feat: Ability to customize block volume for instance-pool

Added the ability to customize block volume creation when worker pool mode is instance-pool

Signed-off-by: Deepak Devadathan <[email protected]>

Author: ddevadat

examples/workers/vars-workers-instancepool.auto.tfvars

@@ -19,5 +19,18 @@ worker_pools = {
     mode        = "instance-pool",
     size        = 1,
     burst       = "BASELINE_1_8",   # Valid values BASELINE_1_8,BASELINE_1_2
-  }
+  },
+  oke-vm-instance-pool-with-block-volume = {
+    description = "Self-managed Instance Pool with block volume",
+    mode        = "instance-pool",
+    size        = 1,
+    disable_block_volume = false,
+    block_volume_size_in_gbs = 60,
+  },
+  oke-vm-instance-pool-without-block-volume = {
+    description = "Self-managed Instance Pool without block volume",
+    mode        = "instance-pool",
+    size        = 1,
+    disable_block_volume = true,
+  },
 }

modules/workers/instanceconfig.tf

@@ -117,18 +117,22 @@ resource "oci_core_instance_configuration" "workers" {
       is_pv_encryption_in_transit_enabled = each.value.pv_transit_encryption
     }
 
-    block_volumes {
-      attach_details {
-        type                                = each.value.block_volume_type
-        is_pv_encryption_in_transit_enabled = each.value.pv_transit_encryption
-      }
+    dynamic "block_volumes" {
+      for_each = (lookup(each.value, "disable_block_volume", false) != true) ? [1] : []
+      content {
+        attach_details {
+          type                                = each.value.block_volume_type
+          is_pv_encryption_in_transit_enabled = each.value.pv_transit_encryption
+        }
 
-      create_details {
-        // Limit to first candidate placement AD for cluster-network; undefined for all otherwise
-        availability_domain = each.value.mode == "cluster-network" ? element(each.value.availability_domains, 1) : null
-        compartment_id      = each.value.compartment_id
-        display_name        = each.key
-        kms_key_id          = each.value.volume_kms_key_id
+        create_details {
+          // Limit to first candidate placement AD for cluster-network; undefined for all otherwise
+          availability_domain = each.value.mode == "cluster-network" ? element(each.value.availability_domains, 1) : null
+          compartment_id      = each.value.compartment_id
+          display_name        = each.key
+          kms_key_id          = each.value.volume_kms_key_id
+          size_in_gbs         = max(50, lookup(each.value, "block_volume_size_in_gbs", 50))
+        }
       }
     }