def test_pvc_delete_and_verify_size_is_returned_to_backend_pool(
self, pause_cluster_load, pvc_factory, pod_factory
):
"""
Test case to verify after delete pvc size returned to backend pools
"""
cbp_name = helpers.default_ceph_block_pool()
# TODO: Get exact value of replica size
replica_size = 3
pvc_obj = pvc_factory(
interface=constants.CEPHBLOCKPOOL, size=10,
status=constants.STATUS_BOUND
)
pod_obj = pod_factory(
interface=constants.CEPHBLOCKPOOL, pvc=pvc_obj,
status=constants.STATUS_RUNNING
)
pvc_obj.reload()
used_before_io = fetch_used_size(cbp_name)
logger.info(f"Used before IO {used_before_io}")
# Write 6Gb
pod.run_io_and_verify_mount_point(pod_obj, bs='10M', count='600')
exp_size = used_before_io + (6 * replica_size)
used_after_io = fetch_used_size(cbp_name, exp_size)
logger.info(f"Used space after IO {used_after_io}")
rbd_image_id = pvc_obj.image_uuid
pod_obj.delete()
pod_obj.ocp.wait_for_delete(resource_name=pod_obj.name)
pvc_obj.delete()
pvc_obj.ocp.wait_for_delete(resource_name=pvc_obj.name)
verify_pv_not_exists(
pvc_obj, cbp_name, rbd_image_id
)
used_after_deleting_pvc = fetch_used_size(cbp_name, used_before_io)
logger.info(f"Used after deleting PVC {used_after_deleting_pvc}")
def test_disruptive_during_pod_pvc_deletion_and_io(self, interface,
resource_to_delete,
setup_base):
"""
Delete ceph/rook pod while PVCs deletion, pods deletion and IO are
progressing
"""
pvc_objs, pod_objs, rwx_pod_objs = setup_base
namespace = pvc_objs[0].project.namespace
num_of_pods_to_delete = 10
num_of_io_pods = 5
# Select pods to be deleted
pods_to_delete = pod_objs[:num_of_pods_to_delete]
pods_to_delete.extend([
pod for pod in rwx_pod_objs for pod_obj in pods_to_delete
if (pod_obj.pvc == pod.pvc)
])
# Select pods to run IO
io_pods = pod_objs[num_of_pods_to_delete:num_of_pods_to_delete +
num_of_io_pods]
io_pods.extend([
pod for pod in rwx_pod_objs for pod_obj in io_pods
if (pod_obj.pvc == pod.pvc)
])
# Select pods which are having PVCs to delete
pods_for_pvc = pod_objs[num_of_pods_to_delete + num_of_io_pods:]
pvcs_to_delete = [pod_obj.pvc for pod_obj in pods_for_pvc]
pods_for_pvc.extend([
pod for pod in rwx_pod_objs for pod_obj in pods_for_pvc
if (pod_obj.pvc == pod.pvc)
])
log.info(f"{len(pods_to_delete)} pods selected for deletion in which "
f"{len(pods_to_delete) - num_of_pods_to_delete} pairs of pod "
f"share same RWX PVC")
log.info(f"{len(io_pods)} pods selected for running IO in which "
f"{len(io_pods) - num_of_io_pods} pairs of pod share same "
f"RWX PVC")
no_of_rwx_pvcs_delete = len(pods_for_pvc) - len(pvcs_to_delete)
log.info(f"{len(pvcs_to_delete)} PVCs selected for deletion. "
f"RWO PVCs: {len(pvcs_to_delete) - no_of_rwx_pvcs_delete}, "
f"RWX PVCs: {no_of_rwx_pvcs_delete}")
pod_functions = {
'mds': partial(get_mds_pods),
'mon': partial(get_mon_pods),
'mgr': partial(get_mgr_pods),
'osd': partial(get_osd_pods),
'rbdplugin': partial(get_plugin_pods, interface=interface),
'cephfsplugin': partial(get_plugin_pods, interface=interface),
'cephfsplugin_provisioner':
partial(get_cephfsplugin_provisioner_pods),
'rbdplugin_provisioner': partial(get_rbdfsplugin_provisioner_pods),
'operator': partial(get_operator_pods)
}
disruption = disruption_helpers.Disruptions()
disruption.set_resource(resource=resource_to_delete)
executor = ThreadPoolExecutor(max_workers=len(pod_objs) +
len(rwx_pod_objs))
# Get number of pods of type 'resource_to_delete'
num_of_resource_to_delete = len(pod_functions[resource_to_delete]())
# Fetch the number of Pods and PVCs
initial_num_of_pods = len(get_all_pods(namespace=namespace))
initial_num_of_pvc = len(get_all_pvcs(namespace=namespace)['items'])
# Fetch PV names to verify after deletion
pv_objs = []
for pvc_obj in pvcs_to_delete:
pvc_obj.reload()
pv_objs.append(pvc_obj.backed_pv_obj)
# Fetch volume details from pods for the purpose of verification
node_pv_dict = {}
for pod_obj in pods_to_delete:
pod_info = pod_obj.get()
node = pod_info['spec']['nodeName']
pvc = pod_info['spec']['volumes'][0]['persistentVolumeClaim'][
'claimName']
for pvc_obj in pvc_objs:
if pvc_obj.name == pvc:
pvc_obj.reload()
pv = pvc_obj.backed_pv
break
if node in node_pv_dict:
node_pv_dict[node].append(pv)
else:
node_pv_dict[node] = [pv]
# Fetch image uuid associated with PVCs to be deleted
pvc_uuid_map = {}
for pvc_obj in pvcs_to_delete:
pvc_uuid_map[pvc_obj.name] = pvc_obj.image_uuid
log.info("Fetched image uuid associated with each PVC")
# Do setup on pods for running IO
log.info("Setting up pods for running IO.")
for pod_obj in pod_objs + rwx_pod_objs:
pvc_info = pod_obj.pvc.get()
if pvc_info['spec']['volumeMode'] == 'Block':
storage_type = 'block'
else:
storage_type = 'fs'
executor.submit(pod_obj.workload_setup, storage_type=storage_type)
# Wait for setup on pods to complete
for pod_obj in pod_objs + rwx_pod_objs:
log.info(f"Waiting for IO setup to complete on pod {pod_obj.name}")
for sample in TimeoutSampler(180, 2, getattr, pod_obj,
'wl_setup_done'):
if sample:
log.info(f"Setup for running IO is completed on pod "
f"{pod_obj.name}.")
break
log.info("Setup for running IO is completed on all pods.")
# Start IO on pods having PVCs to delete to load data
log.info("Starting IO on pods having PVCs to delete.")
self.run_io_on_pods(pods_for_pvc)
log.info("IO started on pods having PVCs to delete.")
log.info("Fetching IO results from the pods having PVCs to delete.")
for pod_obj in pods_for_pvc:
get_fio_rw_iops(pod_obj)
log.info("Verified IO result on pods having PVCs to delete.")
# Delete pods having PVCs to delete.
delete_pods(pods_for_pvc)
for pod_obj in pods_for_pvc:
pod_obj.ocp.wait_for_delete(pod_obj.name)
log.info("Verified: Deleted pods which are having PVCs to delete.")
# Start IO on pods to be deleted
log.info("Starting IO on pods to be deleted.")
self.run_io_on_pods(pods_to_delete)
log.info("IO started on pods to be deleted.")
# Start deleting PVCs
pvc_bulk_delete = executor.submit(delete_pvcs, pvcs_to_delete)
log.info("Started deleting PVCs")
# Start deleting pods
pod_bulk_delete = executor.submit(delete_pods,
pods_to_delete,
wait=False)
log.info("Started deleting pods")
# Start IO on IO pods
self.run_io_on_pods(io_pods)
log.info("Started IO on IO pods")
# Verify pvc deletion has started
pvc_deleting = executor.submit(wait_for_resource_count_change,
func_to_use=get_all_pvcs,
previous_num=initial_num_of_pvc,
namespace=namespace,
change_type='decrease',
min_difference=1,
timeout=30,
interval=0.01)
# Verify pod deletion has started
pod_deleting = executor.submit(wait_for_resource_count_change,
func_to_use=get_all_pods,
previous_num=initial_num_of_pods,
namespace=namespace,
change_type='decrease',
min_difference=1,
timeout=30,
interval=0.01)
assert pvc_deleting.result(), (
"Wait timeout: PVCs are not being deleted.")
log.info("PVCs deletion has started.")
assert pod_deleting.result(), (
"Wait timeout: Pods are not being deleted.")
log.info("Pods deletion has started.")
# Delete pod of type 'resource_to_delete'
disruption.delete_resource()
pod_bulk_delete.result()
# Verify pods are deleted
for pod_obj in pods_to_delete:
pod_obj.ocp.wait_for_delete(pod_obj.name, 300)
log.info("Verified: Pods are deleted.")
# Verify that the mount point is removed from nodes after deleting pod
node_pv_mounted = verify_pv_mounted_on_node(node_pv_dict)
for node, pvs in node_pv_mounted.items():
assert not pvs, (
f"PVs {pvs} is still present on node {node} after "
f"deleting the pods.")
log.info(
"Verified: mount points are removed from nodes after deleting "
"the pods")
pvcs_deleted = pvc_bulk_delete.result()
assert pvcs_deleted, "Deletion of PVCs failed."
# Verify PVCs are deleted
for pvc_obj in pvcs_to_delete:
pvc_obj.ocp.wait_for_delete(pvc_obj.name)
log.info("Verified: PVCs are deleted.")
# Verify PVs are deleted
for pv_obj in pv_objs:
pv_obj.ocp.wait_for_delete(resource_name=pv_obj.name, timeout=300)
log.info("Verified: PVs are deleted.")
# Verify PV using ceph toolbox. Image/Subvolume should be deleted.
pool_name = default_ceph_block_pool()
for pvc_name, uuid in pvc_uuid_map.items():
if interface == constants.CEPHBLOCKPOOL:
ret = verify_volume_deleted_in_backend(interface=interface,
image_uuid=uuid,
pool_name=pool_name)
if interface == constants.CEPHFILESYSTEM:
ret = verify_volume_deleted_in_backend(interface=interface,
image_uuid=uuid)
assert ret, (f"Volume associated with PVC {pvc_name} still exists "
f"in backend")
log.info("Fetching IO results from the pods.")
for pod_obj in io_pods:
fio_result = pod_obj.get_fio_results()
err_count = fio_result.get('jobs')[0].get('error')
assert err_count == 0, (
f"FIO error on pod {pod_obj.name}. FIO result: {fio_result}")
log.info("Verified IO result on pods.")
# Verify number of pods of type 'resource_to_delete'
final_num_resource_to_delete = len(pod_functions[resource_to_delete]())
assert final_num_resource_to_delete == num_of_resource_to_delete, (
f"Total number of {resource_to_delete} pods is not matching with "
f"initial value. Total number of pods before deleting a pod: "
f"{num_of_resource_to_delete}. Total number of pods present now: "
f"{final_num_resource_to_delete}")
# Check ceph status
ceph_health_check(namespace=config.ENV_DATA['cluster_namespace'])
log.info("Ceph cluster health is OK")
def test_ceph_daemon_kill_during_pod_pvc_deletion(self, interface,
operation_to_disrupt,
resource_name,
setup_base):
"""
Kill 'resource_name' daemon while deletion of PVCs/pods is progressing
"""
pvc_objs, self.pod_objs = setup_base
self.namespace = pvc_objs[0].project.namespace
pod_functions = {
'mds': partial(get_mds_pods),
'mon': partial(get_mon_pods),
'mgr': partial(get_mgr_pods),
'osd': partial(get_osd_pods),
'rbdplugin': partial(get_plugin_pods, interface=interface),
'cephfsplugin': partial(get_plugin_pods, interface=interface),
'cephfsplugin_provisioner':
partial(get_cephfsplugin_provisioner_pods),
'rbdplugin_provisioner': partial(get_rbdfsplugin_provisioner_pods),
'operator': partial(get_operator_pods)
}
disruption = disruption_helpers.Disruptions()
disruption.set_resource(resource=resource_name)
executor = ThreadPoolExecutor(max_workers=1)
# Get number of pods of type 'resource_name'
num_of_resource_pods = len(pod_functions[resource_name]())
# Fetch the number of Pods and PVCs
initial_num_of_pods = len(get_all_pods(namespace=self.namespace))
initial_num_of_pvc = len(
get_all_pvcs(namespace=self.namespace)['items'])
# Fetch PV names
pv_objs = []
for pvc_obj in pvc_objs:
pvc_obj.reload()
pv_objs.append(pvc_obj.backed_pv_obj)
# Fetch volume details from pods for the purpose of verification
node_pv_dict = {}
for pod_obj in self.pod_objs:
pod_info = pod_obj.get()
node = pod_info['spec']['nodeName']
pvc = pod_info['spec']['volumes'][0]['persistentVolumeClaim'][
'claimName']
for pvc_obj in pvc_objs:
if pvc_obj.name == pvc:
pvc_obj.reload()
pv = pvc_obj.backed_pv
break
if node in node_pv_dict:
node_pv_dict[node].append(pv)
else:
node_pv_dict[node] = [pv]
# Do setup for running IO on pods
log.info("Setting up pods for running IO")
for pod_obj in self.pod_objs:
pod_obj.workload_setup(storage_type='fs')
log.info("Setup for running IO is completed on pods")
# Start IO on each pod. RWX PVC will be used on two pods. So split the
# size accordingly
log.info("Starting IO on pods")
for pod_obj in self.pod_objs:
if pod_obj.pvc.access_mode == constants.ACCESS_MODE_RWX:
io_size = int((self.pvc_size - 1) / 2)
else:
io_size = self.pvc_size - 1
pod_obj.run_io(storage_type='fs',
size=f'{io_size}G',
fio_filename=f'{pod_obj.name}_io')
log.info("IO started on all pods.")
# Set the daemon to be killed
disruption.select_daemon()
# Start deleting pods
pod_bulk_delete = executor.submit(delete_pods,
self.pod_objs,
wait=False)
if operation_to_disrupt == 'delete_pods':
ret = wait_for_resource_count_change(get_all_pods,
initial_num_of_pods,
self.namespace, 'decrease', 1,
60)
assert ret, "Wait timeout: Pods are not being deleted."
log.info("Pods deletion has started.")
disruption.kill_daemon()
pod_bulk_delete.result()
# Verify pods are deleted
for pod_obj in self.pod_objs:
assert pod_obj.ocp.wait_for_delete(
pod_obj.name, 180), (f"Pod {pod_obj.name} is not deleted")
log.info("Verified: Pods are deleted.")
# Verify that the mount point is removed from nodes after deleting pod
for node, pvs in node_pv_dict.items():
cmd = f'oc debug nodes/{node} -- df'
df_on_node = run_cmd(cmd)
for pv in pvs:
assert pv not in df_on_node, (
f"{pv} is still present on node {node} after "
f"deleting the pods.")
log.info(
"Verified: mount points are removed from nodes after deleting "
"the pods.")
# Fetch image uuid associated with PVCs
pvc_uuid_map = {}
for pvc_obj in pvc_objs:
pvc_uuid_map[pvc_obj.name] = pvc_obj.image_uuid
log.info("Fetched image uuid associated with each PVC")
# Start deleting PVCs
pvc_bulk_delete = executor.submit(delete_pvcs, pvc_objs)
if operation_to_disrupt == 'delete_pvcs':
ret = wait_for_resource_count_change(get_all_pvcs,
initial_num_of_pvc,
self.namespace, 'decrease')
assert ret, "Wait timeout: PVCs are not being deleted."
log.info("PVCs deletion has started.")
disruption.kill_daemon()
pvcs_deleted = pvc_bulk_delete.result()
assert pvcs_deleted, "Deletion of PVCs failed."
# Verify PVCs are deleted
for pvc_obj in pvc_objs:
assert pvc_obj.ocp.wait_for_delete(
pvc_obj.name), (f"PVC {pvc_obj.name} is not deleted")
log.info("Verified: PVCs are deleted.")
# Verify PVs are deleted
for pv_obj in pv_objs:
assert pv_obj.ocp.wait_for_delete(
pv_obj.name, 120), (f"PV {pv_obj.name} is not deleted")
log.info("Verified: PVs are deleted.")
# Verify PV using ceph toolbox. Image/Subvolume should be deleted.
pool_name = default_ceph_block_pool()
for pvc_name, uuid in pvc_uuid_map.items():
if interface == constants.CEPHBLOCKPOOL:
ret = verify_volume_deleted_in_backend(interface=interface,
image_uuid=uuid,
pool_name=pool_name)
if interface == constants.CEPHFILESYSTEM:
ret = verify_volume_deleted_in_backend(interface=interface,
image_uuid=uuid)
assert ret, (f"Volume associated with PVC {pvc_name} still exists "
f"in backend")
# Verify number of pods of type 'resource_name'
final_num_of_resource_pods = len(pod_functions[resource_name]())
assert final_num_of_resource_pods == num_of_resource_pods, (
f"Total number of {resource_name} pods is not matching with "
f"initial value. Total number of pods before daemon kill: "
f"{num_of_resource_pods}. Total number of pods present now: "
f"{final_num_of_resource_pods}")
# Check ceph status
ceph_health_check(namespace=config.ENV_DATA['cluster_namespace'])
log.info("Ceph cluster health is OK")
def test_change_reclaim_policy_of_pv(self, interface, reclaim_policy,
pod_factory):
"""
This test case tests update of reclaim policy of PV
"""
reclaim_policy_to = 'Delete' if reclaim_policy == 'Retain' else (
'Retain')
# Fetch name of PVs
pvs = [pvc_obj.backed_pv_obj for pvc_obj in self.pvc_objs]
# Fetch image uuid associated with PVCs
pvc_uuid_map = {}
for pvc_obj in self.pvc_objs:
pvc_uuid_map[pvc_obj.name] = pvc_obj.image_uuid
log.info("Fetched image uuid associated with each PVC")
# Select PVs to change reclaim policy
changed_pvs = pvs[:5]
# Run IO on pods
self.run_and_verify_io(self.pod_objs)
log.info("Verified IO result on pods.")
# Change relaimPolicy to 'reclaim_policy_to'
for pv_obj in changed_pvs:
pv_name = pv_obj.name
patch_param = (f'{{"spec":{{"persistentVolumeReclaimPolicy":'
f'"{reclaim_policy_to}"}}}}')
assert pv_obj.ocp.patch(
resource_name=pv_name,
params=patch_param,
format_type='strategic'), (
f"Failed to change persistentVolumeReclaimPolicy of pv "
f"{pv_name} to {reclaim_policy_to}")
log.info(f"Changed persistentVolumeReclaimPolicy of pv {pv_name} "
f"to {reclaim_policy_to}")
retain_pvs = []
delete_pvs = []
# Verify reclaim policy of all PVs
for pv_obj in pvs:
policy = pv_obj.get().get('spec').get(
'persistentVolumeReclaimPolicy')
retain_pvs.append(pv_obj) if policy == 'Retain' else (
delete_pvs.append(pv_obj))
if pv_obj in changed_pvs:
assert policy == reclaim_policy_to, (
f"Reclaim policy of {pv_obj.name} is {policy}. "
f"It has not changed to {reclaim_policy_to}")
else:
assert policy == reclaim_policy, (
f"Reclaim policy of {pv_obj.name} is {policy} instead "
f"of {reclaim_policy}.")
log.info("Verified reclaim policy of all PVs")
# Run IO on pods
self.run_and_verify_io(self.pod_objs, do_setup=False)
log.info("Ran and verified IO on pods after changing reclaim policy.")
# Delete all pods
log.info("Deleting all pods")
for pod_obj in self.pod_objs:
pod_obj.delete()
# Verify pods are deleted
for pod_obj in self.pod_objs:
pod_obj.ocp.wait_for_delete(pod_obj.name, 300)
log.info("Verified: Pods are deleted.")
# Create new pods mounting one volume on each pod
log.info("Creating new pods.")
new_pod_objs = []
for pvc_obj in self.pvc_objs:
new_pod_objs.append(
pod_factory(interface=interface, pvc=pvc_obj, status=None))
for pod in new_pod_objs:
wait_for_resource_state(pod, constants.STATUS_RUNNING)
pod.reload()
# Run IO on new pods
self.run_and_verify_io(new_pod_objs)
log.info("Ran and verified IO on new pods.")
# Delete all pods
log.info("Deleting all new pods.")
for pod_obj in new_pod_objs:
pod_obj.delete()
# Verify pods are deleted
for pod_obj in new_pod_objs:
pod_obj.ocp.wait_for_delete(pod_obj.name, 300)
log.info("Verified: All new pods are deleted.")
# Delete PVCs
log.info("Deleting all PVCs.")
for pvc_obj in self.pvc_objs:
pvc_obj.delete()
# Verify PVCs are deleted
for pvc_obj in self.pvc_objs:
pvc_obj.ocp.wait_for_delete(pvc_obj.name, 300)
log.info("Verified: All PVCs are deleted")
# PVs having reclaim policy 'Delete' will be deleted
for pv_obj in delete_pvs:
pv_obj.ocp.wait_for_delete(pv_obj.name, 300)
log.info(
"Verified: All PVs having reclaim policy 'Delete' are deleted.")
# PVs having reclaim policy 'Retain' will be in Released state
for pv_obj in retain_pvs:
wait_for_resource_state(resource=pv_obj,
state=constants.STATUS_RELEASED)
log.info("Verified: All PVs having reclaim policy 'Retain' are "
"in 'Released' state.")
# Change relaimPolicy to Delete
for pv_obj in retain_pvs:
pv_name = pv_obj.name
patch_param = '{"spec":{"persistentVolumeReclaimPolicy":"Delete"}}'
assert pv_obj.ocp.patch(
resource_name=pv_name,
params=patch_param,
format_type='strategic'), (
f"Failed to change persistentVolumeReclaimPolicy "
f"for pv {pv_name} to Delete")
log.info("Changed reclaim policy of all remaining PVs to Delete")
# Verify PVs deleted. PVs will be deleted immediately after setting
# reclaim policy to Delete
for pv_obj in retain_pvs:
pv_obj.ocp.wait_for_delete(pv_obj.name, 300)
log.info(
"Verified: All remaining PVs are deleted after changing reclaim "
"policy to Delete.")
# Verify PV using ceph toolbox. Wait for Image/Subvolume to be deleted.
pool_name = default_ceph_block_pool(
) if interface == constants.CEPHBLOCKPOOL else None
for pvc_name, uuid in pvc_uuid_map.items():
try:
for ret in TimeoutSampler(180,
2,
verify_volume_deleted_in_backend,
interface=interface,
image_uuid=uuid,
pool_name=pool_name):
if ret:
break
except TimeoutExpiredError as err:
err.message = (
f"{err.message}- Volume associated with PVC {pvc_name} "
f"still exists in backend")
raise
log.info("Verified: Image/Subvolume removed from backend.")
def test_multiple_pvc_concurrent_creation_deletion(self, interface,
multi_pvc_factory):
"""
To exercise resource creation and deletion
"""
proj_obj = self.pvc_objs[0].project
executor = ThreadPoolExecutor(max_workers=1)
# Get PVs
pv_objs = []
for pvc in self.pvc_objs:
pv_objs.append(pvc.backed_pv_obj)
# Fetch image uuid associated with PVCs
pvc_uuid_map = {}
for pvc_obj in self.pvc_objs:
pvc_uuid_map[pvc_obj.name] = pvc_obj.image_uuid
log.info("Fetched image uuid associated with each PVC")
# Start deleting 100 PVCs
log.info('Start deleting PVCs.')
pvc_delete = executor.submit(delete_pvcs, self.pvc_objs)
# Create 100 PVCs
log.info('Start creating new PVCs')
self.new_pvc_objs = multi_pvc_factory(interface=interface,
project=proj_obj,
size=self.pvc_size,
access_modes=self.access_modes,
status='',
num_of_pvc=self.num_of_pvcs,
wait_each=False)
for pvc_obj in self.new_pvc_objs:
wait_for_resource_state(pvc_obj, constants.STATUS_BOUND)
pvc_obj.reload()
log.info(f'Newly created {self.num_of_pvcs} PVCs are in Bound state.')
# Verify PVCs are deleted
res = pvc_delete.result()
assert res, 'Deletion of PVCs failed'
log.info('PVC deletion was successful.')
for pvc in self.pvc_objs:
pvc.ocp.wait_for_delete(resource_name=pvc.name)
log.info(f'Successfully deleted initial {self.num_of_pvcs} PVCs')
# Verify PVs are deleted
for pv_obj in pv_objs:
pv_obj.ocp.wait_for_delete(resource_name=pv_obj.name, timeout=180)
log.info(f'Successfully deleted initial {self.num_of_pvcs} PVs')
# Verify PV using ceph toolbox. Image/Subvolume should be deleted.
for pvc_name, uuid in pvc_uuid_map.items():
pool_name = None
if interface == constants.CEPHBLOCKPOOL:
pool_name = default_ceph_block_pool()
ret = verify_volume_deleted_in_backend(interface=interface,
image_uuid=uuid,
pool_name=pool_name)
assert ret, (f"Volume associated with PVC {pvc_name} still exists "
f"in backend")
# Verify status of nodes
for node in get_node_objs():
node_status = node.ocp.get_resource_status(node.name)
assert (node_status == constants.NODE_READY), (
f"Node {node.name} is in {node_status} state.")
