#!/usr/bin/python2.6

# Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.

#

#    Licensed under the Apache License, Version 2.0 (the "License"); you may

#    not use this file except in compliance with the License. You may obtain

#    a copy of the License at

#

#         http://www.apache.org/licenses/LICENSE-2.0

#

#    Unless required by applicable law or agreed to in writing, software

#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

#    License for the specific language governing permissions and limitations

#    under the License.

import ConfigParser

import os

import smf_include

from subprocess import CalledProcessError, Popen, PIPE, check_call

def start():

    """ checks cinder's conf file for the ZFSISCSIDriver.  If it's found, make

    sure svc:/network/iscsi/target:default is online.

    """

    parser = ConfigParser.ConfigParser()

    parser.read("/etc/cinder/cinder.conf")

    driver = parser.get("DEFAULT", "volume_driver")

    if driver == "cinder.volume.drivers.solaris.zfs.ZFSISCSIDriver":

        iscsi_svc = "svc:/network/iscsi/target:default"

        cmd = ["/usr/bin/svcs", "-H", "-o", "state", iscsi_svc]

        try:

            p = Popen(cmd, stdout=PIPE, stderr=PIPE)

            output, error = p.communicate()

        except CalledProcessError:

            print "%s not found.  Is it installed?" % iscsi_svc

            return smf_include.SMF_EXIT_ERR_CONFIG

        if output.strip() != "online":

            cmd = ["/usr/sbin/svcadm", "enable", "-rs", iscsi_svc]

            try:

                check_call(cmd)

            except CalledProcessError as err:

                print "enabling %s failed:  %s" % (iscsi_svc, err)

                return smf_include.SMF_EXIT_ERR_CONFIG

    smf_include.smf_subprocess("/usr/bin/pfexec /usr/lib/cinder/cinder-volume")

if __name__ == "__main__":

    os.putenv("LC_ALL", "C")

    smf_include.smf_main()