X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=sidebyside;f=sfa%2Fmanagers%2Fslice_manager_pl.py;h=acf7864c54f26567cd4dd545961c9dd42b08eb60;hb=40d980701a909581b485fbcf7c58ca3ace543961;hp=4f1d549720731a27ea399d9d3fb447a946f986ce;hpb=86558315779a33930c809a4d0b55b8adc57434b5;p=sfa.git diff --git a/sfa/managers/slice_manager_pl.py b/sfa/managers/slice_manager_pl.py index 4f1d5497..acf7864c 100644 --- a/sfa/managers/slice_manager_pl.py +++ b/sfa/managers/slice_manager_pl.py @@ -1,92 +1,118 @@ -### $Id: slices.py 15842 2009-11-22 09:56:13Z anil $ -### $URL: https://svn.planet-lab.org/svn/sfa/trunk/sfa/plc/slices.py $ - -import datetime -import time -import traceback +# import sys -from copy import deepcopy -from lxml import etree +import time,datetime from StringIO import StringIO from types import StringTypes +from copy import deepcopy +from copy import copy +from lxml import etree + +from sfa.util.sfalogging import sfa_logger from sfa.util.rspecHelper import merge_rspecs -from sfa.util.namespace import * +from sfa.util.xrn import Xrn, urn_to_hrn, hrn_to_urn +from sfa.util.plxrn import hrn_to_pl_slicename from sfa.util.rspec import * from sfa.util.specdict import * from sfa.util.faults import * from sfa.util.record import SfaRecord +from sfa.rspecs.pg_rspec import PGRSpec +from sfa.rspecs.sfa_rspec import SfaRSpec +from sfa.rspecs.rspec_converter import RSpecConverter +from sfa.rspecs.rspec_parser import parse_rspec from sfa.util.policy import Policy from sfa.util.prefixTree import prefixTree from sfa.util.sfaticket import * from sfa.trust.credential import Credential from sfa.util.threadmanager import ThreadManager import sfa.util.xmlrpcprotocol as xmlrpcprotocol -from sfa.util.debug import log import sfa.plc.peers as peers -from copy import copy - -def get_version(): - version = {} - version['geni_api'] = 1 - version['sfa'] = 1 - return version - -def slice_status(api, slice_xrn, creds ): - result = {} - result['geni_urn'] = slice_xrn - result['geni_status'] = 'unknown' - result['geni_resources'] = {} - return result - -def create_slice(api, xrn, creds, rspec, users): - hrn, type = urn_to_hrn(xrn) +from sfa.util.version import version_core +from sfa.rspecs.rspec_version import RSpecVersion +from sfa.rspecs.pl_rspec_version import supported_rspecs +from sfa.util.callids import Callids + +# we have specialized xmlrpclib.ServerProxy to remember the input url +# OTOH it's not clear if we're only dealing with XMLRPCServerProxy instances +def get_serverproxy_url (server): + try: + return server.url + except: + sfa_logger().warning("GetVersion, falling back to xmlrpclib.ServerProxy internals") + return server._ServerProxy__host + server._ServerProxy__handler + +def GetVersion(api): + # peers explicitly in aggregates.xml + peers =dict ([ (peername,get_serverproxy_url(v)) for (peername,v) in api.aggregates.iteritems() + if peername != api.hrn]) + xrn=Xrn (api.hrn) + version_more = {'interface':'slicemgr', + 'hrn' : xrn.get_hrn(), + 'urn' : xrn.get_urn(), + 'peers': peers,} + version_more.update(supported_rspecs) + sm_version=version_core(version_more) + # local aggregate if present needs to have localhost resolved + if api.hrn in api.aggregates: + local_am_url=get_serverproxy_url(api.aggregates[api.hrn]) + sm_version['peers'][api.hrn]=local_am_url.replace('localhost',sm_version['hostname']) + return sm_version + +def CreateSliver(api, xrn, creds, rspec_str, users, call_id): + + def _CreateSliver(server, xrn, credentail, rspec, users, call_id): + # get aggregate version + version = server.GetVersion() + if 'sfa' in version: + # just send the whole rspec to SFA AM/SM + server.CreateSliver(xrn, credential, rspec, users, call_id) + elif 'geni_api' in version: + pass + # convert to pg rspec + + + if Callids().already_handled(call_id): return "" # Validate the RSpec against PlanetLab's schema --disabled for now # The schema used here needs to aggregate the PL and VINI schemas # schema = "/var/www/html/schemas/pl.rng" + rspec = parse_rspec(rspec_str) schema = None if schema: - try: - tree = etree.parse(StringIO(rspec)) - except etree.XMLSyntaxError: - message = str(sys.exc_info()[1]) - raise InvalidRSpec(message) - - relaxng_doc = etree.parse(schema) - relaxng = etree.RelaxNG(relaxng_doc) - - if not relaxng(tree): - error = relaxng.error_log.last_error - message = "%s (line %s)" % (error.message, error.line) - raise InvalidRSpec(message) - - # get the callers hrn - valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0] - caller_hrn = valid_cred.get_gid_caller().get_hrn() + rspec.validate(schema) # attempt to use delegated credential first credential = api.getDelegatedCredential(creds) - if not credential: + if not credential: credential = api.getCredential() + + # get the callers hrn + hrn, type = urn_to_hrn(xrn) + valid_cred = api.auth.checkCredentials(creds, 'createsliver', hrn)[0] + caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() threads = ThreadManager() for aggregate in api.aggregates: # prevent infinite loop. Dont send request back to caller # unless the caller is the aggregate's SM - if caller_hrn == aggrgate and aggregate != api.hrn: + if caller_hrn == aggregate and aggregate != api.hrn: continue # Just send entire RSpec to each aggregate server = api.aggregates[aggregate] - threads.run(server.CreateSliver, xrn, credential, rspec, users) + threads.run(_CreateSliver, server, xrn, credential, rspec.toxml(), users, call_id) - results = threads.get_results() - merged_rspec = merge_rspecs(results) - return merged_rspec + results = threads.get_results() + rspec = SfaRSpec() + for result in results: + rspec.merge(result) + return rspec.toxml() + +def RenewSliver(api, xrn, creds, expiration_time, call_id): + if Callids().already_handled(call_id): return True -def renew_slice(api, xrn, creds, expiration_time): + (hrn, type) = urn_to_hrn(xrn) # get the callers hrn - valid_cred = api.auth.checkCredentials(creds, 'renewesliver', hrn)[0] - caller_hrn = valid_cred.get_gid_caller().get_hrn() + valid_cred = api.auth.checkCredentials(creds, 'renewsliver', hrn)[0] + caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() # attempt to use delegated credential first credential = api.getDelegatedCredential(creds) @@ -96,13 +122,13 @@ def renew_slice(api, xrn, creds, expiration_time): for aggregate in api.aggregates: # prevent infinite loop. Dont send request back to caller # unless the caller is the aggregate's SM - if caller_hrn == aggrgate and aggregate != api.hrn: + if caller_hrn == aggregate and aggregate != api.hrn: continue server = api.aggregates[aggregate] - threads.run(server.RenewSliver, xrn, credential, expiration_time) - threads.get_results() - return 1 + threads.run(server.RenewSliver, xrn, [credential], expiration_time, call_id) + # 'and' the results + return reduce (lambda x,y: x and y, threads.get_results() , True) def get_ticket(api, xrn, creds, rspec, users): slice_hrn, type = urn_to_hrn(xrn) @@ -115,18 +141,18 @@ def get_ticket(api, xrn, creds, rspec, users): aggregate_rspecs[aggregate_hrn] = rspec # get the callers hrn - valid_cred = api.auth.checkCredentials(creds, 'getticket', hrn)[0] - caller_hrn = valid_cred.get_gid_caller().get_hrn() + valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0] + caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() # attempt to use delegated credential first credential = api.getDelegatedCredential(creds) if not credential: credential = api.getCredential() threads = ThreadManager() - for aggregate, aggregate_rspec in aggregate_rspecs.items(): + for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems(): # prevent infinite loop. Dont send request back to caller # unless the caller is the aggregate's SM - if caller_hrn == aggrgate and aggregate != api.hrn: + if caller_hrn == aggregate and aggregate != api.hrn: continue server = None if aggregate in api.aggregates: @@ -182,10 +208,12 @@ def get_ticket(api, xrn, creds, rspec, users): return ticket.save_to_string(save_parents=True) -def delete_slice(api, xrn, creds): +def DeleteSliver(api, xrn, creds, call_id): + if Callids().already_handled(call_id): return "" + (hrn, type) = urn_to_hrn(xrn) # get the callers hrn valid_cred = api.auth.checkCredentials(creds, 'deletesliver', hrn)[0] - caller_hrn = valid_cred.get_gid_caller().get_hrn() + caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() # attempt to use delegated credential first credential = api.getDelegatedCredential(creds) @@ -195,17 +223,19 @@ def delete_slice(api, xrn, creds): for aggregate in api.aggregates: # prevent infinite loop. Dont send request back to caller # unless the caller is the aggregate's SM - if caller_hrn == aggrgate and aggregate != api.hrn: + if caller_hrn == aggregate and aggregate != api.hrn: continue server = api.aggregates[aggregate] - threads.run(server.DeleteSliver, xrn, credential) + threads.run(server.DeleteSliver, xrn, credential, call_id) threads.get_results() return 1 def start_slice(api, xrn, creds): + hrn, type = urn_to_hrn(xrn) + # get the callers hrn valid_cred = api.auth.checkCredentials(creds, 'startslice', hrn)[0] - caller_hrn = valid_cred.get_gid_caller().get_hrn() + caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() # attempt to use delegated credential first credential = api.getDelegatedCredential(creds) @@ -215,7 +245,7 @@ def start_slice(api, xrn, creds): for aggregate in api.aggregates: # prevent infinite loop. Dont send request back to caller # unless the caller is the aggregate's SM - if caller_hrn == aggrgate and aggregate != api.hrn: + if caller_hrn == aggregate and aggregate != api.hrn: continue server = api.aggregates[aggregate] threads.run(server.Start, xrn, credential) @@ -223,9 +253,11 @@ def start_slice(api, xrn, creds): return 1 def stop_slice(api, xrn, creds): + hrn, type = urn_to_hrn(xrn) + # get the callers hrn valid_cred = api.auth.checkCredentials(creds, 'stopslice', hrn)[0] - caller_hrn = valid_cred.get_gid_caller().get_hrn() + caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() # attempt to use delegated credential first credential = api.getDelegatedCredential(creds) @@ -235,7 +267,7 @@ def stop_slice(api, xrn, creds): for aggregate in api.aggregates: # prevent infinite loop. Dont send request back to caller # unless the caller is the aggregate's SM - if caller_hrn == aggrgate and aggregate != api.hrn: + if caller_hrn == aggregate and aggregate != api.hrn: continue server = api.aggregates[aggregate] threads.run(server.Stop, xrn, credential) @@ -260,17 +292,22 @@ def status(api, xrn, creds): """ return 1 -def get_slices(api, creds): +# Thierry : caching at the slicemgr level makes sense to some extent +caching=True +#caching=False +def ListSlices(api, creds, call_id): + + if Callids().already_handled(call_id): return [] # look in cache first - if api.cache: + if caching and api.cache: slices = api.cache.get('slices') if slices: return slices # get the callers hrn - valid_cred = api.auth.checkCredentials(creds, 'listslices', hrn)[0] - caller_hrn = valid_cred.get_gid_caller().get_hrn() + valid_cred = api.auth.checkCredentials(creds, 'listslices', None)[0] + caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() # attempt to use delegated credential first credential = api.getDelegatedCredential(creds) @@ -281,10 +318,10 @@ def get_slices(api, creds): for aggregate in api.aggregates: # prevent infinite loop. Dont send request back to caller # unless the caller is the aggregate's SM - if caller_hrn == aggrgate and aggregate != api.hrn: + if caller_hrn == aggregate and aggregate != api.hrn: continue server = api.aggregates[aggregate] - threads.run(server.ListSlices, credential) + threads.run(server.ListSlices, credential, call_id) # combime results results = threads.get_results() @@ -293,34 +330,33 @@ def get_slices(api, creds): slices.extend(result) # cache the result - if api.cache: + if caching and api.cache: api.cache.add('slices', slices) return slices - -def get_rspec(api, creds, options): - + + +def ListResources(api, creds, options, call_id): + + if Callids().already_handled(call_id): return "" + # get slice's hrn from options - xrn = options.get('geni_slice_urn', None) - hrn, type = urn_to_hrn(xrn) + xrn = options.get('geni_slice_urn', '') + (hrn, type) = urn_to_hrn(xrn) - # get hrn of the original caller - origin_hrn = options.get('origin_hrn', None) - if not origin_hrn: - origin_hrn = Credential(string=creds[0]).get_gid_caller().get_hrn() - - # look in cache first - if api.cache and not xrn: - rspec = api.cache.get('nodes') + # get the rspec's return format from options + rspec_version = RSpecVersion(options.get('rspec_version', 'SFA 1')) + version_string = "rspec_%s" % (rspec_version.get_version_name()) + + # look in cache first + if caching and api.cache and not xrn: + rspec = api.cache.get(version_string) if rspec: return rspec - hrn, type = urn_to_hrn(xrn) - rspec = None - # get the callers hrn valid_cred = api.auth.checkCredentials(creds, 'listnodes', hrn)[0] - caller_hrn = valid_cred.get_gid_caller().get_hrn() + caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn() # attempt to use delegated credential first credential = api.getDelegatedCredential(creds) @@ -330,46 +366,80 @@ def get_rspec(api, creds, options): for aggregate in api.aggregates: # prevent infinite loop. Dont send request back to caller # unless the caller is the aggregate's SM - if caller_hrn == aggrgate and aggregate != api.hrn: + if caller_hrn == aggregate and aggregate != api.hrn: continue # get the rspec from the aggregate server = api.aggregates[aggregate] my_opts = copy(options) my_opts['geni_compressed'] = False - threads.run(server.ListResources, credential, my_opts) - #threads.run(server.get_resources, cred, xrn, origin_hrn) + threads.run(server.ListResources, credential, my_opts, call_id) results = threads.get_results() - # combine the rspecs into a single rspec - for agg_rspec in results: + #results.append(open('/root/protogeni.rspec', 'r').read()) + rspec = SfaRSpec() + for result in results: try: - tree = etree.parse(StringIO(agg_rspec)) - except etree.XMLSyntaxError: - message = str(agg_rspec) + ": " + str(sys.exc_info()[1]) - raise InvalidRSpec(message) - - root = tree.getroot() - if root.get("type") in ["SFA"]: - if rspec == None: - rspec = root + tmp_rspec = parse_rspec(result) + if isinstance(tmp_rspec, SfaRSpec): + rspec.merge(result) + elif isinstance(tmp_rspec, PGRSpec): + rspec.merge(RSpecConverter.to_sfa_rspec(result)) else: - for network in root.iterfind("./network"): - rspec.append(deepcopy(network)) - for request in root.iterfind("./request"): - rspec.append(deepcopy(request)) - - rspec = etree.tostring(rspec, xml_declaration=True, pretty_print=True) + api.logger.info("SM.ListResources: invalid aggregate rspec") + except: + api.logger.info("SM.ListResources: Failed to merge aggregate rspec") + # cache the result - if api.cache and not xrn: - api.cache.add('nodes', rspec) + if caching and api.cache and not xrn: + api.cache.add(version_string, rspec.toxml()) - return rspec + return rspec.toxml() + +# first draft at a merging SliverStatus +def SliverStatus(api, slice_xrn, creds, call_id): + if Callids().already_handled(call_id): return {} + # attempt to use delegated credential first + credential = api.getDelegatedCredential(creds) + if not credential: + credential = api.getCredential() + threads = ThreadManager() + for aggregate in api.aggregates: + server = api.aggregates[aggregate] + threads.run (server.SliverStatus, slice_xrn, credential, call_id) + results = threads.get_results() + + # get rid of any void result - e.g. when call_id was hit where by convention we return {} + results = [ result for result in results if result and result['geni_resources']] + + # do not try to combine if there's no result + if not results : return {} + + # otherwise let's merge stuff + overall = {} + + # mmh, it is expected that all results carry the same urn + overall['geni_urn'] = results[0]['geni_urn'] + + # consolidate geni_status - simple model using max on a total order + states = [ 'ready', 'configuring', 'failed', 'unknown' ] + # hash name to index + shash = dict ( zip ( states, range(len(states)) ) ) + def combine_status (x,y): + return shash [ max (shash(x),shash(y)) ] + overall['geni_status'] = reduce (combine_status, [ result['geni_status'] for result in results], 'ready' ) + + # {'ready':0,'configuring':1,'failed':2,'unknown':3} + # append all geni_resources + overall['geni_resources'] = \ + reduce (lambda x,y: x+y, [ result['geni_resources'] for result in results] , []) + + return overall def main(): r = RSpec() r.parseFile(sys.argv[1]) rspec = r.toDict() - create_slice(None,'plc.princeton.tmacktestslice',rspec) + CreateSliver(None,'plc.princeton.tmacktestslice',rspec,'create-slice-tmacktestslice') if __name__ == "__main__": main()