Merge pull request #65 from schubergphilis/bug-coalesce

fix: solve issue with using coalesce on null values

main.tf

@@ -244,11 +244,11 @@ module "additional_tfe_workspaces" {
   description                    = each.value.description
   execution_mode                 = coalesce(each.value.execution_mode, var.tfe_workspace.execution_mode)
   file_triggers_enabled          = each.value.connect_vcs_repo != false ? each.value.file_triggers_enabled : null
-  github_app_installation_id     = each.value.connect_vcs_repo != false ? coalesce(each.value.vcs_github_app_installation_id, var.tfe_workspace.vcs_github_app_installation_id) : null
+  github_app_installation_id     = each.value.connect_vcs_repo != false ? try(coalesce(each.value.vcs_github_app_installation_id, var.tfe_workspace.vcs_github_app_installation_id), null) : null
   global_remote_state            = each.value.global_remote_state
   name                           = coalesce(each.value.name, each.key)
   notification_configuration     = each.value.notification_configuration != null ? each.value.notification_configuration : var.tfe_workspace.notification_configuration
-  oauth_token_id                 = each.value.connect_vcs_repo != false ? coalesce(each.value.vcs_oauth_token_id, var.tfe_workspace.vcs_oauth_token_id) : null
+  oauth_token_id                 = each.value.connect_vcs_repo != false ? try(coalesce(each.value.vcs_oauth_token_id, var.tfe_workspace.vcs_oauth_token_id), null) : null
   oidc_settings                  = coalesce(each.value.auth_method, var.tfe_workspace.auth_method) == "iam_role_oidc" ? { provider_arn = aws_iam_openid_connect_provider.tfc_provider[0].arn } : null
   path                           = var.path
   permissions_boundary_arn       = each.value.add_permissions_boundary == true ? aws_iam_policy.workspace_boundary[0].arn : null