-from sfa.util.rspec import RSpec
-import sys
-import pdb
-from sfa.util.namespace import *
-from sfa.util.rspec import *
-from sfa.util.specdict import *
-from sfa.util.faults import *
-from sfa.util.storage import *
-from sfa.util.policy import Policy
-from sfa.util.debug import log
-from sfa.server.aggregate import Aggregates
from sfa.util.xrn import urn_to_hrn, hrn_to_urn, get_authority
from sfa.util.plxrn import hrn_to_pl_slicename
from sfa.util.plxrn import hrn_to_pl_slicename
-from sfa.server.registry import Registries
from sfa.util.rspec import RSpec
from sfa.util.sfalogging import sfa_logger
-from sfa.util.faults import *
-
-import xml.dom.minidom
-
-SFA_MAX_CONF_FILE = '/etc/sfa/max_allocations'
-SFA_MAX_DEFAULT_RSPEC = '/etc/sfa/max_physical.xml'
-SFA_MAX_CANNED_RSPEC = '/etc/sfa/max_physical_canned.xml'
-
-topology = {}
-
-class SfaOutOfResource(SfaFault):
- def __init__(self, interface):
- faultString = "Interface " + interface + " not available"
- SfaFault.__init__(self, 100, faultString, '')
-
-class SfaNoPairRSpec(SfaFault):
- def __init__(self, interface, interface2):
- faultString = "Interface " + interface + " should be paired with " + interface2
- SfaFault.__init__(self, 100, faultString, '')
-
-# Returns a mapping from interfaces to the nodes they lie on and their peer interfaces
-# i -> node,i_peer
-
-def get_interface_map():
- r = RSpec()
- r.parseFile(SFA_MAX_DEFAULT_RSPEC)
- rspec = r.toDict()
- capacity = rspec['rspec']['capacity']
- netspec = capacity[0]['netspec'][0]
- linkdefs = {}
- for n in netspec['nodespec']:
- ifspecs = n['ifspec']
- nodename = n['node']
- for i in ifspecs:
- ifname = i['name']
- linkid = i['linkid']
-
- if (linkdefs.has_key(linkid)):
- linkdefs[linkid].extend([(nodename,ifname)])
- else:
- linkdefs[linkid]=[(nodename,ifname)]
-
- # topology maps interface x interface -> link,node1,node2
- topology={}
-
- for k in linkdefs.keys():
- (n1,i1) = linkdefs[k][0]
- (n2,i2) = linkdefs[k][1]
-
- topology[i1] = (n1, i2)
- topology[i2] = (n2, i1)
-
-
- return topology
-
-
-def allocations_to_rspec(allocations):
- rspec = xml.dom.minidom.parse(SFA_MAX_DEFAULT_RSPEC)
- req = rspec.firstChild.appendChild(rspec.createElement("request"))
- for (iname,ip) in allocations:
- ifspec = req.appendChild(rspec.createElement("ifspec"))
- ifspec.setAttribute("name","tns:"+iname)
- ifspec.setAttribute("ip",ip)
-
- return rspec.toxml()
-
-
-def if_endpoints(ifs):
- nodes=[]
- for l in ifs:
- nodes.extend(topology[l][0])
- return nodes
-
-def lock_state_file():
- # Noop for demo
- return True
-
-def unlock_state_file():
- return True
- # Noop for demo
-
-def read_alloc_dict():
- alloc_dict={}
- rows = open(SFA_MAX_CONF_FILE).read().split('\n')
- for r in rows:
- columns = r.split(' ')
- if (len(columns)==2):
- hrn = columns[0]
- allocs = columns[1].split(',')
- ipallocs = map(lambda alloc:alloc.split('/'), allocs)
- alloc_dict[hrn]=ipallocs
- return alloc_dict
-
-def commit_alloc_dict(d):
- f = open(SFA_MAX_CONF_FILE, 'w')
- for hrn in d.keys():
- columns = d[hrn]
- ipcolumns = map(lambda x:"/".join(x), columns)
- row = hrn+' '+','.join(ipcolumns)+'\n'
- f.write(row)
- f.close()
-
-def collapse_alloc_dict(d):
- ret = []
- for k in d.keys():
- ret.extend(d[k])
from sfa.util.config import Config
from sfa.managers.aggregate_manager_pl import GetVersion
import os
sys_cmd = "cd " + client_path + "; java -classpath AggregateWS-client-api.jar:lib/* net.geni.aggregate.client.examples." + client_app + " ./repo " + am_url + " " + ' '.join(params)
ret = shell_execute(sys_cmd, timeout)
sfa_logger().debug("shell_execute cmd: %s returns %s" % (sys_cmd, ret))
- return ret
-
-
-def alloc_links(api, hrn, links_to_add, links_to_drop):
- slicename=hrn_to_pl_slicename(hrn)
- for (iface,ip) in links_to_add:
- node = topology[iface][0][0]
- try:
- api.plshell.AddSliceTag(api.plauth, slicename, "ip_addresses", ip, node)
- api.plshell.AddSliceTag(api.plauth, slicename, "vsys", "getvlan", node)
- except Exception:
- # Probably a duplicate tag. XXX July 21
- pass
# save request RSpec xml content to a tmp file
def save_rspec_to_file(rspec):
path = RSPEC_TMP_FILE_PREFIX + "_" + time.strftime('%Y%m%dT%H:%M:%S', time.gmtime(time.time())) +".xml"
(ret, output) = call_am_apiclient("CreateSliceNetworkClient", [rspec_path,], 3)
# parse output ?
rspec = "<RSpec type=\"SFA\"> Done! </RSpec>"
- return True
-
-def alloc_nodes(api,hrn, requested_ifs):
- requested_nodes = if_endpoints(requested_ifs)
- create_slice_max_aggregate(api, hrn, requested_nodes)
-
-# Taken from slices.py
-
-def create_slice_max_aggregate(api, hrn, nodes):
- # Get the slice record
- global topology
- topology = get_interface_map()
- slice = {}
- registries = Registries(api)
- registry = registries[api.hrn]
- credential = api.getCredential()
- records = registry.resolve(credential, hrn)
- for record in records:
- if record.get_type() in ['slice']:
- slice = record.as_dict()
- if not slice:
- raise RecordNotFound(hrn)
-
- # Make sure slice exists at plc, if it doesnt add it
- slicename = hrn_to_pl_slicename(hrn)
- slices = api.plshell.GetSlices(api.plauth, [slicename], ['node_ids'])
- if not slices:
- parts = slicename.split("_")
- login_base = parts[0]
- # if site doesnt exist add it
- sites = api.plshell.GetSites(api.plauth, [login_base])
- if not sites:
- authority = get_authority(hrn)
- site_records = registry.resolve(credential, authority)
- site_record = {}
- if not site_records:
- raise RecordNotFound(authority)
- site_record = site_records[0]
- site = site_record.as_dict()
-
- # add the site
- site.pop('site_id')
- site_id = api.plshell.AddSite(api.plauth, site)
- else:
- site = sites[0]
-
- slice_fields = {}
- slice_keys = ['name', 'url', 'description']
- for key in slice_keys:
- if key in slice and slice[key]:
- slice_fields[key] = slice[key]
- api.plshell.AddSlice(api.plauth, slice_fields)
- slice = slice_fields
- slice['node_ids'] = 0
- else:
- slice = slices[0]
-
- # get the list of valid slice users from the registry and make
- # they are added to the slice
- researchers = record.get('researcher', [])
- for researcher in researchers:
- person_record = {}
- person_records = registry.resolve(credential, researcher)
- for record in person_records:
- if record.get_type() in ['user']:
- person_record = record
- if not person_record:
- pass
- person_dict = person_record.as_dict()
- persons = api.plshell.GetPersons(api.plauth, [person_dict['email']],
- ['person_id', 'key_ids'])
-
- # Create the person record
- if not persons:
- person_id=api.plshell.AddPerson(api.plauth, person_dict)
-
- # The line below enables the user account on the remote aggregate
- # soon after it is created.
- # without this the user key is not transfered to the slice
- # (as GetSlivers returns key of only enabled users),
- # which prevents the user from login to the slice.
- # We may do additional checks before enabling the user.
-
- api.plshell.UpdatePerson(api.plauth, person_id, {'enabled' : True})
- key_ids = []
- else:
- key_ids = persons[0]['key_ids']
-
- api.plshell.AddPersonToSlice(api.plauth, person_dict['email'],
- slicename)
-
- # Get this users local keys
- keylist = api.plshell.GetKeys(api.plauth, key_ids, ['key'])
- keys = [key['key'] for key in keylist]
-
- # add keys that arent already there
- for personkey in person_dict['keys']:
- if personkey not in keys:
- key = {'key_type': 'ssh', 'key': personkey}
- api.plshell.AddPersonKey(api.plauth, person_dict['email'], key)
-
- # find out where this slice is currently running
- nodelist = api.plshell.GetNodes(api.plauth, slice['node_ids'],
- ['hostname'])
- hostnames = [node['hostname'] for node in nodelist]
-
- # remove nodes not in rspec
- deleted_nodes = list(set(hostnames).difference(nodes))
- # add nodes from rspec
- added_nodes = list(set(nodes).difference(hostnames))
-
- api.plshell.AddSliceToNodes(api.plauth, slicename, added_nodes)
- api.plshell.DeleteSliceFromNodes(api.plauth, slicename, deleted_nodes)
-
def delete_slice(api, xrn, cred):
slice_id = get_short_slice_id(cred, xrn)
(ret, output) = call_am_apiclient("DeleteSliceNetworkClient", [slice_id,], 3)
# parse output ?
- return 1
-
-
-def get_rspec(api, creds, options):
- # get slice's hrn from options
- xrn = options.get('geni_slice_urn', None)
- hrn, type = urn_to_hrn(xrn)
- # Eg. config line:
- # plc.princeton.sapan vlan23,vlan45
-
- allocations = read_alloc_dict()
- if (hrn and allocations.has_key(hrn)):
- ret_rspec = allocations_to_rspec(allocations[hrn])
def get_rspec(api, cred, options):
#geni_slice_urn: urn:publicid:IDN+plc:maxpl+slice+xi_rspec_test1
urn = options.get('geni_slice_urn')
slice_id = get_short_slice_id(cred, urn)
if slice_id == None:
(ret, output) = call_am_apiclient("GetResourceTopology", ['all', '\"\"'], 5)
- else:
- ret_rspec = open(SFA_MAX_CANNED_RSPEC).read()
-
- return (ret_rspec)
-
-
-def create_slice(api, xrn, creds, rspec_xml, users):
- global topology
- hrn = urn_to_hrn(xrn)[0]
- topology = get_interface_map()
-
- # Check if everything in rspec is either allocated by hrn
- # or not allocated at all.
- r = RSpec()
- r.parseString(rspec_xml)
- rspec = r.toDict()
-
- lock_state_file()
-
- allocations = read_alloc_dict()
- requested_allocations = rspec_to_allocations (rspec)
- current_allocations = collapse_alloc_dict(allocations)
- try:
- current_hrn_allocations=allocations[hrn]
- except KeyError:
- current_hrn_allocations=[]
-
- # Check request against current allocations
- requested_interfaces = map(lambda(elt):elt[0], requested_allocations)
- current_interfaces = map(lambda(elt):elt[0], current_allocations)
- current_hrn_interfaces = map(lambda(elt):elt[0], current_hrn_allocations)
-
- for a in requested_interfaces:
- if (a not in current_hrn_interfaces and a in current_interfaces):
- raise SfaOutOfResource(a)
- if (topology[a][1] not in requested_interfaces):
- raise SfaNoPairRSpec(a,topology[a][1])
- # Request OK
-
- # Allocations to delete
- allocations_to_delete = []
- for a in current_hrn_allocations:
- if (a not in requested_allocations):
- allocations_to_delete.extend([a])
-
- # Ok, let's do our thing
- alloc_nodes(api, hrn, requested_interfaces)
- alloc_links(api, hrn, requested_allocations, allocations_to_delete)
- allocations[hrn] = requested_allocations
- commit_alloc_dict(allocations)
-
- unlock_state_file()
-
- return True
-
-def rspec_to_allocations(rspec):
- ifs = []
- try:
- ifspecs = rspec['rspec']['request'][0]['ifspec']
- for l in ifspecs:
- ifs.extend([(l['name'].replace('tns:',''),l['ip'])])
- except KeyError:
- # Bad RSpec
- pass
- return ifs
- # xxx - fixme
- (ret, output) = call_am_apiclient("GetResourceTopology", ['all', slice_id,], 5)
+ (ret, output) = call_am_apiclient("GetResourceTopology", ['all', slice_id,], 5)
# parse output into rspec XML
if output.find("No resouce found") > 0:
rspec = "<RSpec type=\"SFA\"> <Fault>No resource found</Fault> </RSpec>"
def fetch_context(slice_hrn, user_hrn, contexts):
base_context = {'sfa':{'user':{'hrn':user_hrn}}}
return base_context
-
-def main():
- t = get_interface_map()
api = SfaAPI()
- r = RSpec()
- rspec_xml = open(sys.argv[1]).read()
- #get_rspec(None,'foo')
- create_slice(None, "plc.princeton.sap0", rspec_xml)
-
create_slice(api, "plc.maxpl.test000", None, rspec_xml, None)
-if __name__ == "__main__":
- main()
git://git.onelab.eu / sfa.git / commitdiff