+#!/usr/bin/python
+
# $Id$
# $URL$
-"""
-Scan the VINI Central database and create topology "rspec" attributes for
-slices that have an EGRE key. This script to be run from a cron job.
-"""
import string
import socket
+import sys
+import optparse
+from time import time
+
+# Load shell with default configuration
+sys.path.append('/usr/share/plc_api')
+from PLC.Shell import Shell
+plc = Shell(globals())
-"""
-Links in the physical topology, gleaned from looking at the Internet2
-and NLR topology maps. Link (a, b) connects sites with IDs a and b.
-"""
+parser = optparse.OptionParser()
+parser.add_option('-l', '--linkspec', action='store_true', dest='genlinkspec', default=False, help='Generate linkspec dict.')
+(options, args) = parser.parse_args()
+
+#
+# Links in the physical topology, gleaned from looking at the Internet2
+# and NLR topology maps. Link (a, b) connects sites with IDs a and b.
+#
links = [(2, 12), # I2 Princeton - New York
(4, 5), # NLR Chicago - Houston
(4, 6), # NLR Chicago - Atlanta
(21, 22)] # I2 Seattle - Salt Lake City
-"""
-Generate site adjacency map from list of links
-"""
def gen_adjacencies(links):
+ """
+ Generate site adjacency map from list of links
+ """
adj = {}
for (a, b) in links:
if a in adj:
return adj
-"""
-Test whether two sites are adjacent to each other in the adjacency graph.
-"""
def is_adjacent(adjacencies, s1, s2):
+ """
+ Test whether two sites are adjacent to each other in the adjacency graph.
+ """
set1 = set(adjacencies[s1])
set2 = set(adjacencies[s2])
raise Exception("Adjacency mismatch, sites %d and %d." % (s1, s2))
-"""
-Check the adjacency graph for discrepancies.
-"""
def check_adjacencies(adjacencies):
+ """
+ Check the adjacency graph for discrepancies.
+ """
for site in adjacencies:
for adj in adjacencies[site]:
try:
raise Exception("Siteid %s not found." % siteid)
-"""
-Find the IP address assigned to a virtual interface in the topology
-(for creating /etc/hosts)
-"""
def get_virt_ip(myid, nodeid):
+ """
+ Find the IP address assigned to a virtual interface in the topology
+ (for creating /etc/hosts)
+ """
if myid < nodeid:
virtip = "10.%d.%d.2" % (myid, nodeid)
else:
return virtip
-"""
-Create a dictionary of site records keyed by site ID
-"""
def get_sites():
- tmp = []
+ """
+ Create a dictionary of site records keyed by site ID
+ """
+ tmp = {}
for site in GetSites():
- t = site['site_id'], site
- tmp.append(t)
- return dict(tmp)
+ tmp[site['site_id']] = site
+ return tmp
-"""
-Create a dictionary of node records keyed by node ID
-"""
def get_nodes():
- tmp = []
+ """
+ Create a dictionary of node records keyed by node ID
+ """
+ tmp = {}
for node in GetNodes():
- t = node['node_id'], node
- tmp.append(t)
- return dict(tmp)
+ tmp[node['node_id']] = node
+ return tmp
+
+
+def ifSpecDict(nodedict):
+ """
+ Generate ifspec dict for given node dict.
+ """
+ # ifspecattrs = ['name',
+ # 'addr',
+ # 'type',
+ # 'init_params',
+ # 'bw',
+ # 'min_alloc',
+ # 'max_alloc',
+ # 'ip_spoof']
+ # Assume only 1 node network per node.
+ nodenetwork = GetNodeNetworks(nodedict['nodenetwork_ids'])[0]
+ ifspecs = {'name': nodenetwork['hostname'],
+ 'addr': nodenetwork['ip'],
+ 'type': nodenetwork['type'],
+ 'init_params': None,
+ 'bw': '1Gps',
+ 'min_alloc': 0,
+ 'max_alloc': '1Gbps',
+ 'ip_spoof': False}
+ return ifspecs
+
+
+def linkSpecDict():
+ """
+ Create dict for physical topology.
+ """
+ # list of attributes in the LinkSpec
+ # (https://svn.planet-lab.org/svn/geniwrapper/trunk/rspec/model/planetlab.{ecore,xsd})
+ # linkspecattrs = ['type',
+ # 'init_params',
+ # 'bw',
+ # 'min_alloc',
+ # 'max_alloc',
+ # 'endpoint', # <-- ifspec(S)?
+ # 'start_time',
+ # 'duration']
+ # list of linkspecs. 1 per adjacency
+ linkspecs = []
+ # links maps sites. Get nodes in site, make linkspecs for each.
+ for (i, j) in links:
+ print "sites = (%s, %s) nodes = %s" %(i,j, GetNodes({'site_id':[i,j]}, ['node_id']))
+ nodeset = GetNodes({'site_id':[i,j]})
+ ifspecs = []
+ for node in nodeset:
+ ifspecs.append(ifSpecDict(node))
+ linkspecs.append({\
+ 'type': 'ipv4',
+ 'init_params': None,
+ 'bw': '1Gbps',
+ 'min_alloc': '0',
+ 'bw': '1Gbps',
+ 'endpoints': ifspecs,
+ 'start_time': int(time()),
+ 'duration': '-1'})
+ return linkspecs
+
adjacencies = gen_adjacencies(links)
check_adjacencies(adjacencies)
-
+
""" Need global topology information """
sites = get_sites()
nodes = get_nodes()
+
-for slice in GetSlices():
- """ Create dictionary of the slice's attributes """
- attrs ={}
- topo_attr = {}
- for attribute in GetSliceAttributes(slice['slice_attribute_ids']):
- attrs[attribute['name']] = attribute['slice_attribute_id']
- if attribute['name'] == 'topo_rspec' and attribute['node_id']:
- topo_attr[attribute['node_id']] = attribute['slice_attribute_id']
-
- if 'egre_key' in attrs:
- #print "Virtual topology for %s:" % slice['name']
- slicenodes = set(slice['node_ids'])
- hosts = "127.0.0.1\t\tlocalhost\n"
- """
- For each node in the slice, check whether nodes at adjacent sites
- are also in the slice's node set. If so, add a virtual link to
- the rspec.
- """
- for node in slicenodes:
- topo = []
- for adj in adjacencies[get_site(node)]:
- for adj_node in get_sitenodes(adj):
- if node != adj_node and adj_node in slicenodes:
- link = adj_node, get_ipaddr(adj_node), "1Mbit"
- topo.append(link)
- shortname = nodes[node]['hostname'].replace('.vini-veritas.net', '')
- hosts += "%s\t\t%s\n" % (get_virt_ip(node, adj_node),
- shortname)
- topo_str = "%s" % topo
- #print node, topo_str
- if node in topo_attr:
- UpdateSliceAttribute(topo_attr[node], topo_str)
- del topo_attr[node]
+def main():
+ """
+ Scan the VINI Central database and create topology "rspec" attributes for
+ slices that have an EGRE key. This script to be run from a cron job.
+ """
+
+ for slice in GetSlices():
+ """ Create dictionary of the slice's attributes """
+ attrs ={}
+ topo_attr = {}
+ for attribute in GetSliceAttributes(slice['slice_attribute_ids']):
+ attrs[attribute['name']] = attribute['slice_attribute_id']
+ if attribute['name'] == 'topo_rspec' and attribute['node_id']:
+ topo_attr[attribute['node_id']] = attribute['slice_attribute_id']
+
+ if 'egre_key' in attrs:
+ #print "Virtual topology for %s:" % slice['name']
+ slicenodes = set(slice['node_ids'])
+ hosts = "127.0.0.1\t\tlocalhost\n"
+ """
+ For each node in the slice, check whether nodes at adjacent sites
+ are also in the slice's node set. If so, add a virtual link to
+ the rspec.
+ """
+ for node in slicenodes:
+ topo = []
+ for adj in adjacencies[get_site(node)]:
+ for adj_node in get_sitenodes(adj):
+ if node != adj_node and adj_node in slicenodes:
+ link = adj_node, get_ipaddr(adj_node), "1Mbit"
+ topo.append(link)
+ shortname = nodes[node]['hostname'].replace('.vini-veritas.net', '')
+ hosts += "%s\t\t%s\n" % (get_virt_ip(node, adj_node),
+ shortname)
+ topo_str = "%s" % topo
+ #print node, topo_str
+ if node in topo_attr:
+ UpdateSliceAttribute(topo_attr[node], topo_str)
+ del topo_attr[node]
+ else:
+ id = slice['slice_id']
+ AddSliceAttribute(id, 'topo_rspec', topo_str, node)
+
+ #print hosts
+ if 'hosts' in attrs:
+ UpdateSliceAttribute(attrs['hosts'], hosts)
else:
id = slice['slice_id']
- AddSliceAttribute(id, 'topo_rspec', topo_str, node)
-
- #print hosts
- if 'hosts' in attrs:
- UpdateSliceAttribute(attrs['hosts'], hosts)
- else:
- id = slice['slice_id']
- AddSliceAttribute(id, 'hosts', hosts)
- #else:
- #print "No EGRE key for %s" % slice['name']
-
- """ Remove old topo_rspec entries """
- for node in topo_attr:
- DeleteSliceAttribute(topo_attr[node])
-
+ AddSliceAttribute(id, 'hosts', hosts)
+ #else:
+ #print "No EGRE key for %s" % slice['name']
+
+ """ Remove old topo_rspec entries """
+ for node in topo_attr:
+ DeleteSliceAttribute(topo_attr[node])
+
+
+if __name__ == '__main__':
+ if options.genlinkspec:
+ import pprint
+ pp = pprint
+ print "LinkSpecs ="
+ pp.pprint(linkSpecDict())
+ else:
+ print "Main"
+ main()
git://git.onelab.eu / nodemanager-topo.git / blobdiff