cinder-volume-setup revision 2900
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina#!/usr/bin/python2.6
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina#
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# Licensed under the Apache License, Version 2.0 (the "License"); you may
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# not use this file except in compliance with the License. You may obtain
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# a copy of the License at
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina#
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# http://www.apache.org/licenses/LICENSE-2.0
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina#
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# Unless required by applicable law or agreed to in writing, software
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# License for the specific language governing permissions and limitations
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina# under the License.
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březinaimport ConfigParser
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březinaimport os
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březinaimport sys
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březinaimport smf_include
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březinafrom subprocess import CalledProcessError, Popen, PIPE, check_call
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březinadef start():
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina """ retrieves the setting for 'zfs_volume_base' from Cinder's conf file in
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina order to set it up properly for Cinder to use.
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina """
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina cinder_conf = "/etc/cinder/cinder.conf"
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina if not os.path.exists(cinder_conf):
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina print "%s doesn't exist" % cinder_conf
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina return smf_include.SMF_EXIT_ERR_CONFIG
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina parser = ConfigParser.ConfigParser()
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina parser.read(cinder_conf)
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina # retrieve the top-level dataset or just get the default (rpool/cinder)
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina try:
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina top_ds = parser.get("DEFAULT", "zfs_volume_base")
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina except ConfigParser.NoOptionError:
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina top_ds = "rpool/cinder"
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina # look to see if the dataset exists
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina cmd = ["/usr/sbin/zfs", "list", top_ds]
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina try:
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina check_call(cmd, stdout=PIPE, stderr=PIPE)
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina except CalledProcessError as err:
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina # the dataset doesn't exist, so go create it
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina try:
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina check_call(["/usr/sbin/zfs", "create", "-p", top_ds])
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina except CalledProcessError as err:
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina print "unable to create %s: %s" % (top_ds, err)
132e477d69e07e02fe6e4d668c0bb6226206474aPavel Březina return smf_include.SMF_EXIT_ERR_CONFIG
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina
a1e4113a5388e34c08459c5b69679c82ac2bddc9Pavel Březina # get the mountpoint
cmd = ["/usr/sbin/zfs", "get", "-H", "-o", "value", "mountpoint", top_ds]
p = Popen(cmd, stdout=PIPE, stderr=PIPE)
mountpoint, error = p.communicate()
if p.returncode != 0:
print "unable to determine mountpoint of %s: %s" % (top_ds, error)
return smf_include.SMF_EXIT_ERR_CONFIG
p = Popen(["/usr/bin/ls", "-dv", mountpoint], stdout=PIPE, stderr=PIPE)
output, error = p.communicate()
if "user:cinder:add_subdirectory/append_data:allow" not in output:
# set an ACL to all mountpoint access
try:
check_call(["/usr/bin/chmod",
"A+user:cinder:add_subdirectory:allow",
mountpoint.strip()])
except CalledProcessError as err:
print "ACL creation for mountpoint access of "
print "%s to 'cinder' failed: %s" % (top_ds, err)
return smf_include.SMF_EXIT_ERR_CONFIG
# set delegation
cmd = ["/usr/sbin/zfs", "allow", "cinder",
"clone,create,destroy,mount,snapshot", top_ds]
try:
check_call(cmd)
except CalledProcessError as err:
print "delegation of %s to 'cinder' failed: %s" % (top_ds, err)
return smf_include.SMF_EXIT_ERR_CONFIG
return int(smf_include.SMF_EXIT_OK)
if __name__ == "__main__":
os.putenv("LC_ALL", "C")
smf_include.smf_main()