author | Tero Marttila <terom@paivola.fi> |
Tue, 21 Feb 2012 16:28:48 +0200 | |
changeset 25 | d2bee6bc173a |
parent 12 | fbfdde7326f4 |
child 28 | 82bcde9e21c4 |
permissions | -rwxr-xr-x |
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d5fd342015d3
initial rsync-lvm-server script
Tero Marttila <terom@paivola.fi>
parents:
diff
changeset
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#!/usr/bin/python |
d5fd342015d3
initial rsync-lvm-server script
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parents:
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""" |
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SSH authorized_keys command="..." wrapper for rsync. |
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""" |
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23371d26fdd0
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Tero Marttila <terom@paivola.fi>
parents:
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from pvl.backup.rsync import RSyncCommandFormatError |
23371d26fdd0
split up into pvl.backup package
Tero Marttila <terom@paivola.fi>
parents:
4
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from pvl.backup.invoke import InvokeError |
23371d26fdd0
split up into pvl.backup package
Tero Marttila <terom@paivola.fi>
parents:
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from pvl.backup import rsync |
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23371d26fdd0
split up into pvl.backup package
Tero Marttila <terom@paivola.fi>
parents:
4
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import optparse |
23371d26fdd0
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Tero Marttila <terom@paivola.fi>
parents:
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import os |
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d5fd342015d3
initial rsync-lvm-server script
Tero Marttila <terom@paivola.fi>
parents:
diff
changeset
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import logging |
d5fd342015d3
initial rsync-lvm-server script
Tero Marttila <terom@paivola.fi>
parents:
diff
changeset
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d5fd342015d3
initial rsync-lvm-server script
Tero Marttila <terom@paivola.fi>
parents:
diff
changeset
|
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log = logging.getLogger() |
d5fd342015d3
initial rsync-lvm-server script
Tero Marttila <terom@paivola.fi>
parents:
diff
changeset
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# command-line options |
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options = None |
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def parse_options (argv) : |
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""" |
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Parse command-line arguments. |
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""" |
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parser = optparse.OptionParser( |
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prog = argv[0], |
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# module docstring |
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description = __doc__, |
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) |
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# logging |
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general = optparse.OptionGroup(parser, "General Options") |
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general.add_option('-q', '--quiet', dest='loglevel', action='store_const', const=logging.WARNING, help="Less output") |
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general.add_option('-v', '--verbose', dest='loglevel', action='store_const', const=logging.INFO, help="More output") |
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general.add_option('-D', '--debug', dest='loglevel', action='store_const', const=logging.DEBUG, help="Even more output") |
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parser.add_option_group(general) |
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# |
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parser.add_option('-c', '--command', metavar='CMD', default=os.environ.get('SSH_ORIGINAL_COMMAND'), |
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help="rsync command to execute") |
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parser.add_option('-R', '--readonly', action='store_true', default=False, |
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help="restrict to read/source mode") |
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parser.add_option('-P', '--restrict-path', metavar='PATH', default=False, |
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help="restrict to given path prefix") |
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# defaults |
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parser.set_defaults( |
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loglevel = logging.WARNING, |
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) |
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# parse |
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options, args = parser.parse_args(argv[1:]) |
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# configure |
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logging.basicConfig( |
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format = '%(levelname)6s %(name)s : %(funcName)s : %(message)s', |
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level = options.loglevel, |
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) |
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return options, args |
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def rsync_wrapper (command, restrict='lvm:') : |
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""" |
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Wrap given rsync command. |
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Parses the command, the source path, and then executes rsync within the source path (which may be a special |
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pseudo-path with additional handling). |
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""" |
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try : |
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# parse the rsync command sent by the client |
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parents:
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rsync_cmd, rsync_options, source_path, dest_path = rsync.parse_command(command, |
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restrict_readonly = options.readonly, |
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) |
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except RSyncCommandFormatError, e: |
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log.error("invalid rsync command: %r: %s", command, e) |
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return 2 |
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# XXX: the real path is always given second.. |
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path = dest_path |
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try : |
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# parse the source path as given by the client, may be a real path or pseudo-path |
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parents:
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source = rsync.parse_source(path, |
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restrict_path = options.restrict_path, |
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) |
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except RSyncCommandFormatError, e: |
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log.error("invalid rsync source: %r: %s", path, e) |
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return 2 |
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try : |
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# run rsync within the source (may perform additional stuff like snapshotting...) |
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source.execute(rsync_options) |
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except InvokeError, e: |
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log.error("%s failed: %d", e.cmd, e.exit) |
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return e.exit |
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# ok |
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return 0 |
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def main (argv) : |
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global options |
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# global options + args |
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options, args = parse_options(argv) |
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# args |
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if args : |
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log.error("No arguments are handled") |
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return 2 |
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fbfdde7326f4
rsync-snapshot: manage --link-dest'd interval snapshots
Tero Marttila <terom@paivola.fi>
parents:
11
diff
changeset
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# command required |
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if not options.command: |
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log.error("SSH_ORIGINAL_COMMAND not given") |
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return 2 |
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try : |
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# handle it |
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return rsync_wrapper(options.command) |
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except Exception, e: |
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log.error("Internal error:", exc_info=e) |
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return 3 |
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# ok |
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return 0 |
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d5fd342015d3
initial rsync-lvm-server script
Tero Marttila <terom@paivola.fi>
parents:
diff
changeset
|
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d5fd342015d3
initial rsync-lvm-server script
Tero Marttila <terom@paivola.fi>
parents:
diff
changeset
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if __name__ == '__main__' : |
d5fd342015d3
initial rsync-lvm-server script
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parents:
diff
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import sys |
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d5fd342015d3
initial rsync-lvm-server script
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parents:
diff
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sys.exit(main(sys.argv)) |
d5fd342015d3
initial rsync-lvm-server script
Tero Marttila <terom@paivola.fi>
parents:
diff
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