No more than 1 "service_registries" blocks are allowed

[ronniekk]

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Affected Resource(s)

• aws_ecs_service

Terraform Configuration Files

resource "aws_ecs_service" "my-service" {
  name            = "my-service"
  cluster         = "${aws_ecs_cluster.main.id}"
  task_definition = "${aws_ecs_task_definition.my-service.arn}"
  desired_count   = "${var.app_count}"
  launch_type     = "FARGATE"

  network_configuration {
    security_groups  = [
      "${aws_security_group.my-service.id}"
    ]
    subnets          = data.aws_subnet_ids.private.ids
    assign_public_ip = false
  }

  service_registries {
    registry_arn = "${aws_service_discovery_service.my-service-thrift.arn}"
    port         = var.thrift_port
  }

  service_registries {
    registry_arn = "${aws_service_discovery_service.my-service-http.arn}"
    port         = var.http_port
  }
}

Expected Behavior

Multiple service_registries are used with single service.

Actual Behavior

Error: Too many service_registries blocks

  on  line 0:
  (source code not available)

No more than 1 "service_registries" blocks are allowed

Provider schema is capped at max one items: https://github.com/terraform-providers/terraform-provider-aws/blob/master/aws/resource_aws_ecs_service.go#L304

Steps to Reproduce

1. Add more than one service_registries within an aws_ecs_service resource.
2. terraform apply

References

Array of ServiceRegistry objects is supported in AWS API: https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_Service.html#ECS-Type-Service-serviceRegistries

Go API supports array of ServiceRegistry: https://docs.aws.amazon.com/sdk-for-go/api/service/ecs/#CreateServiceInput.SetServiceRegistries

[codebider]

Any update on this one?

[saschathiergart]

Any update yet on this one?

[arkadijs]

I suppose this is the unfortunate answer:

Each service may be associated with one service registry. Multiple service registries for each service isn't supported.

[marcinatvic]

So it seems AWS doesn't support multiple service registries for a service even though they have this parameter in their API as an array type. If that's the case then it won't be possible to fix that in the terraform provider.

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