author | Drew Fisher <drew.fisher@oracle.com> |
Wed, 11 Jun 2014 17:13:12 -0700 | |
changeset 1944 | 56ac2df1785b |
parent 1760 | 353323c7bdc1 |
child 3998 | 5bd484384122 |
permissions | -rw-r--r-- |
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#!/usr/bin/python2.6 |
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# Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); you may |
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# not use this file except in compliance with the License. You may obtain |
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# a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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# License for the specific language governing permissions and limitations |
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# under the License. |
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import ConfigParser |
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import os |
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import sys |
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import smf_include |
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from subprocess import CalledProcessError, Popen, PIPE, check_call |
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def start(): |
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""" retrieves the setting for 'zfs_volume_base' from Cinder's conf file in |
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order to set it up properly for Cinder to use. |
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""" |
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cinder_conf = "/etc/cinder/cinder.conf" |
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if not os.path.exists(cinder_conf): |
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print "%s doesn't exist" % cinder_conf |
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return smf_include.SMF_EXIT_ERR_CONFIG |
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parser = ConfigParser.ConfigParser() |
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parser.read(cinder_conf) |
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# retrieve the top-level dataset or just get the default (rpool/cinder) |
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try: |
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top_ds = parser.get("DEFAULT", "zfs_volume_base") |
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except ConfigParser.NoOptionError: |
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top_ds = "rpool/cinder" |
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# look to see if the dataset exists |
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cmd = ["/usr/sbin/zfs", "list", top_ds] |
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try: |
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check_call(cmd, stdout=PIPE, stderr=PIPE) |
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except CalledProcessError as err: |
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# the dataset doesn't exist, so go create it |
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try: |
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check_call(["/usr/sbin/zfs", "create", "-p", top_ds]) |
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except CalledProcessError as err: |
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print "unable to create %s: %s" % (top_ds, err) |
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return smf_include.SMF_EXIT_ERR_CONFIG |
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# get the mountpoint |
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cmd = ["/usr/sbin/zfs", "get", "-H", "-o", "value", "mountpoint", top_ds] |
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p = Popen(cmd, stdout=PIPE, stderr=PIPE) |
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mountpoint, error = p.communicate() |
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if p.returncode != 0: |
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print "unable to determine mountpoint of %s: %s" % (top_ds, error) |
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return smf_include.SMF_EXIT_ERR_CONFIG |
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p = Popen(["/usr/bin/ls", "-dv", mountpoint], stdout=PIPE, stderr=PIPE) |
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output, error = p.communicate() |
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|
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if "user:cinder:add_subdirectory/append_data:allow" not in output: |
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# set an ACL to all mountpoint access |
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try: |
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check_call(["/usr/bin/chmod", |
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"A+user:cinder:add_subdirectory:allow", |
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mountpoint.strip()]) |
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except CalledProcessError as err: |
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print "ACL creation for mountpoint access of " |
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print "%s to 'cinder' failed: %s" % (top_ds, err) |
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return smf_include.SMF_EXIT_ERR_CONFIG |
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# set delegation |
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cmd = ["/usr/sbin/zfs", "allow", "cinder", |
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"clone,create,destroy,mount,snapshot", top_ds] |
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try: |
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check_call(cmd) |
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except CalledProcessError as err: |
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print "delegation of %s to 'cinder' failed: %s" % (top_ds, err) |
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return smf_include.SMF_EXIT_ERR_CONFIG |
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|
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return smf_include.SMF_EXIT_OK |
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|
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if __name__ == "__main__": |
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os.putenv("LC_ALL", "C") |
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smf_include.smf_main() |