Set object locking conditionally

[miguelaferreira]

I'm not able to set object locking conditionally (ie. based on the value of a variable). When disabling object locking I set the input variable object_lock_configuration to an empty map {}. However that results in a type error.

Error: Inconsistent conditional result types

  on ../../main.tf line 79, in module "bucket":
  79:   object_lock_configuration = var.enable_object_locking ? {
  80:     object_lock_enabled = "Enabled"
  81:     rule                = {
  82:       default_retention = {
  83:         mode = var.object_retention_mode
  84:         days = 1
  85:       }
  86:     }
  87:   } : {}

The true and false result expressions must have consistent types. The given
expressions are object and object, respectively.

Similar issues have been reported upstream hashicorp/terraform#22405

[miguelaferreira]

Further investigation points to this issue only being present with heterogeneous objects, that is, objects that have fields with different types. I've identified two input variables where this issue arises: cors_rule and object_lock_configuration.

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[github-actions]

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