ebsmount/0000755000174700017510000000000011506102123011426 5ustar useruserebsmount/man/0000755000174700017510000000000011405436737012224 5ustar useruserebsmount/man/ebsmount-udev.80000644000174700017510000000053011405436737015110 0ustar useruser.TH EBSMOUNT 8 "14 Jun 2010" .SH NAME ebsmount-udev - Triggered by udev on EBS attach and detach .SH DESCRIPTION See: /usr/share/doc/ebsmount/docs/README .SH SYNOPSIS .B ebsmount-udev .TP See: ebsmount-udev --help .SH FILES .B /etc/ebsmount.conf .SH SEE ALSO .BR ebsmount-manual(1) .SH AUTHOR Alon Swartz ebsmount/man/ebsmount-manual.10000644000174700017510000000052411405436737015416 0ustar useruser.TH EBSMOUNT 1 "14 Jun 2010" .SH NAME ebsmount-manual - Simulates udev add trigger .SH DESCRIPTION See: /usr/share/doc/ebsmount/docs/README .SH SYNOPSIS .B ebsmount-manual [-opts] .TP See: ebsmount-manual --help .SH FILES .B /etc/ebsmount.conf .SH SEE ALSO .BR ebsmount-udev(8) .SH AUTHOR Alon Swartz ebsmount/docs/0000755000174700017510000000000011506101771012366 5ustar useruserebsmount/docs/README0000644000174700017510000000433211505662637013264 0ustar useruserEBSmount: Automatically mount EC2/Eucalyptus EBS devices ======================================================== EBSmount has 2 commands: ebsmount-udev Triggered by udev on EBS attach and detach ebsmount-manual Manually mount EBS device (simulates udev add trigger) Features: - Supports Amazon EC2 and Eucalyptus EBS devices - Automatically mounts EBS devices when they are attached (via udev) - Supports formatted devices, as well as partitions - Ignores unformatted devices and unsupported filesystems - Device/partition uniquely identifiable mountpoints - Configurable mount options - Hooking scripts execution upon mount (optionally) - Convenience command for a one step format and mount - Logging Quick start: - If the EBS device is not formatted, it will not be mounted automatically. For convenience, the user can format and mount the device in one step, for example: ebsmount-manual --format=ext4 /dev/sdf Default configuration (/etc/ebsmount.conf): ENABLED=True RUNHOOKS=False MOUNTDIR=/media/ebs MOUNTOPTIONS=noatime FILESYSTEMS=ext2 ext3 ext4 LOGFILE=/var/log/ebsmount.log DEVPATHS=/devices/xen/vbd- /devices/virtio-pci/virtio Unique mountpoints: - Every EBS filesystem is mounted to its own uniquely identifiable mountpoint, based on: $(MOUNTDIR)/$(FS_UUID)[:6] - For example: /media/ebs/a1b2c3 Hooking scripts: - Once a filesystem is mounted, EBSmount will execute scripts in alpha-numeric ordering located in MOUNTPOINT/.ebsmount - Hooking scripts execution is disabled by default. To enable execution, RUNHOOKS must be set to True in /etc/ebsmount.conf Additionally, hook scripts will only be executed if they are owned by root. - The mountpoint of the device will be set in the environment for convenience, as MOUNTPOINT - This provides a very powerful mechanism. In its simplest form, the user might want to symlink the mountpoint to a more accessible path, for example: MOUNTPOINT/.ebsmount/10symlink #!/bin/bash -e target=/vol mountp=$MOUNTPOINT [ -e $target ] || ln -s $mountp $target ebsmount/docs/RelNotes-0.9.txt0000644000174700017510000000037611357315120015173 0ustar useruser================== v0.9 Release Notes ================== This is a beta release which is none-the-less feature complete as originally designed. v1.0 will be released after more rigorous testing (and potential bugfixes/tweaks) in a production setting. ebsmount/docs/RelNotes-0.91.txt0000644000174700017510000000117411431712664015260 0ustar useruser=================== v0.91 Release Notes =================== * Added Eucalypus support. - DEVPATHS have been added to ebsmount.conf * Mountpoint has changed: - OLD: $(MOUNTDIR)/$(basename PHYSDEVPATH)/$(FS_UUID)[:4] - NEW: $(MOUNTDIR)/$(FS_UUID)[:6] * Hooking script fixes: - Removed --exit-on-error - Fixed run-parts environment * Cleaned up Makefile: - Support full package installation via Makefile. - Dynamic PATH_BIN substitution in udev rules. - Updated udev rules path for Karmic+ - Removed dist target. * Updated packaging and added manpages for lintian compliance. * Misc bugfixes and refactoring. ebsmount/docs/RelNotes-0.92.txt0000644000174700017510000000014011431712664015251 0ustar useruser=================== v0.92 Release Notes =================== * added GPL and updated copyright ebsmount/docs/RelNotes-0.93.txt0000644000174700017510000000073611505665020015260 0ustar useruser=================== v0.93 Release Notes =================== * Disabled execution of hooks by default (security). - To enable, set RUNHOOKS=True in /etc/ebsmount.conf - Additionally, hook scripts won't be executed if they are not owned by root (uid and gid). * MOUNTPOINT is set in environment for hook scripts usage (convenience). * Added ext4 to FILESYSTEMS so it's supported out of the box. * Removed EBSMOUNT_CONF envvar support (left over from testing). ebsmount/docs/RelNotes-0.94.txt0000644000174700017510000000020511506101771015247 0ustar useruser=================== v0.94 Release Notes =================== * refactored/bugfix config.runhooks check and output to log if not set ebsmount/85-ebsmount.rules.in0000644000174700017510000000074411405436737015225 0ustar useruser# udev rules to trigger ebsmount-udev on ebs attach|detach # Amazon EC2 KERNEL=="sd[f-p]", SUBSYSTEM=="block", ATTRS{devtype}=="vbd", ACTION=="add", RUN+="@PATH_BIN@/ebsmount-udev add" KERNEL=="sd[f-p]", SUBSYSTEM=="block", ACTION=="remove", RUN+="@PATH_BIN@/ebsmount-udev remove" # Eucalyptus KERNEL=="vd[a-z]*", SUBSYSTEM=="block", ACTION=="add", RUN+="@PATH_BIN@/ebsmount-udev add" KERNEL=="vd[a-z]*", SUBSYSTEM=="block", ACTION=="remove", RUN+="@PATH_BIN@/ebsmount-udev remove" ebsmount/Makefile0000644000174700017510000000413511431712664013107 0ustar useruser# standard Python project Makefile progname = $(shell awk '/^Source/ {print $$2}' debian/control) name= prefix = /usr/local PATH_BIN = $(prefix)/bin PATH_ETC = $(destdir)/etc PATH_INSTALL_LIB = $(prefix)/lib/$(progname) PATH_UDEV_RULES = $(destdir)/lib/udev/rules.d all: help debug: $(foreach v, $V, $(warning $v = $($v))) @true ### Extendable targets # target: help help: @echo '=== Targets:' @echo 'install [ prefix=path/to/usr ] # default: prefix=$(value prefix)' @echo 'uninstall [ prefix=path/to/usr ]' @echo @echo 'clean' # DRY macros truepath = $(shell echo $1 | sed -e 's/^debian\/$(progname)//') libpath = $(call truepath,$(PATH_INSTALL_LIB))/$$(basename $1) subcommand = $(progname)-$$(echo $1 | sed 's|.*/||; s/^cmd_//; s/_/-/g; s/.py$$//') echo-do = echo $1; $1 # first argument: code we execute if there is just one executable module # second argument: code we execute if there is more than on executable module define with-py-executables @modules=$$(find -maxdepth 1 -type f -name '*.py' -perm -100); \ modules_len=$$(echo $$modules | wc -w); \ if [ $$modules_len = 1 ]; then \ module=$$modules; \ $(call echo-do, $1); \ elif [ $$modules_len -gt 1 ]; then \ for module in $$modules; do \ $(call echo-do, $2); \ done; \ fi; endef # set path bin in udev rules %.rules: %.rules.in sed "s|@PATH_BIN@|$(call truepath,$(PATH_BIN))|g" $< > $@ # target: install install: 85-ebsmount.rules @echo @echo \*\* CONFIG: prefix = $(prefix) \*\* @echo install -d $(PATH_BIN) $(PATH_ETC) $(PATH_INSTALL_LIB) $(PATH_UDEV_RULES) cp *.conf $(PATH_ETC) cp *.py $(PATH_INSTALL_LIB) cp *.rules $(PATH_UDEV_RULES) $(call with-py-executables, \ ln -fs $(call libpath, $$module) $(PATH_BIN)/$(progname), \ ln -fs $(call libpath, $$module) $(PATH_BIN)/$(call subcommand, $$module)) # target: uninstall uninstall: rm -rf $(PATH_INSTALL_LIB) rm -f $(PATH_ETC)/ebsmount.conf rm -f $(PATH_UDEV_RULES)/85-ebsmount.rules $(call with-py-executables, \ rm -f $(PATH_BIN)/$(progname), \ rm -f $(PATH_BIN)/$(call subcommand, $$module)) # target: clean clean: rm -f *.pyc *.pyo *.rules _$(progname) ebsmount/ebsmount.py0000644000174700017510000000617411506101261013646 0ustar useruser# Copyright (c) 2010 Alon Swartz # # This program 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 2 of # the License, or (at your option) any later version. # # This program 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 . import os from os.path import * import pwd import udevdb from executil import system from utils import config, log, is_mounted, mount def ebsmount_add(devname, mountdir): """ebs device attached""" matching_devices = [] for device in udevdb.query(): if device.name.startswith(basename(devname)): matching_devices.append(device) for device in matching_devices: devpath = join('/dev', device.name) mountpath = join(mountdir, device.env.get('ID_FS_UUID', devpath[-1])[:6]) mountoptions = ",".join(config.mountoptions.split()) hookspath = join(mountpath, ".ebsmount") filesystem = device.env.get('ID_FS_TYPE', None) if not filesystem: log(devname, "could not identify filesystem: %s" % devpath) continue if not filesystem in config.filesystems.split(): log(devname, "filesystem (%s) not supported: %s" % (filesystem,devpath)) continue if is_mounted(devpath): log(devname, "already mounted: %s" % devpath) continue mount(devpath, mountpath, mountoptions) log(devname, "mounted %s %s (%s)" % (devpath, mountpath, mountoptions)) if exists(hookspath): hooks = os.listdir(hookspath) hooks.sort() if hooks and not config.runhooks.lower() == "true": log(devname, "skipping hooks: RUNHOOKS not set to True") continue for file in hooks: fpath = join(hookspath, file) if not os.access(fpath, os.X_OK): log(devname, "skipping hook: '%s', not executable" % file) continue if not os.stat(fpath).st_uid == 0 or not os.stat(fpath).st_gid == 0: log(devname, "skipping hook: '%s', not owned root:root" % file) continue log(devname, "executing hook: %s" % file) os.environ['HOME'] = pwd.getpwuid(os.getuid()).pw_dir os.environ['MOUNTPOINT'] = mountpath system("/bin/bash --login -c '%s' 2>&1 | tee -a %s" % (fpath, config.logfile)) def ebsmount_remove(devname, mountdir): """ebs device detached""" mounted = False for d in os.listdir(mountdir): path = join(mountdir, d) if is_mounted(path): mounted = True continue os.rmdir(path) if not mounted: os.rmdir(mountdir) ebsmount/LICENSE0000644000174700017510000004313111431712664012453 0ustar useruser GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. 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It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program 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 2 of the License, or (at your option) any later version. This program 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. ebsmount/debian/0000755000174700017510000000000011405436737012673 5ustar useruserebsmount/debian/control0000644000174700017510000000102111405436737014270 0ustar useruserSource: ebsmount Section: misc Priority: optional Maintainer: Alon Swartz Build-Depends: debhelper (>> 4.2.0) Standards-Version: 3.6.1 Package: ebsmount Architecture: all Depends: python (>= 2.4), udev, turnkey-pylib Section: misc Description: Automatically mount EC2/Eucalyptus EBS devices Automatically mounts EBS (Elastic Block Storage) devices when they are attached, supports formatted devices as well as partitions, uniquely identifiable mount points, and hooking scripts execution upon mount. ebsmount/debian/rules0000755000174700017510000000121111405436737013746 0ustar useruser#! /usr/bin/make -f progname=$(shell awk '/^Source/ {print $$2}' debian/control) buildroot=debian/$(progname) prefix=$(buildroot)/usr clean: dh_clean build: mkdir -p $(prefix) install: dh_testroot dh_clean -k dh_testdir dh_installdirs dh_install $(MAKE) install prefix=$(prefix) destdir=$(buildroot) dh_link binary-indep: install dh_testdir dh_testroot dh_installdocs docs/ dh_installman man/ebsmount-manual.1 man/ebsmount-udev.8 dh_installchangelogs dh_compress dh_installdeb dh_gencontrol dh_md5sums dh_builddeb binary-arch: install binary: binary-indep binary-arch .PHONY: clean binary-indep binary-arch binary install ebsmount/debian/compat0000644000174700017510000000000211341167626014066 0ustar useruser5 ebsmount/debian/copyright0000644000174700017510000000213011405436737014622 0ustar useruserAuthor: Alon Swartz Contributors: Liraz Siri Scott Moser Shahar Evron License: Copyright (C) 2010 Alon Swartz This program 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 2 of the License, or (at your option) any later version. This program 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, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA On Debian and Ubuntu systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL file. ebsmount/ebsmount.conf0000644000174700017510000000031511505640240014136 0ustar useruser# ebsmount config file ENABLED=True RUNHOOKS=False MOUNTDIR=/media/ebs MOUNTOPTIONS=noatime FILESYSTEMS=ext2 ext3 ext4 LOGFILE=/var/log/ebsmount.log DEVPATHS=/devices/xen/vbd- /devices/virtio-pci/virtio ebsmount/cmd_manual.py0000755000174700017510000000521111431712664014120 0ustar useruser#!/usr/bin/python # Copyright (c) 2010 Alon Swartz # # This program 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 2 of # the License, or (at your option) any later version. # # This program 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 . """EBS Mount - manually mount EBS device (simulates udev add trigger) Arguments: device EBS device to mount (e.g., /dev/sdf, /dev/vda) Options: --format=FS Format device prior to mount (e.g., --format=ext3) """ import os import sys import getopt import ebsmount import executil from utils import config, is_mounted def usage(e=None): if e: print >> sys.stderr, "error: " + str(e) print >> sys.stderr, "Syntax: %s [-opts] " % sys.argv[0] print >> sys.stderr, __doc__.strip() sys.exit(1) def fatal(s): print >> sys.stderr, "error: " + str(s) sys.exit(1) def _expected_devpath(devname, devpaths): """ugly hack to test expected structure of devpath""" raw_output = executil.getoutput('udevadm info -a -n %s' % devname) for line in raw_output.splitlines(): line = line.strip() for devpath in devpaths: if line.startswith("looking at parent device '%s" % devpath): return True return False def main(): try: opts, args = getopt.gnu_getopt(sys.argv[1:], 'h', ['format=']) except getopt.GetoptError, e: usage(e) filesystem = None for opt, val in opts: if opt == '-h': usage() if opt == '--format': filesystem = val if not len(args) == 1: usage() devname = args[0] if not os.path.exists(devname): fatal("%s does not exist" % devname) if not _expected_devpath(devname, config.devpaths.split()): fatal("devpath not of expected structure, or failed lookup") if filesystem: if is_mounted(devname): fatal("%s is mounted" % devname) if not filesystem in config.filesystems.split(): fatal("%s is not supported in %s" % (filesystem, config.CONF_FILE)) executil.system("mkfs." + filesystem, "-q", devname) ebsmount.ebsmount_add(devname, config.mountdir) if __name__=="__main__": main() ebsmount/udevdb.py0000644000174700017510000000627211431712664013276 0ustar useruser# Copyright (c) 2010 Alon Swartz # # This program 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 2 of # the License, or (at your option) any later version. # # This program 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 . from executil import ExecError, getoutput class Device: """class to hold device information enumerated from udev database""" def __init__(self, s, volinfo=True): self.path = '' self.name = '' self.symlinks = [] self.env = {} self._parse_raw_data(s) if volinfo: self._get_volinfo() def _parse_raw_data(self, s): for entry in s.splitlines(): type, value = entry.split(':', 1) type = type.strip() value = value.strip() if type == "P": self.path = value continue if type == "N": self.name = value continue if type == "S": self.symlinks.append(value) continue if type == "E": name, val = value.split("=", 1) self.env[name] = val.lstrip("=") def _get_volinfo(self): if self.env.has_key('DEVTYPE') and self.env['DEVTYPE'] == 'disk': try: volume_info = getoutput('vol_id /dev/%s' % self.name) except ExecError: return for value in volume_info.splitlines(): name, val = value.split("=") if self.env.has_key(name): continue if not val: continue self.env[name] = val def query(device=None, volinfo=True): """query udev database and return device(s) information if no device is specified, all devices will be returned optionally query volume info (vol_id) on disk devices """ if device: cmd = "udevadm info --query all --name %s" % device else: cmd = "udevadm info --export-db" devices = [] for s in getoutput(cmd + " 2>/dev/null").split('\n\n'): devices.append(Device(s, volinfo)) return devices def _disk_devices(): """debug/test method to print disk devices""" devices = query() for dev in devices: if dev.env.has_key('DEVTYPE') and dev.env['DEVTYPE'] == 'disk': print '/dev/' + dev.name attrs = dev.env.keys() attrs.sort() column_len = max([ len(attr) + 1 for attr in attrs ]) for attr in attrs: name = attr + ":" print " %s %s" % (name.ljust(column_len), dev.env[attr]) print def main(): _disk_devices() #used in debugging/testing if __name__ == '__main__': main() ebsmount/cmd_udev.py0000755000174700017510000000466511431712664013622 0ustar useruser#!/usr/bin/python # Copyright (c) 2010 Alon Swartz # # This program 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 2 of # the License, or (at your option) any later version. # # This program 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 . """EBS Mount - triggered by udev on EBS attach and detach Arguments: action action trigger (add | remove) Environment variables (Amazon EC2): DEVNAME (required: e.g., /dev/sdf) PHYSDEVPATH (required: e.g., /devices/xen/vbd-2160) Environment variables (Eucalyptus): DEVNAME (required: e.g., /dev/vda) DEVPATH (required: e.g., /devices/virtio-pci/virtio0/block/vda) """ import os import sys import ebsmount from utils import log, config def usage(e=None): if e: print >> sys.stderr, "error: " + str(e) print >> sys.stderr, "Syntax: %s " % sys.argv[0] print >> sys.stderr, __doc__.strip() sys.exit(1) def fatal(s): print >> sys.stderr, "error: " + str(s) sys.exit(1) def _expected_devpath(devpath, devpaths): for s in devpaths: if devpath.startswith(s): return True return False def main(): if not len(sys.argv) == 2: usage() if not config.enabled.lower() == "true": fatal('ebsmount is not enabled (%s)' % config.CONF_FILE) action = sys.argv[1] devname = os.getenv('DEVNAME', None) devpath = os.getenv('PHYSDEVPATH', os.getenv('DEVPATH', None)) if not action in ('add', 'remove'): usage('action must be one of: add, remove') if not devname: usage('DEVNAME is required') if not devpath: usage('PHYSDEVPATH or DEVPATH is required') if not _expected_devpath(devpath, config.devpaths.split()): usage('PHYSDEVPATH/DEVPATH is not of the expected structure') # log trigger log(devname, "received %s trigger" % action) func = getattr(ebsmount, 'ebsmount_' + action) func(devname, config.mountdir) if __name__=="__main__": main() ebsmount/utils.py0000644000174700017510000000351711505652743013167 0ustar useruser# Copyright (c) 2010 Alon Swartz # # This program 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 2 of # the License, or (at your option) any later version. # # This program 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 . import os import executil from conffile import ConfFile class EBSMountConf(ConfFile): CONF_FILE = '/etc/ebsmount.conf' REQUIRED = ['enabled', 'runhooks', 'mountdir', 'mountoptions', 'filesystems', 'logfile', 'devpaths'] config = EBSMountConf() def log(devname, s): entry = "%s: %s" % (devname, s) file(config.logfile, 'a').write(entry + "\n") print entry def mkdir_parents(path, mode=0777): """mkdir 'path' recursively (I.e., equivalent to mkdir -p)""" dirs = path.split("/") for i in range(2, len(dirs) + 1): dir = "/".join(dirs[:i+1]) if os.path.isdir(dir): continue os.mkdir(dir, mode) def is_mounted(path): """test if path is mounted""" mounts = file("/proc/mounts").read() if mounts.find(path) != -1: return True return False def mount(devpath, mountpath, options=None): """mount devpath to mountpath with specified options (creates mountpath)""" if not os.path.exists(mountpath): mkdir_parents(mountpath) if options: executil.system("mount", "-o", options, devpath, mountpath) else: executil.system("mount", devpath, mountpath)