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#!/usr/bin/python
# Copyright (c) 2009-2010 Gluster, Inc. <http://www.gluster.com>
# This file is part of GlusterFS.
# GlusterFS is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 3 of the License,
# or (at your option) any later version.
# GlusterFS is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.
import getopt, sys, os, string
from optparse import OptionParser,OptionGroup,make_option
prefix = "@prefix@"
if not (prefix + "/share/glusterfs") in sys.path:
sys.path.append(prefix + "/share/glusterfs")
from CreateVolfile import *
from Common import *
def generate_volume_files ():
usage_str = "%s%s" % ("%prog: -n <VOLUMENAME> -t <TRANSPORT> -p <NUMBER> -a <AUTH> ",
"-r <TYPE> [--num-replica N] [--num-stripe N]")
version_str = "%prog 3.0"
desc_str = "A tool to generate volume files for GlusterFS."
parse = OptionParser(usage=usage_str, version=version_str, description=desc_str)
# Basic option list
group = OptionGroup(parse, "Basic Options")
group.add_option("-n", "--name", dest="volume_name",
help="<volume-name>")
group.add_option("-t", "--transport", dest="transport_type",
default="tcp", help="tcp,ib-verbs default: tcp")
group.add_option("-p", "--port", type="int",
dest="port", default=6969,
help="<port> number")
group.add_option("--auth", dest="auth_param", default="*",
help="comma seperated ip range")
group.add_option("-r", "--raid", type="int", dest="raid_type",
help="0|1")
group.add_option("-c", "--conf-dir", dest="conf_dir",
default=os.getcwd(),
help="output directory for volume files")
group.add_option("--nfs", action="store_true", dest="need_nfs",
default=False, help="enable nfs translator")
parse.add_option_group(group)
# Advanced option list
group = OptionGroup(parse, "Advanced Options")
group.add_option("--ibdev", type="int", dest="ib_dev",
default=1, help="Infiniband device number <N>")
group.add_option("--volume-size-server", dest="size_server",
help="volume size for each server")
group.add_option("--volume-size-client", dest="size_client",
help="volume size for each client")
group.add_option("--safe-mode", action="store_true",
dest="enable_safe_mode", default=False,
help="generate volume files in safe mode")
group.add_option("--num-replica", type="int", dest="num_replica",
help="number of file replica needed")
group.add_option("--num-stripe", type="int", dest="num_stripe",
help="number of stripe count needed")
parse.add_option_group(group)
# Changes for Dynamic Volume Manager
#group = OptionGroup(parse, "Dynamic Volume Options")
#group.add_option("--add-server", dest="add_server_args",
# help="Add server to existing volume")
#group.add_option("--migrate", dest="migrate_server_args",
# help="Migrate servers from existing volumes")
#parse.add_option_group(group)
(options, args) = parse.parse_args()
if options.volume_name is None:
print "Error: volume name is mandatory, please provide volume name"
raise ValueError
if options.need_nfs and options.size_client:
print "Error: Currently quota not supported with native NFS, please use server side instead"
raise ValueError
if options.transport_type:
transports = options.transport_type.split(',')
for transport in transports:
if (transport != "tcp" and transport != "ib-verbs"):
print "Error: --transport: option " + transport + \
" is not valid transport type"
raise ValueError
if options.raid_type:
if (options.raid_type != 1 and options.raid_type != 0):
print "Error: --raid: option " + str(options.raid_type) + " is not valid raid type"
raise ValueError
if options.conf_dir:
if not os.path.isdir(options.conf_dir):
print "Specified directory %s doesn't exist" % options.conf_dir
raise ValueError
server_dict = {}
# Dynamic Volume Manager
#if options.add_server_args:
# add_server_list = (options.add_server_args).strip().split()
# check_duplicate_entry(add_server_list)
# old_server_list = get_old_server_args(list_export_vols(options.conf_dir,
# options.volume_name),
# options.conf_dir)
# for new_server in add_server_list:
# old_server_list.append(new_server)
# server_dict = args2dict(old_server_list)
# server_array = args2array(old_server_list)
# if len (server_dict.keys()) == 0:
# print "Error: no servers provided, please provide atleast one server"
# raise ValueError
#else:
check_duplicate_entry(args)
server_dict = args2dict(args)
server_array = args2array(args)
if len (server_dict.keys()) == 0:
print "Error: no servers provided, please provide atleast one server"
raise ValueError
if options.num_replica is None:
options.num_replica = 2
if options.num_stripe is None:
options.num_stripe = 4
if options.num_replica < 2:
print "--num-replica option (%d) is not valid" % options.num_replica
if options.num_stripe < 2:
print "--num-stripe option (%d) is not valid" % options.num_stripe
if options.raid_type == 1:
if (len(server_array) % options.num_replica) != 0:
print "raid type (%d) and number of volumes (%d) invalid" % (options.raid_type,
len(server_array))
raise ValueError
if options.raid_type == 0:
if (len(server_array) % options.num_stripe) != 0:
print "raid type (%d) and number of volumes (%d) invalid" % (options.raid_type,
len(server_array))
raise ValueError
for server in server_dict.keys():
create_exp = CreateVolfile (server_dict, server,
None, transports,
options, None)
try:
create_exp.create_export_volfile ()
except IOError, (errno, strerror):
print "Got %s creating server volfiles for %s" % (strerror, server)
for transport in transports:
create_mnt = CreateVolfile (server_dict, None,
transport, transports,
options, server_array)
try:
create_mnt.create_mount_volfile ()
except IOError, (errno, strerror):
print "Got %s creating client volfiles for transport '%s'" % (strerror, transport)
def main ():
try:
generate_volume_files()
except ValueError:
sys.exit(1)
main()
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