Merge branch 'resize_prometheus_disk' into 'master'

Resizing prometheus-app data disk

See merge request !682

shared/gstg-gprd/main.tf

@@ -1215,7 +1215,7 @@ module "prometheus-app" {
   bootstrap_version     = "${var.bootstrap_script_version}"
   chef_provision        = "${var.chef_provision}"
   chef_run_list         = "\"role[${var.environment}-infra-prometheus-app]\""
-  data_disk_size        = 1000
+  data_disk_size        = 2000
   data_disk_type        = "pd-standard"
   dns_zone_name         = "${var.dns_zone_name}"
   environment           = "${var.environment}"