Dialogflow CX - Cycle Issue | not fixed

[josueelias9]

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Terraform Version & Provider Version(s)

Terraform v1.12.1
on linux_amd64

Affected Resource(s)

• google_dialogflow_cx_agent
• google_dialogflow_cx_flow
• google_dialogflow_cx_page

Terraform Configuration

resource "random_pet" "test" {}

resource "google_dialogflow_cx_agent" "test" {
  default_language_code = "de"
  display_name          = "Bot-${random_pet.test.id}"
  location              = "global"
  time_zone             = "Europe/Berlin"
  supported_language_codes = ["en"]
}

resource "google_dialogflow_cx_flow" "startFlow" {
  parent = google_dialogflow_cx_agent.test.id
  display_name = "Start"

  transition_routes {
    intent = "${google_dialogflow_cx_agent.crewBot.id}/intents/00000000-0000-0000-0000-000000000000"
    target_page = google_dialogflow_cx_page.test.id
  }
}

resource "google_dialogflow_cx_page" "test" {
  parent = google_dialogflow_cx_flow.startFlow.id
  display_name = "Test"
}

Debug Output

Cycle issue because google_dialogflow_cx_page is using as parent the flow resource and the flow resource should add a transition_routes to the page.

Expected Behavior

Connect the resources without any problem.

Actual Behavior

How did you solve this problem? Unfortunately, there is no possibility to add a transition route to the flow resource afterwards. So you have to add a route to the flow resource as soon as you define it.

For me it seems as if the service cannot be completely mapped using Terraform.

Steps to reproduce

1. terraform apply

Important Factoids

No response

References

#12022

b/436661214

[melinath]

A workaround here would be to do a multi-stage apply. Possibly you might also need to hardcode the value for target_page instead of using a reference.

The solution to this kind of cycle is to make a separate google_dialogflow_cx_flow_transition_route resource (or similar) which can manage just that aspect of the resource - this turns the cycle into a DAG. These kinds of resources are called "fine-grained resources".