Add oke and nlb to managed cluster

oci-managed/oke/node_pool.tf

@@ -0,0 +1,34 @@
+resource "oci_containerengine_node_pool" "k8s_node_pool" {
+  cluster_id         = oci_containerengine_cluster.k8s_cluster.id
+  compartment_id     = var.compartment_ocid
+  kubernetes_version = var.kubernetes_version
+  name               = "${var.cluster_name}-${var.environment}-arm-node-pool"
+  node_config_details {
+    dynamic "placement_configs" {
+      for_each = var.node_availability_domains
+      content {
+        availability_domain = placement_configs.value
+        subnet_id           = var.vcn_private_subnet_id
+      }
+    }
+    size = var.node_pool_size
+  }
+  node_shape = "VM.Standard.A1.Flex"
+
+  node_shape_config {
+    memory_in_gbs = 12
+    ocpus         = 2
+  }
+
+  node_source_details {
+    image_id    = data.oci_core_images.latest_image.images.0.id
+    source_type = "image"
+  }
+
+  initial_node_labels {
+    key   = "name"
+    value = "${var.cluster_name}-${var.environment}-cluster"
+  }
+
+  ssh_public_key = file(var.ssh_public_key)
+}