199 lines
7.7 KiB
Python
199 lines
7.7 KiB
Python
# 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 six
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import time
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from oslo_log import log as logging
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from tempest import config
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from tempest.lib import exceptions
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import testtools
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from testtools import testcase as tc
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from manila_tempest_tests.common import constants
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from manila_tempest_tests.tests.api import base
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from manila_tempest_tests.tests.scenario import manager_share as manager
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CONF = config.CONF
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LOG = logging.getLogger(__name__)
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class ShareShrinkBase(manager.ShareScenarioTest):
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"""This test case uses the following flow:
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* Launch an instance
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* Create share (Configured size + 1)
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* Configure RW access to the share
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* Perform ssh to instance
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* Mount share
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* Write data in share (in excess of 1GB)
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* Shrink share to 1GB (fail expected)
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* Delete data from share
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* Shrink share to 1GB
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* Write more than 1GB of data (fail expected)
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* Unmount share
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* Delete share
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* Terminate the instance
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"""
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@classmethod
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def skip_checks(cls):
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super(ShareShrinkBase, cls).skip_checks()
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if cls.protocol not in CONF.share.enable_ip_rules_for_protocols:
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message = ("%s tests for access rules other than IP are disabled" %
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cls.protocol)
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raise cls.skipException(message)
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@tc.attr(base.TAG_POSITIVE, base.TAG_BACKEND)
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@testtools.skipUnless(
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CONF.share.run_shrink_tests, 'Shrink share tests are disabled.')
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def test_create_shrink_and_write(self):
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default_share_size = CONF.share.share_size
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share_size = CONF.share.share_size + 1
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LOG.debug('Step 1 - create instance')
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instance = self.boot_instance(wait_until="BUILD")
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LOG.debug('Step 2 - create share of size {} Gb'.format(share_size))
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share = self.create_share(size=share_size)
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LOG.debug('Step 3 - wait for active instance')
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instance = self.wait_for_active_instance(instance["id"])
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remote_client = self.init_remote_client(instance)
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LOG.debug('Step 4 - grant access')
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self.provide_access_to_auxiliary_instance(instance)
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LOG.debug('Step 5 - mount')
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location = self.get_share_export_location_for_mount(share)
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self.mount_share(location, remote_client)
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total_blocks = (1024 * default_share_size) / 64
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blocks = total_blocks + 4
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LOG.debug('Step 6 - writing {} * 64MB blocks'.format(blocks))
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self.write_data_to_mounted_share_using_dd(remote_client,
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'/mnt/t1', '64M',
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blocks, '/dev/urandom')
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ls_result = remote_client.exec_command("sudo ls -lAh /mnt/")
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LOG.debug(ls_result)
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LOG.debug('Step 8 - try update size, shrink and wait')
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self.shares_v2_client.shrink_share(share['id'],
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new_size=default_share_size)
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self.shares_v2_client.wait_for_share_status(
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share['id'], ['shrinking_possible_data_loss_error', 'available'])
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share = self.shares_v2_client.get_share(share["id"])
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if share["status"] == constants.STATUS_AVAILABLE:
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params = {'resource_id': share['id']}
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messages = self.shares_v2_client.list_messages(params=params)
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self.assertIn('009',
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[message['action_id'] for message in messages])
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self.assertEqual(share_size, int(share["size"]))
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LOG.debug('Step 9 - delete data')
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remote_client.exec_command("sudo rm /mnt/t1")
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ls_result = remote_client.exec_command("sudo ls -lAh /mnt/")
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LOG.debug(ls_result)
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# Deletion of files can be an asynchronous activity on the backend.
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# Thus we need to wait until timeout for the space to be released
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# and repeating the shrink request until success
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LOG.debug('Step 10 - reset and shrink')
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self.share_shrink_retry_until_success(share["id"],
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new_size=default_share_size)
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share = self.shares_v2_client.get_share(share["id"])
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self.assertEqual(default_share_size, int(share["size"]))
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LOG.debug('Step 11 - write more data than allocated, should fail')
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self.assertRaises(
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exceptions.SSHExecCommandFailed,
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self.write_data_to_mounted_share_using_dd,
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remote_client, '/mnt/t1', '64M', blocks, '/dev/urandom')
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LOG.debug('Step 12 - unmount')
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self.unmount_share(remote_client)
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def share_shrink_retry_until_success(self, share_id, new_size,
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status_attr='status'):
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"""Try share reset, followed by shrink, until timeout"""
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check_interval = CONF.share.build_interval * 2
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share = self.shares_v2_client.get_share(share_id)
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share_current_size = share["size"]
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share_status = share[status_attr]
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start = int(time.time())
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while share_current_size != new_size:
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if (share_status ==
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constants.STATUS_SHRINKING_POSSIBLE_DATA_LOSS_ERROR):
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self.shares_admin_v2_client.reset_state(
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share_id, status=constants.STATUS_AVAILABLE)
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elif share_status != constants.STATUS_SHRINKING:
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try:
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self.shares_v2_client.shrink_share(share_id,
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new_size=new_size)
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except exceptions.BadRequest as e:
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if ('New size for shrink must be less than current size'
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in six.text_type(e)):
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break
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time.sleep(check_interval)
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share = self.shares_v2_client.get_share(share_id)
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share_status = share[status_attr]
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share_current_size = share["size"]
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if share_current_size == new_size:
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return
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if int(time.time()) - start >= CONF.share.build_timeout:
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message = ("Share %(share_id)s failed to shrink within the "
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"required time %(seconds)s." %
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{"share_id": share["id"],
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"seconds": CONF.share.build_timeout})
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raise exceptions.TimeoutException(message)
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class TestShareShrinkNFS(ShareShrinkBase):
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protocol = "nfs"
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def mount_share(self, location, ssh_client, target_dir=None):
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target_dir = target_dir or "/mnt"
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ssh_client.exec_command(
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"sudo mount -vt nfs \"%s\" %s" % (location, target_dir)
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)
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class TestShareShrinkCIFS(ShareShrinkBase):
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protocol = "cifs"
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def mount_share(self, location, ssh_client, target_dir=None):
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location = location.replace("\\", "/")
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target_dir = target_dir or "/mnt"
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ssh_client.exec_command(
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"sudo mount.cifs \"%s\" %s -o guest" % (location, target_dir)
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)
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# NOTE(u_glide): this function is required to exclude ShareShrinkBase from
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# executed test cases.
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# See: https://docs.python.org/3/library/unittest.html#load-tests-protocol
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# for details.
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def load_tests(loader, tests, _):
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result = []
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for test_case in tests:
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if type(test_case._tests[0]) is ShareShrinkBase:
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continue
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result.append(test_case)
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return loader.suiteClass(result)
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