aws_ecs_service InvalidParameterException: Creation of service was not idempotent

[simoneroselli]

Terraform Version

v0.10.8

Hi,

terraform is failing on modify the "placement strategy" for ECS/Service resources. Since such value can only be set at Service creation time, the expected beahviour would be "destroy 1, add 1", like the terraform plan correctly reports. However on terraform apply it fails.

Fail Output

Error: Error applying plan:

1 error(s) occurred:

• module.<my_module>.aws_ecs_service.<my_resource_name>: 1 error(s) occurred:

• aws_ecs_service.main: InvalidParameterException: Creation of service was not idempotent.
  status code: 400, request id: xxxxxxxxxxxxxxxx "..."

Expected Behavior

destroy service, add service.

Actual Behavior

Failure of terraform without modification.

Steps to Reproduce

1. Define a ECS/service with a placement strategy and apply
2. Change the placement strategy values to something else
3. terraform plan
   Plan: 1 to add, 0 to change, 1 to destroy.
4. terraform apply
   InvalidParameterException: Creation of service was not idempotent

[hashibot]

This issue has been automatically migrated to hashicorp/terraform-provider-aws#2283 because it looks like an issue with that provider. If you believe this is not an issue with the provider, please reply to this issue and let us know.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.