178 lines
6.9 KiB
Python
178 lines
6.9 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 ddt
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import six
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from oslo_log import log as logging
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from oslo_utils import units
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from tempest import config
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from tempest.lib import exceptions
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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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@ddt.ddt
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class ShareExtendBase(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 (1GB)
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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
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* Extend share (2GB)
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* Write more data in share
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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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@tc.attr(base.TAG_POSITIVE, base.TAG_BACKEND)
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def test_create_extend_and_write(self):
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default_share_size = CONF.share.share_size
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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'
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.format(default_share_size))
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share = self.create_share(size=default_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, share=share)
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locations = self.get_share_export_locations(share)
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LOG.debug('Step 5 - mount')
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self.mount_share(locations[0], remote_client)
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total_blocks = (units.Ki * default_share_size) / 64
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three_quarter_blocks = (total_blocks / 4) * 3
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LOG.debug('Step 6 - writing {} * 64MB blocks'
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.format(three_quarter_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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three_quarter_blocks,
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'/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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over_one_quarter_blocks = total_blocks - three_quarter_blocks + 5
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LOG.debug('Step 6b - Write more data, 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/t2', '64M', over_one_quarter_blocks,
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'/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 7 - extend and wait')
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extended_share_size = default_share_size + 1
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self.shares_v2_client.extend_share(share["id"],
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new_size=extended_share_size)
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self.shares_v2_client.wait_for_share_status(share["id"],
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constants.STATUS_AVAILABLE)
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share = self.shares_v2_client.get_share(share["id"])
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self.assertEqual(extended_share_size, int(share["size"]))
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LOG.debug('Step 8 - writing more data, should succeed')
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self.write_data_with_remount(locations[0], remote_client, '/mnt/t3',
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'64M', over_one_quarter_blocks)
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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 9 - unmount')
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self.unmount_share(remote_client)
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def write_data_with_remount(self, mount_location,
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remote_client,
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output_file,
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block_size,
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block_count):
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"""Writes data to mounted share using dd command
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Tries remounting once if encountering a stale file handle
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:param mount_location: Mount point for remounting if needed
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:param remote_client: An SSH client connection to the Nova instance
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:param block_size: The size of an individual block in bytes
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:param block_count: The number of blocks to write
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:param output_file: Path to the file to be written
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"""
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try:
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self.write_data_to_mounted_share_using_dd(remote_client,
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output_file,
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block_size,
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block_count,
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'/dev/urandom')
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except exceptions.SSHExecCommandFailed as e:
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if 'stale file handle' in six.text_type(e).lower():
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LOG.warning("Client was disconnected during extend process")
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self.unmount_share(remote_client)
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self.mount_share(mount_location, remote_client)
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self.write_data_to_mounted_share_using_dd(remote_client,
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output_file,
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block_size,
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block_count,
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'/dev/urandom')
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else:
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raise
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class TestShareExtendNFS(ShareExtendBase):
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protocol = "nfs"
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def mount_share(self, location, remote_client, target_dir=None):
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target_dir = target_dir or "/mnt"
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remote_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 TestShareExtendCIFS(ShareExtendBase):
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protocol = "cifs"
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def mount_share(self, location, remote_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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remote_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 ShareExtendBase
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# from 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 ShareExtendBase:
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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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