AWS ECS service_connect_configuration fails to create DNS record

Terraform Providers AWS
1

It seems that the ECS Service connect configuration only creates HTTP/API cloudmap services, even though the terraform code lists the dns_alias. e.g.

- Installing hashicorp/aws v4.49.0

resource "aws_service_discovery_private_dns_namespace" "this" {
  name        = "this"
  vpc         = aws_vpn.this.id
}
resource "aws_ecs_service" "service" {
  name                   = "service"
  cluster                = module.ecs.cluster_id
  desired_count          = 1
  launch_type            = "FARGATE"
  service_connect_configuration {
    enabled   = "true"
    namespace = aws_service_discovery_private_dns_namespace.this.arn
    service {
      discovery_name = "service"
      port_name      = "http"
      client_alias   = "service"
      client_alias {
        dns_name = "service"
        port     = "8080"
      }
    }
  }

Creates this service with NO DNS config and TYPE: HTTP rather than DNS_HTTP

Services:
- Arn: arn:aws:servicediscovery:us-east-1:111111111:service/srv-222222222
  CreateDate: '2023-01-20T14:12:48.323000-06:00'
  Description: Managed by arn:aws:ecs:us-east-1:1111111:service/cluster/service
  DnsConfig: {}
  Id: srv-11111111
  Name: service
  Type: HTTP

In a manually created cloudmap service, it looks like this:

- Arn: arn:aws:servicediscovery:us-east-1:111111111:service/srv-22222222
  CreateDate: '2023-01-20T14:58:23.713000-06:00'
  DnsConfig:
    DnsRecords:
    - TTL: 300
      Type: A
    RoutingPolicy: WEIGHTED
  Id: srv-3333
  Name: manual
  Type: DNS_HTTP
2

Hi @glitchcowboy !
This still seems to be a problem in hashicorp/aws v5.57.0 too, have you opened an issue for it ? (I did a bit of searching but in 3k issues…)

3

For anyone else looking … it might be the desired behaviour and not a bug.
In the docs for service_connect_configuration it says

    namespace - (Optional) Namespace name or ARN of the aws_service_discovery_http_namespace for use with Service Connect.

Which suggests only that is available.