ECS service cloud map does not honor specified DNS TTL

[fknittel]

The following Java synthesizes to a CloudFormation template where the DNS TTL is back to the default of 60 seconds instead of the specified 10 seconds:

software.amazon.awscdk.services.ecs.Ec2Service.Builder.create(scope, "ec2-service")
    .cloudMapOptions(software.amazon.awscdk.services.ecs.CloudMapOptions.builder()
        .dnsTtl(Duration.seconds(10))
        .build())
    .build();

Reproduction Steps

1. Define above ECS service using CDK
2. Look at synth result

Environment

• Framework Version: CDK 1.23.0
• Language : Java

Other

Looks like this line

aws-cdk/packages/@aws-cdk/aws-ecs/lib/base/base-service.ts

Lines 513 to 518 in d51350b

	const cloudmapService = new cloudmap.Service(this, 'CloudmapService', {
	namespace: sdNamespace,
	name: options.name,
	dnsRecordType: dnsRecordType!,
	customHealthCheck: { failureThreshold: options.failureThreshold || 1 }
	});

should also pass along the options.dnsTtl:

const cloudmapService = new cloudmap.Service(this, 'CloudmapService', {
      namespace: sdNamespace,
      name: options.name,
      dnsRecordType: dnsRecordType!,
      customHealthCheck: { failureThreshold: options.failureThreshold || 1 },
      dnsTtl: options.dnsTtl
    });

---

This is 🐛 Bug Report