chore: added workaround to basic example (#260)

Author: kierramarie

examples/basic/main.tf

@@ -24,6 +24,20 @@ module "postgresql_db" {
   access_tags       = var.access_tags
 }
 
+# On destroy, we are seeing that even though the replica has been returned as
+# destroyed by terraform, the leader instance destroy can fail with: "You
+# must delete all replicas before disabling the leader. Try again with valid
+# values or contact support if the issue persists."
+# The ICD team have recommended to wait for a period of time after the replica
+# destroy completes before attempting to destroy the leader instance, so hence
+# adding a time sleep here.
+
+resource "time_sleep" "wait_time" {
+  depends_on = [module.postgresql_db]
+
+  destroy_duration = "5m"
+}
+
 ##############################################################################
 # ICD postgresql read-only-replica
 ##############################################################################
@@ -40,4 +54,5 @@ module "read_only_replica_postgresql_db" {
   remote_leader_crn = module.postgresql_db.crn
   member_memory_mb  = 2304  # Must be an increment of 384 megabytes. The minimum size of a read-only replica is 2 GB RAM
   member_disk_mb    = 15360 # Must be an increment of 512 megabytes. The minimum size of a read-only replica is 15.36 GB of disk
+  depends_on        = [time_sleep.wait_time]
 }

examples/basic/version.tf

@@ -6,5 +6,10 @@ terraform {
       source  = "IBM-Cloud/ibm"
       version = "1.54.0"
     }
+
+    time = {
+      source  = "hashicorp/time"
+      version = "0.9.1"
+    }
   }
 }