diff --git a/xos-apps/auto-scale/xos_auto_scaling_app.py b/xos-apps/auto-scale/xos_auto_scaling_app.py
new file mode 100644
index 0000000..7ab8fe8
--- /dev/null
+++ b/xos-apps/auto-scale/xos_auto_scaling_app.py
@@ -0,0 +1,287 @@
+import socket
+import requests
+import urllib2
+import json
+import msgpack
+import collections
+import time, thread, threading
+
+from flask import request, Request, jsonify
+from flask import Flask
+from flask import make_response
+app = Flask(__name__)
+
+projects_map = {}
+xos_tenant_info_map = {}
+xos_instances_info_map = {}
+
+UDP_IP = "0.0.0.0"
+UDP_PORT = 12346
+
+@app.route('/autoscaledata',methods=['GET'])
+def autoscaledata():
+    response = app.make_response(json.dumps(projects_map))
+    response.mimetype="application/json"
+    return response
+
+def acquire_xos_monitoring_channel():
+    url = "http://ctl:9999/xoslib/monitoringchannel/"
+    admin_auth=("padmin@vicci.org", "letmein")   # use your XOS username and password
+    monitoring_channels = requests.get(url, auth=admin_auth).json()
+    ceilometer_url = None
+    if not monitoring_channels:
+        print 'SRIKANTH: No monitoring channels for this user...'
+        return None
+    else:
+        monitoring_channel = monitoring_channels[0]
+    while not monitoring_channel['ceilometer_url']:
+         print 'SRIKANTH: Waiting for monitoring channel create'
+         sleep(0.5)
+         monitoring_channel = requests.get(url, auth=admin_auth).json()[0]
+    #TODO: Wait until URL is completely UP
+    while True:
+        print 'SRIKANTH: Waiting for ceilometer proxy URL %s is available' % monitoring_channel['ceilometer_url']
+        try:
+            response = urllib2.urlopen(monitoring_channel['ceilometer_url'],timeout=1)
+            break
+        except urllib2.HTTPError, e:
+            print 'SRIKANTH: HTTP error %s' % e.reason
+            break
+        except urllib2.URLError, e:
+            print 'SRIKANTH: URL error %(reason)s' % e.reason
+            pass
+    return monitoring_channel
+
+def print_samples():
+   print ""
+   print ""
+   for project in projects_map.keys():
+        print "service=%s slice=%s, alarm_state=%s" % (projects_map[project]['xos_tenant_info']['service'] if projects_map[project]['xos_tenant_info'] else None, projects_map[project]['xos_tenant_info']['slice'] if projects_map[project]['xos_tenant_info'] else project, projects_map[project]['alarm'])
+        for resource in projects_map[project]['resources'].keys():
+             print "resource=%s" % (projects_map[project]['resources'][resource]['xos_instance_info']['instance_name'] if projects_map[project]['resources'][resource]['xos_instance_info'] else resource)
+             for i in projects_map[project]['resources'][resource]['queue']:
+                  print "    time=%s val=%s" % ( i['timestamp'],i['counter_volume'])
+
+def periodic_print():
+     print_samples()
+     #Print every 1minute
+     threading.Timer(60, periodic_print).start()
+
+
+CPU_UPPER_THRESHOLD = 80 #80%
+CPU_LOWER_THRESHOLD = 30 #30%
+CPU_THRESHOLD_REPEAT = 3
+INITIAL_STATE = 'normal_config'
+SCALE_UP_EVALUATION = 'scale_up_eval'
+SCALE_DOWN_EVALUATION = 'scale_down_eval'
+SCALE_UP_ALARM = 'scale_up'
+SCALE_DOWN_ALARM = 'scale_down'
+
+def loadAllXosTenantInfo():
+    print "SRIKANTH: Loading all XOS tenant info"
+    url = "http://ctl:9999/xos/controllerslices/"
+    admin_auth=("padmin@vicci.org", "letmein")   # use your XOS username and password
+    controller_slices = requests.get(url, auth=admin_auth).json()
+    for cslice in controller_slices:
+         slice = requests.get(cslice['slice'], auth=admin_auth).json()
+         slice_name = slice['humanReadableName']
+         if slice['service']:
+             service = requests.get(slice['service'], auth=admin_auth).json()
+             service_name = service['humanReadableName']
+         else:
+             service_name = None
+         xos_tenant_info_map[cslice['tenant_id']] = {'service':service_name, 'slice':slice_name}
+         print "SRIKANTH: Project: %s Service:%s Slice:%s" % (cslice['tenant_id'],service_name,slice_name)
+
+def loadAllXosInstanceInfo():
+    print "SRIKANTH: Loading all XOS instance info"
+    url = "http://130.127.133.87:9999/xos/instances/"
+    admin_auth=("padmin@vicci.org", "letmein")   # use your XOS username and password
+    xos_instances = requests.get(url, auth=admin_auth).json()
+    for instance in xos_instances:
+         xos_instances_info_map[instance['instance_uuid']] = {'instance_name':instance['instance_name']}
+
+def getXosTenantInfo(project):
+    xos_tenant_info = xos_tenant_info_map.get(project, None)
+    if xos_tenant_info:
+        return xos_tenant_info
+    else:
+        loadAllXosTenantInfo()
+        xos_tenant_info = xos_tenant_info_map.get(project, None)
+        if not xos_tenant_info:
+            print "SRIKANTH: Project %s has no associated XOS slice" % project
+        return xos_tenant_info
+
+def getXosInstanceInfo(resource):
+    xos_instance_info = xos_instances_info_map.get(resource, None)
+    if xos_instance_info:
+        return xos_instance_info
+    else:
+        loadAllXosInstanceInfo()
+        xos_instance_info = xos_instances_info_map.get(resource, None)
+        if not xos_instance_info:
+            print "SRIKANTH: Resource %s has no associated XOS instance" % project
+        return xos_instance_info
+
+def handle_adjust_scale(project, adjust):
+    if (adjust != 'up') and (adjust != 'down'):
+        print "SRIKANTH: Invalid adjust value %s " % adjust
+        return
+    current_instances = len(projects_map[project]['resources'].keys())
+    if (current_instances <=1 and adjust == 'down'):
+        print "SRIKANTH: %s is running with already minimum instances and can not scale down further " % project
+        return
+    if (current_instances >=2 and adjust == 'up'):
+        print "SRIKANTH: %s is running with already maximum instances and can not scale up further " % project
+        return
+    #xos_tenant = getXosTenantInfo(project)
+    xos_tenant = projects_map[project]['xos_tenant_info']
+    if not xos_tenant:
+        print "SRIKANTH: Can not handle adjust_scale for Project %s because not associated with any slice" % project
+        return
+    xos_service = xos_tenant['service']
+    xos_slice = xos_tenant['slice']
+    if not xos_service or not xos_slice: 
+        print "SRIKANTH: Can not handle adjust_scale for Project %s because not associated with any service or slice" % project
+        return
+    print "SRIKANTH: SCALE %s for Project %s, Slice=%s, Service=%s from current=%d to new=%d" % (adjust, project, xos_slice, xos_service, current_instances, current_instances+1 if (adjust=='up') else current_instances-1)
+    query_params = {'service':xos_service, 'slice_hint':xos_slice, 'scale':current_instances+1 if (adjust=='up') else current_instances-1}
+    url = "http://ctl:9999/xoslib/serviceadjustscale/"
+    admin_auth=("padmin@vicci.org", "letmein")   # use your XOS username and password
+    response = requests.get(url, params=query_params, auth=admin_auth).json()
+    print "SRIKANTH: XOS adjust_scale response: %s" % response
+
+def periodic_cpu_threshold_evaluator():
+     for project in projects_map.keys():
+          aggregate_cpu_util = sum([resource['queue'][-1]['counter_volume'] \
+                                     for resource in projects_map[project]['resources'].values()]) \
+                                     /len(projects_map[project]['resources'].keys())
+
+          if (projects_map[project]['alarm'] == INITIAL_STATE or
+              projects_map[project]['alarm'] == SCALE_UP_ALARM or
+              projects_map[project]['alarm'] == SCALE_DOWN_ALARM):
+              if aggregate_cpu_util > CPU_UPPER_THRESHOLD:
+                  projects_map[project]['uthreadshold_count'] = 1
+                  projects_map[project]['alarm'] = SCALE_UP_EVALUATION
+                  if projects_map[project]['uthreadshold_count'] >= CPU_THRESHOLD_REPEAT:
+                      projects_map[project]['alarm'] = SCALE_UP_ALARM
+                      handle_adjust_scale(project, 'up')
+              elif aggregate_cpu_util < CPU_LOWER_THRESHOLD:
+                  projects_map[project]['lthreadshold_count'] = 1
+                  projects_map[project]['alarm'] = SCALE_DOWN_EVALUATION
+                  if projects_map[project]['lthreadshold_count'] >= CPU_THRESHOLD_REPEAT:
+                      projects_map[project]['alarm'] = SCALE_DOWN_ALARM
+                      handle_adjust_scale(project, 'down')
+              else:
+                  projects_map[project]['uthreadshold_count'] = 0
+                  projects_map[project]['lthreadshold_count'] = 0
+                  projects_map[project]['alarm'] = INITIAL_STATE
+          elif projects_map[project]['alarm'] == SCALE_UP_EVALUATION:
+              if aggregate_cpu_util > CPU_UPPER_THRESHOLD:
+                  projects_map[project]['uthreadshold_count'] += 1
+                  if projects_map[project]['uthreadshold_count'] >= CPU_THRESHOLD_REPEAT:
+                      projects_map[project]['alarm'] = SCALE_UP_ALARM
+                      handle_adjust_scale(project, 'up')
+              elif aggregate_cpu_util < CPU_LOWER_THRESHOLD:
+                  projects_map[project]['lthreadshold_count'] += 1
+                  projects_map[project]['alarm'] = SCALE_DOWN_EVALUATION
+              else:
+                  projects_map[project]['uthreadshold_count'] = 0
+                  projects_map[project]['alarm'] = INITIAL_STATE
+          elif projects_map[project]['alarm'] == SCALE_DOWN_EVALUATION:
+              if aggregate_cpu_util < CPU_LOWER_THRESHOLD:
+                  projects_map[project]['lthreadshold_count'] += 1
+                  if projects_map[project]['lthreadshold_count'] >= CPU_THRESHOLD_REPEAT:
+                      projects_map[project]['alarm'] = SCALE_DOWN_ALARM
+                      handle_adjust_scale(project, 'down')
+              elif aggregate_cpu_util > CPU_UPPER_THRESHOLD:
+                  projects_map[project]['uthreadshold_count'] += 1
+                  projects_map[project]['alarm'] = SCALE_UP_EVALUATION
+              else:
+                  projects_map[project]['lthreadshold_count'] = 0
+                  projects_map[project]['alarm'] = INITIAL_STATE
+     threading.Timer(60, periodic_cpu_threshold_evaluator).start()
+
+def read_notification_from_ceilometer(host,port):
+   udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # UDP
+   udp.bind((host, port))
+
+   while True:
+      data, source = udp.recvfrom(64000)
+      try:
+         sample = msgpack.loads(data, encoding='utf-8')
+         if sample['counter_name'] != 'cpu_util':
+              continue
+         if sample['project_id'] not in projects_map.keys():
+              projects_map[sample['project_id']] = {}
+              projects_map[sample['project_id']]['xos_tenant_info'] = getXosTenantInfo(sample['project_id'])
+              projects_map[sample['project_id']]['resources'] = {}
+              projects_map[sample['project_id']]['uthreadshold_count'] = 0
+              projects_map[sample['project_id']]['lthreadshold_count'] = 0
+              projects_map[sample['project_id']]['alarm'] = INITIAL_STATE
+         resource_map = projects_map[sample['project_id']]['resources']
+         if sample['resource_id'] not in resource_map.keys():
+              resource_map[sample['resource_id']] = {}
+              resource_map[sample['resource_id']]['xos_instance_info'] = getXosInstanceInfo(sample['resource_id'])
+              resource_map[sample['resource_id']]['queue'] = []
+         samples_queue = resource_map[sample['resource_id']]['queue']
+         sample = {'counter_name':sample['counter_name'],
+                   'project_id':sample['project_id'],
+                   'resource_id':sample['resource_id'],
+                   'timestamp':sample['timestamp'],
+                   'counter_unit':sample['counter_unit'],
+                   'counter_volume':sample['counter_volume']}
+         deque = collections.deque(samples_queue, maxlen=10)
+         deque.append(sample)
+         resource_map[sample['resource_id']]['queue'] = list(deque)
+      except Exception as e:
+         print e
+
+def setup_webserver():
+    try:
+        #config = ConfigParser.ConfigParser()
+        #config.read('pub_sub.conf')
+        #webserver_host = config.get('WEB_SERVER','webserver_host')
+        #webserver_port = int (config.get('WEB_SERVER','webserver_port'))
+        #client_host    = config.get('CLIENT','client_host')
+        #client_port    = int (config.get('CLIENT','client_port'))
+ 
+        #log_level    = config.get('LOGGING','level')
+        #log_file       = config.get('LOGGING','filename')
+   
+        #level = LEVELS.get(log_level, logging.NOTSET) 
+        #logging.basicConfig(filename=log_file,format='%(asctime)s %(levelname)s %(message)s',\
+        #            datefmt=_DEFAULT_LOG_DATE_FORMAT,level=level) 
+        webserver_host = '0.0.0.0'
+        webserver_port = 9991
+   
+    except Exception as e:
+        print("* Error in config file:",e.__str__())
+        logging.error("* Error in confing file:%s",e.__str__())
+    else: 
+        app.run(host=webserver_host,port=webserver_port,debug=True, use_reloader=False)
+
+
+def main():
+   monitoring_channel = acquire_xos_monitoring_channel()
+   if not monitoring_channel:
+        print 'SRIKANTH: XOS monitoring_channel is not created... Create it before using this app'
+        return
+   loadAllXosTenantInfo()
+   loadAllXosInstanceInfo()
+   thread.start_new(read_notification_from_ceilometer,(UDP_IP,UDP_PORT,))
+   ceilometer_url = monitoring_channel['ceilometer_url']
+   subscribe_data = {"sub_info":"cpu_util","app_id":"xos_auto_scale","target":"udp://10.11.10.1:12346"}
+   subscribe_url = ceilometer_url + 'v2/subscribe'
+   response = requests.post(subscribe_url, data=json.dumps(subscribe_data))
+   print 'SRIKANTH: Ceilometer Subscription status:%s' % response.text
+   #TODO: Fix the typo in 'sucess'
+   if (not 'sucess' in response.text) and (not 'already exists' in response.text):
+       print 'SRIKANTH: Ceilometer Subscription unsuccessful...Exiting'
+       return
+   periodic_cpu_threshold_evaluator()
+   periodic_print()
+   setup_webserver()
+
+if __name__ == "__main__":
+   main()