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813
by William Grant
Merge jails-redux branch. We now use aufs rather than hardlinking tens |
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#!/usr/bin/env python
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# IVLE - Informatics Virtual Learning Environment
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# Copyright (C) 2007-2008 The University of Melbourne
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# Program: MountAllUsers
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# Author: William Grant
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# Date: 4/7/2008
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# Script to UnionFS-mount jails for all users on the system.
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# Requires root to run.
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import sys |
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import os |
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import common.db |
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import os.path |
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import conf |
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import optparse |
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import logging |
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p = optparse.OptionParser() |
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p.add_option('--verbose', '-v', action='store_true') |
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p.add_option('--unmount', '-u', action='store_true') |
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options, arguments = p.parse_args() |
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if options.verbose: |
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logging.basicConfig(format='%(asctime)s %(levelname)s %(message)s', |
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level=logging.DEBUG) |
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else: |
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logging.basicConfig(format='%(asctime)s %(levelname)s %(message)s', |
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level=logging.WARNING) |
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if os.getuid() != 0: |
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print >> sys.stderr, "%s must be run as root" % sys.argv[0] |
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sys.exit(1) |
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try: |
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db = common.db.DB() |
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list = db.get_users() |
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res = db.get_all('login', ['login', 'unixid']) |
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def repack(flds): |
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return (flds['login'], flds['unixid']) |
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uids = dict(map(repack,res)) |
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except Exception, message: |
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logging.error(str(message)) |
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sys.exit(1) |
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logging.info("mass aufs mount started") |
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list.sort(key=lambda user: user.login) |
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for user in list: |
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login = user.login |
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# This is where we'll mount to...
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destdir = os.path.join(conf.jail_base, login) |
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# ... and this is where we'll get the user bits.
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srcdir = os.path.join(conf.jail_src_base, login) |
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try: |
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if not options.unmount: |
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if not os.path.exists(srcdir): |
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logging.info("user %s doesn't have a jail - skipping" % login) |
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continue
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if not os.path.exists(destdir): |
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logging.debug("user %s had no mountpoint - creating" % login) |
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os.mkdir(destdir) |
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if os.system('/bin/mount -t aufs -o dirs=%s:%s=ro none %s' |
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% (srcdir,conf.jail_system,destdir)) == 0: |
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logging.info("mounted user %s's jail." % login) |
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else: |
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logging.error("failed to mount user %s's jail!" % login) |
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else: |
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os.system('/bin/umount ' + destdir) |
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logging.info("unmounted user %s's jail." % login) |
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except Exception, message: |
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logging.warning(str(message)) |
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continue
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logging.info("mount completed successfully") |