Added logging functionality to resource models.

[osm/vim-emu.git] / src / emuvim / examples / resource_model_demo_topology.py

diff --git a/src/emuvim/examples/resource_model_demo_topology.py b/src/emuvim/examples/resource_model_demo_topology.py
index ae6ba5e..7a39b00 100644 (file)
--- a/src/emuvim/examples/resource_model_demo_topology.py
+++ b/src/emuvim/examples/resource_model_demo_topology.py
@@ -4,6 +4,7 @@ A simple topology to test resource model support.
 
 import logging
 import time
+import os
 from mininet.log import setLogLevel
 from mininet.node import Controller
 from emuvim.dcemulator.net import DCNetwork
@@ -14,20 +15,24 @@ from emuvim.dcemulator.resourcemodel.upb.simple import UpbSimpleCloudDcRM
 logging.basicConfig(level=logging.INFO)
 
 
+RESOURCE_LOG_PATH = "resource.log"
+
+
 def create_topology1():
+    cleanup()
     # create topology
     # use a maximum of 50% cpu time for containers added to data centers
     net = DCNetwork(dc_emulation_max_cpu=0.5, controller=Controller)
     # add some data centers and create a topology
-    dc1 = net.addDatacenter("dc1")
-    dc2 = net.addDatacenter("dc2")
+    dc1 = net.addDatacenter("dc1", resource_log_path=RESOURCE_LOG_PATH)
+    dc2 = net.addDatacenter("dc2", resource_log_path=RESOURCE_LOG_PATH)
     s1 = net.addSwitch("s1")
     net.addLink(dc1, s1, delay="10ms")
     net.addLink(dc2, s1, delay="20ms")
 
     # create and assign resource models for each DC
-    rm1 = UpbSimpleCloudDcRM(max_cu=10, max_mu=1024)
-    rm2 = UpbSimpleCloudDcRM(max_cu=20)
+    rm1 = UpbSimpleCloudDcRM(max_cu=4, max_mu=1024)
+    rm2 = UpbSimpleCloudDcRM(max_cu=6)
     dc1.assignResourceModel(rm1)
     dc2.assignResourceModel(rm2)
 
@@ -54,11 +59,22 @@ def create_topology1():
     dc1.startCompute("vnf3", flavor_name="small")
     dc2.startCompute("vnf4", flavor_name="medium")
     print "... done."
-    time.sleep(2)
+    time.sleep(5)
+    print "Removing instances ..."
+    dc1.stopCompute("vnf1")
+    dc2.stopCompute("vnf4")
+    print "... done"
     net.CLI()
     net.stop()
 
 
+def cleanup():
+    try:
+        os.remove(RESOURCE_LOG_PATH)
+    except OSError:
+        pass
+
+
 def main():
     setLogLevel('info')  # set Mininet loglevel
     create_topology1()