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# Copyright (C) 2020 Red Hat, Inc. <http://www.redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along`
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-131 USA.
"""
Description:
Rebalance: permissions check as non root user
"""
from glusto.core import Glusto as g
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
from glustolibs.gluster.rebalance_ops import (
rebalance_start,
wait_for_rebalance_to_complete)
from glustolibs.gluster.volume_libs import (
expand_volume,
log_volume_info_and_status)
from glustolibs.io.utils import (collect_mounts_arequal)
from glustolibs.gluster.lib_utils import (add_user, del_user)
from glustolibs.gluster.glusterfile import (
get_file_stat,
set_file_permissions)
@runs_on([['distributed', 'distributed-replicated'],
['glusterfs']])
class TestRebalancePreserveUserPermissions(GlusterBaseClass):
def setUp(self):
self.get_super_method(self, 'setUp')()
# Creating Volume and mounting the volume
ret = self.setup_volume_and_mount_volume(mounts=self.mounts)
if not ret:
raise ExecutionError("Failed to Setup_Volume and Mount_Volume")
g.log.info("Successful in Setup Volume and Mount Volume")
self.user = "glusto_user"
self.client = self.mounts[0].client_system
self.mountpoint = self.mounts[0].mountpoint
# Add new user on the client node
ret = add_user(self.client, self.user)
if not ret:
raise ExecutionError("Failed to add user")
def tearDown(self):
ret = del_user(self.client, self.user)
if not ret:
raise ExecutionError("Failed to delete user")
# Unmount Volume and cleanup.
ret = self.unmount_volume_and_cleanup_volume(mounts=self.mounts)
if not ret:
raise ExecutionError("Failed to Unmount Volume and "
"Cleanup Volume")
g.log.info("Successful in Unmount Volume and cleanup.")
self.get_super_method(self, 'tearDown')()
def _start_rebalance_and_wait(self):
"""Start rebalance and wait"""
# Start Rebalance
ret, _, _ = rebalance_start(self.mnode, self.volname)
self.assertEqual(ret, 0, ("Failed to start rebalance on the volume "
"%s", self.volname))
g.log.info("Successfully started rebalance on the volume %s",
self.volname)
# Wait for rebalance to complete
ret = wait_for_rebalance_to_complete(self.mnode, self.volname)
self.assertTrue(ret, ("Rebalance is not yet complete on the volume "
"%s", self.volname))
g.log.info("Rebalance is successfully complete on the volume %s",
self.volname)
def _get_arequal_and_check_if_equal_to_before(self):
"""Check if arequal checksum is equal or not"""
self.arequal_checksum_after = collect_mounts_arequal(self.mounts[0])
self.assertEqual(
self.arequal_checksum_before, self.arequal_checksum_after,
"arequal checksum is NOT MATCHNG")
g.log.info("arequal checksum is SAME")
def _logged_vol_info(self):
"""Log volume info and status"""
ret = log_volume_info_and_status(self.mnode, self.volname)
self.assertTrue(ret, ("Logging volume info and status failed on "
"volume %s", self.volname))
def _check_user_permission(self):
"""
Verify permissions on MP and file
"""
stat_mp_dict = get_file_stat(self.client, self.mountpoint)
self.assertIsNotNone(stat_mp_dict, "stat on %s failed"
% self.mountpoint)
self.assertEqual(stat_mp_dict['access'], '777',
"Expected 777 "
"but found %s" % stat_mp_dict['access'])
g.log.info("File permissions for mountpoint is 777 as expected")
# check owner and group of random file
fpath = self.mountpoint + "/d1/f.1"
stat_dict = get_file_stat(self.client, fpath)
self.assertIsNotNone(stat_dict, "stat on %s failed" % fpath)
self.assertEqual(stat_dict['username'], self.user,
"Expected %s but found %s"
% (self.user, stat_dict['username']))
self.assertEqual(stat_dict['groupname'], self.user,
"Expected %s but found %s"
% (self.user, stat_dict['groupname']))
g.log.info("User and Group are %s as expected", self.user)
def _testcase(self, number_of_expands=1):
"""
Test case:
1. Create a volume start it and mount on the client.
2. Set full permission on the mount point.
3. Add new user to the client.
4. As the new user create dirs/files.
5. Compute arequal checksum and check permission on / and subdir.
6. expand cluster according to number_of_expands and start rebalance.
7. After rebalance is completed:
7.1 check arequal checksum
7.2 verfiy no change in / and sub dir permissions.
7.3 As the new user create and delete file/dir.
"""
# Set full permissions on the mount point.
ret = set_file_permissions(self.clients[0], self.mountpoint, "-R 777")
self.assertTrue(ret, "Failed to set permissions on the mount point")
g.log.info("Set full permissions on the mount point")
# Create dirs/files as self.test_user
cmd = (r'su -l %s -c "cd %s;'
r'for i in {0..9}; do mkdir d\$i; done;'
r'for i in {0..99}; do let x=\$i%%10;'
r'dd if=/dev/urandom of=d\$x/f.\$i bs=1024 count=1; done"'
% (self.user, self.mountpoint))
ret, _, _ = g.run(self.client, cmd)
self.assertEqual(ret, 0, ("Failed to create files as %s", self.user))
g.log.info("IO as %s is successful", self.user)
# check permission on / and subdir
self._check_user_permission()
# get arequal checksum before expand
self.arequal_checksum_before = collect_mounts_arequal(self.mounts[0])
self._logged_vol_info()
# expand the volume
for i in range(number_of_expands):
ret = expand_volume(self.mnode, self.volname, self.servers,
self.all_servers_info)
self.assertTrue(ret, ("Failed to expand iter %d volume %s",
i, self.volname))
self._logged_vol_info()
# Start Rebalance and wait for completion
self._start_rebalance_and_wait()
# compare arequals checksum before and after rebalance
self._get_arequal_and_check_if_equal_to_before()
# permissions check on / and sub dir
self._check_user_permission()
# Create/Delete file as self.test_user
cmd = ('su -l %s -c '
'"cd %s; touch file.test;'
'find . -mindepth 1 -maxdepth 1 -type d | xargs rm -rf"'
% (self.user, self.mountpoint))
ret, _, _ = g.run(self.client, cmd)
self.assertEqual(ret, 0, ("User %s failed to create files", self.user))
g.log.info("IO as %s is successful", self.user)
def test_rebalance_preserve_user_permissions(self):
self._testcase()
def test_rebalance_preserve_user_permissions_multi_expands(self):
self._testcase(2)
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