1dfa41dada
Now that we can have null bytes in Swift paths, we need a way for
operators to be able to locate such containers and objects. Our usual
trick of making sure the name is properly quoted for the shell won't
suffice; running something like
swift-get-nodes /etc/swift/container.ring.gz $'AUTH_test/\0versions\0container'
has the path get cut off after "AUTH_test/" because of how argv works.
So, add a new option, --quoted, to let operators indicate that they
already quoted the path.
Drive-bys:
* If account, container, or object are explicitly blank, treat them
as though they were not provided. This provides better errors when
account is explicitly blank, for example.
* If account, container, or object are not provided or explicitly
blank, skip printing them. This resolves abiguities about things
like objects whose name is actually "None".
* When displaying account, container, and object, quote them (since
they may contain newlines or other control characters).
Change-Id: I3d10e121b403de7533cc3671604bcbdecb02c795
Related-Change: If912f71d8b0d03369680374e8233da85d8d38f85
Closes-Bug: #1875734
Closes-Bug: #1875735
Closes-Bug: #1875736
Related-Bug: #1791302
77 lines
2.8 KiB
Python
Executable File
77 lines
2.8 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (c) 2010-2012 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import sys
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from optparse import OptionParser
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from os.path import basename
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from swift.common.ring import Ring
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from swift.common.storage_policy import reload_storage_policies
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from swift.common.utils import set_swift_dir
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from swift.cli.info import (parse_get_node_args, print_item_locations,
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InfoSystemExit)
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if __name__ == '__main__':
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usage = '''
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Shows the nodes responsible for the item specified.
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Usage: %prog [-a] <ring.gz> <account> [<container> [<object>]]
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Or: %prog [-a] <ring.gz> -p partition
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Or: %prog [-a] -P policy_name <account> [<container> [<object>]]
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Or: %prog [-a] -P policy_name -p partition
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Note: account, container, object can also be a single arg separated by /
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Example:
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$ %prog -a /etc/swift/account.ring.gz MyAccount
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Partition 5743883
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Hash 96ae332a60b58910784e4417a03e1ad0
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10.1.1.7:8000 sdd1
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10.1.9.2:8000 sdb1
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10.1.5.5:8000 sdf1
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10.1.5.9:8000 sdt1 # [Handoff]
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'''
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parser = OptionParser(usage)
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parser.add_option('-a', '--all', action='store_true',
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help='Show all handoff nodes')
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parser.add_option('-p', '--partition', metavar='PARTITION',
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help='Show nodes for a given partition')
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parser.add_option('-P', '--policy-name', dest='policy_name',
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help='Specify which policy to use')
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parser.add_option('-d', '--swift-dir', default='/etc/swift',
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dest='swift_dir', help='Path to swift directory')
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parser.add_option('-Q', '--quoted', action='store_true',
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help='Assume swift paths are quoted')
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options, args = parser.parse_args()
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if set_swift_dir(options.swift_dir):
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reload_storage_policies()
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try:
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ring_path, args = parse_get_node_args(options, args)
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except InfoSystemExit as e:
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parser.print_help()
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sys.exit('ERROR: %s' % e)
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ring = ring_name = None
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if ring_path:
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ring_name = basename(ring_path)[:-len('.ring.gz')]
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ring = Ring(ring_path)
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try:
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print_item_locations(ring, ring_name, *args, **vars(options))
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except InfoSystemExit:
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sys.exit(1)
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