X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Fserver%2Fsfa_component_setup.py;h=6d74468ff88e4688e795b99087de2651abd931a8;hb=57b6a99255d4a88be9c0f910f8524677e34ff4bc;hp=779b8bf717ac4ae91625e3e17e2709217f1f0cd8;hpb=94012c906302b55c7444bd8dcc6ebeea4f00a4a7;p=sfa.git diff --git a/sfa/server/sfa_component_setup.py b/sfa/server/sfa_component_setup.py index 779b8bf7..6d74468f 100755 --- a/sfa/server/sfa_component_setup.py +++ b/sfa/server/sfa_component_setup.py @@ -3,14 +3,30 @@ import sys import os import tempfile from optparse import OptionParser + +from sfa.util.faults import ConnectionKeyGIDMismatch from sfa.util.config import Config import sfa.util.xmlrpcprotocol as xmlrpcprotocol -import sfa.util.misc as misc +from sfa.util.plxrn import hrn_to_pl_slicename, slicename_to_hrn from sfa.trust.certificate import Keypair, Certificate from sfa.trust.credential import Credential from sfa.trust.gid import GID from sfa.trust.hierarchy import Hierarchy +KEYDIR = "/var/lib/sfa/" +CONFDIR = "/etc/sfa/" + +def handle_gid_mismatch_exception(f): + def wrapper(*args, **kwds): + try: return f(*args, **kwds) + except ConnectionKeyGIDMismatch: + # clean regen server keypair and try again + print "cleaning keys and trying again" + clean_key_cred() + return f(args, kwds) + + return wrapper + def get_server(url=None, port=None, keyfile=None, certfile=None,verbose=False): """ returns an xmlrpc connection to the service a the specified @@ -45,13 +61,33 @@ def create_default_dirs(): for dir in all_dirs: if not os.path.exists(dir): os.makedirs(dir) + +def has_node_key(): + key_file = KEYDIR + os.sep + 'server.key' + return os.path.exists(key_file) + +def clean_key_cred(): + """ + remove the existing keypair and cred and generate new ones + """ + files = ["server.key", "server.cert", "node.cred"] + for f in files: + filepath = KEYDIR + os.sep + f + if os.path.isfile(filepath): + os.unlink(f) + + # install the new key pair + # get_credential will take care of generating the new keypair + # and credential + get_credential() + def get_node_key(registry=None, verbose=False): # this call requires no authentication, # so we can generate a random keypair here subject="component" - keyfile = tempfile.mktemp() - certfile = tempfile.mktemp() + (kfd, keyfile) = tempfile.mkstemp() + (cfd, certfile) = tempfile.mkstemp() key = Keypair(create=True) key.save_to_file(keyfile) cert = Certificate(subject=subject) @@ -74,8 +110,9 @@ def create_server_keypair(keyfile=None, certfile=None, hrn="component", verbose= cert.set_pubkey(key) cert.sign() cert.save_to_file(certfile, save_parents=True) - -def get_credential(registry=None, verbose=False): + +@handle_gid_mismatch_exception +def get_credential(registry=None, force=False, verbose=False): config = Config() hierarchy = Hierarchy() key_dir= hierarchy.basedir @@ -83,7 +120,7 @@ def get_credential(registry=None, verbose=False): config_dir = config.config_path credfile = data_dir + os.sep + 'node.cred' # check for existing credential - if os.path.exists(credfile): + if not force and os.path.exists(credfile): if verbose: print "Loading Credential from %(credfile)s " % locals() cred = Credential(filename=credfile).save_to_string(save_parents=True) @@ -110,11 +147,12 @@ def get_credential(registry=None, verbose=False): registry = get_server(url=registry, keyfile=keyfile, certfile=certfile) cert = Certificate(filename=certfile) cert_str = cert.save_to_string(save_parents=True) - cred = registry.get_self_credential(cert_str, 'node', hrn) + cred = registry.GetSelfCredential(cert_str, 'node', hrn) Credential(string=cred).save_to_file(credfile, save_parents=True) return cred +@handle_gid_mismatch_exception def get_trusted_certs(registry=None, verbose=False): """ refresh our list of trusted certs. @@ -142,8 +180,9 @@ def get_trusted_certs(registry=None, verbose=False): for gid_str in trusted_certs: gid = GID(string=gid_str) gid.decode() - trusted_gid_names.append(gid.get_hrn()) - gid_filename = trusted_certs_dir + os.sep + gid.get_hrn() + ".gid" + relative_filename = gid.get_hrn() + ".gid" + trusted_gid_names.append(relative_filename) + gid_filename = trusted_certs_dir + os.sep + relative_filename if verbose: print "Writing GID for %s as %s" % (gid.get_hrn(), gid_filename) gid.save_to_file(gid_filename, save_parents=True) @@ -156,6 +195,7 @@ def get_trusted_certs(registry=None, verbose=False): print "Removing old gid ", gid_name os.unlink(trusted_certs_dir + os.sep + gid_name) +@handle_gid_mismatch_exception def get_gids(registry=None, verbose=False): """ Get the gid for all instantiated slices on this node and store it @@ -183,20 +223,35 @@ def get_gids(registry=None, verbose=False): # get a list of slices on this node from sfa.plc.api import ComponentAPI api = ComponentAPI() - slicenames = api.nodemanager.GetXIDs().keys() - slicename_to_hrn = lambda name: ".".join([interface_hrn, name.replace('_', '.')]) - hrns = map(slicename_to_hrn, slicenames) + xids_tuple = api.nodemanager.GetXIDs() + slices = eval(xids_tuple[1]) + slicenames = slices.keys() + # generate a list of slices that dont have gids installed + slices_without_gids = [] + for slicename in slicenames: + if not os.path.isfile("/vservers/%s/etc/slice.gid" % slicename) \ + or not os.path.isfile("/vservers/%s/etc/node.gid" % slicename): + slices_without_gids.append(slicename) + + # convert slicenames to hrns + hrns = [slicename_to_hrn(interface_hrn, slicename) \ + for slicename in slices_without_gids] + + # exit if there are no gids to install + if not hrns: + return + if verbose: print "Getting gids for slices on this node from registry" # get the gids # and save them in the right palce - records = registry.get_gids(cred, hrns) + records = registry.GetGids(hrns, cred) for record in records: # if this isnt a slice record skip it if not record['type'] == 'slice': continue - slicename = misc.hrn_to_pl_slicename(record['hrn']) + slicename = hrn_to_pl_slicename(record['hrn']) # if this slice isnt really instatiated skip it if not os.path.exists("/vservers/%(slicename)s" % locals()): continue