Unable to create rds global database in aws using Terraform

[ghost]

This issue was originally opened by @jitenroy01 as hashicorp/terraform#19905. It was migrated here as a result of the provider split. The original body of the issue is below.

---

Terraform Version

Terraform v0.11.11

Terraform Configuration Files

resource "aws_rds_global_cluster" "rdsglobal" {
  provider                  = "aws.primary"

  global_cluster_identifier = "${var.global_database_id}"
  storage_encrypted         = "${var.storage_encrypted}"
}

resource "aws_rds_cluster_instance" "primary" {
  provider                  = "aws.primary"
  count                     = "${var.instance_count}"
  identifier                = "${var.db_name}-${count.index+1}"
  cluster_identifier        = "${aws_rds_cluster.primary.id}"
  instance_class            = "${var.instance_class}"
  engine                    = "${var.engine}"
  engine_version            = "${var.engine_version}"
  publicly_accessible       = "${var.publicly_accessible}"

}

resource "aws_rds_cluster" "primary" {
  provider                  = "aws.primary"
  cluster_identifier        = "${var.primary_cluster_id}"
  database_name             = "${var.db_name}"
  port                      = "${var.port}"
  engine                    = "${var.engine}"
  engine_version            = "${var.engine_version}"
  master_username           = "${var.master_username}"
  master_password           = "${random_string.password.result}"
  vpc_security_group_ids    = ["${var.security_group_ids}"] 
  db_subnet_group_name      = "${var.db_subnet_group_name}" 
  storage_encrypted         = "${var.storage_encrypted}"
  backup_retention_period   = "${var.backup_retention_period}"
  skip_final_snapshot       = "${var.skip_final_snapshot}"
  engine_mode               = "${var.engine_mode}"
  global_cluster_identifier = "${aws_rds_global_cluster.rdsglobal.id}"

}


resource "aws_rds_cluster_instance" "secondary" {
  provider                  = "aws.secondary"
  count                     = "${var.instance_count}"
  identifier                = "${var.db_name}-${count.index+1}"
  cluster_identifier        = "${aws_rds_cluster.secondary.id}"
  instance_class            = "${var.instance_class}"
  engine                    = "${var.engine}"
  engine_version            = "${var.engine_version}"
  publicly_accessible       = "${var.publicly_accessible}"

}

resource "aws_rds_cluster" "secondary" {
  depends_on                = ["aws_rds_cluster_instance.primary"]
  provider                  = "aws.secondary"
  cluster_identifier        = "${var.secondary_cluster_id}"
  port                      = "${var.port}"
  engine                    = "${var.engine}"
  engine_version            = "${var.engine_version}"
  master_username           = "${var.master_username}"
  master_password           = "${random_string.password.result}"
  vpc_security_group_ids    = ["${var.secondary_security_group_ids}"] 
  db_subnet_group_name      = "${var.db_subnet_group_name}" 
  engine_mode               = "${var.engine_mode}"
  global_cluster_identifier = "${aws_rds_global_cluster.rdsglobal.id}"

}

Debug Output

Crash Output

Expected Behavior

A global database should be created with a primary cluster in one region and a secondary cluster in another region.

Actual Behavior

The primary cluster gets created but the secondary cluster fails with the following error-

* aws_rds_cluster.secondary: error creating RDS cluster: 
InvalidParameterCombination: Cannot specify user name for cross 
region replication cluster
status code: 400, request id: 10b82a78-898c-49e6-b28f- 
0a318fdc226f

I tried by removing master_username but I got the below error-

* aws_rds_cluster.secondary: provider.aws: aws_rds_cluster: : 
"master_username": required field is not set

I followed the steps from https://www.terraform.io/docs/providers/aws/r/rds_global_cluster.html

Steps to Reproduce

Additional Context

I was able to create the rds global database using aws cli as described in the link- https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-global-database.html#aurora-global-database-detaching

We are using terraform for all our provisioning. That's why I am trying to create a terraform module.

References

[araddas]

I am seeing this same issue as well.

[pratibhavijay]

We are also facing the same issue.

[bflad]

Hi folks 👋 sorry for the hassle. This likely requires some aws_rds_cluster resource changes to be fully supported like the new aws_global_rds_cluster resource documentation suggests. Please feel free to use 👍 upvote reactions on the original issue above to help prioritize this change.

[bculberson]

I fixed this in #7213

[araddas]

@bculberson Awesome!

[bflad]

The fix for this has been merged and will release with version 1.60.0 of the Terraform AWS Provider, very shortly.

[bflad]

This has been released in version 1.60.0 of the AWS provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

[typez]

I wonder if anybody got it ever working and how it had been tested before merge? I'm facing pretty same issue with the recent AWS provider version. Details are exactly the same as in issue linked.

[diprochatterjee]

I have the same issue with creating a rds global cluster. The rds global cluster gets created but when I try to create an rds cluster as the primary cluster for the global cluster, it fails with error - * aws_rds_cluster.primary: error creating RDS cluster: InvalidParameterValue: The engine mode global you requested is currently unavailable. I am using Terraform version 0.11.11

[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 feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!