def has_new_mpath_devs():
"""
Determine new multipath devices
:return: List of new multipath devices
"""
cur_mpath_devs = mpath.find_mpath_devs()
return list(set(cur_mpath_devs).difference(set(old_mpath_devs)))
def run(test, params, env):
vd_formats = []
disk_devices = []
driver_names = []
driver_types = []
device_targets = []
target_buses = []
wwnns = []
wwpns = []
vm_names = params.get("vms", "avocado-vt-vm1 avocado-vt-vm2").split()
fc_host_dir = params.get("fc_host_dir", "/sys/class/fc_host")
vm0_disk_type = params.get("vm0_disk_type", "block")
vm1_disk_type = params.get("vm1_disk_type", "block")
vm0_vd_format = params.get("vm0_vd_format", "by_path")
vm1_vd_format = params.get("vm1_vd_foramt", "by_path")
vm0_disk_device = vm1_disk_device = params.get("disk_device", "disk")
vm0_driver_name = vm1_driver_name = params.get("driver_name", "qemu")
vm0_driver_type = vm1_driver_type = params.get("driver_type", "qcow2")
vm0_device_target = vm1_device_target = params.get("device_target", "vda")
vm0_target_bus = vm1_target_bus = params.get("target_bus", "virtio")
vm0_wwnn = params.get("vm0_wwnn", "ENTER.WWNN.FOR.VM0")
vm0_wwpn = params.get("vm0_wwpn", "ENTER.WWPN.FOR.VM0")
vm1_wwnn = params.get("vm1_wwnn", "ENTER.WWNN.FOR.VM1")
vm1_wwpn = params.get("vm1_wwpn", "ENTER.WWPN.FOR.VM1")
disk_types = [vm0_disk_type, vm1_disk_type]
vd_formats = [vm0_vd_format, vm1_vd_format]
disk_devices = [vm0_disk_device, vm1_disk_device]
driver_names = [vm0_driver_name, vm1_driver_name]
driver_types = [vm0_driver_type, vm1_driver_type]
device_targets = [vm0_device_target, vm1_device_target]
target_buses = [vm0_target_bus, vm1_target_bus]
wwnns = [vm0_wwnn, vm1_wwnn]
wwpns = [vm0_wwpn, vm1_wwpn]
old_mpath_conf = ""
mpath_conf_path = "/etc/multipath.conf"
original_mpath_conf_exist = os.path.exists(mpath_conf_path)
new_vhbas = []
path_to_blks = []
vmxml_backups = []
vms = []
try:
online_hbas = utils_npiv.find_hbas("hba")
if not online_hbas:
test.cancel("There is no online hba cards.")
old_mpath_conf = utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
replace_existing=True)
first_online_hba = online_hbas[0]
if len(vm_names) != 2:
test.cancel("This test needs exactly 2 vms.")
for vm_index in range(len(vm_names)):
logging.debug("prepare vm %s", vm_names[vm_index])
vm = env.get_vm(vm_names[vm_index])
vms.append(vm)
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_names[vm_index])
vmxml_backup = vmxml.copy()
vmxml_backups.append(vmxml_backup)
old_vhbas = utils_npiv.find_hbas("vhba")
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml(
{"nodedev_parent": first_online_hba,
"scsi_wwnn": wwnns[vm_index],
"scsi_wwpn": wwpns[vm_index]})
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT*2)
if not new_vhba:
test.fail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
if vd_formats[vm_index] == "mpath":
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_TIMEOUT*5)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
test.fail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s",
new_mpath_devs)
path_to_blk = os.path.join(_MPATH_DIR, new_mpath_devs[0])
elif vd_formats[vm_index] == "by_path":
new_vhba_scsibus = re.sub("\D", "", new_vhba)
utils_misc.wait_for(lambda: get_blks_by_scsi(test, new_vhba_scsibus),
timeout=_TIMEOUT)
new_blks = get_blks_by_scsi(test, new_vhba_scsibus)
if not new_blks:
test.fail("blk dev not found with scsi_%s" % new_vhba_scsibus)
first_blk_dev = new_blks[0]
utils_misc.wait_for(
lambda: get_symbols_by_blk(test, first_blk_dev),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(test, first_blk_dev)
if not lun_sl:
test.fail("lun symbolic links not found in "
"/dev/disk/by-path/ for %s" %
first_blk_dev)
lun_dev = lun_sl[0]
path_to_blk = os.path.join(_BYPATH_DIR, lun_dev)
path_to_blks.append(path_to_blk)
img_src = vm.get_first_disk_devices()['source']
img_info = utils_misc.get_image_info(img_src)
src_fmt = img_info["format"]
dest_fmt = "qcow2"
convert_img_to_dev(test, src_fmt, dest_fmt, img_src, path_to_blk)
disk_obj = prepare_disk_obj(disk_types[vm_index], disk_devices[vm_index],
driver_names[vm_index], driver_types[vm_index],
path_to_blk, device_targets[vm_index],
target_buses[vm_index])
replace_vm_first_vd(vm_names[vm_index], disk_obj)
if vm.is_dead():
logging.debug("Start vm %s with updated vda", vm_names[vm_index])
vm.start()
# concurrently create file in vm with threads
create_file_in_vm_threads = []
for vm in vms:
cli_t = threading.Thread(target=create_file_in_vm,
args=(vm, _VM_FILE_PATH, vm.name, _REPEAT,)
)
logging.debug("Start creating file in vm: %s", vm.name)
create_file_in_vm_threads.append(cli_t)
cli_t.start()
for thrd in create_file_in_vm_threads:
thrd.join()
# reboot vm and check if previously create file still exist with
# correct content
for vm in vms:
session = vm.wait_for_login()
session.cmd_status_output("sync")
if vm.is_alive:
vm.destroy(gracefully=True)
else:
test.fail("%s is not running" % vm.name)
vm.start()
session = vm.wait_for_login()
if check_file_in_vm(session, _VM_FILE_PATH, vm.name, _REPEAT):
logging.debug("file exists after reboot with correct content")
else:
test.fail("Failed to check the test file in vm")
session.close()
except Exception as detail:
test.fail("Test failed with exception: %s" % detail)
finally:
logging.debug("Start to clean up env...")
for vmxml_backup in vmxml_backups:
vmxml_backup.sync()
for new_vhba in new_vhbas:
virsh.nodedev_destroy(new_vhba)
process.system('service multipathd restart', verbose=True)
if old_mpath_conf:
utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
conf_content=old_mpath_conf,
replace_existing=True)
if not original_mpath_conf_exist and os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
def run(test, params, env):
"""
1. prepare a fc lun with one of following methods
- create a scsi pool&vol
- create a vhba
2. prepare the virtual disk xml, as one of following
- source = /dev/disk/by-path
- source = /dev/mapper/mpathX
- source = pool&vol format
3. start a vm with above disk as vdb
4. create disk-only snapshot of vdb
5. check the snapshot-list and snapshot file's existence
6. mount vdb and touch file to it
7. revert the snapshot and check file's existence
8. delete snapshot
9. cleanup env.
"""
vm_name = params.get("main_vm", "avocado-vt-vm1")
wwpn = params.get("wwpn", "WWPN_EXAMPLE")
wwnn = params.get("wwnn", "WWNN_EXAMPLE")
disk_device = params.get("disk_device", "disk")
disk_type = params.get("disk_type", "file")
disk_size = params.get("disk_size", "100M")
device_target = params.get("device_target", "vdb")
driver_name = params.get("driver_name", "qemu")
driver_type = params.get("driver_type", "raw")
target_bus = params.get("target_bus", "virtio")
vd_format = params.get("vd_format", "")
snapshot_dir = params.get("snapshot_dir", "/tmp")
snapshot_name = params.get("snapshot_name", "s1")
pool_name = params.get("pool_name", "")
pool_target = params.get("pool_target", "/dev")
snapshot_disk_only = "yes" == params.get("snapshot_disk_only", "no")
new_vhbas = []
current_vhbas = []
new_vhba = []
path_to_blk = ""
lun_sl = []
new_disk = ""
pool_ins = None
old_mpath_conf = ""
mpath_conf_path = "/etc/multipath.conf"
original_mpath_conf_exist = os.path.exists(mpath_conf_path)
vm = env.get_vm(vm_name)
online_hbas = utils_npiv.find_hbas("hba")
if not online_hbas:
raise exceptions.TestSkipError("There is no online hba cards.")
old_mpath_conf = utils_npiv.prepare_multipath_conf(
conf_path=mpath_conf_path, replace_existing=True)
first_online_hba = online_hbas[0]
old_vhbas = utils_npiv.find_hbas("vhba")
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
virt_vm = libvirt_vm.VM(vm_name, vm.params, vm.root_dir, vm.address_cache)
old_disks = virt_vm.get_disks()
if vm.is_alive():
vm.destroy(gracefully=False)
if pool_name:
pool_ins = libvirt_storage.StoragePool()
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
try:
# prepare a fc lun
if vd_format in ['scsi_vol']:
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
prepare_scsi_pool(pool_name, wwnn, wwpn, first_online_hba,
pool_target)
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT)
if not utils_npiv.is_vhbas_added(old_vhbas):
raise exceptions.TestFail("vHBA not successfully created")
current_vhbas = utils_npiv.find_hbas("vhba")
new_vhba = list(set(current_vhbas).difference(set(old_vhbas)))[0]
new_vhbas.append(new_vhba)
new_vhba_scsibus = re.sub("\D", "", new_vhba)
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
new_blks = get_blks_by_scsi(new_vhba_scsibus)
if not new_blks:
raise exceptions.TestFail(
"block device not found with scsi_%s", new_vhba_scsibus)
vol_list = utlv.get_vol_list(pool_name,
vol_check=True,
timeout=_TIMEOUT * 3)
path_to_blk = list(vol_list.values())[0]
elif vd_format in ['mpath', 'by_path']:
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": first_online_hba,
"scsi_wwnn": wwnn,
"scsi_wwpn": wwpn
})
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT * 2)
if not new_vhba:
raise exceptions.TestFail("vHBA not successfully generated.")
new_vhbas.append(new_vhba)
if vd_format == "mpath":
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_TIMEOUT * 5)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(
set(cur_mpath_devs).difference(set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s",
new_mpath_devs)
path_to_blk = "/dev/mapper/" + new_mpath_devs[0]
elif vd_format == "by_path":
new_vhba_scsibus = re.sub("\D", "", new_vhba)
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
new_blks = get_blks_by_scsi(new_vhba_scsibus)
if not new_blks:
raise exceptions.TestFail("blk dev not found with scsi_%s",
new_vhba_scsibus)
first_blk_dev = new_blks[0]
utils_misc.wait_for(lambda: get_symbols_by_blk(first_blk_dev),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(first_blk_dev)
if not lun_sl:
raise exceptions.TestFail(
"lun symbolic links not found in "
"/dev/disk/by-path/ for %s" % first_blk_dev)
lun_dev = lun_sl[0]
path_to_blk = os.path.join(_BY_PATH_DIR, lun_dev)
else:
pass
else:
raise exceptions.TestSkipError("Not provided how to pass"
"virtual disk to VM.")
# create qcow2 file on the block device with specified size
if path_to_blk:
cmd = "qemu-img create -f qcow2 %s %s" % (path_to_blk, disk_size)
try:
process.run(cmd, shell=True)
except process.cmdError as detail:
raise exceptions.TestFail(
"Fail to create qcow2 on blk dev: %s", detail)
else:
raise exceptions.TestFail("Don't have a valid path to blk dev.")
# prepare disk xml
if "vol" in vd_format:
vol_list = utlv.get_vol_list(pool_name,
vol_check=True,
timeout=_TIMEOUT * 3)
test_vol = list(vol_list.keys())[0]
disk_params = {
'type_name': disk_type,
'target_dev': device_target,
'target_bus': target_bus,
'source_pool': pool_name,
'source_volume': test_vol,
'driver_type': driver_type
}
else:
disk_params = {
'type_name': disk_type,
'device': disk_device,
'driver_name': driver_name,
'driver_type': driver_type,
'source_file': path_to_blk,
'target_dev': device_target,
'target_bus': target_bus
}
if vm.is_alive():
vm.destroy(gracefully=False)
new_disk = disk.Disk()
new_disk.xml = open(utlv.create_disk_xml(disk_params)).read()
# start vm with the virtual disk
vmxml.devices = vmxml.devices.append(new_disk)
vmxml.sync()
vm.start()
session = vm.wait_for_login()
cur_disks = virt_vm.get_disks()
mount_disk = "".join(list(set(old_disks) ^ set(cur_disks)))
# mkfs and mount disk in vm, create a file on that disk.
if not mount_disk:
logging.debug("old_disk: %s, new_disk: %s", old_disks, cur_disks)
raise exceptions.TestFail("No new disk found in vm.")
mkfs_and_mount(session, mount_disk)
create_file_in_vm(session, "/mnt/before_snapshot.txt", "before")
# virsh snapshot-create-as vm s --disk-only --diskspec vda,file=path
if snapshot_disk_only:
vm_blks = list(vm.get_disk_devices().keys())
options = "%s --disk-only" % snapshot_name
for vm_blk in vm_blks:
snapshot_file = snapshot_dir + "/" + vm_blk + "." + snapshot_name
if os.path.exists(snapshot_file):
os.remove(snapshot_file)
options = options + " --diskspec %s,file=%s" % (vm_blk,
snapshot_file)
else:
options = snapshot_name
utlv.check_exit_status(virsh.snapshot_create_as(vm_name, options))
# check virsh snapshot-list
logging.debug("Running: snapshot-list %s", vm_name)
snapshot_list = virsh.snapshot_list(vm_name)
logging.debug("snapshot list is: %s", snapshot_list)
if not snapshot_list:
raise exceptions.TestFail("snapshots not found after creation.")
# snapshot-revert doesn't support external snapshot for now. so
# only check this with internal snapshot.
if not snapshot_disk_only:
create_file_in_vm(session, "/mnt/after_snapshot.txt", "after")
logging.debug("Running: snapshot-revert %s %s", vm_name,
snapshot_name)
utlv.check_exit_status(
virsh.snapshot_revert(vm_name, snapshot_name))
session = vm.wait_for_login()
file_existence, file_content = get_file_in_vm(
session, "/mnt/after_snapshot.txt")
logging.debug("file exist = %s, file content = %s", file_existence,
file_content)
if file_existence:
raise exceptions.TestFail("The file created "
"after snapshot still exists.")
file_existence, file_content = get_file_in_vm(
session, "/mnt/before_snapshot.txt")
logging.debug("file eixst = %s, file content = %s", file_existence,
file_content)
if ((not file_existence) or (file_content.strip() != "before")):
raise exceptions.TestFail("The file created "
"before snapshot is lost.")
# delete snapshots
# if diskonly, delete --metadata and remove files
# if not diskonly, delete snapshot
if snapshot_disk_only:
options = "--metadata"
else:
options = ""
for snap in snapshot_list:
logging.debug("deleting snapshot %s with options %s", snap,
options)
result = virsh.snapshot_delete(vm_name, snap, options)
logging.debug("result of snapshot-delete: %s",
result.stdout.strip())
if snapshot_disk_only:
vm_blks = list(vm.get_disk_devices().keys())
for vm_blk in vm_blks:
snapshot_file = snapshot_dir + "/" + vm_blk + "." + snap
if os.path.exists(snapshot_file):
os.remove(snapshot_file)
snapshot_list = virsh.snapshot_list(vm_name)
if snapshot_list:
raise exceptions.TestFail("Snapshot not deleted: %s",
snapshot_list)
except Exception as detail:
raise exceptions.TestFail("exception happens: %s", detail)
finally:
logging.debug("Start to clean up env...")
vmxml_backup.sync()
if pool_ins and pool_ins.pool_exists(pool_name):
virsh.pool_destroy(pool_name)
for new_vhba in new_vhbas:
virsh.nodedev_destroy(new_vhba)
utils_npiv.restart_multipathd()
if old_mpath_conf:
utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
conf_content=old_mpath_conf,
replace_existing=True)
if not original_mpath_conf_exist and os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
def run(test, params, env):
"""
Test command: virsh pool-define-as; pool-build; pool-start; vol-create-as;
vol-list; attach-device; login; mount and dd; reboot; check persistence;
detach-device; pool-destroy; pool-undefine; clear lv,vg and pv;
Create a libvirt npiv pool from a vHBA's device mapper device and create
a volume out of the newly created pool and attach it to a guest, mount it,
reboot and check persistence after reboot.
Pre-requisite :
Host should have a vHBA associated with a mpath device
"""
pool_name = params.get("pool_create_name", "virt_test_pool_tmp")
pool_type = params.get("pool_type", "dir")
scsi_wwpn = params.get("scsi_wwpn", "WWPN_EXAMPLE")
scsi_wwnn = params.get("scsi_wwnn", "WWNN_EXAMPLE")
pool_target = params.get("pool_target", "pool_target")
target_device = params.get("disk_target_dev", "vda")
volume_name = params.get("volume_name", "imagefrommapper.qcow2")
volume_capacity = params.get("volume_capacity", '1G')
allocation = params.get("allocation", '1G')
frmt = params.get("volume_format", 'qcow2')
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
mount_disk = None
test_unit = None
if 'EXAMPLE' in scsi_wwnn or 'EXAMPLE' in scsi_wwpn:
raise exceptions.TestSkipError("Please provide proper WWPN/WWNN")
if not vm.is_alive():
vm.start()
pool_extra_args = ""
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir, vm.address_cache)
process.run("service multipathd restart", shell=True)
online_hbas_list = nodedev.find_hbas("hba")
first_online_hba = online_hbas_list[0]
old_mpath_devs = nodedev.find_mpath_devs()
logging.debug("the old mpath devs are: %s" % old_mpath_devs)
new_vhbas = nodedev.nodedev_create_from_xml({
"nodedev_parent": first_online_hba,
"scsi_wwnn": scsi_wwnn,
"scsi_wwpn": scsi_wwpn
})
logging.info("Newly created vHBA %s" % new_vhbas)
process.run("service multipathd restart", shell=True)
utils_misc.wait_for(lambda: nodedev.is_mpath_devs_added(old_mpath_devs),
timeout=5)
cur_mpath_devs = nodedev.find_mpath_devs()
logging.debug("the current mpath devs are: %s" % cur_mpath_devs)
new_mpath_devs = list(set(cur_mpath_devs).difference(set(old_mpath_devs)))
logging.debug("newly added mpath devs are: %s" % new_mpath_devs)
if not new_mpath_devs:
raise exceptions.TestFail("No newly added mpath devices found, \
please check your FC settings")
source_dev = os.path.join('/dev/mapper/', new_mpath_devs[0])
logging.debug("We are going to use \"%s\" as our source device"
" to create a logical pool" % source_dev)
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
utlv.check_exit_status(cmd_result)
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
else:
raise exceptions.TestFail(
"The vHBA %s does not have any associated mpath device" %
new_vhbas)
pool_ins = libvirt_storage.StoragePool()
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
# if no online hba cards on host, mark case failed
if not online_hbas_list:
raise exceptions.TestSkipError("Host doesn't have online hba cards")
try:
cmd_result = virsh.pool_define_as(pool_name,
pool_type,
pool_target,
pool_extra_args,
ignore_status=True,
debug=True)
utlv.check_exit_status(cmd_result)
cmd_result = virsh.pool_build(pool_name)
utlv.check_exit_status(cmd_result)
cmd_result = virsh.pool_start(pool_name)
utlv.check_exit_status(cmd_result)
utlv.check_actived_pool(pool_name)
pool_detail = libvirt_xml.PoolXML.get_pool_details(pool_name)
logging.debug("Pool detail: %s", pool_detail)
cmd_result = virsh.vol_create_as(volume_name,
pool_name,
volume_capacity,
allocation,
frmt,
"",
debug=True)
utlv.check_exit_status(cmd_result)
vol_list = utlv.get_vol_list(pool_name, timeout=10)
logging.debug('Volume list %s', vol_list)
for unit in vol_list:
test_unit = vol_list[unit]
logging.debug(unit)
disk_params = {
'type_name': "file",
'target_dev': target_device,
'target_bus': "virtio",
'source_file': test_unit,
'driver_name': "qemu",
'driver_type': "raw"
}
disk_xml = utlv.create_disk_xml(disk_params)
session = vm.wait_for_login()
bf_disks = libvirt_vm.get_disks()
attach_success = virsh.attach_device(vm_name, disk_xml, debug=True)
utlv.check_exit_status(attach_success)
logging.debug("Disks before attach: %s", bf_disks)
af_disks = libvirt_vm.get_disks()
logging.debug("Disks after attach: %s", af_disks)
mount_disk = "".join(list(set(bf_disks) ^ set(af_disks)))
if not mount_disk:
raise exceptions.TestFail("Can not get attached device in vm.")
logging.debug("Attached device in vm:%s", mount_disk)
output = session.cmd_status_output('lsblk', timeout=15)
logging.debug("%s", output[1])
session.cmd_status_output('mkfs.ext4 %s' % mount_disk)
if mount_disk:
logging.info("%s", mount_disk)
mount_success = mount_and_dd(session, mount_disk)
if not mount_success:
raise exceptions.TestFail("Can not find mounted device")
session.close()
virsh.reboot(vm_name, debug=True)
session = vm.wait_for_login()
output = session.cmd_status_output('mount')
logging.debug("Mount output: %s", output[1])
if '/mnt' in output[1]:
logging.debug("Mount Successful accross reboot")
session.close()
status = virsh.detach_device(vm_name, disk_xml, debug=True)
utlv.check_exit_status(status)
finally:
vm.destroy(gracefully=False)
logging.debug('Destroying pool %s', pool_name)
virsh.pool_destroy(pool_name)
logging.debug('Undefining pool %s', pool_name)
virsh.pool_undefine(pool_name)
if test_unit:
process.system('lvremove -f %s' % test_unit, verbose=True)
process.system('vgremove -f %s' % pool_name, verbose=True)
process.system('pvremove -f %s' % source_dev, verbose=True)
if new_vhbas:
nodedev.vhbas_cleanup(new_vhbas.split())
process.run("service multipathd restart", shell=True)
def run(test, params, env):
"""
Test command: virsh pool-define; pool-define-as; pool-start;
vol-list pool; attach-device LUN to guest; mount the device;
dd to the mounted device; unmount; pool-destroy; pool-undefine;
Pre-requiste:
Host needs to have a wwpn and wwnn of a vHBA which is zoned and mapped to
SAN controller.
"""
pool_xml_f = params.get("pool_create_xml_file", "/PATH/TO/POOL.XML")
pool_name = params.get("pool_create_name", "virt_test_pool_tmp")
pre_def_pool = params.get("pre_def_pool", "no")
define_pool = params.get("define_pool", "no")
define_pool_as = params.get("define_pool_as", "no")
pool_create_as = params.get("pool_create_as", "no")
need_pool_build = params.get("need_pool_build", "no")
need_vol_create = params.get("need_vol_create", "no")
pool_type = params.get("pool_type", "dir")
source_format = params.get("pool_src_format", "")
source_name = params.get("pool_source_name", "")
source_path = params.get("pool_source_path", "/")
pool_target = params.get("pool_target", "pool_target")
pool_adapter_type = params.get("pool_adapter_type", "")
pool_adapter_parent = params.get("pool_adapter_parent", "")
target_device = params.get("disk_target_dev", "sdc")
pool_wwnn = params.get("pool_wwnn", "POOL_WWNN_EXAMPLE")
pool_wwpn = params.get("pool_wwpn", "POOL_WWPN_EXAMPLE")
vhba_wwnn = params.get("vhba_wwnn", "VHBA_WWNN_EXAMPLE")
vhba_wwpn = params.get("vhba_wwpn", "VHBA_WWPN_EXAMPLE")
volume_name = params.get("volume_name", "imagefrommapper.qcow2")
volume_capacity = params.get("volume_capacity", '1G')
allocation = params.get("allocation", '1G')
vol_format = params.get("volume_format", 'raw')
attach_method = params.get("attach_method", "hot")
test_unit = None
mount_disk = None
pool_kwargs = {}
pool_extra_args = ""
emulated_image = "emulated-image"
disk_xml = ""
new_vhbas = []
source_dev = ""
mpath_vol_path = ""
old_mpath_conf = ""
mpath_conf_path = "/etc/multipath.conf"
original_mpath_conf_exist = os.path.exists(mpath_conf_path)
if pool_type == "scsi":
if ('EXAMPLE' in pool_wwnn) or ('EXAMPLE' in pool_wwpn):
raise exceptions.TestSkipError(
"No wwpn and wwnn provided for npiv scsi pool.")
if pool_type == "logical":
if ('EXAMPLE' in vhba_wwnn) or ('EXAMPLE' in vhba_wwpn):
raise exceptions.TestSkipError(
"No wwpn and wwnn provided for vhba.")
online_hbas_list = utils_npiv.find_hbas("hba")
logging.debug("The online hbas are: %s", online_hbas_list)
old_mpath_conf = utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
replace_existing=True)
if not online_hbas_list:
raise exceptions.TestSkipError(
"Host doesn't have online hba cards")
old_vhbas = utils_npiv.find_hbas("vhba")
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
if not vm.is_alive():
vm.start()
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir,
vm.address_cache)
pool_ins = libvirt_storage.StoragePool()
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
if pool_type == "scsi":
if define_pool == "yes":
if pool_adapter_parent == "":
pool_adapter_parent = online_hbas_list[0]
pool_kwargs = {'source_path': source_path,
'source_name': source_name,
'source_format': source_format,
'pool_adapter_type': pool_adapter_type,
'pool_adapter_parent': pool_adapter_parent,
'pool_wwnn': pool_wwnn,
'pool_wwpn': pool_wwpn}
elif pool_type == "logical":
if (not vhba_wwnn) or (not vhba_wwpn):
raise exceptions.TestFail("No wwnn/wwpn provided to create vHBA.")
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": online_hbas_list[0],
"scsi_wwnn": vhba_wwnn,
"scsi_wwpn": vhba_wwpn})
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas), timeout=_DELAY_TIME*2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_DELAY_TIME*5)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s", new_mpath_devs)
source_dev = "/dev/mapper/" + new_mpath_devs[0]
logging.debug("We are going to use \"%s\" as our source device"
" to create a logical pool", source_dev)
try:
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
except Exception as e:
raise exceptions.TestError("Error occurred when parted mklable")
if define_pool_as == "yes":
pool_extra_args = ""
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
elif pool_type == "mpath":
if (not vhba_wwnn) or (not vhba_wwpn):
raise exceptions.TestFail("No wwnn/wwpn provided to create vHBA.")
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": online_hbas_list[0],
"scsi_wwnn": vhba_wwnn,
"scsi_wwpn": vhba_wwpn})
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas), timeout=_DELAY_TIME*2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_DELAY_TIME*2)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s", new_mpath_devs)
mpath_vol_path = "/dev/mapper/" + new_mpath_devs[0]
try:
cmd = "parted %s mklabel msdos -s" % mpath_vol_path
cmd_result = process.run(cmd, shell=True)
except Exception as e:
raise exceptions.TestError("Error occurred when parted mklable")
if pre_def_pool == "yes":
try:
pvt = utlv.PoolVolumeTest(test, params)
pvt.pre_pool(pool_name, pool_type,
pool_target, emulated_image,
**pool_kwargs)
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas),
_DELAY_TIME*2)
virsh.pool_dumpxml(pool_name, to_file=pool_xml_f)
virsh.pool_destroy(pool_name)
except Exception as e:
pvt.cleanup_pool(pool_name, pool_type, pool_target,
emulated_image, **pool_kwargs)
raise exceptions.TestError(
"Error occurred when prepare pool xml:\n %s" % e)
if os.path.exists(pool_xml_f):
with open(pool_xml_f, 'r') as f:
logging.debug("Create pool from file: %s", f.read())
try:
# define/create/start the pool
if (pre_def_pool == "yes") and (define_pool == "yes"):
pool_define_status = virsh.pool_define(pool_xml_f,
ignore_status=True,
debug=True)
utlv.check_exit_status(pool_define_status)
if define_pool_as == "yes":
pool_define_as_status = virsh.pool_define_as(
pool_name, pool_type,
pool_target, pool_extra_args,
ignore_status=True, debug=True
)
utlv.check_exit_status(pool_define_as_status)
if pool_create_as == "yes":
if pool_type != "scsi":
raise exceptions.TestSkipError("pool-create-as only needs to "
"be covered by scsi pool for "
"NPIV test.")
cmd = "virsh pool-create-as %s %s \
--adapter-wwnn %s --adapter-wwpn %s \
--adapter-parent %s --target %s"\
% (pool_name, pool_type, pool_wwnn, pool_wwpn,
online_hbas_list[0], pool_target)
cmd_status = process.system(cmd, verbose=True)
if cmd_status:
raise exceptions.TestFail("pool-create-as scsi pool failed.")
if need_pool_build == "yes":
pool_build_status = virsh.pool_build(pool_name, "--overwrite")
utlv.check_exit_status(pool_build_status)
pool_ins = libvirt_storage.StoragePool()
if not pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("define or create pool failed.")
else:
if not pool_ins.is_pool_active(pool_name):
pool_start_status = virsh.pool_start(pool_name)
utlv.check_exit_status(pool_start_status)
utlv.check_actived_pool(pool_name)
pool_detail = libvirt_xml.PoolXML.get_pool_details(pool_name)
logging.debug("Pool detail: %s", pool_detail)
# create vol if required
if need_vol_create == "yes":
vol_create_as_status = virsh.vol_create_as(
volume_name, pool_name,
volume_capacity, allocation,
vol_format, "", debug=True
)
utlv.check_exit_status(vol_create_as_status)
virsh.pool_refresh(pool_name)
vol_list = utlv.get_vol_list(pool_name, vol_check=True,
timeout=_DELAY_TIME*3)
logging.debug('Volume list is: %s' % vol_list)
# use test_unit to save the first vol in pool
if pool_type == "mpath":
cmd = "virsh vol-list %s | grep \"%s\" |\
awk '{FS=\" \"} {print $1}'" % (pool_name, mpath_vol_path)
cmd_result = process.run(cmd, shell=True)
status = cmd_result.exit_status
output = cmd_result.stdout_text.strip()
if cmd_result.exit_status:
raise exceptions.TestFail("vol-list pool %s failed", pool_name)
if not output:
raise exceptions.TestFail("Newly added mpath dev not in pool.")
test_unit = output
logging.info(
"Using %s to attach to a guest", test_unit)
else:
test_unit = list(vol_list.keys())[0]
logging.info(
"Using the first volume %s to attach to a guest", test_unit)
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
session = vm.wait_for_login()
output = session.cmd_status_output('lsblk')
logging.debug("%s", output[1])
old_count = vmxml.get_disk_count(vm_name)
bf_disks = libvirt_vm.get_disks()
# prepare disk xml which will be hot/cold attached to vm
disk_params = {'type_name': 'volume', 'target_dev': target_device,
'target_bus': 'virtio', 'source_pool': pool_name,
'source_volume': test_unit, 'driver_type': vol_format}
disk_xml = os.path.join(data_dir.get_tmp_dir(), 'disk_xml.xml')
lun_disk_xml = utlv.create_disk_xml(disk_params)
copyfile(lun_disk_xml, disk_xml)
disk_xml_str = open(lun_disk_xml).read()
logging.debug("The disk xml is: %s", disk_xml_str)
# hot attach disk xml to vm
if attach_method == "hot":
copyfile(lun_disk_xml, disk_xml)
dev_attach_status = virsh.attach_device(vm_name, disk_xml,
debug=True)
# Pool/vol virtual disk is not supported by mpath pool yet.
if dev_attach_status.exit_status and pool_type == "mpath":
raise exceptions.TestSkipError("mpath pool vol is not "
"supported in virtual disk yet,"
"the error message is: %s",
dev_attach_status.stderr)
session.close()
utlv.check_exit_status(dev_attach_status)
# cold attach disk xml to vm
elif attach_method == "cold":
if vm.is_alive():
vm.destroy(gracefully=False)
new_disk = disk.Disk()
new_disk.xml = disk_xml_str
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml.devices = vmxml.devices.append(new_disk)
vmxml.sync()
logging.debug(vmxml)
try:
vm.start()
except virt_vm.VMStartError as e:
logging.debug(e)
if pool_type == "mpath":
raise exceptions.TestSkipError("'mpath' pools for backing "
"'volume' disks isn't "
"supported for now")
else:
raise exceptions.TestFail("Failed to start vm")
session = vm.wait_for_login()
else:
pass
# checking attached disk in vm
logging.info("Checking disk availability in domain")
if not vmxml.get_disk_count(vm_name):
raise exceptions.TestFail("No disk in domain %s." % vm_name)
new_count = vmxml.get_disk_count(vm_name)
if new_count <= old_count:
raise exceptions.TestFail(
"Failed to attach disk %s" % lun_disk_xml)
logging.debug("Disks before attach: %s", bf_disks)
af_disks = libvirt_vm.get_disks()
logging.debug("Disks after attach: %s", af_disks)
mount_disk = "".join(list(set(bf_disks) ^ set(af_disks)))
if not mount_disk:
raise exceptions.TestFail("Can not get attached device in vm.")
logging.debug("Attached device in vm:%s", mount_disk)
logging.debug("Creating file system for %s", mount_disk)
output = session.cmd_status_output(
'echo yes | mkfs.ext4 %s' % mount_disk)
logging.debug("%s", output[1])
if mount_disk:
mount_success = mount_and_dd(session, mount_disk)
if not mount_success:
raise exceptions.TestFail("Mount failed")
else:
raise exceptions.TestFail("Partition not available for disk")
logging.debug("Unmounting disk")
session.cmd_status_output('umount %s' % mount_disk)
output = session.cmd_status_output('mount')
logging.debug("%s", output[1])
mount_success = mount_and_dd(session, mount_disk)
if not mount_success:
raise exceptions.TestFail("Mount failed")
logging.debug("Unmounting disk")
session.cmd_status_output('umount %s' % mount_disk)
session.close()
# detach disk from vm
dev_detach_status = virsh.detach_device(vm_name, disk_xml,
debug=True)
utlv.check_exit_status(dev_detach_status)
finally:
vm.destroy(gracefully=False)
vmxml_backup.sync()
logging.debug('Destroying pool %s', pool_name)
virsh.pool_destroy(pool_name)
logging.debug('Undefining pool %s', pool_name)
virsh.pool_undefine(pool_name)
if os.path.exists(pool_xml_f):
os.remove(pool_xml_f)
if os.path.exists(disk_xml):
data_dir.clean_tmp_files()
logging.debug("Cleanup disk xml")
if pre_def_pool == "yes":
# Do not apply cleanup_pool for logical pool, logical pool will
# be cleaned below
pvt.cleanup_pool(pool_name, pool_type, pool_target,
emulated_image, **pool_kwargs)
if (test_unit and
(need_vol_create == "yes" and (pre_def_pool == "no")) and
(pool_type == "logical")):
process.system('lvremove -f %s/%s' % (pool_name, test_unit),
verbose=True)
process.system('vgremove -f %s' % pool_name, verbose=True)
process.system('pvremove -f %s' % source_dev, verbose=True)
if new_vhbas:
utils_npiv.vhbas_cleanup(new_vhbas)
# Restart multipathd, this is to avoid bz1399075
if source_dev:
utils_misc.wait_for(lambda: utils_npiv.restart_multipathd(source_dev),
_DELAY_TIME*5, 0.0, 5.0)
elif mpath_vol_path:
utils_misc.wait_for(lambda: utils_npiv.restart_multipathd(mpath_vol_path),
_DELAY_TIME*5, 0.0, 5.0)
else:
utils_npiv.restart_multipathd()
if old_mpath_conf:
utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
conf_content=old_mpath_conf,
replace_existing=True)
if not original_mpath_conf_exist and os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
def run(test, params, env):
"""
Test steps:
1. Prepare a multipath device.
2. Prepare virtual disk xml using this multipath device.
3. Hot/Cold-plug the disk xml to virtual machine.
4. Check the attached disk in the virtual machine.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
mpath_conf_path = params.get('mpath_conf_path', '/etc/multipath.conf')
mpath_conf_bkup_path = params.get('mpath_conf_bkup_path',
'/etc/multipath.conf.bkup')
def prepare_multipath_conf():
"""
Prepare the multipath.conf to make sure iscsi lun can be seen as a
multipath device.
"""
mpath_conf_content = ("defaults {\n"
" user_friendly_names yes\n"
" path_grouping_policy multibus\n"
" failback immediate\n"
" no_path_retry fail\n"
"}\n")
if os.path.exists(mpath_conf_bkup_path):
os.remove(mpath_conf_bkup_path)
if os.path.exists(mpath_conf_path):
shutil.move(mpath_conf_path, mpath_conf_bkup_path)
with open(mpath_conf_path, 'wt') as mpath_conf_file:
mpath_conf_file.write(mpath_conf_content)
def recover_multipath_conf():
"""
Recover the multipath.conf.
"""
if os.path.exists(mpath_conf_bkup_path):
if os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
shutil.move(mpath_conf_bkup_path, mpath_conf_path)
def check_in_vm(vm, old_parts):
"""
Check mount/read/write disk in VM.
:param vm: Virtual machine to be checked.
:param old_parts: Original disk partitions in VM.
"""
try:
session = vm.wait_for_login()
if platform.platform().count('ppc64'):
time.sleep(10)
new_parts = libvirt.get_parts_list(session)
added_parts = list(set(new_parts).difference(set(old_parts)))
logging.info("Added parts:%s", added_parts)
if len(added_parts) != 1:
test.fail("The number of new partitions is invalid in VM")
else:
added_part = added_parts[0]
cmd = ("fdisk -l /dev/{0} && mkfs.ext4 -F /dev/{0} && "
"mkdir -p test && mount /dev/{0} test && echo"
" teststring > test/testfile && umount test"
.format(added_part))
status, output = session.cmd_status_output(cmd)
session.close()
if status:
test.fail("Disk operation in VM failed:%s" % output)
except (remote.LoginError, virt_vm.VMError, aexpect.ShellError) as err:
test.fail("Error happens when check disk in vm: %s" % err)
storage_size = params.get("storage_size", "1G")
hotplug_disk = "yes" == params.get("hotplug_disk", "no")
status_error = "yes" == params.get("status_error")
# Start VM and get all partions in VM.
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
old_parts = libvirt.get_parts_list(session)
session.close()
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
try:
# Setup backend storage
prepare_multipath_conf()
mpath.restart_multipathd()
old_mpath_devs = mpath.find_mpath_devs()
libvirt.setup_or_cleanup_iscsi(is_setup=True)
mpath.restart_multipathd()
cur_mpath_devs = mpath.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("newly added mpath devs are: %s", new_mpath_devs)
# Prepare disk xml
disk_params = {}
disk_params['type_name'] = params.get("virt_disk_type", "block")
disk_params['source_file'] = '/dev/mapper/' + new_mpath_devs[0]
disk_params['device_type'] = params.get("virt_disk_device", "lun")
disk_params['sgio'] = params.get("sgio", "filtered")
disk_params['rawio'] = params.get("rawio", "no")
disk_params['target_dev'] = params.get("virt_disk_device_target", "sdb")
disk_params['target_bus'] = params.get("virt_disk_device_bus", "scsi")
disk_params['driver_name'] = params.get("virt_disk_drive_name", "qemu")
disk_params['driver_type'] = params.get("virt_disk_device_format", "raw")
disk_xml = libvirt.create_disk_xml(disk_params)
# Test disk operation with newly added disk xml
attach_option = ""
if not hotplug_disk:
attach_option = "--config"
result = virsh.attach_device(vm_name, disk_xml, flagstr=attach_option,
ignore_status=True, debug=True)
libvirt.check_exit_status(result, status_error)
if not hotplug_disk:
vm.destroy(gracefully=False)
vm.start()
vm.wait_for_login().close()
check_in_vm(vm, old_parts)
finally:
# Recover VM.
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
# Clean up backend storage
libvirt.setup_or_cleanup_iscsi(is_setup=False)
recover_multipath_conf()
def run(test, params, env):
"""
Test command: virsh pool-define; pool-define-as; pool-start;
vol-list pool; attach-device LUN to guest; mount the device;
dd to the mounted device; unmount; pool-destroy; pool-undefine;
Pre-requiste:
Host needs to have a wwpn and wwnn of a vHBA which is zoned and mapped to
SAN controller.
"""
pool_xml_f = params.get("pool_create_xml_file", "/PATH/TO/POOL.XML")
pool_name = params.get("pool_create_name", "virt_test_pool_tmp")
pre_def_pool = params.get("pre_def_pool", "no")
define_pool = params.get("define_pool", "no")
define_pool_as = params.get("define_pool_as", "no")
pool_create_as = params.get("pool_create_as", "no")
need_pool_build = params.get("need_pool_build", "no")
need_vol_create = params.get("need_vol_create", "no")
pool_type = params.get("pool_type", "dir")
source_format = params.get("pool_src_format", "")
source_name = params.get("pool_source_name", "")
source_path = params.get("pool_source_path", "/")
pool_target = params.get("pool_target", "pool_target")
pool_adapter_type = params.get("pool_adapter_type", "")
pool_adapter_parent = params.get("pool_adapter_parent", "")
target_device = params.get("disk_target_dev", "sdc")
pool_wwnn = params.get("pool_wwnn", "POOL_WWNN_EXAMPLE")
pool_wwpn = params.get("pool_wwpn", "POOL_WWPN_EXAMPLE")
vhba_wwnn = params.get("vhba_wwnn", "VHBA_WWNN_EXAMPLE")
vhba_wwpn = params.get("vhba_wwpn", "VHBA_WWPN_EXAMPLE")
volume_name = params.get("volume_name", "imagefrommapper.qcow2")
volume_capacity = params.get("volume_capacity", '1G')
allocation = params.get("allocation", '1G')
vol_format = params.get("volume_format", 'raw')
attach_method = params.get("attach_method", "hot")
test_unit = None
mount_disk = None
pool_kwargs = {}
pool_extra_args = ""
emulated_image = "emulated-image"
disk_xml = ""
new_vhbas = []
source_dev = ""
mpath_vol_path = ""
if pool_type == "scsi":
if ('EXAMPLE' in pool_wwnn) or ('EXAMPLE' in pool_wwpn):
raise exceptions.TestSkipError(
"No wwpn and wwnn provided for npiv scsi pool.")
if pool_type == "logical":
if ('EXAMPLE' in vhba_wwnn) or ('EXAMPLE' in vhba_wwpn):
raise exceptions.TestSkipError(
"No wwpn and wwnn provided for vhba.")
online_hbas_list = utils_npiv.find_hbas("hba")
logging.debug("The online hbas are: %s", online_hbas_list)
if not online_hbas_list:
raise exceptions.TestSkipError(
"Host doesn't have online hba cards")
old_vhbas = utils_npiv.find_hbas("vhba")
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
if not vm.is_alive():
vm.start()
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir,
vm.address_cache)
pool_ins = libvirt_storage.StoragePool()
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
if pool_type == "scsi":
if define_pool == "yes":
if pool_adapter_parent == "":
pool_adapter_parent = online_hbas_list[0]
pool_kwargs = {'source_path': source_path,
'source_name': source_name,
'source_format': source_format,
'pool_adapter_type': pool_adapter_type,
'pool_adapter_parent': pool_adapter_parent,
'pool_wwnn': pool_wwnn,
'pool_wwpn': pool_wwpn}
elif pool_type == "logical":
if (not vhba_wwnn) or (not vhba_wwpn):
raise exceptions.TestFail("No wwnn/wwpn provided to create vHBA.")
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": online_hbas_list[0],
"scsi_wwnn": vhba_wwnn,
"scsi_wwpn": vhba_wwpn})
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas), timeout=_DELAY_TIME*2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_DELAY_TIME*5)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s", new_mpath_devs)
source_dev = "/dev/mapper/" + new_mpath_devs[0]
logging.debug("We are going to use \"%s\" as our source device"
" to create a logical pool", source_dev)
try:
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
except Exception, e:
raise exceptions.TestError("Error occurred when parted mklable")
if define_pool_as == "yes":
pool_extra_args = ""
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
source_dev = "/dev/mapper/" + new_mpath_devs[0]
logging.debug("We are going to use \"%s\" as our source device"
" to create a logical pool", source_dev)
try:
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
except Exception, e:
raise exceptions.TestError("Error occurred when parted mklable")
if define_pool_as == "yes":
pool_extra_args = ""
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
elif pool_type == "mpath":
if (not vhba_wwnn) or (not vhba_wwpn):
raise exceptions.TestFail("No wwnn/wwpn provided to create vHBA.")
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": online_hbas_list[0],
"scsi_wwnn": vhba_wwnn,
"scsi_wwpn": vhba_wwpn})
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas), timeout=_DELAY_TIME*2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_DELAY_TIME*2)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
def run(test, params, env):
"""
Test steps:
1. Prepare a multipath device.
2. Prepare virtual disk xml using this multipath device.
3. Hot/Cold-plug the disk xml to virtual machine.
4. Check the attached disk in the virtual machine.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
mpath_conf_path = params.get('mpath_conf_path', '/etc/multipath.conf')
mpath_conf_bkup_path = params.get('mpath_conf_bkup_path',
'/etc/multipath.conf.bkup')
mpath_conf_exist = False
def prepare_multipath_conf():
"""
Prepare the multipath.conf to make sure iscsi lun can be seen as a
multipath device.
:return: True means the multipath.conf exists at first, False means not.
"""
multipath_conf_exist = False
mpath_conf_content = ("defaults {\n"
" user_friendly_names yes\n"
" path_grouping_policy multibus\n"
" failback immediate\n"
" no_path_retry fail\n"
"}\n")
if os.path.exists(mpath_conf_bkup_path):
os.remove(mpath_conf_bkup_path)
if os.path.exists(mpath_conf_path):
multipath_conf_exist = True
shutil.move(mpath_conf_path, mpath_conf_bkup_path)
with open(mpath_conf_path, 'wt') as mpath_conf_file:
mpath_conf_file.write(mpath_conf_content)
return multipath_conf_exist
def recover_multipath_conf(remove_mpath_conf=False):
"""
Recover the multipath.conf.
:param remove_mpath_conf: True to remove multipath.conf.
"""
if os.path.exists(mpath_conf_bkup_path):
if os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
shutil.move(mpath_conf_bkup_path, mpath_conf_path)
if os.path.exists(mpath_conf_path) and remove_mpath_conf:
os.remove(mpath_conf_path)
def check_in_vm(vm, old_parts):
"""
Check mount/read/write disk in VM.
:param vm: Virtual machine to be checked.
:param old_parts: Original disk partitions in VM.
"""
try:
session = vm.wait_for_login()
if platform.platform().count('ppc64'):
time.sleep(10)
new_parts = libvirt.get_parts_list(session)
added_parts = list(set(new_parts).difference(set(old_parts)))
logging.info("Added parts:%s", added_parts)
if len(added_parts) != 1:
test.fail("The number of new partitions is invalid in VM")
else:
added_part = added_parts[0]
cmd = ("fdisk -l /dev/{0} && mkfs.ext4 -F /dev/{0} && "
"mkdir -p test && mount /dev/{0} test && echo"
" teststring > test/testfile && umount test"
.format(added_part))
status, output = session.cmd_status_output(cmd)
session.close()
if status:
test.fail("Disk operation in VM failed:%s" % output)
except (remote.LoginError, virt_vm.VMError, aexpect.ShellError) as err:
test.fail("Error happens when check disk in vm: %s" % err)
storage_size = params.get("storage_size", "1G")
hotplug_disk = "yes" == params.get("hotplug_disk", "no")
status_error = "yes" == params.get("status_error")
# Start VM and get all partions in VM.
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
old_parts = libvirt.get_parts_list(session)
session.close()
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
try:
# Setup backend storage
mpath_conf_exist = prepare_multipath_conf()
mpath.restart_multipathd()
old_mpath_devs = mpath.find_mpath_devs()
libvirt.setup_or_cleanup_iscsi(is_setup=True)
mpath.restart_multipathd()
cur_mpath_devs = mpath.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("newly added mpath devs are: %s", new_mpath_devs)
# Prepare disk xml
disk_params = {}
disk_params['type_name'] = params.get("virt_disk_type", "block")
disk_params['source_file'] = '/dev/mapper/' + new_mpath_devs[0]
disk_params['device_type'] = params.get("virt_disk_device", "lun")
disk_params['sgio'] = params.get("sgio", "filtered")
disk_params['rawio'] = params.get("rawio", "no")
disk_params['target_dev'] = params.get("virt_disk_device_target", "sdb")
disk_params['target_bus'] = params.get("virt_disk_device_bus", "scsi")
disk_params['driver_name'] = params.get("virt_disk_drive_name", "qemu")
disk_params['driver_type'] = params.get("virt_disk_device_format", "raw")
disk_xml = libvirt.create_disk_xml(disk_params)
# Test disk operation with newly added disk xml
attach_option = ""
if not hotplug_disk:
attach_option = "--config"
result = virsh.attach_device(vm_name, disk_xml, flagstr=attach_option,
ignore_status=True, debug=True)
libvirt.check_exit_status(result, status_error)
if not hotplug_disk:
vm.destroy(gracefully=False)
vm.start()
vm.wait_for_login().close()
check_in_vm(vm, old_parts)
finally:
# Recover VM.
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
# Clean up backend storage
libvirt.setup_or_cleanup_iscsi(is_setup=False)
recover_multipath_conf(not mpath_conf_exist)
mpath.restart_multipathd()
def run(test, params, env):
"""
1. prepare a fc lun with one of following methods
- create a scsi pool&vol
- create a vhba
2. prepare the virtual disk xml, as one of following
- source = /dev/disk/by-path
- source = /dev/mapper/mpathX
- source = pool&vol format
3. start a vm with above disk as vdb
4. create disk-only snapshot of vdb
5. check the snapshot-list and snapshot file's existence
6. mount vdb and touch file to it
7. revert the snapshot and check file's existence
8. delete snapshot
9. cleanup env.
"""
vm_name = params.get("main_vm", "avocado-vt-vm1")
wwpn = params.get("wwpn", "WWPN_EXAMPLE")
wwnn = params.get("wwnn", "WWNN_EXAMPLE")
disk_device = params.get("disk_device", "disk")
disk_type = params.get("disk_type", "file")
disk_size = params.get("disk_size", "100M")
device_target = params.get("device_target", "vdb")
driver_name = params.get("driver_name", "qemu")
driver_type = params.get("driver_type", "raw")
target_bus = params.get("target_bus", "virtio")
vd_format = params.get("vd_format", "")
snapshot_dir = params.get("snapshot_dir", "/tmp")
snapshot_name = params.get("snapshot_name", "s1")
pool_name = params.get("pool_name", "")
pool_target = params.get("pool_target", "/dev")
snapshot_disk_only = "yes" == params.get("snapshot_disk_only", "no")
new_vhbas = []
current_vhbas = []
new_vhba = []
path_to_blk = ""
lun_sl = []
new_disk = ""
pool_ins = None
vm = env.get_vm(vm_name)
online_hbas = utils_npiv.find_hbas("hba")
if not online_hbas:
raise exceptions.TestSkipError("There is no online hba cards.")
first_online_hba = online_hbas[0]
old_vhbas = utils_npiv.find_hbas("vhba")
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
virt_vm = libvirt_vm.VM(vm_name, vm.params, vm.root_dir, vm.address_cache)
old_disks = virt_vm.get_disks()
if vm.is_alive():
vm.destroy(gracefully=False)
if pool_name:
pool_ins = libvirt_storage.StoragePool()
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
try:
# prepare a fc lun
if vd_format in ['scsi_vol']:
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
prepare_scsi_pool(pool_name, wwnn, wwpn, first_online_hba,
pool_target)
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT)
if not utils_npiv.is_vhbas_added(old_vhbas):
raise exceptions.TestFail("vHBA not successfully created")
current_vhbas = utils_npiv.find_hbas("vhba")
new_vhba = list(set(current_vhbas).difference(set(old_vhbas)))[0]
new_vhbas.append(new_vhba)
new_vhba_scsibus = re.sub("\D", "", new_vhba)
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
new_blks = get_blks_by_scsi(new_vhba_scsibus)
if not new_blks:
raise exceptions.TestFail(
"block device not found with scsi_%s", new_vhba_scsibus)
first_blk_dev = new_blks[0]
utils_misc.wait_for(lambda: get_symbols_by_blk(first_blk_dev),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(first_blk_dev)
if not lun_sl:
raise exceptions.TestFail("lun symbolic links not found under "
"/dev/disk/by-path/ for blk dev %s" %
first_blk_dev)
lun_dev = lun_sl[0]
path_to_blk = os.path.join(_BY_PATH_DIR, lun_dev)
elif vd_format in ['mpath', 'by_path']:
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent": first_online_hba,
"scsi_wwnn": wwnn,
"scsi_wwpn": wwpn
})
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT * 2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
if vd_format == "mpath":
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_TIMEOUT * 5)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(
set(cur_mpath_devs).difference(set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s",
new_mpath_devs)
path_to_blk = "/dev/mapper/" + new_mpath_devs[0]
elif vd_format == "by_path":
new_vhba_scsibus = re.sub("\D", "", new_vhba)
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
new_blks = get_blks_by_scsi(new_vhba_scsibus)
if not new_blks:
raise exceptions.TestFail("blk dev not found with scsi_%s",
new_vhba_scsibus)
first_blk_dev = new_blks[0]
utils_misc.wait_for(lambda: get_symbols_by_blk(first_blk_dev),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(first_blk_dev)
if not lun_sl:
raise exceptions.TestFail(
"lun symbolic links not found in "
"/dev/disk/by-path/ for %s" % first_blk_dev)
lun_dev = lun_sl[0]
path_to_blk = os.path.join(_BY_PATH_DIR, lun_dev)
else:
pass
else:
raise exceptions.TestSkipError("Not provided how to pass"
"virtual disk to VM.")
# create qcow2 file on the block device with specified size
if path_to_blk:
cmd = "qemu-img create -f qcow2 %s %s" % (path_to_blk, disk_size)
try:
process.run(cmd, shell=True)
except process.cmdError, detail:
raise exceptions.TestFail(
"Fail to create qcow2 on blk dev: %s", detail)
else:
def run(test, params, env):
"""
Test command: virsh pool-define-as; pool-build; pool-start; vol-create-as;
vol-list; attach-device; login; mount and dd; reboot; check persistence;
detach-device; pool-destroy; pool-undefine; clear lv,vg and pv;
Create a libvirt npiv pool from a vHBA's device mapper device and create
a volume out of the newly created pool and attach it to a guest, mount it,
reboot and check persistence after reboot.
Pre-requisite :
Host should have a vHBA associated with a mpath device
"""
pool_name = params.get("pool_create_name", "virt_test_pool_tmp")
pool_type = params.get("pool_type", "dir")
scsi_wwpn = params.get("scsi_wwpn", "WWPN_EXAMPLE")
scsi_wwnn = params.get("scsi_wwnn", "WWNN_EXAMPLE")
pool_target = params.get("pool_target", "pool_target")
target_device = params.get("disk_target_dev", "vda")
volume_name = params.get("volume_name", "imagefrommapper.qcow2")
volume_capacity = params.get("volume_capacity", '1G')
allocation = params.get("allocation", '1G')
frmt = params.get("volume_format", 'qcow2')
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
mount_disk = None
test_unit = None
if 'EXAMPLE' in scsi_wwnn or 'EXAMPLE' in scsi_wwpn:
raise exceptions.TestSkipError("Please provide proper WWPN/WWNN")
if not vm.is_alive():
vm.start()
pool_extra_args = ""
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir,
vm.address_cache)
process.run("service multipathd restart", shell=True)
online_hbas_list = nodedev.find_hbas("hba")
first_online_hba = online_hbas_list[0]
old_mpath_devs = nodedev.find_mpath_devs()
logging.debug("the old mpath devs are: %s" % old_mpath_devs)
new_vhbas = nodedev.nodedev_create_from_xml(
{"nodedev_parent": first_online_hba,
"scsi_wwnn": scsi_wwnn,
"scsi_wwpn": scsi_wwpn})
logging.info("Newly created vHBA %s" % new_vhbas)
process.run("service multipathd restart", shell=True)
utils_misc.wait_for(
lambda: nodedev.is_mpath_devs_added(old_mpath_devs), timeout=5)
cur_mpath_devs = nodedev.find_mpath_devs()
logging.debug("the current mpath devs are: %s" % cur_mpath_devs)
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("newly added mpath devs are: %s" % new_mpath_devs)
if not new_mpath_devs:
raise exceptions.TestFail("No newly added mpath devices found, \
please check your FC settings")
source_dev = os.path.join('/dev/mapper/', new_mpath_devs[0])
logging.debug("We are going to use \"%s\" as our source device"
" to create a logical pool" % source_dev)
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
utlv.check_exit_status(cmd_result)
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
else:
raise exceptions.TestFail(
"The vHBA %s does not have any associated mpath device" % new_vhbas)
pool_ins = libvirt_storage.StoragePool()
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
# if no online hba cards on host, mark case failed
if not online_hbas_list:
raise exceptions.TestSkipError("Host doesn't have online hba cards")
try:
cmd_result = virsh.pool_define_as(
pool_name, pool_type, pool_target, pool_extra_args, ignore_status=True,
debug=True)
utlv.check_exit_status(cmd_result)
cmd_result = virsh.pool_build(pool_name)
utlv.check_exit_status(cmd_result)
cmd_result = virsh.pool_start(pool_name)
utlv.check_exit_status(cmd_result)
utlv.check_actived_pool(pool_name)
pool_detail = libvirt_xml.PoolXML.get_pool_details(pool_name)
logging.debug("Pool detail: %s", pool_detail)
cmd_result = virsh.vol_create_as(
volume_name, pool_name, volume_capacity, allocation, frmt, "", debug=True)
utlv.check_exit_status(cmd_result)
vol_list = utlv.get_vol_list(pool_name, timeout=10)
logging.debug('Volume list %s', vol_list)
for unit in vol_list:
test_unit = vol_list[unit]
logging.debug(unit)
disk_params = {'type_name': "file", 'target_dev': target_device,
'target_bus': "virtio", 'source_file': test_unit,
'driver_name': "qemu", 'driver_type': "raw"}
disk_xml = utlv.create_disk_xml(disk_params)
session = vm.wait_for_login()
bf_disks = libvirt_vm.get_disks()
attach_success = virsh.attach_device(
vm_name, disk_xml, debug=True)
utlv.check_exit_status(attach_success)
logging.debug("Disks before attach: %s", bf_disks)
af_disks = libvirt_vm.get_disks()
logging.debug("Disks after attach: %s", af_disks)
mount_disk = "".join(list(set(bf_disks) ^ set(af_disks)))
if not mount_disk:
raise exceptions.TestFail("Can not get attached device in vm.")
logging.debug("Attached device in vm:%s", mount_disk)
output = session.cmd_status_output('lsblk', timeout=15)
logging.debug("%s", output[1])
session.cmd_status_output('mkfs.ext4 %s' % mount_disk)
if mount_disk:
logging.info("%s", mount_disk)
mount_success = mount_and_dd(session, mount_disk)
if not mount_success:
raise exceptions.TestFail("Can not find mounted device")
session.close()
virsh.reboot(vm_name, debug=True)
session = vm.wait_for_login()
output = session.cmd_status_output('mount')
logging.debug("Mount output: %s", output[1])
if '/mnt' in output[1]:
logging.debug("Mount Successful accross reboot")
session.close()
status = virsh.detach_device(vm_name, disk_xml,
debug=True)
utlv.check_exit_status(status)
finally:
vm.destroy(gracefully=False)
logging.debug('Destroying pool %s', pool_name)
virsh.pool_destroy(pool_name)
logging.debug('Undefining pool %s', pool_name)
virsh.pool_undefine(pool_name)
if test_unit:
process.system('lvremove -f %s' % test_unit, verbose=True)
process.system('vgremove -f %s' % pool_name, verbose=True)
process.system('pvremove -f %s' % source_dev, verbose=True)
if new_vhbas:
nodedev.vhbas_cleanup(new_vhbas.split())
process.run("service multipathd restart", shell=True)
def run(test, params, env):
"""
Test command: virsh pool-define; pool-define-as; pool-start;
vol-list pool; attach-device LUN to guest; mount the device;
dd to the mounted device; unmount; pool-destroy; pool-undefine;
Pre-requiste:
Host needs to have a wwpn and wwnn of a vHBA which is zoned and mapped to
SAN controller.
"""
pool_xml_f = params.get("pool_create_xml_file", "/PATH/TO/POOL.XML")
pool_name = params.get("pool_create_name", "virt_test_pool_tmp")
pre_def_pool = params.get("pre_def_pool", "no")
define_pool = params.get("define_pool", "no")
define_pool_as = params.get("define_pool_as", "no")
pool_create_as = params.get("pool_create_as", "no")
need_pool_build = params.get("need_pool_build", "no")
need_vol_create = params.get("need_vol_create", "no")
pool_type = params.get("pool_type", "dir")
source_format = params.get("pool_src_format", "")
source_name = params.get("pool_source_name", "")
source_path = params.get("pool_source_path", "/")
pool_target = params.get("pool_target", "pool_target")
pool_adapter_type = params.get("pool_adapter_type", "")
pool_adapter_parent = params.get("pool_adapter_parent", "")
target_device = params.get("disk_target_dev", "sdc")
pool_wwnn = params.get("pool_wwnn", "POOL_WWNN_EXAMPLE")
pool_wwpn = params.get("pool_wwpn", "POOL_WWPN_EXAMPLE")
vhba_wwnn = params.get("vhba_wwnn", "VHBA_WWNN_EXAMPLE")
vhba_wwpn = params.get("vhba_wwpn", "VHBA_WWPN_EXAMPLE")
volume_name = params.get("volume_name", "imagefrommapper.qcow2")
volume_capacity = params.get("volume_capacity", '1G')
allocation = params.get("allocation", '1G')
vol_format = params.get("volume_format", 'raw')
attach_method = params.get("attach_method", "hot")
test_unit = None
mount_disk = None
pool_kwargs = {}
pool_extra_args = ""
emulated_image = "emulated-image"
disk_xml = ""
new_vhbas = []
source_dev = ""
mpath_vol_path = ""
if pool_type == "scsi":
if ('EXAMPLE' in pool_wwnn) or ('EXAMPLE' in pool_wwpn):
raise exceptions.TestSkipError(
"No wwpn and wwnn provided for npiv scsi pool.")
if pool_type == "logical":
if ('EXAMPLE' in vhba_wwnn) or ('EXAMPLE' in vhba_wwpn):
raise exceptions.TestSkipError(
"No wwpn and wwnn provided for vhba.")
online_hbas_list = utils_npiv.find_hbas("hba")
logging.debug("The online hbas are: %s", online_hbas_list)
if not online_hbas_list:
raise exceptions.TestSkipError("Host doesn't have online hba cards")
old_vhbas = utils_npiv.find_hbas("vhba")
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
if not vm.is_alive():
vm.start()
libvirt_vm = lib_vm.VM(vm_name, vm.params, vm.root_dir, vm.address_cache)
pool_ins = libvirt_storage.StoragePool()
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
if pool_type == "scsi":
if define_pool == "yes":
if pool_adapter_parent == "":
pool_adapter_parent = online_hbas_list[0]
pool_kwargs = {
'source_path': source_path,
'source_name': source_name,
'source_format': source_format,
'pool_adapter_type': pool_adapter_type,
'pool_adapter_parent': pool_adapter_parent,
'pool_wwnn': pool_wwnn,
'pool_wwpn': pool_wwpn
}
elif pool_type == "logical":
if (not vhba_wwnn) or (not vhba_wwpn):
raise exceptions.TestFail("No wwnn/wwpn provided to create vHBA.")
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent":
online_hbas_list[0],
"scsi_wwnn":
vhba_wwnn,
"scsi_wwpn":
vhba_wwpn
})
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_DELAY_TIME * 2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_DELAY_TIME * 5)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(
set(cur_mpath_devs).difference(set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s", new_mpath_devs)
source_dev = "/dev/mapper/" + new_mpath_devs[0]
logging.debug(
"We are going to use \"%s\" as our source device"
" to create a logical pool", source_dev)
try:
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
except Exception, e:
raise exceptions.TestError("Error occurred when parted mklable")
if define_pool_as == "yes":
pool_extra_args = ""
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
logging.debug(
"We are going to use \"%s\" as our source device"
" to create a logical pool", source_dev)
try:
cmd = "parted %s mklabel msdos -s" % source_dev
cmd_result = process.run(cmd, shell=True)
except Exception, e:
raise exceptions.TestError("Error occurred when parted mklable")
if define_pool_as == "yes":
pool_extra_args = ""
if source_dev:
pool_extra_args = ' --source-dev %s' % source_dev
elif pool_type == "mpath":
if (not vhba_wwnn) or (not vhba_wwpn):
raise exceptions.TestFail("No wwnn/wwpn provided to create vHBA.")
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml({
"nodedev_parent":
online_hbas_list[0],
"scsi_wwnn":
vhba_wwnn,
"scsi_wwpn":
vhba_wwpn
})
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_DELAY_TIME * 2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
def run(test, params, env):
"""
1. prepare a fc lun with one of following methods
- create a scsi pool&vol
- create a vhba
2. prepare the virtual disk xml, as one of following
- source = /dev/disk/by-path
- source = /dev/mapper/mpathX
- source = pool&vol format
3. start a vm with above disk as vdb
4. create disk-only snapshot of vdb
5. check the snapshot-list and snapshot file's existence
6. mount vdb and touch file to it
7. revert the snapshot and check file's existence
8. delete snapshot
9. cleanup env.
"""
vm_name = params.get("main_vm", "avocado-vt-vm1")
wwpn = params.get("wwpn", "WWPN_EXAMPLE")
wwnn = params.get("wwnn", "WWNN_EXAMPLE")
disk_device = params.get("disk_device", "disk")
disk_type = params.get("disk_type", "file")
disk_size = params.get("disk_size", "100M")
device_target = params.get("device_target", "vdb")
driver_name = params.get("driver_name", "qemu")
driver_type = params.get("driver_type", "raw")
target_bus = params.get("target_bus", "virtio")
vd_format = params.get("vd_format", "")
snapshot_dir = params.get("snapshot_dir", "/tmp")
snapshot_name = params.get("snapshot_name", "s1")
pool_name = params.get("pool_name", "")
pool_target = params.get("pool_target", "/dev")
snapshot_disk_only = "yes" == params.get("snapshot_disk_only", "no")
new_vhbas = []
current_vhbas = []
new_vhba = []
path_to_blk = ""
lun_sl = []
new_disk = ""
pool_ins = None
vm = env.get_vm(vm_name)
online_hbas = utils_npiv.find_hbas("hba")
if not online_hbas:
raise exceptions.TestSkipError("There is no online hba cards.")
first_online_hba = online_hbas[0]
old_vhbas = utils_npiv.find_hbas("vhba")
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
virt_vm = libvirt_vm.VM(vm_name, vm.params, vm.root_dir,
vm.address_cache)
old_disks = virt_vm.get_disks()
if vm.is_alive():
vm.destroy(gracefully=False)
if pool_name:
pool_ins = libvirt_storage.StoragePool()
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
try:
# prepare a fc lun
if vd_format in ['scsi_vol']:
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
prepare_scsi_pool(pool_name, wwnn, wwpn,
first_online_hba, pool_target)
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT)
if not utils_npiv.is_vhbas_added(old_vhbas):
raise exceptions.TestFail("vHBA not successfully created")
current_vhbas = utils_npiv.find_hbas("vhba")
new_vhba = list(set(current_vhbas).difference(
set(old_vhbas)))[0]
new_vhbas.append(new_vhba)
new_vhba_scsibus = re.sub("\D", "", new_vhba)
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
new_blks = get_blks_by_scsi(new_vhba_scsibus)
if not new_blks:
raise exceptions.TestFail("block device not found with scsi_%s",
new_vhba_scsibus)
first_blk_dev = new_blks[0]
utils_misc.wait_for(
lambda: get_symbols_by_blk(first_blk_dev),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(first_blk_dev)
if not lun_sl:
raise exceptions.TestFail("lun symbolic links not found under "
"/dev/disk/by-path/ for blk dev %s" %
first_blk_dev)
lun_dev = lun_sl[0]
path_to_blk = os.path.join(_BY_PATH_DIR, lun_dev)
elif vd_format in ['mpath', 'by_path']:
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml(
{"nodedev_parent": first_online_hba,
"scsi_wwnn": wwnn,
"scsi_wwpn": wwpn})
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT*2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
if vd_format == "mpath":
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_TIMEOUT*5)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s",
new_mpath_devs)
path_to_blk = "/dev/mapper/" + new_mpath_devs[0]
elif vd_format == "by_path":
new_vhba_scsibus = re.sub("\D", "", new_vhba)
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
new_blks = get_blks_by_scsi(new_vhba_scsibus)
if not new_blks:
raise exceptions.TestFail("blk dev not found with scsi_%s",
new_vhba_scsibus)
first_blk_dev = new_blks[0]
utils_misc.wait_for(
lambda: get_symbols_by_blk(first_blk_dev),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(first_blk_dev)
if not lun_sl:
raise exceptions.TestFail("lun symbolic links not found in "
"/dev/disk/by-path/ for %s" %
first_blk_dev)
lun_dev = lun_sl[0]
path_to_blk = os.path.join(_BY_PATH_DIR, lun_dev)
else:
pass
else:
raise exceptions.TestSkipError("Not provided how to pass"
"virtual disk to VM.")
# create qcow2 file on the block device with specified size
if path_to_blk:
cmd = "qemu-img create -f qcow2 %s %s" % (path_to_blk, disk_size)
try:
process.run(cmd, shell=True)
except process.cmdError, detail:
raise exceptions.TestFail("Fail to create qcow2 on blk dev: %s",
detail)
else:
def run(test, params, env):
"""
Test steps:
1. Prepare a multipath device.
2. Prepare virtual disk xml using this multipath device.
3. Hot/Cold-plug the disk xml to virtual machine.
4. Check the attached disk in the virtual machine.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
mpath_conf_path = params.get('mpath_conf_path', '/etc/multipath.conf')
mpath_conf_bkup_path = params.get('mpath_conf_bkup_path',
'/etc/multipath.conf.bkup')
mpath_conf_exist = False
def prepare_multipath_conf():
"""
Prepare the multipath.conf to make sure iscsi lun can be seen as a
multipath device.
:return: True means the multipath.conf exists at first, False means not.
"""
multipath_conf_exist = False
mpath_conf_content = ("defaults {\n"
" user_friendly_names yes\n"
" path_grouping_policy multibus\n"
" failback immediate\n"
" no_path_retry fail\n"
"}\n")
if os.path.exists(mpath_conf_bkup_path):
os.remove(mpath_conf_bkup_path)
if os.path.exists(mpath_conf_path):
multipath_conf_exist = True
shutil.move(mpath_conf_path, mpath_conf_bkup_path)
with open(mpath_conf_path, 'wt') as mpath_conf_file:
mpath_conf_file.write(mpath_conf_content)
return multipath_conf_exist
def recover_multipath_conf(remove_mpath_conf=False):
"""
Recover the multipath.conf.
:param remove_mpath_conf: True to remove multipath.conf.
"""
if os.path.exists(mpath_conf_bkup_path):
if os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
shutil.move(mpath_conf_bkup_path, mpath_conf_path)
if os.path.exists(mpath_conf_path) and remove_mpath_conf:
os.remove(mpath_conf_path)
def check_in_vm(vm, old_parts):
"""
Check mount/read/write disk in VM.
:param vm: Virtual machine to be checked.
:param old_parts: Original disk partitions in VM.
"""
try:
session = vm.wait_for_login()
if platform.platform().count('ppc64'):
time.sleep(10)
new_parts = utils_disk.get_parts_list(session)
added_parts = list(set(new_parts).difference(set(old_parts)))
logging.info("Added parts:%s", added_parts)
if len(added_parts) != 1:
test.fail("The number of new partitions is invalid in VM")
else:
added_part = added_parts[0]
cmd = ("fdisk -l /dev/{0} && mkfs.ext4 -F /dev/{0} && "
"mkdir -p test && mount /dev/{0} test && echo"
" teststring > test/testfile && umount test"
.format(added_part))
status, output = session.cmd_status_output(cmd)
session.close()
if status:
test.fail("Disk operation in VM failed:%s" % output)
except (remote.LoginError, virt_vm.VMError, aexpect.ShellError) as err:
test.fail("Error happens when check disk in vm: %s" % err)
def get_new_mpath_devs(old_mpath_devs):
"""
Return function that determines new multipath devices
:param old_mpath_devs: known old multipath devices
:return: Function returning new multipath devices
"""
def has_new_mpath_devs():
"""
Determine new multipath devices
:return: List of new multipath devices
"""
cur_mpath_devs = mpath.find_mpath_devs()
return list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
return has_new_mpath_devs
storage_size = params.get("storage_size", "1G")
hotplug_disk = "yes" == params.get("hotplug_disk", "no")
status_error = "yes" == params.get("status_error")
# Start VM and get all partitions in VM.
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
old_parts = utils_disk.get_parts_list(session)
session.close()
vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
try:
# Setup backend storage
mpath_conf_exist = prepare_multipath_conf()
mpath.restart_multipathd()
old_mpath_devs = mpath.find_mpath_devs()
libvirt.setup_or_cleanup_iscsi(is_setup=True)
mpath.restart_multipathd()
new_mpath_devs = utils_misc.wait_for(
get_new_mpath_devs(old_mpath_devs), WAIT_FOR_MPATH_DEVS_TIMEOUT, 0.5)
if not new_mpath_devs:
test.fail("No newly added multipath devices found.")
logging.debug("newly added mpath devs are: %s", new_mpath_devs)
# Add debug information for states of multipathed_path and multipathed_device
multipathed_path = process.run('multipath -v2', ignore_status=True, shell=True, verbose=True).stdout_text.strip()
logging.debug("dumped multipathed_path: %s", multipathed_path)
multipathed_device = process.run('multipath -ll', ignore_status=True, shell=True, verbose=True).stdout_text.strip()
logging.debug("dumped multipathed_device: %s", multipathed_device)
# Prepare disk xml
disk_params = {}
disk_params['type_name'] = params.get("virt_disk_type", "block")
disk_params['source_file'] = '/dev/mapper/' + new_mpath_devs[0]
disk_params['device_type'] = params.get("virt_disk_device", "lun")
disk_params['sgio'] = params.get("sgio", "filtered")
disk_params['rawio'] = params.get("rawio", "no")
disk_params['target_dev'] = params.get("virt_disk_device_target", "sdb")
disk_params['target_bus'] = params.get("virt_disk_device_bus", "scsi")
disk_params['driver_name'] = params.get("virt_disk_drive_name", "qemu")
disk_params['driver_type'] = params.get("virt_disk_device_format", "raw")
disk_xml = libvirt.create_disk_xml(disk_params)
def _verify_multipathd_alive():
"""
Verify whether multipathd statue is active, return bool value
"""
host_session = aexpect.ShellSession("sh")
return utils_misc.get_guest_service_status(
host_session, 'multipathd') == 'active'
# Allow time to enable multipathd alive after restart
utils_misc.wait_for(_verify_multipathd_alive, 40)
# Test disk operation with newly added disk xml
attach_option = ""
if not hotplug_disk:
attach_option = "--config"
result = virsh.attach_device(vm_name, disk_xml, flagstr=attach_option,
ignore_status=True, debug=True)
libvirt.check_exit_status(result, status_error)
if not hotplug_disk:
vm.destroy(gracefully=False)
vm.start()
vm.wait_for_login().close()
check_in_vm(vm, old_parts)
finally:
# Recover VM.
if vm.is_alive():
vm.destroy(gracefully=False)
vmxml_backup.sync()
# Clean up backend storage
libvirt.setup_or_cleanup_iscsi(is_setup=False)
recover_multipath_conf(not mpath_conf_exist)
mpath.restart_multipathd()
def run(test, params, env):
"""
1. prepare a fc lun with one of following methods
- create a scsi pool&vol
- create a vhba
2. prepare the virtual disk xml, as one of following
- source = /dev/disk/by-path
- source = /dev/mapper/mpathX
- source = pool&vol format
3. start a vm with above disk as vdb
4. create disk-only snapshot of vdb
5. check the snapshot-list and snapshot file's existence
6. mount vdb and touch file to it
7. revert the snapshot and check file's existence
8. delete snapshot
9. cleanup env.
"""
vm_name = params.get("main_vm", "avocado-vt-vm1")
wwpn = params.get("wwpn", "WWPN_EXAMPLE")
wwnn = params.get("wwnn", "WWNN_EXAMPLE")
disk_device = params.get("disk_device", "disk")
disk_type = params.get("disk_type", "file")
disk_size = params.get("disk_size", "100M")
device_target = params.get("device_target", "vdb")
driver_name = params.get("driver_name", "qemu")
driver_type = params.get("driver_type", "raw")
target_bus = params.get("target_bus", "virtio")
vd_format = params.get("vd_format", "")
snapshot_dir = params.get("snapshot_dir", "/tmp")
snapshot_name = params.get("snapshot_name", "s1")
pool_name = params.get("pool_name", "")
pool_target = params.get("pool_target", "/dev")
snapshot_disk_only = "yes" == params.get("snapshot_disk_only", "no")
new_vhbas = []
current_vhbas = []
new_vhba = []
path_to_blk = ""
lun_sl = []
new_disk = ""
pool_ins = None
old_mpath_conf = ""
mpath_conf_path = "/etc/multipath.conf"
original_mpath_conf_exist = os.path.exists(mpath_conf_path)
vm = env.get_vm(vm_name)
online_hbas = utils_npiv.find_hbas("hba")
if not online_hbas:
raise exceptions.TestSkipError("There is no online hba cards.")
old_mpath_conf = utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
replace_existing=True)
first_online_hba = online_hbas[0]
old_vhbas = utils_npiv.find_hbas("vhba")
if vm.is_dead():
vm.start()
session = vm.wait_for_login()
virt_vm = libvirt_vm.VM(vm_name, vm.params, vm.root_dir,
vm.address_cache)
old_disks = virt_vm.get_disks()
if vm.is_alive():
vm.destroy(gracefully=False)
if pool_name:
pool_ins = libvirt_storage.StoragePool()
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
vmxml_backup = vmxml.copy()
try:
# prepare a fc lun
if vd_format in ['scsi_vol']:
if pool_ins.pool_exists(pool_name):
raise exceptions.TestFail("Pool %s already exist" % pool_name)
prepare_scsi_pool(pool_name, wwnn, wwpn,
first_online_hba, pool_target)
utils_misc.wait_for(lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT)
if not utils_npiv.is_vhbas_added(old_vhbas):
raise exceptions.TestFail("vHBA not successfully created")
current_vhbas = utils_npiv.find_hbas("vhba")
new_vhba = list(set(current_vhbas).difference(
set(old_vhbas)))[0]
new_vhbas.append(new_vhba)
new_vhba_scsibus = re.sub("\D", "", new_vhba)
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
new_blks = get_blks_by_scsi(new_vhba_scsibus)
if not new_blks:
raise exceptions.TestFail("block device not found with scsi_%s",
new_vhba_scsibus)
first_blk_dev = new_blks[0]
utils_misc.wait_for(
lambda: get_symbols_by_blk(first_blk_dev),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(first_blk_dev)
if not lun_sl:
raise exceptions.TestFail("lun symbolic links not found under "
"/dev/disk/by-path/ for blk dev %s" %
first_blk_dev)
lun_dev = lun_sl[0]
path_to_blk = os.path.join(_BY_PATH_DIR, lun_dev)
elif vd_format in ['mpath', 'by_path']:
old_mpath_devs = utils_npiv.find_mpath_devs()
new_vhba = utils_npiv.nodedev_create_from_xml(
{"nodedev_parent": first_online_hba,
"scsi_wwnn": wwnn,
"scsi_wwpn": wwpn})
utils_misc.wait_for(
lambda: utils_npiv.is_vhbas_added(old_vhbas),
timeout=_TIMEOUT*2)
if not new_vhba:
raise exceptions.TestFail("vHBA not sucessfully generated.")
new_vhbas.append(new_vhba)
if vd_format == "mpath":
utils_misc.wait_for(
lambda: utils_npiv.is_mpath_devs_added(old_mpath_devs),
timeout=_TIMEOUT*5)
if not utils_npiv.is_mpath_devs_added(old_mpath_devs):
raise exceptions.TestFail("mpath dev not generated.")
cur_mpath_devs = utils_npiv.find_mpath_devs()
new_mpath_devs = list(set(cur_mpath_devs).difference(
set(old_mpath_devs)))
logging.debug("The newly added mpath dev is: %s",
new_mpath_devs)
path_to_blk = "/dev/mapper/" + new_mpath_devs[0]
elif vd_format == "by_path":
new_vhba_scsibus = re.sub("\D", "", new_vhba)
utils_misc.wait_for(lambda: get_blks_by_scsi(new_vhba_scsibus),
timeout=_TIMEOUT)
new_blks = get_blks_by_scsi(new_vhba_scsibus)
if not new_blks:
raise exceptions.TestFail("blk dev not found with scsi_%s",
new_vhba_scsibus)
first_blk_dev = new_blks[0]
utils_misc.wait_for(
lambda: get_symbols_by_blk(first_blk_dev),
timeout=_TIMEOUT)
lun_sl = get_symbols_by_blk(first_blk_dev)
if not lun_sl:
raise exceptions.TestFail("lun symbolic links not found in "
"/dev/disk/by-path/ for %s" %
first_blk_dev)
lun_dev = lun_sl[0]
path_to_blk = os.path.join(_BY_PATH_DIR, lun_dev)
else:
pass
else:
raise exceptions.TestSkipError("Not provided how to pass"
"virtual disk to VM.")
# create qcow2 file on the block device with specified size
if path_to_blk:
cmd = "qemu-img create -f qcow2 %s %s" % (path_to_blk, disk_size)
try:
process.run(cmd, shell=True)
except process.cmdError as detail:
raise exceptions.TestFail("Fail to create qcow2 on blk dev: %s",
detail)
else:
raise exceptions.TestFail("Don't have a vaild path to blk dev.")
# prepare disk xml
if "vol" in vd_format:
vol_list = utlv.get_vol_list(pool_name, vol_check=True,
timeout=_TIMEOUT*3)
test_vol = list(vol_list.keys())[0]
disk_params = {'type_name': disk_type,
'target_dev': device_target,
'target_bus': target_bus,
'source_pool': pool_name,
'source_volume': test_vol,
'driver_type': driver_type}
else:
disk_params = {'type_name': disk_type,
'device': disk_device,
'driver_name': driver_name,
'driver_type': driver_type,
'source_file': path_to_blk,
'target_dev': device_target,
'target_bus': target_bus}
if vm.is_alive():
vm.destroy(gracefully=False)
new_disk = disk.Disk()
new_disk.xml = open(utlv.create_disk_xml(disk_params)).read()
# start vm with the virtual disk
vmxml.devices = vmxml.devices.append(new_disk)
vmxml.sync()
vm.start()
session = vm.wait_for_login()
cur_disks = virt_vm.get_disks()
mount_disk = "".join(list(set(old_disks) ^ set(cur_disks)))
# mkfs and mount disk in vm, create a file on that disk.
if not mount_disk:
logging.debug("old_disk: %s, new_disk: %s", old_disks, cur_disks)
raise exceptions.TestFail("No new disk found in vm.")
mkfs_and_mount(session, mount_disk)
create_file_in_vm(session, "/mnt/before_snapshot.txt", "before")
# virsh snapshot-create-as vm s --disk-only --diskspec vda,file=path
if snapshot_disk_only:
vm_blks = list(vm.get_disk_devices().keys())
options = "%s --disk-only" % snapshot_name
for vm_blk in vm_blks:
snapshot_file = snapshot_dir + "/" + vm_blk + "." + snapshot_name
if os.path.exists(snapshot_file):
os.remove(snapshot_file)
options = options + " --diskspec %s,file=%s" % (vm_blk,
snapshot_file)
else:
options = snapshot_name
utlv.check_exit_status(virsh.snapshot_create_as(vm_name, options))
# check virsh snapshot-list
logging.debug("Running: snapshot-list %s", vm_name)
snapshot_list = virsh.snapshot_list(vm_name)
logging.debug("snapshot list is: %s", snapshot_list)
if not snapshot_list:
raise exceptions.TestFail("snapshots not found after creation.")
# snapshot-revert doesn't support external snapshot for now. so
# only check this with internal snapshot.
if not snapshot_disk_only:
create_file_in_vm(session, "/mnt/after_snapshot.txt", "after")
logging.debug("Running: snapshot-revert %s %s",
vm_name, snapshot_name)
utlv.check_exit_status(virsh.snapshot_revert(vm_name, snapshot_name))
session = vm.wait_for_login()
file_existence, file_content = get_file_in_vm(session,
"/mnt/after_snapshot.txt")
logging.debug("file exist = %s, file content = %s",
file_existence, file_content)
if file_existence:
raise exceptions.TestFail("The file created "
"after snapshot still exists.")
file_existence, file_content = get_file_in_vm(session,
"/mnt/before_snapshot.txt")
logging.debug("file eixst = %s, file content = %s",
file_existence, file_content)
if ((not file_existence) or (file_content.strip() != "before")):
raise exceptions.TestFail("The file created "
"before snapshot is lost.")
# delete snapshots
# if diskonly, delete --metadata and remove files
# if not diskonly, delete snapshot
if snapshot_disk_only:
options = "--metadata"
else:
options = ""
for snap in snapshot_list:
logging.debug("deleting snapshot %s with options %s",
snap, options)
result = virsh.snapshot_delete(vm_name, snap, options)
logging.debug("result of snapshot-delete: %s",
result.stdout.strip())
if snapshot_disk_only:
vm_blks = list(vm.get_disk_devices().keys())
for vm_blk in vm_blks:
snapshot_file = snapshot_dir + "/" + vm_blk + "." + snap
if os.path.exists(snapshot_file):
os.remove(snapshot_file)
snapshot_list = virsh.snapshot_list(vm_name)
if snapshot_list:
raise exceptions.TestFail("Snapshot not deleted: %s", snapshot_list)
except Exception as detail:
raise exceptions.TestFail("exception happens: %s", detail)
finally:
logging.debug("Start to clean up env...")
vmxml_backup.sync()
if pool_ins and pool_ins.pool_exists(pool_name):
virsh.pool_destroy(pool_name)
for new_vhba in new_vhbas:
virsh.nodedev_destroy(new_vhba)
utils_npiv.restart_multipathd()
if old_mpath_conf:
utils_npiv.prepare_multipath_conf(conf_path=mpath_conf_path,
conf_content=old_mpath_conf,
replace_existing=True)
if not original_mpath_conf_exist and os.path.exists(mpath_conf_path):
os.remove(mpath_conf_path)
