ea45357fe6
- sync charmhelpers with fix-alpha helpers - fix up code where the alpha comparisons are done Change-Id: Ic227ce03c1acf6de9b5f83953d6390d66cda190c Related-Bug: #1659575
133 lines
4.1 KiB
Python
Executable File
133 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright 2016 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import sys
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import traceback
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import subprocess
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sys.path.append('hooks/')
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from cinder import context
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from cinder import db
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from cinder.db.sqlalchemy.api import model_query, get_session
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from cinder.db.sqlalchemy import models
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from charmhelpers.contrib.openstack.utils import (
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os_release,
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CompareOpenStackReleases,
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)
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from sqlalchemy import and_
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from charmhelpers.core.hookenv import (
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action_set,
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action_fail,
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action_get,
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log,
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)
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DEFAULT_SERVICES = (
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"cinder",
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"cinder@cinder-ceph",
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)
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try:
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from cinder import flags
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cfg = flags.FLAGS
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except ImportError:
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from cinder.common.config import CONF
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cfg = CONF
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def load_config_file(conf):
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cfg(args=[], project='cinder', default_config_files=[conf])
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def cinder_manage_remove(binary, hostname):
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return subprocess.check_call(["cinder-manage", "service", "remove", binary,
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hostname])
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def cinder_manage_volume_update_host(currenthost, newhost):
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return subprocess.check_call(["cinder-manage", "volume", "update_host",
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"--currenthost", currenthost,
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"--newhost", newhost])
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def remove_services(args):
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load_config_file(os.path.join(os.path.sep, "etc", "cinder", "cinder.conf"))
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host = action_get(key="host")
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services = model_query({}, models.Service, read_deleted="no",
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session=get_session())
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if host not in ("unused", "",):
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services = services.filter(models.Service.host == host)
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else:
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ands = []
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for service in DEFAULT_SERVICES:
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ands.append(and_(models.Service.host != service))
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services = services.filter(*ands)
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removed_services = []
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ctxt = context.get_admin_context()
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for service in services.all():
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log("Removing service:%d, hostname:%s" % (service.id, service.host))
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try:
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if CompareOpenStackReleases(os_release("cinder")) >= "liberty":
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cinder_manage_remove(service.binary, service.host)
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else:
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db.service_destroy(ctxt, service.id)
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except:
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action_set({'traceback': traceback.format_exc()})
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action_fail("Cannot remove service: %s" % service.host)
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else:
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removed_services.append(service.host)
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action_set({'removed': ",".join(removed_services)})
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def _rename_volume_host(currenthost, newhost):
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load_config_file(os.path.join(os.path.sep, "etc", "cinder", "cinder.conf"))
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services = model_query({}, models.Service, read_deleted="no",
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session=get_session())
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services = services.filter(models.Service.host == currenthost)
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if services.all():
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try:
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cinder_manage_volume_update_host(currenthost, newhost)
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except:
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action_set({'traceback': traceback.format_exc()})
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action_fail("Cannot update host {}".format(currenthost))
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else:
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action_fail(
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"Cannot update host attribute from {}, {} not found".format(
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currenthost,
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currenthost))
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def rename_volume_host(args):
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action_args = action_get()
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_rename_volume_host(action_args['currenthost'], action_args['newhost'])
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def volume_host_add_driver(args):
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action_args = action_get()
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newhost = "{}@{}".format(action_args['currenthost'], action_args['driver'])
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if action_args.get('volume-backend-name'):
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newhost = newhost + '#' + action_args['volume-backend-name']
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_rename_volume_host(action_args['currenthost'], newhost)
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