetGroups:
- subnet-123
- subnet-456
- subnet-789
VPCId: vpc-555
Tags:
- Key: Name
Value: my-db
- Key: environment
Value: prod
- Key: component
Value: rds-aurora
- Key: classification
Value: internal
qa:
HostedZoneEnv: mydomain-qa.com
HostedZoneId: 'XXX'
SecurityGroup: sg-321123
SubnetGroups:
- subnet-098
- subnet-765
- subnet-432
VPCId: vpc-345543
Tags:
- Key: Name
Value: my-db
- Key: environment
Value: qa
- Key: component
Value: rds-aurora
- Key: classification
Value: internal
dev:
HostedZoneEnv: mydomain-dev.com
HostedZoneId: 'XXX'
SecurityGroup: sg-f3453f
SubnetGroups:
- subnet-dsf24327
- subnet-82542gsda
- subnet-casaf2344
VPCId: vpc-23dfsf
Tags:
- Key: Name
Value: my-db
- Key: environment
Value: dev
- Key: component
Value: rds-aurora
- Key: classification
Value: internal
Resources:
AuroraSG:
Type: AWS::EC2::SecurityGroup
Properties:
GroupDescription: Allows access to RDS
GroupName: !Sub '${AWS::StackName}-aurora-rds-${Env}'
SecurityGroupIngress:
- IpProtocol: -1
CidrIp: 0.0.0.0/0
FromPort: 5432
ToPort: 5432
Tags: !FindInMap [Configuration, !Ref Env, Tags]
VpcId: !FindInMap [Configuration, !Ref Env, VPCId]
GetValuefromVault:
Type: Custom::CustomResource
Properties:
ServiceToken: !Ref CustomFunctionArn
VaultKeyPath: !Ref VaultPath
DBCluster:
Type: 'AWS::RDS::DBCluster'
DeletionPolicy: Snapshot
UpdateReplacePolicy: Snapshot
Properties:
BackupRetentionPeriod: 7
DBClusterParameterGroupName: default.aurora-postgresql10
DBSubnetGroupName: !Ref DBSubnetGroup
DatabaseName: !Ref DBName
DeletionProtection: false
# EnableHttpEndpoint: true
Engine: aurora-postgresql
EngineMode: serverless
EngineVersion: '10.7'
KmsKeyId: !If [DoNotUseSnapshot, !Ref KMSkey, !Ref 'AWS::NoValue']
MasterUserPassword: !If [DoNotUseSnapshot, !GetAtt 'GetValuefromVault.ValueFromVault', !Ref 'AWS::NoValue']
MasterUsername: !If [DoNotUseSnapshot, !Ref DBMasterUsername, !Ref 'AWS::NoValue']
Port: 5432
ScalingConfiguration:
AutoPause: !If [EnableAutoPause, true, false]
MaxCapacity: !Ref DBScalingMaxCapacity
MinCapacity: !Ref DBScalingMinCapacity
SecondsUntilAutoPause: !Ref DBScalingSecondsUntilAutoPause
SnapshotIdentifier: !If [DoNotUseSnapshot, !Ref 'AWS::NoValue', !Ref SnapshotId]
StorageEncrypted: true
Tags: !FindInMap [Configuration, !Ref Env, Tags]
VpcSecurityGroupIds:
- !GetAtt [AuroraSG, GroupId]
- !FindInMap [Configuration, !Ref Env, SecurityGroup]
DBSubnetGroup:
Type: 'AWS::RDS::DBSubnetGroup'
Properties:
DBSubnetGroupDescription: !Sub '${AWS::StackName}-${Env}'
SubnetIds: !FindInMap [Configuration, !Ref Env, SubnetGroups]
Tags: !FindInMap [Configuration, !Ref Env, Tags]
KmsAlias:
Type: AWS::KMS::Alias
Properties:
AliasName: !Sub 'alias/${AWS::StackName}-${Env}-aurora-rds'
TargetKeyId: !Ref KMSkey
KMSkey:
Type: AWS::KMS::Key
Properties:
KeyPolicy:
Id: key-consolepolicy-3
Version: 2012-10-17
Statement:
- Sid: Enable IAM User Permissions
Effect: Allow
Principal:
AWS: !Sub arn:aws:iam::${AWS::AccountId}:root
Action: 'kms:*'
Resource: '*'
RecordSet:
Type: AWS::Route53::RecordSet
DependsOn: DBCluster
Properties:
HostedZoneId: !FindInMap [Configuration, !Ref Env, HostedZoneId]
Name: !Join ['', [!Ref DBName, -writer-db, ., !FindInMap [Configuration, !Ref Env, HostedZoneEnv], .]]
ResourceRecords:
- !GetAtt DBCluster.Endpoint.Address
TTL: '60'
Type: CNAME
ReadRecordSet:
Type: 'AWS::Route53::RecordSet'
DependsOn:
- DBCluster
Properties:
HostedZoneId: !FindInMap [Configuration, !Ref Env, HostedZoneId]
Name: !Join ['', [!Ref DBName, -reader-db, ., !FindInMap [Configuration, !Ref Env, HostedZoneEnv], .]]
ResourceRecords:
- !GetAtt DBCluster.ReadEndpoint.Address
TTL: '60'
Type: CNAME
Outputs:
AuroraHost:
Value: !GetAtt [DBCluster, Endpoint.Address]
Export:
Name: !Join [":", [ !Ref "AWS::StackName", 'Host' ]]
AuroraSG:
Value: !GetAtt AuroraSG.GroupId
Export:
Name: !Join [":", [ !Ref "AWS::StackName", AuroraSG ]]
KMS:
Value: !GetAtt [KMSkey, Arn]
Export:
Name: !Join [":", [ !Ref "AWS::StackName", 'KMS' ]]
DNSName:
Description: 'The connection endpoint for the DB cluster.'
Value: !GetAtt 'DBCluster.Endpoint.Address'
Export:
Name: !Sub '${AWS::StackName}-DNSName'
ReadDNSName:
Description: 'The reader endpoint for the DB cluster.'
Value: !GetAtt 'DBCluster.ReadEndpoint.Address'
Export:
Name: !Sub '${AWS::StackName}-ReadDNSName'
Some things i have tried:
Create new stack: FAIL
Create new stack without ReadRecordSet: FAIL
Create new stack without RecordSet (old name for read recordset): FAIL
Create new stack without RecordSet (new name for read recordset): FAIL
Add a DependsOn to ReadRecordSet (for first RecordSet): FAIL
Enabling HTTP endpoint on Cluster: FAIL
Update TTL to 60: FAIL Update TTL to 0: FAIL
The RecordSet seems to be creating okay (I tested that by adding a DependsOn: - RecordSet in the ReadRecordSet to allow RecordSet to create first), so it's the ReadRecordSet that is failing and can't find ReadEndpoint.Address
Not sure what I am missing here, been googling like mad and don't see much about this error. Any help is appreciated!

Answer 1

It turns out that Aurora Serverless doesn't require ReadRecordSet, so that entire section is only applicable to provisioned DB, so ReadEndpoint doesn't exist indeed. Unfortunately AWS documentation doesn't mention that explicitly.