Merge branch 'hypvervisorinventory' into 'master'

helper script added

See merge request !343

scripts/addHypervisorsToInventory.py

+#!/usr/bin/python3
+
+# The purpose of this script is to enrich every VM of an ansible inventory file
+# in json format with the available hypervisor mapping found in /projects/pMOSP/hypervisor/
+
+hypervisormapping = open('m3-latest', 'r')  # coming from /projects/pMOSP/hypervisor/m3-latest
+# for monarch see /projects/pMOSP/hypervisor/monarch-vm-hw-mapping-2020
+mapping = hypervisormapping.readlines() 
+mapping=mapping[3:-1]
+
+import json,socket,sys
+
+with open('m3inventory.json') as json_file: # this file was created via m3inventory > m3inventory.json
+    inv = json.load(json_file)
+
+for map in mapping:
+    vm=map.split('|')[2].strip()
+    hyp=map.split('|')[4].strip()
+    if vm not in inv['_meta']['hostvars'].keys():
+        sys.stderr.write("Not found in inventory: {}\n".format(vm))
+        continue
+    inv['_meta']['hostvars'][vm]['hypervisor_ip']=socket.gethostbyname(hyp+'-1g.erc.monash.edu')
+
+print( "#!/bin/bash\necho '"+json.dumps(inv,indent=4, sort_keys=True)+"'")