def pretest_vm_setup(params, case):
"""
Setup vm before test
:param params: test params
:param case: test case
"""
vm_name = params.get('main_vm', '')
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
if case == 'report_failure':
libvirt_cpu.add_cpu_settings(vmxml, params)
logging.debug('Updated cpu xml: %s', vmxml.cpu)
def setup_test_mem_device(vm, params, test):
"""
Setup steps for memory device
:param vm: VM object
:param params: dict, test parameters
:param test: test object
"""
test.log.debug("Setup for testing memory device")
guest_xml = vm_xml.VMXML.new_from_inactive_dumpxml(vm.name)
libvirt_cpu.add_cpu_settings(guest_xml, params)
dimm_params = {
k.replace('memdev_', ''): v
for k, v in params.items() if k.startswith('memdev_')
}
dimm_xml = utils_hotplug.create_mem_xml(**dimm_params)
libvirt.add_vm_device(guest_xml, dimm_xml)
# Change the disk of the vm
libvirt.set_vm_disk(vm, params)
def run(test, params, env):
"""
Test hmat of memory
"""
vm_name = params.get('main_vm')
qemu_checks = []
for i in range(1, 5):
qemu_checks.extend(params.get('qemu_checks%d' % i, '').split('`'))
def check_numainfo_in_guest(check_list, content):
"""
Check if numa information in guest is correct
:param check_list: list of string under checking
:param content: the whole output from the numactl cmd
:raise: test.fail if numa info item is not in content
"""
content_str = ' '.join(content.split())
logging.debug("content_str:%s" % content_str)
for item in check_list:
item_str = ' '.join(item.split(' '))
if content_str.find(item_str) != -1:
logging.info(item)
else:
test.fail('Item %s not in content %s' % (item_str, content))
def check_list_in_content(check_list, content):
"""
Check if items in check_list are in content
:param check_list: list of string under checking
:param content: the whole content which may includes the strings
:raise: test.fail if the item in check_list is not in content
"""
for item in check_list:
if item in content:
logging.info("item: %s" % item)
else:
test.fail('Item %s not in content %s' % (item, content))
bkxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
chk_case = params.get('chk')
try:
vm = env.get_vm(vm_name)
if not libvirt_version.version_compare(6, 6, 0):
test.cancel("Current version doesn't support the function")
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
# Set cpu according to params
libvirt_cpu.add_cpu_settings(vmxml, params)
if chk_case == "hmat":
libvirt_numa.create_hmat_xml(vmxml, params)
if chk_case == "cell_distances":
libvirt_numa.create_cell_distances_xml(vmxml, params)
logging.debug(virsh.dumpxml(vm_name))
virsh.start(vm_name, debug=True, ignore_status=False)
# Check qemu command line one by one
for item in qemu_checks:
libvirt.check_qemu_cmd_line(item)
vm_session = vm.wait_for_login()
if chk_case == "hmat":
dmsg_list = []
for i in range(1, 5):
dmsg_list.extend(params.get('dmsg_checks%d' % i, '').split('`'))
content = vm_session.cmd('dmesg').strip()
check_list_in_content(dmsg_list, content)
if chk_case == "cell_distances":
# Install numactl in guest
if not utils_package.package_install('numactl', vm_session):
test.fail("package {} installation fail".format('numactl'))
check_list = []
for i in range(1, 4):
check_list.extend(params.get('numactl_exp%d' % i, '').split('`'))
numactl_output = vm_session.cmd('numactl -H').strip()
check_numainfo_in_guest(check_list, numactl_output)
finally:
if vm.is_alive():
vm.destroy(gracefully=False)
bkxml.sync()
def run(test, params, env):
"""
Test migration with memory related configuration
:param test: test object
:param params: Dictionary with the test parameters
:param env: Dictionary with test environment.
"""
migrate_vm_back = "yes" == params.get("migrate_vm_back", "no")
remote_ip = params.get("remote_ip")
remote_user = params.get("remote_user")
remote_pwd = params.get("remote_pwd")
local_ip = params.get("local_ip")
local_pwd = params.get("local_pwd")
ballooned_mem = params.get("ballooned_mem")
check = params.get("check")
remove_dict = {}
src_libvirt_file = None
remote_virsh_dargs = {
'remote_ip': remote_ip,
'remote_user': remote_user,
'remote_pwd': remote_pwd,
'unprivileged_user': None,
'ssh_remote_auth': True
}
migration_test = migration.MigrationTest()
migration_test.check_parameters(params)
# Params for NFS shared storage
shared_storage = params.get("migrate_shared_storage", "")
if shared_storage == "":
default_guest_asset = defaults.get_default_guest_os_info()['asset']
default_guest_asset = "%s.qcow2" % default_guest_asset
shared_storage = os.path.join(params.get("nfs_mount_dir"),
default_guest_asset)
logging.debug("shared_storage:%s", shared_storage)
# Params to update disk using shared storage
params["disk_type"] = "file"
params["disk_source_protocol"] = "netfs"
params["mnt_path_name"] = params.get("nfs_mount_dir")
# Local variables
server_ip = params.get("server_ip")
server_user = params.get("server_user", "root")
server_pwd = params.get("server_pwd")
virsh_args = {"debug": True}
virsh_options = params.get("virsh_options", "")
options = params.get("virsh_migrate_options", "--live --verbose")
func_params_exists = "yes" == params.get("func_params_exists", "yes")
log_file = params.get("log_outputs",
"/var/log/libvirt/libvirtd_daemons.log")
check_str_local_log = params.get("check_str_local_log", "")
libvirtd_conf_dict = eval(params.get("libvirtd_conf_dict", '{}'))
func_name = None
libvirtd_conf = None
mig_result = None
# params for migration connection
params["virsh_migrate_desturi"] = libvirt_vm.complete_uri(
params.get("migrate_dest_host"))
dest_uri = params.get("virsh_migrate_desturi")
vm_name = params.get("migrate_main_vm")
vm = env.get_vm(vm_name)
vm.verify_alive()
extra_args = {}
if func_params_exists:
extra_args.update({'func_params': params})
# For safety reasons, we'd better back up xmlfile.
new_xml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
orig_config_xml = new_xml.copy()
try:
if check == "mem_balloon":
# Update memory balloon device to correct model
membal_dict = {
'membal_model': 'virtio',
'membal_stats_period': '10'
}
libvirt.update_memballoon_xml(new_xml, membal_dict)
if check == "mem_device":
libvirt_cpu.add_cpu_settings(new_xml, params)
dimm_params = {
k.replace('memdev_', ''): v
for k, v in params.items() if k.startswith('memdev_')
}
dimm_xml = utils_hotplug.create_mem_xml(**dimm_params)
libvirt.add_vm_device(new_xml, dimm_xml)
logging.debug(virsh.dumpxml(vm_name))
# Change the disk of the vm
libvirt.set_vm_disk(vm, params)
remove_dict = {"do_search": '{"%s": "ssh:/"}' % dest_uri}
src_libvirt_file = libvirt_config.remove_key_for_modular_daemon(
remove_dict)
# Update libvirtd configuration
if libvirtd_conf_dict:
if os.path.exists(log_file):
logging.debug("Delete local libvirt log file '%s'", log_file)
os.remove(log_file)
logging.debug("Update libvirtd configuration file")
conf_type = params.get("conf_type", "libvirtd")
if conf_type == "libvirtd" and utils_split_daemons.is_modular_daemon(
):
conf_type = "virtqemud"
libvirtd_conf = libvirt.customize_libvirt_config(
libvirtd_conf_dict, conf_type)
try:
if not vm.is_alive():
vm.start()
except virt_vm.VMStartError as e:
logging.info("Failed to start VM")
test.fail("Failed to start VM: %s" % vm_name)
logging.debug("Guest xml after starting:\n%s",
vm_xml.VMXML.new_from_dumpxml(vm_name))
# Check local guest network connection before migration
vm.wait_for_login(restart_network=True).close()
migration_test.ping_vm(vm, params)
# Execute migration process
vms = [vm]
migration_test.do_migration(vms,
None,
dest_uri,
'orderly',
options,
thread_timeout=900,
ignore_status=True,
virsh_opt=virsh_options,
func=func_name,
**extra_args)
mig_result = migration_test.ret
migration_test.check_result(mig_result, params)
if int(mig_result.exit_status) == 0:
migration_test.ping_vm(vm, params, uri=dest_uri)
if check_str_local_log:
libvirt.check_logfile(check_str_local_log, log_file)
if check == "mem_balloon":
remote_virsh_session = virsh.VirshPersistent(**remote_virsh_dargs)
remote_virsh_session.setmem(vm_name, ballooned_mem, None, None,
False, "", **virsh_args)
def check_mem_balloon():
"""Check if memory balloon worked"""
memstat_ouput = remote_virsh_session.dommemstat(
vm_name, "", **virsh_args)
memstat_after = memstat_ouput.stdout_text
mem_after = memstat_after.splitlines()[0].split()[1]
if mem_after != ballooned_mem:
logging.debug("Current memory size is: %s" % mem_after)
return False
return True
check_ret = utils_misc.wait_for(check_mem_balloon, timeout=20)
if not check_ret:
test.fail("Memory is not ballooned to the expected size: %s" %
ballooned_mem)
remote_virsh_session.close_session()
# Create a remote runner for later use
runner_on_target = remote.RemoteRunner(host=remote_ip,
username=remote_user,
password=remote_pwd)
if check == "mem_device":
qemu_checks = params.get('qemu_checks', '').split('`')
logging.debug("qemu_checks:%s" % qemu_checks[0])
for qemu_check in qemu_checks:
libvirt.check_qemu_cmd_line(qemu_check, False, params,
runner_on_target)
if migrate_vm_back:
ssh_connection = utils_conn.SSHConnection(server_ip=remote_ip,
server_pwd=remote_pwd,
client_ip=local_ip,
client_pwd=local_pwd)
try:
ssh_connection.conn_check()
except utils_conn.ConnectionError:
ssh_connection.conn_setup()
ssh_connection.conn_check()
# Pre migration setup for local machine
src_full_uri = libvirt_vm.complete_uri(
params.get("migrate_source_host"))
migration_test.migrate_pre_setup(src_full_uri, params)
cmd = "virsh migrate %s %s %s" % (vm_name, options, src_full_uri)
logging.debug("Start migration: %s", cmd)
cmd_result = remote.run_remote_cmd(cmd, params, runner_on_target)
logging.info(cmd_result)
if cmd_result.exit_status:
destroy_cmd = "virsh destroy %s" % vm_name
remote.run_remote_cmd(destroy_cmd,
params,
runner_on_target,
ignore_status=False)
test.fail("Failed to run '%s' on remote: %s" %
(cmd, cmd_result))
finally:
logging.debug("Recover test environment")
# Clean VM on destination and source
try:
migration_test.cleanup_dest_vm(vm, vm.connect_uri, dest_uri)
if vm.is_alive():
vm.destroy(gracefully=False)
except Exception as err:
logging.error(err)
logging.info("Recovery VM XML configration")
orig_config_xml.sync()
if libvirtd_conf:
logging.debug("Recover the configurations")
libvirt.customize_libvirt_config(None,
is_recover=True,
config_object=libvirtd_conf)
if src_libvirt_file:
src_libvirt_file.restore()