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#!/usr/bin/python
# Copyright (C) 2011 Gluster, Inc. <http://www.gluster.com>
# This file is part of Gluster Management Gateway (GlusterMG).
#
# GlusterMG 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 3 of the License,
# or (at your option) any later version.
#
# GlusterMG 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
# <http://www.gnu.org/licenses/>.
#
import os
import sys
import stat
p1 = os.path.abspath(os.path.dirname(sys.argv[0]))
p2 = "%s/common" % os.path.dirname(p1)
if not p1 in sys.path:
sys.path.append(p1)
if not p2 in sys.path:
sys.path.append(p2)
import Globals
import Utils
import DiskUtils
SIZE_TB_16 = 17179869184L
def main():
if Utils.runCommand("wget -t 1 -T 1 -q -O /dev/null %s" % Globals.AWS_WEB_SERVICE_URL) == 0:
sys.stderr.write("format device unsupported\n")
sys.exit(1)
if len(sys.argv) != 4:
sys.stderr.write("usage: %s FSTYPE MOUNT_POINT DEVICE_NAME\n" % os.path.basename(sys.argv[0]))
sys.exit(-1)
fsType = sys.argv[1]
mountPoint = sys.argv[2]
device = DiskUtils.getDevice(sys.argv[3])
deviceName = DiskUtils.getDeviceName(sys.argv[3])
if not os.path.exists(device):
sys.stderr.write("device %s not found\n" % sys.argv[3])
sys.exit(2)
try:
if not stat.S_ISBLK(os.stat(device).st_mode):
sys.stderr.write("%s is not a block device\n" % sys.argv[3])
sys.exit(3)
except OSError, e:
Utils.log("unable to get device %s mode: %s" % (device, str(e)))
sys.stderr.write("unable to get device %s mode\n" % sys.argv[3])
sys.exit(-2)
if fsType in ['ext3', 'ext4', 'ext4dev']:
deviceSize = DiskUtils.getProcPartitions()[deviceName]['Size']
if deviceSize >= SIZE_TB_16:
Utils.log("device %s, size %s is greater than %s size for fstype %s" % (device, deviceSize, SIZE_TB_16, fsType))
sys.stderr.write("size of device %s is unsupported for fstype %s\n" % (sys.argv[3], fsType))
sys.exit(4)
if DiskUtils.isDataDiskPartitionFormatted(device):
sys.stderr.write("device %s already formatted\n" % sys.argv[3])
sys.exit(5)
if os.path.exists(mountPoint):
if not os.path.isdir(mountPoint):
sys.stderr.write("mount point %s exists but not a directory" % mountPoint)
sys.exit(6)
procMounts = Utils.readFile("/proc/mounts")
if procMounts.find(" %s " % mountPoint) != -1:
sys.stderr.write("mount point %s already has a mount\n" % mountPoint)
sys.exit(7)
if procMounts.find(" %s/" % mountPoint) != -1:
sys.stderr.write("mount point %s has a submount\n" % mountPoint)
sys.exit(8)
else:
status = Utils.runCommand("mkdir -p %s" % mountPoint, output=True, root=True)
if status["Status"] != 0:
sys.stderr.write("failed to create mount point %s\n" % mountPoint)
sys.exit(9)
if fsType not in Utils.getFileSystemType():
sys.stderr.write("unsupported file system type %s\n" % fsType)
sys.exit(10)
deviceFormatLockFile = Utils.getDeviceFormatLockFile(device)
deviceFormatStatusFile = Utils.getDeviceFormatStatusFile(device)
deviceFormatOutputFile = Utils.getDeviceFormatOutputFile(device)
if os.path.exists(deviceFormatStatusFile):
Utils.log("format status file %s exists" % deviceFormatStatusFile)
line = Utils.readFile(deviceFormatStatusFile)
if not line:
sys.stderr.write("failed to read format status file %s\n" % deviceFormatStatusFile)
sys.exit(-3)
if line.strip().upper() == "COMPLETED":
sys.stderr.write("Device %s already formatted\n" % sys.argv[3])
sys.exit(11)
else:
sys.stderr.write("Formatting device %s already running\n" % sys.argv[3])
sys.exit(12)
if os.path.exists(deviceFormatLockFile):
Utils.log("lock file %s exists" % deviceFormatLockFile)
sys.stderr.write("Formatting device %s already running\n" % sys.argv[3])
sys.exit(13)
command = ["%s/format_device_background.py" % p1, fsType, mountPoint, sys.argv[3]]
Utils.runCommandBG(command)
sys.exit(0)
if __name__ == "__main__":
main()
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