def list_volume_coordinators( config, volume_id ):
"""
Find all the gateways for a given volume that can coordinate writes
"""
gateway_cert_paths = certs.list_gateway_cert_paths( config )
ret = []
for path in gateway_cert_paths:
gateway_cert = None
try:
with open(path, "r") as f:
cert_bin = f.read()
gateway_cert = ms_pb2.ms_gateway_cert()
gateway_cert.ParseFromString( cert_bin )
except Exception, e:
log.exception(e)
log.error("Failed to load '%s'" % path)
return None
if gateway_cert.volume_id != volume_id:
continue
if (gateway_cert.caps & (ms_pb2.ms_gateway_cert.CAP_COORDINATE)) == 0:
continue
log.debug("%s can coordinate" % gateway_cert.name)
ret.append( gateway_cert )
def list_volume_gateways_by_host(config, volume_id, hostname):
"""
Find all gateway certs in a volume with the given hostname.
Only applies to gateways generated by this amd server.
"""
gateway_cert_paths = certs.list_gateway_cert_paths(config)
ret = []
for path in gateway_cert_paths:
gateway_cert = None
try:
with open(path, "r") as f:
cert_bin = f.read()
gateway_cert = ms_pb2.ms_gateway_cert()
gateway_cert.ParseFromString(cert_bin)
except Exception, e:
log.exception(e)
log.error("Failed to load '%s'" % path)
return None
if gateway_cert.volume_id != volume_id:
continue
if gateway_cert.host != hostname:
continue
log.debug("%s on %s" % (gateway_cert.name, hostname))
ret.append(gateway_cert)
def list_volume_coordinators(config, volume_id):
"""
Find all the gateways for a given volume that can coordinate writes
"""
gateway_cert_paths = certs.list_gateway_cert_paths(config)
ret = []
for path in gateway_cert_paths:
gateway_cert = None
try:
with open(path, "r") as f:
cert_bin = f.read()
gateway_cert = ms_pb2.ms_gateway_cert()
gateway_cert.ParseFromString(cert_bin)
except Exception, e:
log.exception(e)
log.error("Failed to load '%s'" % path)
return None
if gateway_cert.volume_id != volume_id:
continue
if (gateway_cert.caps & (ms_pb2.ms_gateway_cert.CAP_COORDINATE)) == 0:
continue
log.debug("%s can coordinate" % gateway_cert.name)
ret.append(gateway_cert)
def list_volume_gateways_by_host(config, volume_id, hostname):
"""
Find all gateway certs in a volume with the given hostname.
Only applies to gateways generated by this amd server.
"""
gateway_cert_paths = certs.list_gateway_cert_paths(config)
ret = []
for path in gateway_cert_paths:
gateway_cert = None
try:
with open(path, "r") as f:
cert_bin = f.read()
gateway_cert = ms_pb2.ms_gateway_cert()
gateway_cert.ParseFromString(cert_bin)
except Exception, e:
log.exception(e)
log.error("Failed to load '%s'" % path)
return None
if gateway_cert.volume_id != volume_id:
continue
if gateway_cert.host != hostname:
continue
log.debug("%s on %s" % (gateway_cert.name, hostname))
ret.append(gateway_cert)
def list_gateways_by_type( config, volume_id, gateway_type_str ):
"""
Find all the gateways for a given volume with a particular type.
The type should be a type alias, like "UG" or "RG" or "AG"
Return the list of gateway certs on success.
Raise on error
"""
gateway_cert_paths = certs.list_gateway_cert_paths( config )
ret = []
type_aliases = object_stub.load_gateway_type_aliases( config )
if type_aliases is None:
raise Exception("Missing gateway type aliases")
gateway_type = type_aliases.get(gateway_type_str, None)
if gateway_type is None:
raise ValueError("Unknown gateway type alias '%s'" % gateway_type_str )
for path in gateway_cert_paths:
gateway_cert = None
try:
with open(path, "r") as f:
cert_bin = f.read()
gateway_cert = ms_pb2.ms_gateway_cert()
gateway_cert.ParseFromString( cert_bin )
except Exception, e:
log.exception(e)
log.error("Failed to load '%s'" % path)
return None
if gateway_cert.volume_id != volume_id:
continue
if gateway_cert.gateway_type != gateway_type:
continue
log.debug("%s is type %s" % (gateway_cert.name, gateway_type))
ret.append( gateway_cert )
def list_gateways_by_type(config, volume_id, gateway_type_str):
"""
Find all the gateways for a given volume with a particular type.
The type should be a type alias, like "UG" or "RG" or "AG"
Return the list of gateway certs on success.
Raise on error
"""
gateway_cert_paths = certs.list_gateway_cert_paths(config)
ret = []
type_aliases = object_stub.load_gateway_type_aliases(config)
if type_aliases is None:
raise Exception("Missing gateway type aliases")
gateway_type = type_aliases.get(gateway_type_str, None)
if gateway_type is None:
raise ValueError("Unknown gateway type alias '%s'" % gateway_type_str)
for path in gateway_cert_paths:
gateway_cert = None
try:
with open(path, "r") as f:
cert_bin = f.read()
gateway_cert = ms_pb2.ms_gateway_cert()
gateway_cert.ParseFromString(cert_bin)
except Exception, e:
log.exception(e)
log.error("Failed to load '%s'" % path)
return None
if gateway_cert.volume_id != volume_id:
continue
if gateway_cert.gateway_type != gateway_type:
continue
log.debug("%s is type %s" % (gateway_cert.name, gateway_type))
ret.append(gateway_cert)