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# Copyright (C) 2017-2020 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 02110-1301 USA.
"""
Description:
Test cases in this module related glusterd enabling and
disabling shared storage
"""
from random import choice
from time import sleep
from glusto.core import Glusto as g
from glustolibs.gluster.brick_libs import get_all_bricks
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
from glustolibs.gluster.lib_utils import form_bricks_list
from glustolibs.gluster.shared_storage_ops import (enable_shared_storage,
is_shared_volume_mounted,
disable_shared_storage,
check_gluster_shared_volume)
from glustolibs.gluster.volume_ops import (volume_create,
volume_delete, get_volume_list)
from glustolibs.gluster.volume_libs import cleanup_volume
from glustolibs.misc.misc_libs import reboot_nodes_and_wait_to_come_online
@runs_on([['distributed'], ['glusterfs', 'nfs']])
class SharedStorage(GlusterBaseClass):
def setUp(self):
# calling GlusterBaseClass setUp
self.get_super_method(self, 'setUp')()
# Creating Volume
if not self.setup_volume():
raise ExecutionError("Volume creation failed")
def tearDown(self):
# Stopping and cleaning up the volume
vol_list = get_volume_list(self.mnode)
if vol_list is None:
raise ExecutionError("Failed to get volume list")
for volume in vol_list:
if not cleanup_volume(self.mnode, volume):
raise ExecutionError("Failed Cleanup the Volume")
# Calling GlusterBaseClass tearDown
self.get_super_method(self, 'tearDown')()
def _enable_and_check_shared_storage(self):
"""Enable and check shared storage is present"""
ret = enable_shared_storage(self.mnode)
self.assertTrue(ret, ("Failed to enable a shared storage"))
g.log.info("Successfully enabled: enable-shared-storage option")
# Check volume list to confirm gluster_shared_storage is created
ret = check_gluster_shared_volume(self.mnode)
self.assertTrue(ret, ("gluster_shared_storage volume not"
" created even after enabling it"))
g.log.info("gluster_shared_storage volume created"
" successfully")
def _disable_and_check_shared_storage(self):
"""Disable a shared storage without specifying the domain and check"""
ret = disable_shared_storage(self.mnode)
self.assertTrue(ret, ("Failed to disable a shared storage"))
g.log.info("Successfully disabled: disable-shared-storage")
# Check volume list to confirm gluster_shared_storage is deleted
ret = check_gluster_shared_volume(self.mnode, present=False)
self.assertTrue(ret, ("gluster_shared_storage volume not"
" deleted even after disabling it"))
g.log.info("gluster_shared_storage volume deleted"
" successfully")
def _is_shared_storage_mounted_on_the_nodes(self, brick_details, mounted):
"""
Checks if the shared storage is mounted on the nodes where it is
created.
"""
for node in brick_details:
ret = is_shared_volume_mounted(node.split(":")[0])
if mounted:
self.assertTrue(ret, ("Shared volume not mounted even after"
" enabling it"))
g.log.info("Shared volume mounted successfully")
else:
self.assertFalse(ret, ("Shared volume not unmounted even"
" after disabling it"))
g.log.info("Shared volume unmounted successfully")
def _get_all_bricks(self):
"""Get all bricks where the shared storage is mounted"""
brick_list = get_all_bricks(self.mnode, "gluster_shared_storage")
self.assertIsNotNone(brick_list, "Unable to fetch brick list of shared"
" storage")
return brick_list
def _shared_storage_test_without_node_reboot(self):
"""Shared storge testcase till the node reboot scenario"""
# Enable shared storage and check it is present on the cluster
self._enable_and_check_shared_storage()
# Get all the bricks where shared storage is mounted
brick_list = self._get_all_bricks()
# Check the shared volume is mounted on the nodes where it is created
self._is_shared_storage_mounted_on_the_nodes(brick_details=brick_list,
mounted=True)
# Disable shared storage and check it is not present on the cluster
self._disable_and_check_shared_storage()
# Check the shared volume is unmounted on the nodes where it is created
self._is_shared_storage_mounted_on_the_nodes(brick_details=brick_list,
mounted=False)
# Create a volume with name gluster_shared_storage
volume = "gluster_shared_storage"
bricks_list = form_bricks_list(self.mnode, volume, 2, self.servers,
self.all_servers_info)
count = 0
while count < 20:
ret, _, _ = volume_create(self.mnode, volume, bricks_list, True)
if not ret:
break
sleep(2)
count += 1
self.assertEqual(ret, 0, "Failed to create volume")
g.log.info("Volume create is success")
# Disable the shared storage should fail
ret = disable_shared_storage(self.mnode)
self.assertFalse(ret, ("Unexpected: Successfully disabled"
" shared-storage"))
g.log.info("Volume set: failed as expected")
# Check volume list to confirm gluster_shared_storage
# is not deleted which was created before
vol_list = get_volume_list(self.mnode)
_rc = False
for vol in vol_list:
if vol == "gluster_shared_storage":
_rc = True
break
self.assertTrue(_rc, ("gluster_shared_storage volume got"
" deleted after disabling it"))
g.log.info("gluster_shared_storage volume not deleted as "
" expected after disabling enable-shared-storage")
# Delete the volume created
ret = volume_delete(self.mnode, volume)
self.assertTrue(ret, ("Failed to cleanup the Volume "
"%s", volume))
g.log.info("Volume deleted successfully : %s", volume)
# Enable shared storage and check it is present on the cluster
self._enable_and_check_shared_storage()
# Check the shared volume is mounted on the nodes where it is created
self._is_shared_storage_mounted_on_the_nodes(brick_details=brick_list,
mounted=True)
# Disable shared storage and check it is not present on the cluster
self._disable_and_check_shared_storage()
# Check the shared volume is unmounted on the nodes where it is created
self._is_shared_storage_mounted_on_the_nodes(brick_details=brick_list,
mounted=False)
def test_shared_storage(self):
"""
This test case includes:
-> Enable a shared storage
-> Disable a shared storage
-> Create volume of any type with
name gluster_shared_storage
-> Disable the shared storage
-> Check, volume created in step-3 is
not deleted
-> Delete the volume
-> Enable the shared storage
-> Check volume with name gluster_shared_storage
is created
-> Disable the shared storage
-> Enable shared storage and validate whether it is mounted
-> Perform node reboot
-> Post reboot validate the bricks are mounted back or not
"""
# pylint: disable=too-many-statements, too-many-branches
self._shared_storage_test_without_node_reboot()
# Enable shared storage and check it is present on the cluster
self._enable_and_check_shared_storage()
# Get all the bricks where shared storage is mounted
brick_list = self._get_all_bricks()
# Check the shared volume is mounted on the nodes where it is created
self._is_shared_storage_mounted_on_the_nodes(brick_details=brick_list,
mounted=True)
# Perform node reboot on any of the nodes where the shared storage is
# mounted
node_to_reboot = choice(brick_list)
node_to_reboot = node_to_reboot.split(":")[0]
ret = reboot_nodes_and_wait_to_come_online(node_to_reboot)
self.assertTrue(ret, "Reboot Failed on node: "
"{}".format(node_to_reboot))
g.log.info("Node: %s rebooted successfully", node_to_reboot)
# Post reboot checking peers are connected
count = 0
while count < 10:
ret = self.validate_peers_are_connected()
if ret:
break
sleep(3)
count += 1
self.assertTrue(ret, "Peers are not in connected state.")
# Check the shared volume is mounted on the nodes where it is created
self._is_shared_storage_mounted_on_the_nodes(brick_details=brick_list,
mounted=True)
# Disable shared storage and check it is not present on the cluster
self._disable_and_check_shared_storage()
# Check the shared volume is unmounted on the nodes where it is created
self._is_shared_storage_mounted_on_the_nodes(brick_details=brick_list,
mounted=False)
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