add half done self managed version

self-managed/k3s-servers.tf

@@ -0,0 +1,37 @@
+resource "oci_core_instance_pool" "k3s_servers" {
+  depends_on = [
+    oci_identity_dynamic_group.compute_dynamic_group,
+    oci_identity_policy.compute_dynamic_group_policy
+  ]
+
+  timeouts {
+    create = "11m"
+    update = "11m"
+    delete = "10m"
+  }
+
+  lifecycle {
+    create_before_destroy = true
+    ignore_changes        = [load_balancers, freeform_tags, instance_configuration_id]
+  }
+
+  display_name              = "k3s-servers"
+  compartment_id            = var.compartment_ocid
+  instance_configuration_id = oci_core_instance_configuration.k3s_server_template.id
+
+  placement_configurations {
+    availability_domain = var.availability_domain
+    primary_subnet_id   = oci_core_subnet.default_oci_core_subnet10.id
+    fault_domains       = var.fault_domains
+  }
+
+  size = var.k3s_server_pool_size
+
+  freeform_tags = {
+    "provisioner"           = "terraform"
+    "environment"           = "${var.environment}"
+    "${var.unique_tag_key}" = "${var.unique_tag_value}"
+    "k3s-cluster-name"      = "${var.cluster_name}"
+    "k3s-instance-type"     = "k3s-server"
+  }
+}