google_api_gateway_test/terraform/gateway.tf

resource "random_uuid" "jwt_client_id" {
}

resource "google_api_gateway_api" "api" {
  provider   = google-beta
  project    = google_project.project.project_id
  api_id     = "the-gateway"
  depends_on = [google_project_service.service["apigateway"], ]
}

resource "google_api_gateway_api_config" "api_config" {
  provider      = google-beta
  project       = google_project.project.project_id
  api           = google_api_gateway_api.api.api_id
  api_config_id = "api-config"

  openapi_documents {
    document {
      path     = "spec.yaml"
      contents = base64encode(templatefile("openapi_spec.yaml", { backend_url = google_cloud_run_v2_service.api_server.uri, client_id = random_uuid.jwt_client_id.result }))
    }
  }
}

resource "google_api_gateway_gateway" "gateway" {
  provider   = google-beta
  project    = google_project.project.project_id
  api_config = google_api_gateway_api_config.api_config.id
  gateway_id = "gateway-to-the-api"
  # Delete this when api_config changes, otherwise if api_config needs to be replaced, it errors out because it is "in use" by this gateway. I wish this could be triggered only when api_config is being replaced instead of all edits.
  lifecycle {
    replace_triggered_by = [
      google_api_gateway_api_config.api_config
    ]
  }

}


output "gateway_address" {
  value = google_api_gateway_gateway.gateway.default_hostname
}

output "client_id" {
  value = random_uuid.jwt_client_id.result
}