diff --git a/aether-playbook/inventory/template/inventory.ini b/aether-playbook/inventory/template/inventory.ini
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+# Copyright 2020-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# List of all nodes
+# example)
+# menlo-edge ansible_host=10.92.1.50
+#SET_VALUE
+
+# Specify a node to run k8s control plane and etcd
+# Note that the number of the nodes must be odd
+[kube-master]
+#SET_VALUE
+
+# Specify k8s worker nodes
+[kube-worker]
+#SET_VALUE
+
+# Specify a node to run UPF(SPGWU)
+# Make sure the node has SRIOV supported NIC
+[upf]
+#SET_VALUE
+
+# Specify a router that will serve SGI/S1U network gateways and the Internet connectivity to UE
+[router]
+#SET_VALUE (optional)
+
+#[accelleran]