feat: Add dataset_create flag to skip creation if already exists

modules/slo-pipeline/README.md

@@ -43,6 +43,7 @@ See the [fixture project](../../test/setup/main.tf) for an example to create thi
 
 | Name | Description | Type | Default | Required |
 |------|-------------|:----:|:-----:|:-----:|
+| dataset\_create | Whether to create the BigQuery dataset | bool | `"true"` | no |
 | dataset\_default\_table\_expiration\_ms | The default lifetime of the slo table in the dataset, in milliseconds. Default is never (Recommended) | number | `"-1"` | no |
 | exporters | SLO export destinations config | list(any) | n/a | yes |
 | function\_bucket\_name | Name of the bucket to create to store the Cloud Function code | string | `"slo-pipeline"` | no |

modules/slo-pipeline/main.tf

@@ -46,7 +46,7 @@ resource "local_file" "exporters" {
 }
 
 resource "google_bigquery_dataset" "main" {
-  count                       = length(local.bigquery_configs)
+  count                       = var.dataset_create == false ? 0 : length(local.bigquery_configs)
   project                     = local.bigquery_configs[count.index].project_id
   dataset_id                  = local.bigquery_configs[count.index].dataset_id
   delete_contents_on_destroy  = lookup(local.bigquery_configs[count.index], "delete_contents_on_destroy", false)

modules/slo-pipeline/variables.tf

@@ -100,6 +100,12 @@ variable "dataset_default_table_expiration_ms" {
   default     = -1 # no expiration
 }
 
+variable "dataset_create" {
+  type        = bool
+  description = "Whether to create the BigQuery dataset"
+  default     = true
+}
+
 variable "slo_generator_version" {
   description = "SLO generator library version"
   default     = "1.1.2"