649 lines
26 KiB
Python
649 lines
26 KiB
Python
# Copyright 2015 Hewlett Packard Enterprise Development LP
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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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"""HPE 3PAR Driver for OpenStack Manila."""
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import datetime
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import hashlib
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import inspect
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import os
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import re
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from oslo_config import cfg
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from oslo_config import types
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from oslo_log import log
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import six
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from manila.common import config
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from manila import exception
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from manila.i18n import _
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from manila.share import driver
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from manila.share.drivers.hpe import hpe_3par_mediator
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from manila.share import share_types
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from manila.share import utils as share_utils
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from manila import utils
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LOG = log.getLogger(__name__)
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class FPG(types.String, types.IPAddress):
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"""FPG type.
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Used to represent multiple pools per backend values.
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Converts configuration value to an FPGs value.
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FPGs value format::
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FPG name, IP address 1, IP address 2, ..., IP address 4
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where FPG name is a string value,
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IP address is of type types.IPAddress
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Optionally doing range checking.
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If value is whitespace or empty string will raise error
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:param min_ip: Optional check that number of min IP address of VFS.
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:param max_ip: Optional check that number of max IP address of VFS.
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:param type_name: Type name to be used in the sample config file.
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"""
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MAX_SUPPORTED_IP_PER_VFS = 4
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def __init__(self, min_ip=0, max_ip=MAX_SUPPORTED_IP_PER_VFS,
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type_name='FPG'):
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types.String.__init__(self, type_name=type_name)
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types.IPAddress.__init__(self, type_name=type_name)
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if max_ip < min_ip:
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msg = _("Pool's max acceptable IP cannot be less than min.")
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raise exception.HPE3ParInvalid(err=msg)
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if min_ip < 0:
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msg = _("Pools must be configured with zero or more IPs.")
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raise exception.HPE3ParInvalid(err=msg)
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if max_ip > FPG.MAX_SUPPORTED_IP_PER_VFS:
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msg = (_("Pool's max acceptable IP cannot be greater than "
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"supported value=%s.") % FPG.MAX_SUPPORTED_IP_PER_VFS)
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raise exception.HPE3ParInvalid(err=msg)
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self.min_ip = min_ip
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self.max_ip = max_ip
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def __call__(self, value):
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if value is None or value.strip(' ') is '':
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message = _("Invalid configuration. hpe3par_fpg must be set.")
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LOG.error(message)
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raise exception.HPE3ParInvalid(err=message)
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ips = []
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values = value.split(",")
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# Extract pool name
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pool_name = values.pop(0).strip()
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# values will now be ['ip1', ...]
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if len(values) < self.min_ip:
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msg = (_("Require at least %s IPs configured per "
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"pool") % self.min_ip)
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raise exception.HPE3ParInvalid(err=msg)
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if len(values) > self.max_ip:
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msg = (_("Cannot configure IPs more than max supported "
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"%s IPs per pool") % self.max_ip)
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raise exception.HPE3ParInvalid(err=msg)
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for ip_addr in values:
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ip_addr = types.String.__call__(self, ip_addr.strip())
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try:
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ips.append(types.IPAddress.__call__(self, ip_addr))
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except ValueError as verror:
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raise exception.HPE3ParInvalid(err=verror)
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fpg = {pool_name: ips}
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return fpg
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def __repr__(self):
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return 'FPG'
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def _formatter(self, value):
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return six.text_type(value)
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HPE3PAR_OPTS = [
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cfg.StrOpt('hpe3par_api_url',
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default='',
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help="3PAR WSAPI Server Url like "
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"https://<3par ip>:8080/api/v1",
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deprecated_name='hp3par_api_url'),
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cfg.StrOpt('hpe3par_username',
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default='',
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help="3PAR username with the 'edit' role",
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deprecated_name='hp3par_username'),
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cfg.StrOpt('hpe3par_password',
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default='',
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help="3PAR password for the user specified in hpe3par_username",
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secret=True,
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deprecated_name='hp3par_password'),
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cfg.HostAddressOpt('hpe3par_san_ip',
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help="IP address of SAN controller",
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deprecated_name='hp3par_san_ip'),
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cfg.StrOpt('hpe3par_san_login',
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default='',
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help="Username for SAN controller",
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deprecated_name='hp3par_san_login'),
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cfg.StrOpt('hpe3par_san_password',
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default='',
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help="Password for SAN controller",
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secret=True,
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deprecated_name='hp3par_san_password'),
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cfg.PortOpt('hpe3par_san_ssh_port',
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default=22,
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help='SSH port to use with SAN',
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deprecated_name='hp3par_san_ssh_port'),
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cfg.MultiOpt('hpe3par_fpg',
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item_type=FPG(min_ip=0, max_ip=FPG.MAX_SUPPORTED_IP_PER_VFS),
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help="The File Provisioning Group (FPG) to use",
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deprecated_name='hp3par_fpg'),
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cfg.BoolOpt('hpe3par_fstore_per_share',
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default=False,
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help="Use one filestore per share",
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deprecated_name='hp3par_fstore_per_share'),
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cfg.BoolOpt('hpe3par_require_cifs_ip',
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default=False,
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help="Require IP access rules for CIFS (in addition to user)"),
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cfg.BoolOpt('hpe3par_debug',
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default=False,
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help="Enable HTTP debugging to 3PAR",
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deprecated_name='hp3par_debug'),
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cfg.StrOpt('hpe3par_cifs_admin_access_username',
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default='',
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help="File system admin user name for CIFS.",
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deprecated_name='hp3par_cifs_admin_access_username'),
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cfg.StrOpt('hpe3par_cifs_admin_access_password',
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default='',
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help="File system admin password for CIFS.",
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secret=True,
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deprecated_name='hp3par_cifs_admin_access_password'),
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cfg.StrOpt('hpe3par_cifs_admin_access_domain',
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default='LOCAL_CLUSTER',
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help="File system domain for the CIFS admin user.",
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deprecated_name='hp3par_cifs_admin_access_domain'),
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cfg.StrOpt('hpe3par_share_mount_path',
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default='/mnt/',
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help="The path where shares will be mounted when deleting "
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"nested file trees.",
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deprecated_name='hpe3par_share_mount_path'),
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]
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CONF = cfg.CONF
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CONF.register_opts(HPE3PAR_OPTS)
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def to_list(var):
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"""Convert var to list type if not"""
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if isinstance(var, six.string_types):
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return [var]
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else:
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return var
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class HPE3ParShareDriver(driver.ShareDriver):
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"""HPE 3PAR driver for Manila.
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Supports NFS and CIFS protocols on arrays with File Persona.
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Version history::
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1.0.0 - Begin Liberty development (post-Kilo)
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1.0.1 - Report thin/dedup/hp_flash_cache capabilities
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1.0.2 - Add share server/share network support
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2.0.0 - Rebranded HP to HPE
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2.0.1 - Add access_level (e.g. read-only support)
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2.0.2 - Add extend/shrink
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2.0.3 - Remove file tree on delete when using nested shares #1538800
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2.0.4 - Reduce the fsquota by share size
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when a share is deleted #1582931
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2.0.5 - Add update_access support
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2.0.6 - Multi pool support per backend
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2.0.7 - Fix get_vfs() to correctly validate conf IP addresses at
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boot up #1621016
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2.0.8 - Replace ConsistencyGroup with ShareGroup
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"""
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VERSION = "2.0.8"
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def __init__(self, *args, **kwargs):
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super(HPE3ParShareDriver, self).__init__((True, False),
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*args,
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**kwargs)
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self.configuration = kwargs.get('configuration', None)
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self.configuration.append_config_values(HPE3PAR_OPTS)
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self.configuration.append_config_values(driver.ssh_opts)
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self.configuration.append_config_values(config.global_opts)
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self.fpgs = {}
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self._hpe3par = None # mediator between driver and client
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def do_setup(self, context):
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"""Any initialization the share driver does while starting."""
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LOG.info("Starting share driver %(driver_name)s (%(version)s)",
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{'driver_name': self.__class__.__name__,
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'version': self.VERSION})
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mediator = hpe_3par_mediator.HPE3ParMediator(
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hpe3par_username=self.configuration.hpe3par_username,
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hpe3par_password=self.configuration.hpe3par_password,
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hpe3par_api_url=self.configuration.hpe3par_api_url,
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hpe3par_debug=self.configuration.hpe3par_debug,
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hpe3par_san_ip=self.configuration.hpe3par_san_ip,
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hpe3par_san_login=self.configuration.hpe3par_san_login,
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hpe3par_san_password=self.configuration.hpe3par_san_password,
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hpe3par_san_ssh_port=self.configuration.hpe3par_san_ssh_port,
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hpe3par_fstore_per_share=(self.configuration
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.hpe3par_fstore_per_share),
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hpe3par_require_cifs_ip=self.configuration.hpe3par_require_cifs_ip,
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hpe3par_cifs_admin_access_username=(
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self.configuration.hpe3par_cifs_admin_access_username),
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hpe3par_cifs_admin_access_password=(
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self.configuration.hpe3par_cifs_admin_access_password),
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hpe3par_cifs_admin_access_domain=(
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self.configuration.hpe3par_cifs_admin_access_domain),
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hpe3par_share_mount_path=(
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self.configuration.hpe3par_share_mount_path),
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my_ip=self.configuration.my_ip,
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ssh_conn_timeout=self.configuration.ssh_conn_timeout,
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)
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mediator.do_setup()
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def _validate_pool_ips(addresses, conf_pool_ips):
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# Pool configured IP addresses should be subset of IP addresses
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# retured from vfs
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if not set(conf_pool_ips) <= set(addresses):
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msg = _("Incorrect configuration. "
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"Configuration pool IP address did not match with "
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"IP addresses at 3par array")
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raise exception.HPE3ParInvalid(err=msg)
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def _construct_fpg():
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# FPG must be configured and must exist.
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# self.configuration.safe_get('hpe3par_fpg') will have value in
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# following format:
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# [ {'pool_name':['ip_addr', 'ip_addr', ...]}, ... ]
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for fpg in self.configuration.safe_get('hpe3par_fpg'):
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pool_name = list(fpg)[0]
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conf_pool_ips = fpg[pool_name]
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# Validate the FPG and discover the VFS
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# This also validates the client, connection, firmware, WSAPI,
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# FPG...
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vfs_info = mediator.get_vfs(pool_name)
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if self.driver_handles_share_servers:
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# Use discovered IP(s) from array
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self.fpgs[pool_name] = {
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vfs_info['vfsname']: vfs_info['vfsip']['address']}
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elif conf_pool_ips == []:
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# not DHSS and IPs not configured in manila.conf.
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if not vfs_info['vfsip']['address']:
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msg = _("Unsupported configuration. "
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"hpe3par_fpg must have IP address "
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"or be discoverable at 3PAR")
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LOG.error(msg)
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raise exception.HPE3ParInvalid(err=msg)
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else:
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# Use discovered pool ips
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self.fpgs[pool_name] = {
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vfs_info['vfsname']: vfs_info['vfsip']['address']}
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else:
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# not DHSS and IPs configured in manila.conf
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_validate_pool_ips(vfs_info['vfsip']['address'],
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conf_pool_ips)
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self.fpgs[pool_name] = {
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vfs_info['vfsname']: conf_pool_ips}
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_construct_fpg()
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# Don't set _hpe3par until it is ready. Otherwise _update_stats fails.
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self._hpe3par = mediator
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def _get_pool_location_from_share_host(self, share_instance_host):
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# Return pool name, vfs, IPs for a pool from share instance host
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pool_name = share_utils.extract_host(share_instance_host, level='pool')
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if not pool_name:
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message = (_("Pool is not available in the share host %s.") %
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share_instance_host)
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raise exception.InvalidHost(reason=message)
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if pool_name not in self.fpgs:
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message = (_("Pool location lookup failed. "
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"Could not find pool %s") %
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pool_name)
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raise exception.InvalidHost(reason=message)
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vfs = list(self.fpgs[pool_name])[0]
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ips = self.fpgs[pool_name][vfs]
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return (pool_name, vfs, ips)
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def _get_pool_location(self, share, share_server=None):
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# Return pool name, vfs, IPs for a pool from share host field
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# Use share_server if provided, instead of self.fpgs
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if share_server is not None:
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# When DHSS
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ips = share_server['backend_details'].get('ip')
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ips = to_list(ips)
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vfs = share_server['backend_details'].get('vfs')
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pool_name = share_server['backend_details'].get('fpg')
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return (pool_name, vfs, ips)
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else:
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# When DHSS = false
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return self._get_pool_location_from_share_host(share['host'])
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def check_for_setup_error(self):
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try:
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# Log the source SHA for support. Only do this with DEBUG.
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if LOG.isEnabledFor(log.DEBUG):
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LOG.debug('HPE3ParShareDriver SHA1: %s',
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self.sha1_hash(HPE3ParShareDriver))
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LOG.debug('HPE3ParMediator SHA1: %s',
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self.sha1_hash(hpe_3par_mediator.HPE3ParMediator))
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except Exception as e:
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# Don't let any exceptions during the SHA1 logging interfere
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# with startup. This is just debug info to identify the source
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# code. If it doesn't work, just log a debug message.
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LOG.debug('Source code SHA1 not logged due to: %s',
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six.text_type(e))
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@staticmethod
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def sha1_hash(clazz):
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"""Get the SHA1 hash for the source of a class."""
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source_file = inspect.getsourcefile(clazz)
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file_size = os.path.getsize(source_file)
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sha1 = hashlib.sha1()
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sha1.update(("blob %u\0" % file_size).encode('utf-8'))
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with open(source_file, 'rb') as f:
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sha1.update(f.read())
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return sha1.hexdigest()
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def get_network_allocations_number(self):
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return 1
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def choose_share_server_compatible_with_share(self, context, share_servers,
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share, snapshot=None,
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share_group=None):
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"""Method that allows driver to choose share server for provided share.
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If compatible share-server is not found, method should return None.
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:param context: Current context
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:param share_servers: list with share-server models
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:param share: share model
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:param snapshot: snapshot model
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:param share_group: ShareGroup model with shares
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:returns: share-server or None
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"""
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# If creating in a share group, raise exception
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if share_group:
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msg = _("HPE 3PAR driver does not support share group")
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raise exception.InvalidRequest(message=msg)
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pool_name = share_utils.extract_host(share['host'], level='pool')
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for share_server in share_servers:
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if share_server['backend_details'].get('fpg') == pool_name:
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return share_server
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return None
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@staticmethod
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def _validate_network_type(network_type):
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if network_type not in ('flat', 'vlan', None):
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reason = _('Invalid network type. %s is not supported by the '
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'3PAR driver.')
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raise exception.NetworkBadConfigurationException(
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reason=reason % network_type)
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def _create_share_server(self, network_info, request_host=None):
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"""Is called to create/setup share server"""
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# Return pool name, vfs, IPs for a pool
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pool_name, vfs, ips = self._get_pool_location_from_share_host(
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request_host)
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ip = network_info['network_allocations'][0]['ip_address']
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if ip not in ips:
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# Besides DHSS, admin could have setup IP to VFS directly on array
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if len(ips) > (FPG.MAX_SUPPORTED_IP_PER_VFS - 1):
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message = (_("Pool %s has exceeded 3PAR's "
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"max supported VFS IP address") % pool_name)
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LOG.error(message)
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raise exception.Invalid(message)
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subnet = utils.cidr_to_netmask(network_info['cidr'])
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vlantag = network_info['segmentation_id']
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self._hpe3par.create_fsip(ip, subnet, vlantag, pool_name, vfs)
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# Update in global saved config, self.fpgs[pool_name]
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ips.append(ip)
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return {'share_server_name': network_info['server_id'],
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'share_server_id': network_info['server_id'],
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'ip': ip,
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'subnet': subnet,
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'vlantag': vlantag if vlantag else 0,
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'fpg': pool_name,
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'vfs': vfs}
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def _setup_server(self, network_info, metadata=None):
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LOG.debug("begin _setup_server with %s", network_info)
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self._validate_network_type(network_info['network_type'])
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if metadata is not None and metadata['request_host'] is not None:
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return self._create_share_server(network_info,
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metadata['request_host'])
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def _teardown_server(self, server_details, security_services=None):
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LOG.debug("begin _teardown_server with %s", server_details)
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fpg = server_details.get('fpg')
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vfs = server_details.get('vfs')
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ip = server_details.get('ip')
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self._hpe3par.remove_fsip(ip, fpg, vfs)
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if ip in self.fpgs[fpg][vfs]:
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self.fpgs[fpg][vfs].remove(ip)
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@staticmethod
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def build_share_comment(share):
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"""Create an informational only comment to help admins and testers."""
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|
|
info = {
|
|
'name': share['display_name'],
|
|
'host': share['host'],
|
|
'now': datetime.datetime.now().strftime('%H%M%S'),
|
|
}
|
|
|
|
acceptable = re.compile('[^a-zA-Z0-9_=:@# \-]+', re.UNICODE)
|
|
comment = ("OpenStack Manila - host=%(host)s orig_name=%(name)s "
|
|
"created=%(now)s" % info)
|
|
|
|
return acceptable.sub('_', comment)[:254] # clean and truncate
|
|
|
|
def create_share(self, context, share, share_server=None):
|
|
"""Is called to create share."""
|
|
|
|
fpg, vfs, ips = self._get_pool_location(share, share_server)
|
|
|
|
protocol = share['share_proto']
|
|
extra_specs = share_types.get_extra_specs_from_share(share)
|
|
|
|
path = self._hpe3par.create_share(
|
|
share['project_id'],
|
|
share['id'],
|
|
protocol,
|
|
extra_specs,
|
|
fpg, vfs,
|
|
size=share['size'],
|
|
comment=self.build_share_comment(share)
|
|
)
|
|
|
|
return self._hpe3par.build_export_locations(protocol, ips, path)
|
|
|
|
def create_share_from_snapshot(self, context, share, snapshot,
|
|
share_server=None):
|
|
"""Is called to create share from snapshot."""
|
|
|
|
fpg, vfs, ips = self._get_pool_location(share, share_server)
|
|
|
|
protocol = share['share_proto']
|
|
extra_specs = share_types.get_extra_specs_from_share(share)
|
|
|
|
path = self._hpe3par.create_share_from_snapshot(
|
|
share['id'],
|
|
protocol,
|
|
extra_specs,
|
|
share['project_id'],
|
|
snapshot['share_id'],
|
|
snapshot['id'],
|
|
fpg,
|
|
vfs,
|
|
ips,
|
|
size=share['size'],
|
|
comment=self.build_share_comment(share)
|
|
)
|
|
|
|
return self._hpe3par.build_export_locations(protocol, ips, path)
|
|
|
|
def delete_share(self, context, share, share_server=None):
|
|
"""Deletes share and its fstore."""
|
|
|
|
fpg, vfs, ips = self._get_pool_location(share, share_server)
|
|
self._hpe3par.delete_share(share['project_id'],
|
|
share['id'],
|
|
share['size'],
|
|
share['share_proto'],
|
|
fpg,
|
|
vfs,
|
|
ips[0])
|
|
|
|
def create_snapshot(self, context, snapshot, share_server=None):
|
|
"""Creates a snapshot of a share."""
|
|
|
|
fpg, vfs, ips = self._get_pool_location(snapshot['share'],
|
|
share_server)
|
|
self._hpe3par.create_snapshot(snapshot['share']['project_id'],
|
|
snapshot['share']['id'],
|
|
snapshot['share']['share_proto'],
|
|
snapshot['id'],
|
|
fpg,
|
|
vfs)
|
|
|
|
def delete_snapshot(self, context, snapshot, share_server=None):
|
|
"""Deletes a snapshot of a share."""
|
|
|
|
fpg, vfs, ips = self._get_pool_location(snapshot['share'],
|
|
share_server)
|
|
self._hpe3par.delete_snapshot(snapshot['share']['project_id'],
|
|
snapshot['share']['id'],
|
|
snapshot['share']['share_proto'],
|
|
snapshot['id'],
|
|
fpg,
|
|
vfs)
|
|
|
|
def ensure_share(self, context, share, share_server=None):
|
|
pass
|
|
|
|
def update_access(self, context, share, access_rules, add_rules,
|
|
delete_rules, share_server=None):
|
|
"""Update access to the share."""
|
|
extra_specs = None
|
|
if 'NFS' == share['share_proto']: # Avoiding DB call otherwise
|
|
extra_specs = share_types.get_extra_specs_from_share(share)
|
|
|
|
fpg, vfs, ips = self._get_pool_location(share, share_server)
|
|
self._hpe3par.update_access(share['project_id'],
|
|
share['id'],
|
|
share['share_proto'],
|
|
extra_specs,
|
|
access_rules,
|
|
add_rules,
|
|
delete_rules,
|
|
fpg,
|
|
vfs)
|
|
|
|
def extend_share(self, share, new_size, share_server=None):
|
|
"""Extends size of existing share."""
|
|
|
|
fpg, vfs, ips = self._get_pool_location(share, share_server)
|
|
self._hpe3par.resize_share(share['project_id'],
|
|
share['id'],
|
|
share['share_proto'],
|
|
new_size,
|
|
share['size'],
|
|
fpg,
|
|
vfs)
|
|
|
|
def shrink_share(self, share, new_size, share_server=None):
|
|
"""Shrinks size of existing share."""
|
|
|
|
fpg, vfs, ips = self._get_pool_location(share, share_server)
|
|
self._hpe3par.resize_share(share['project_id'],
|
|
share['id'],
|
|
share['share_proto'],
|
|
new_size,
|
|
share['size'],
|
|
fpg,
|
|
vfs)
|
|
|
|
def _update_share_stats(self):
|
|
"""Retrieve stats info from share group."""
|
|
|
|
backend_name = self.configuration.safe_get(
|
|
'share_backend_name') or "HPE_3PAR"
|
|
|
|
max_over_subscription_ratio = self.configuration.safe_get(
|
|
'max_over_subscription_ratio')
|
|
|
|
reserved_share_percentage = self.configuration.safe_get(
|
|
'reserved_share_percentage')
|
|
if reserved_share_percentage is None:
|
|
reserved_share_percentage = 0
|
|
|
|
stats = {
|
|
'share_backend_name': backend_name,
|
|
'driver_handles_share_servers': self.driver_handles_share_servers,
|
|
'vendor_name': 'HPE',
|
|
'driver_version': self.VERSION,
|
|
'storage_protocol': 'NFS_CIFS',
|
|
'total_capacity_gb': 0,
|
|
'free_capacity_gb': 0,
|
|
'provisioned_capacity_gb': 0,
|
|
'reserved_percentage': reserved_share_percentage,
|
|
'max_over_subscription_ratio': max_over_subscription_ratio,
|
|
'qos': False,
|
|
'thin_provisioning': True, # 3PAR default is thin
|
|
}
|
|
|
|
if not self._hpe3par:
|
|
LOG.info(
|
|
"Skipping capacity and capabilities update. Setup has not "
|
|
"completed.")
|
|
else:
|
|
for fpg in self.fpgs:
|
|
fpg_status = self._hpe3par.get_fpg_status(fpg)
|
|
fpg_status['reserved_percentage'] = reserved_share_percentage
|
|
LOG.debug("FPG status = %s.", fpg_status)
|
|
stats.setdefault('pools', []).append(fpg_status)
|
|
|
|
super(HPE3ParShareDriver, self)._update_share_stats(stats)
|