google_cloudbuild_trigger with count fails

[jackivanov]

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Terraform Version

Terraform v0.12.6
+ provider.google v2.16.0
+ provider.null v2.1.2
+ provider.random v2.2.0

Affected Resource(s)

• google_cloudbuild_trigger

Terraform Configuration Files

resource "google_cloudbuild_trigger" "devops" {
  count    = 5
  project  = google_project.main.id
  filename = "test.yaml"

  trigger_template {
    project_id  = google_project.main.id
    repo_name   = google_sourcerepo_repository.main[count.index].name
    branch_name = "master"
  }
}

Debug Output

Panic Output

Expected Behavior

Terraform creates 5 cloud build triggers

Actual Behavior

Terraform fails to create build triggers.

Error: Error creating Trigger: googleapi: Error 409: trigger (158XXX61352, trigger) already exists

  on modules/env/devops-cloudbuild.tf line 1, in resource "google_cloudbuild_trigger" "devops":
   1: resource "google_cloudbuild_trigger" "devops" {



Error: Error creating Trigger: googleapi: Error 409: trigger (158XXX61352, trigger) already exists

  on modules/env/devops-cloudbuild.tf line 1, in resource "google_cloudbuild_trigger" "devops":
   1: resource "google_cloudbuild_trigger" "devops" {



Error: Error creating Trigger: googleapi: Error 409: trigger (158XXX61352, trigger) already exists

  on modules/env/devops-cloudbuild.tf line 1, in resource "google_cloudbuild_trigger" "devops":
   1: resource "google_cloudbuild_trigger" "devops" {



Error: Error creating Trigger: googleapi: Error 409: trigger (158XXX61352, trigger) already exists

  on modules/env/devops-cloudbuild.tf line 1, in resource "google_cloudbuild_trigger" "devops":
   1: resource "google_cloudbuild_trigger" "devops" {

Steps to Reproduce

1. terraform apply

Important Factoids

References

This is more likely a race condition in google, but we would have to create a workaround. hashicorp/terraform#14258 may help to solve the issue

b/270752232

[nat-henderson]

It looks like you can't create more than one build trigger at a time. That would be an upstream bug, but we could work on a workaround, maybe using the locking mechanisms we have already.

[prabenzom]

This should be working now.. you just need to add something like

name = "devops-trigger-${count.index}"