troubleshooting.html.markdown

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mongodbatlas	Provider: MongoDB Atlas	docs-mongodbatlas-troubleshooting	The MongoDB Atlas provider is used to interact with the resources supported by MongoDB Atlas. The provider needs to be configured with the proper credentials before it can be used.

Troubleshooting

The following are some of the common issues/errors encountered when using Terraform Provider for MongoDB Atlas:

Issue: The order of element objects in a TypeList attribute randomly changes every time a user runs terraform plan:

Cause:

This issue occurs if the user tries to dynamically add objects to an attribute list (for example, by using dynamic). This is a known Terraform behavior, as dynamic can attempt to bring objects into the schema in any order.

This can be resolved by:

1. Defining a static list of objects in your resource as shown in the example below:

resource "mongodbatlas_advanced_cluster" "main" {
  name         = "advanced-cluster-1"
  project_id   = "64258fba5c9...e5e94617e"
  cluster_type = "REPLICASET"

  replication_specs {
    region_configs {
      electable_specs {
        instance_size = "M20"
        node_count    = 1
      }
      provider_name = "AWS"
      priority      = 7
      region_name   = "US_EAST_1"
    }

    region_configs {
      electable_specs {
        instance_size = "M20"
        node_count    = 1
      }
      provider_name = "AWS"
      priority      = 6
      region_name   = "EU_WEST_1"
    }
  }
}

2. Using a type = list() variable when using dynamic as shown in the example below:

variable "region_configs_list" {
  description = "List of region_configs"
  type = list(object({
    provider_name = string
    priority      = number
    region_name   = string
    electable_specs = list(object({
      instance_size = string
      node_count    = number
    }))
  }))
  default = [{
    provider_name = "AWS",
    priority      = 7,
    region_name   = "US_EAST_1",
    electable_specs = [{
      instance_size = "M20"
      node_count    = 1
    }]
    }
  ]
}