Add aetherfabric playbook, group_vars and example manual inventory

Change-Id: I62aa0d702b1498c0de52e33d44b9e5a070b73d6f
diff --git a/inventory/example-aether.ini b/inventory/example-aether.ini
new file mode 100644
index 0000000..38f40cf
--- /dev/null
+++ b/inventory/example-aether.ini
@@ -0,0 +1,31 @@
+# examle inventory file for manual provisioning of aether systems
+[aethermgmt]
+mgmtserver1.role1.site ansible_host=<mgmt server ip>
+
+[aethermgmt:vars]
+ansible_user="onfadmin"
+ansible_become_password="<onfadmin password>"
+ansible_python_interpreter=/usr/bin/python3
+
+[aethercompute]
+node1.role1.site ansible_host=10.0.0.138
+node2.role1.site ansible_host=10.0.0.139
+node3.role1.site ansible_host=10.0.0.140
+
+[aethercompute:vars]
+ansible_ssh_common_args='-o ProxyCommand="ssh -W %h:%p -q onfadmin@<mgmt server ip>"'
+ansible_user="onfadmin"
+ansible_become_password="<onfadmin password>"
+ansible_python_interpreter=/usr/bin/python3
+
+[aetherfabric]
+spine1.role1.site ansible_host=10.0.0.130
+spine2.role1.site ansible_host=10.0.0.132
+leaf1.role1.site ansible_host=10.0.0.134
+leaf2.role1.site ansible_host=10.0.0.136
+
+[aetherfabric:vars]
+ansible_ssh_common_args='-o ProxyCommand="ssh -W %h:%p -q onfadmin@<mgmt server ip>"'
+ansible_user="root"
+ansible_ssh_pass="onl"
+ansible_python_interpreter=/usr/bin/python3