feat: Add support for configuring Query Insights on Postgres instances (#198)

* Support Query Insights

* Create insights_config when enabled only

* Set default as null

* Simplify logic

* Update

* Update modules/postgresql/variables.tf

* Regenerate doc

Co-authored-by: Morgante Pell <[email protected]>

Author: dhoeric

modules/postgresql/README.md

@@ -26,6 +26,7 @@ Note: CloudSQL provides [disk autoresize](https://cloud.google.com/sql/docs/mysq
 | enable\_default\_db | Enable or disable the creation of the default database | bool | `"true"` | no |
 | enable\_default\_user | Enable or disable the creation of the default user | bool | `"true"` | no |
 | encryption\_key\_name | The full path to the encryption key used for the CMEK disk encryption | string | `"null"` | no |
+| insights\_config | The insights_config settings for the database. | object | `"null"` | no |
 | ip\_configuration | The ip configuration for the master instances. | object | `<map>` | no |
 | maintenance\_window\_day | The day of week (1-7) for the master instance maintenance. | number | `"1"` | no |
 | maintenance\_window\_hour | The hour of day (0-23) maintenance window for the master instance maintenance. | number | `"23"` | no |

modules/postgresql/main.tf

@@ -75,6 +75,16 @@ resource "google_sql_database_instance" "default" {
         }
       }
     }
+    dynamic "insights_config" {
+      for_each = var.insights_config != null ? [var.insights_config] : []
+
+      content {
+        query_insights_enabled  = true
+        query_string_length     = lookup(insights_config.value, "query_string_length", 1024)
+        record_application_tags = lookup(insights_config.value, "record_application_tags", false)
+        record_client_address   = lookup(insights_config.value, "record_client_address", false)
+      }
+    }
 
     disk_autoresize = var.disk_autoresize
     disk_size       = var.disk_size

modules/postgresql/variables.tf

@@ -138,6 +138,16 @@ variable "backup_configuration" {
   }
 }
 
+variable "insights_config" {
+  description = "The insights_config settings for the database."
+  type = object({
+    query_string_length     = number
+    record_application_tags = bool
+    record_client_address   = bool
+  })
+  default = null
+}
+
 variable "ip_configuration" {
   description = "The ip configuration for the master instances."
   type = object({