AWS CDK. Aurora + fargate service - aws-cdk

Question

I am trying to create a Fargate Service that connects to an Aurora Postgres DB through the CDK, but I am unable. I get an error connection. This should be pretty straightforward though. Does anybody have any resources?
export class myStack extends cdk.Stack {
constructor(scope: Construct, id: string, props?: cdk.StackProps) {
super(scope, id, props);
const DATABASE_NAME = "myDatabase";
const vpc = new ec2.Vpc(this, "myVpc");
const cluster = new ecs.Cluster(this, "myCluster", {
vpc: vpc
});
const databaseAdminSecret = new Secret(this, 'myCredentialsSecret', {
secretName: 'database-secret',
description: 'Database auto-generated user password',
generateSecretString: {
secretStringTemplate: JSON.stringify({username: 'boss'}),
generateStringKey: 'password',
passwordLength: 30,
excludeCharacters: "\"#/\\",
excludePunctuation: true,
}
});
const database = new rds.DatabaseCluster(this, 'myDatabase', {
engine: rds.DatabaseClusterEngine.auroraPostgres({
version: rds.AuroraPostgresEngineVersion.VER_14_5
}),
credentials: rds.Credentials.fromSecret(databaseAdminSecret),
instanceProps: {
vpc,
},
defaultDatabaseName: DATABASE_NAME,
port: 5432,
});
// Create a load-balanced Fargate service and make it public
const service = new ecs_patterns.ApplicationLoadBalancedFargateService(this, "myService", {
cluster: cluster, // Required
taskImageOptions: {
image: ecs.ContainerImage.fromRegistry('my-custom-image'),
environment: {
DB_URL: `jdbc:postgresql://${database.clusterEndpoint.socketAddress}/${DATABASE_NAME}`,
DB_USERNAME: databaseAdminSecret.secretValueFromJson('username').unsafeUnwrap().toString(),
DB_PASSWORD: databaseAdminSecret.secretValueFromJson('password').unsafeUnwrap().toString(),
},
},
});
// Allow the service to connect to the database
database.connections.allowDefaultPortFrom(service.service);
}
}
When I spin up this stack with cdk deploy my Fargate service ends up dying because "Connection was refused".
What am I doing wrong?
Thanks,