AETHER-2697 Add playbook for configuring Aether servers offline

Change-Id: I6a1a338e6c8a4f867fc3221a94ddfa58e253485a
diff --git a/playbooks/aethercompute-airgap-playbook.yml b/playbooks/aethercompute-airgap-playbook.yml
new file mode 100644
index 0000000..d4653db
--- /dev/null
+++ b/playbooks/aethercompute-airgap-playbook.yml
@@ -0,0 +1,11 @@
+---
+# Ansible playbook to configure aether compute nodes offline
+
+- name: Configure aether compute nodes offline
+  hosts: aethercompute
+  become: true
+  roles:
+    - apt_source
+    - netprep
+    - sriov
+    - users