added files related to the ipv6 support on slices

[nodemanager.git] / plugins / update_ipv6addr_slivertag.py

diff --git a/plugins/update_ipv6addr_slivertag.py b/plugins/update_ipv6addr_slivertag.py
new file mode 100644 (file)
index 0000000..a1190cf
--- /dev/null
+++ b/plugins/update_ipv6addr_slivertag.py
@@ -0,0 +1,84 @@
+"""
+IPv6 test! version: 0.3
+"""
+
+import logger
+import os
+import socket
+import re
+
+import tools
+import libvirt
+import uuid
+from sliver_libvirt import Sliver_Libvirt
+from xml.dom.minidom import parseString
+
+priority=150
+
+ipv6addrtag = 'ipv6_address'
+
+def start():
+    logger.log("update_ipv6addr_slivertag: plugin starting up...")
+
+
+def getSliverTagId(slivertags):
+        for slivertag in slivertags:
+                       if slivertag['tagname']==ipv6addrtag:
+                        return slivertag['slice_tag_id']
+       return None
+
+def SetSliverTag(plc, data, tagname):
+
+    for slice in data['slivers']:
+       logger.log("update_ipv6addr_slivertag: starting the update procedure for slice=%s" % (slice['name']) )
+
+       # TODO: what about the prefixlen? should we add on it as well?
+       # here, I'm just taking the ipv6addr (value)
+       value,prefixlen = tools.get_sliver_ipv6(slice['name'])
+
+       node_id = tools.node_id()
+       slivertags = plc.GetSliceTags({"name":slice['name'],"node_id":node_id,"tagname":tagname})
+       #logger.log(repr(str(slivertags)))
+       #for tag in slivertags:
+       #       logger.log(repr(str(tag)))
+
+       ipv6addr = plc.GetSliceIPv6Address(slice['name'])
+       logger.log("update_ipv6addr_slivertag: slice=%s getSliceIPv6Address=%s" % (slice['name'],ipv6addr) )
+       # if the value to set is null...
+       if value is None:
+               if ipv6addr is not None:
+                       # then, let's remove the slice tag
+                       slivertag_id = getSliverTagId(slivertags)
+                       if slivertag_id:
+                               try:
+                                       plc.DeleteSliceTag(slivertag_id)
+                                       logger.log("update_ipv6addr_slivertag: slice tag deleted for slice=%s" % (slice['name']) )
+                               except:
+                                       logger.log("update_ipv6addr_slivertag: slice tag not deleted for slice=%s" % (slice['name']) )
+               # if there's no ipv6 address anymore, then remove everything from the /etc/hosts
+               tools.remove_all_ipv6addr_hosts(slice['name'], data['hostname'])
+       else:
+               # if the ipv6 addr set on the slice does not exist yet, so, let's add it
+               if (ipv6addr is None) and len(value)>0:
+                       try:
+                               logger.log("update_ipv6addr_slivertag: slice name=%s" % (slice['name']) )
+                               slivertag_id=plc.AddSliceTag(slice['name'],tagname,value,node_id)
+                               logger.log("update_ipv6addr_slivertag: slice tag added to slice %s" % (slice['name']) )
+                       except:
+                               logger.log("update_ipv6addr_slivertag: could not set ipv6 addr tag to the sliver. slice=%s tag=%s node_id=%d" % (slice['name'],tagname,node_id) )
+               # if the ipv6 addr set on the slice is different on the value provided, let's update it
+               if (ipv6addr is not None) and (len(value)>0) and (ipv6addr!=value):
+                       slivertag_id = getSliverTagId(slivertags)
+                       plc.UpdateSliceTag(slivertag_id,value)
+               # ipv6 entry on /etc/hosts of each slice
+               result = tools.search_ipv6addr_hosts(slice['name'], value)
+               if not result:
+                       tools.remove_all_ipv6addr_hosts(slice['name'], data['hostname'])
+                       tools.add_ipv6addr_hosts_line(slice['name'], data['hostname'], value)
+       logger.log("update_ipv6addr_slivertag: finishing the update process for slice=%s" % (slice['name']) )
+
+def GetSlivers(data, config, plc):
+
+    SetSliverTag(plc, data, ipv6addrtag)
+
+    logger.log("update_ipv6addr_slivertag: all done!")