#!/usr/bin/env python # Copyright (c) 2010-2012 OpenStack Foundation # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or # implied. # See the License for the specific language governing permissions and # limitations under the License. import sys from optparse import OptionParser from os.path import basename from swift.common.ring import Ring from swift.common.storage_policy import reload_storage_policies from swift.common.utils import set_swift_dir from swift.cli.info import (parse_get_node_args, print_item_locations, InfoSystemExit) if __name__ == '__main__': usage = ''' Shows the nodes responsible for the item specified. Usage: %prog [-a] [ []] Or: %prog [-a] -p partition Or: %prog [-a] -P policy_name [ []] Or: %prog [-a] -P policy_name -p partition Note: account, container, object can also be a single arg separated by / Example: $ %prog -a /etc/swift/account.ring.gz MyAccount Partition 5743883 Hash 96ae332a60b58910784e4417a03e1ad0 10.1.1.7:8000 sdd1 10.1.9.2:8000 sdb1 10.1.5.5:8000 sdf1 10.1.5.9:8000 sdt1 # [Handoff] ''' parser = OptionParser(usage) parser.add_option('-a', '--all', action='store_true', help='Show all handoff nodes') parser.add_option('-p', '--partition', metavar='PARTITION', help='Show nodes for a given partition') parser.add_option('-P', '--policy-name', dest='policy_name', help='Specify which policy to use') parser.add_option('-d', '--swift-dir', default='/etc/swift', dest='swift_dir', help='Path to swift directory') options, args = parser.parse_args() if set_swift_dir(options.swift_dir): reload_storage_policies() try: ring_path, args = parse_get_node_args(options, args) except InfoSystemExit as e: parser.print_help() sys.exit('ERROR: %s' % e) ring = ring_name = None if ring_path: ring_name = basename(ring_path)[:-len('.ring.gz')] ring = Ring(ring_path) try: print_item_locations(ring, ring_name, *args, **vars(options)) except InfoSystemExit: sys.exit(1)