Set mongodb_major_version with tenant

[MonicaMagoniCom]

Is there an existing issue for this?

• [X] I have searched the existing issues

Provider Version

1.21.4

Terraform Version

1.9.8

Terraform Edition

Terraform Open Source (OSS)

Current Behavior

I'm trying to create a MongoDB Atlas cluster with GCP and with M5 instances and I would like to specify the mongoDB version. But from terraform apply I get: mongoDBMajorVersion is read-only for tenant clusters

Terraform configuration to reproduce the issue

resource "mongodbatlas_advanced_cluster" "test" {
  project_id   = mongodbatlas_project.mongodb-project.id
  name         = var.project
  cluster_type = "REPLICASET"
  replication_specs {
    region_configs {
      electable_specs {
        instance_size = "M5"
        node_count    = 3
      }
      provider_name = "TENANT"
      backing_provider_name = "GCP"
      priority      = 7
      region_name   = "WESTERN_EUROPE"
    }
  }
  mongo_db_major_version = "6"
  backup_enabled = false
}

Steps To Reproduce

terraform apply

Logs

error creating advanced cluster:  POST: HTTP 400 Bad Request (Error code: "TENANT_ATTRIBUTE_READ_ONLY") Detail: The attribute mongoDBMajorVersion is read-only for tenant clusters and cannot be changed by the user. Reason: Bad Request. Params: [mongoDBMajorVersion]

Code of Conduct

• [X] I agree to follow this project's Code of Conduct

[github-actions[bot]]

Thanks for opening this issue! Please make sure you've followed our guidelines when opening the issue. In short, to help us reproduce the issue we need:

• Terraform configuration file used to reproduce the issue
• Terraform log files from the run where the issue occurred
• Terraform Atlas provider version used to reproduce the issue
• Terraform version used to reproduce the issue
• Confirmation if Terraform OSS, Terraform Cloud, or Terraform Enterprise deployment

The ticket CLOUDP-284605 was created for internal tracking.