def run(test, params, env):
"""
Test migration of multi vms.
"""
vm_names = params.get("vms").split()
if len(vm_names) < 2:
raise error.TestNAError("No multi vms provided.")
# Prepare parameters
method = params.get("virsh_migrate_method")
simultaneous = "yes" == params.get("simultaneous_migration", "no")
jobabort = "yes" == params.get("virsh_migrate_jobabort", "no")
options = params.get("virsh_migrate_options", "")
status_error = "yes" == params.get("status_error", "no")
#remote_migration = "yes" == params.get("remote_migration", "no")
remote_host = params.get("remote_host", "DEST_HOSTNAME.EXAMPLE.COM")
local_host = params.get("local_host", "SOURCE_HOSTNAME.EXAMPLE.COM")
host_user = params.get("host_user", "root")
host_passwd = params.get("host_password", "PASSWORD")
desturi = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=remote_host)
srcuri = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=local_host)
# Don't allow the defaults.
if srcuri.count('///') or srcuri.count('EXAMPLE'):
raise error.TestNAError("The srcuri '%s' is invalid", srcuri)
if desturi.count('///') or desturi.count('EXAMPLE'):
raise error.TestNAError("The desturi '%s' is invalid", desturi)
# Config ssh autologin for remote host
ssh_key.setup_ssh_key(remote_host, host_user, host_passwd, port=22)
# Prepare MigrationHelper instance
helpers = []
for vm_name in vm_names:
helper = MigrationHelper(vm_name, test, params, env)
helper.set_virsh_instance()
helper.set_migration_cmd(options, method, desturi)
helpers.append(helper)
for helper in helpers:
vm = helper.vm
if vm.is_dead():
vm.start()
vm.wait_for_login()
try:
multi_migration(helpers, simultaneous=False, jobabort=False)
finally:
for helper in helpers:
helper.virsh_instance.close_session()
helper.cleanup_vm(srcuri, desturi)
if not ret_migration:
if not status_error:
raise error.TestFail("Migration test failed.")
if not ret_jobabort:
if not status_error:
raise error.TestFail("Abort migration failed.")
def run_test(self):
"""
Start test, Creat a threading to migrate VM.
"""
remote_uri = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=self.remote_ip)
option = "--live"
if self.time_out_test:
option += " --timeout %s" % self.time_out
self.td = threading.Thread(target=virsh.migrate,
args=(self.vm_name, remote_uri, option))
self.td.start()
def run(test, params, env):
"""
Test migration of multi vms.
"""
vm_names = params.get("migrate_vms").split()
if len(vm_names) < 2:
raise exceptions.TestSkipError("No multi vms provided.")
# Prepare parameters
method = params.get("virsh_migrate_method")
jobabort = "yes" == params.get("virsh_migrate_jobabort", "no")
options = params.get("virsh_migrate_options", "")
status_error = "yes" == params.get("status_error", "no")
remote_host = params.get("remote_host", "DEST_HOSTNAME.EXAMPLE.COM")
local_host = params.get("local_host", "SOURCE_HOSTNAME.EXAMPLE.COM")
host_user = params.get("host_user", "root")
host_passwd = params.get("host_password", "PASSWORD")
nfs_shared_disk = params.get("nfs_shared_disk", True)
migration_type = params.get("virsh_migration_type", "simultaneous")
migrate_timeout = int(params.get("virsh_migrate_thread_timeout", 900))
migration_time = int(params.get("virsh_migrate_timeout", 60))
# Params for NFS and SSH setup
params["server_ip"] = params.get("migrate_dest_host")
params["server_user"] = "******"
params["server_pwd"] = params.get("migrate_dest_pwd")
params["client_ip"] = params.get("migrate_source_host")
params["client_user"] = "******"
params["client_pwd"] = params.get("migrate_source_pwd")
params["nfs_client_ip"] = params.get("migrate_dest_host")
params["nfs_server_ip"] = params.get("migrate_source_host")
desturi = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=remote_host)
srcuri = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=local_host)
# Don't allow the defaults.
if srcuri.count('///') or srcuri.count('EXAMPLE'):
raise exceptions.TestSkipError("The srcuri '%s' is invalid" % srcuri)
if desturi.count('///') or desturi.count('EXAMPLE'):
raise exceptions.TestSkipError("The desturi '%s' is invalid" % desturi)
# Config ssh autologin for remote host
ssh_key.setup_remote_ssh_key(remote_host, host_user, host_passwd, port=22,
public_key="rsa")
# Prepare local session and remote session
localrunner = remote.RemoteRunner(host=remote_host, username=host_user,
password=host_passwd)
remoterunner = remote.RemoteRunner(host=remote_host, username=host_user,
password=host_passwd)
# Configure NFS in remote host
if nfs_shared_disk:
nfs_client = nfs.NFSClient(params)
nfs_client.setup()
# Prepare MigrationHelper instance
vms = []
for vm_name in vm_names:
vm = env.get_vm(vm_name)
vms.append(vm)
try:
option = make_migration_options(method, options, migration_time)
# make sure cache=none
if "unsafe" not in options:
device_target = params.get("virsh_device_target", "sda")
for vm in vms:
if vm.is_alive():
vm.destroy()
for each_vm in vm_names:
logging.info("configure cache=none")
vmxml = vm_xml.VMXML.new_from_dumpxml(each_vm)
device_source = str(vmxml.get_disk_attr(each_vm, device_target,
'source', 'file'))
ret_detach = virsh.detach_disk(each_vm, device_target,
"--config")
status = ret_detach.exit_status
output = ret_detach.stdout.strip()
logging.info("Status:%s", status)
logging.info("Output:\n%s", output)
if not ret_detach:
raise exceptions.TestError("Detach disks fails")
subdriver = utils_test.get_image_info(device_source)['format']
ret_attach = virsh.attach_disk(each_vm, device_source,
device_target, "--driver qemu "
"--config --cache none "
"--subdriver %s" % subdriver)
status = ret_attach.exit_status
output = ret_attach.stdout.strip()
logging.info("Status:%s", status)
logging.info("Output:\n%s", output)
if not ret_attach:
raise exceptions.TestError("Attach disks fails")
for vm in vms:
if vm.is_dead():
vm.start()
vm.wait_for_login()
multi_migration(vms, srcuri, desturi, option, migration_type,
migrate_timeout, jobabort, lrunner=localrunner,
rrunner=remoterunner)
except Exception, info:
logging.error("Test failed: %s" % info)
flag_migration = False
def run(test, params, env):
"""
Test command: virsh connect.
"""
def unix_transport_setup():
"""
Setup a unix connect to local libvirtd.
"""
shutil.copy(libvirtd_conf_path, libvirtd_conf_bak_path)
with open(libvirtd_conf_path, 'r') as libvirtdconf_file:
line_list = libvirtdconf_file.readlines()
conf_dict = {r'auth_unix_rw\s*=': 'auth_unix_rw="none"\n', }
for key in conf_dict:
pattern = key
conf_line = conf_dict[key]
flag = False
for index in range(len(line_list)):
line = line_list[index]
if not re.search(pattern, line):
continue
else:
line_list[index] = conf_line
flag = True
break
if not flag:
line_list.append(conf_line)
with open(libvirtd_conf_path, 'w') as libvirtdconf_file:
libvirtdconf_file.writelines(line_list)
# restart libvirtd service
utils_libvirtd.libvirtd_restart()
def unix_transport_recover():
"""
Recover the libvirtd on local.
"""
if os.path.exists(libvirtd_conf_bak_path):
shutil.copy(libvirtd_conf_bak_path, libvirtd_conf_path)
utils_libvirtd.libvirtd_restart()
# get the params from subtests.
# params for general.
connect_arg = params.get("connect_arg", "")
connect_opt = params.get("connect_opt", "")
status_error = params.get("status_error", "no")
# params for transport connect.
local_ip = params.get("local_ip", "ENTER.YOUR.LOCAL.IP")
local_pwd = params.get("local_pwd", "ENTER.YOUR.LOCAL.ROOT.PASSWORD")
transport_type = params.get("connect_transport_type", "local")
transport = params.get("connect_transport", "ssh")
client_ip = local_ip
client_pwd = local_pwd
server_ip = local_ip
server_pwd = local_pwd
# params special for tls connect.
server_cn = params.get("connect_server_cn", "TLSServer")
client_cn = params.get("connect_client_cn", "TLSClient")
# params special for tcp connect.
tcp_port = params.get("tcp_port", '16509')
# params special for unix transport.
libvirtd_conf_path = '/etc/libvirt/libvirtd.conf'
libvirtd_conf_bak_path = '%s/libvirtd.conf.bak' % data_dir.get_tmp_dir()
# check the config
if (connect_arg == "transport" and
transport_type == "remote" and
local_ip.count("ENTER")):
test.cancel("Parameter local_ip is not configured"
"in remote test.")
if (connect_arg == "transport" and
transport_type == "remote" and
local_pwd.count("ENTER")):
test.cancel("Parameter local_pwd is not configured"
"in remote test.")
# In Ubuntu libvirt_lxc available in /usr/lib/libvirt
if (connect_arg.count("lxc") and
(not (os.path.exists("/usr/libexec/libvirt_lxc") or
os.path.exists("/usr/lib/libvirt/libvirt_lxc")))):
test.cancel("Connect test of lxc:/// is not suggested on "
"the host with no lxc driver.")
if connect_arg.count("xen") and (not os.path.exists("/var/run/xend")):
test.cancel("Connect test of xen:/// is not suggested on "
"the host with no xen driver.")
if connect_arg.count("qemu") and (not os.path.exists("/dev/kvm")):
test.cancel("Connect test of qemu:/// is not suggested"
"on the host with no qemu driver.")
if connect_arg == "transport":
canonical_uri_type = virsh.driver()
if transport == "ssh":
ssh_connection = utils_conn.SSHConnection(server_ip=server_ip,
server_pwd=server_pwd,
client_ip=client_ip,
client_pwd=client_pwd)
try:
ssh_connection.conn_check()
except utils_conn.ConnectionError:
ssh_connection.conn_setup()
ssh_connection.conn_check()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport, dest_ip=server_ip)
elif transport == "tls":
tls_connection = utils_conn.TLSConnection(server_ip=server_ip,
server_pwd=server_pwd,
client_ip=client_ip,
client_pwd=client_pwd,
server_cn=server_cn,
client_cn=client_cn)
tls_connection.conn_setup()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport, dest_ip=server_cn)
elif transport == "tcp":
tcp_connection = utils_conn.TCPConnection(server_ip=server_ip,
server_pwd=server_pwd,
tcp_port=tcp_port)
tcp_connection.conn_setup()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport,
dest_ip="%s:%s"
% (server_ip, tcp_port))
elif transport == "unix":
unix_transport_setup()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport,
dest_ip="")
else:
test.cancel("Configuration of transport=%s is "
"not recognized." % transport)
else:
connect_uri = connect_arg
try:
try:
uri = do_virsh_connect(connect_uri, connect_opt)
# connect successfully
if status_error == "yes":
test.fail("Connect successfully in the "
"case expected to fail.")
# get the expect uri when connect argument is ""
if connect_uri == "":
connect_uri = virsh.canonical_uri().split()[-1]
logging.debug("expected uri is: %s", connect_uri)
logging.debug("actual uri after connect is: %s", uri)
if not uri == connect_uri:
test.fail("Command exit normally but the uri is "
"not setted as expected.")
except process.CmdError as detail:
if status_error == "no":
test.fail("Connect failed in the case expected"
"to success.\n"
"Error: %s" % detail)
finally:
if transport == "unix":
unix_transport_recover()
if transport == "tcp":
tcp_connection.conn_recover()
if transport == "tls":
tls_connection.conn_recover()
def run(test, params, env):
"""
Test the command virsh maxvcpus
(1) Call virsh maxvcpus
(2) Call virsh -c remote_uri maxvcpus
(3) Call virsh maxvcpus with an unexpected option
"""
# get the params from subtests.
# params for general.
option = params.get("virsh_maxvcpus_options")
status_error = params.get("status_error")
connect_arg = params.get("connect_arg", "")
# params for transport connect.
local_ip = params.get("local_ip", "ENTER.YOUR.LOCAL.IP")
local_pwd = params.get("local_pwd", "ENTER.YOUR.LOCAL.ROOT.PASSWORD")
server_ip = params.get("remote_ip", local_ip)
server_pwd = params.get("remote_pwd", local_pwd)
transport_type = params.get("connect_transport_type", "local")
transport = params.get("connect_transport", "ssh")
connect_uri = None
# check the config
if (connect_arg == "transport" and transport_type == "remote"
and local_ip.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_ip is not configured "
"in remote test.")
if (connect_arg == "transport" and transport_type == "remote"
and local_pwd.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_pwd is not configured "
"in remote test.")
if connect_arg == "transport":
canonical_uri_type = virsh.driver()
if transport == "ssh":
ssh_connection = utils_conn.SSHConnection(server_ip=server_ip,
server_pwd=server_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()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport,
dest_ip=server_ip)
virsh_dargs = {
'remote_ip': server_ip,
'remote_user': '******',
'remote_pwd': server_pwd,
'ssh_remote_auth': True
}
virsh_instance = virsh.VirshPersistent(**virsh_dargs)
else:
connect_uri = connect_arg
virsh_instance = virsh
if libvirt_version.version_compare(2, 3, 0):
try:
maxvcpus = None
maxvcpus_cap = None
dom_capabilities = None
# make sure we take maxvcpus from right host, helps in case remote
try:
dom_capabilities = domcap.DomCapabilityXML(
virsh_instance=virsh_instance)
maxvcpus = dom_capabilities.max
logging.debug(
"maxvcpus calculate from domcapabilities "
"is %s", maxvcpus)
except Exception as details:
raise exceptions.TestFail("Failed to get maxvcpus from "
"domcapabilities xml:\n%s" %
dom_capabilities)
try:
cap_xml = capability_xml.CapabilityXML()
maxvcpus_cap = cap_xml.get_guest_capabilities()['hvm'][
platform.machine()]['maxcpus']
logging.debug('maxvcpus_cap is %s', maxvcpus_cap)
except Exception as details:
logging.debug(
"Failed to get maxvcpu from virsh "
"capabilities: %s", details)
# Let's fall back in case of failure
maxvcpus_cap = maxvcpus
if not maxvcpus:
raise exceptions.TestFail("Failed to get max value for vcpu"
"from domcapabilities "
"xml:\n%s" % dom_capabilities)
except Exception as details:
raise exceptions.TestFail(
"Failed get the virsh instance with uri: "
"%s\n Details: %s" % (connect_uri, details))
is_arm = "aarch" in platform.machine()
gic_version = ''
if is_arm:
for gic_enum in domcap.DomCapabilityXML()['features']['gic_enums']:
if gic_enum['name'] == "version":
gic_version = gic_enum['values'][0].get_value()
# Run test case
result = virsh.maxvcpus(option,
uri=connect_uri,
ignore_status=True,
debug=True)
maxvcpus_test = result.stdout.strip()
status = result.exit_status
# Check status_error
if status_error == "yes":
if status == 0:
raise exceptions.TestFail("Run succeeded with unsupported option!")
else:
logging.info("Run failed with unsupported option %s " % option)
elif status_error == "no":
if status == 0:
if not libvirt_version.version_compare(2, 3, 0):
if "kqemu" in option:
if not maxvcpus_test == '1':
raise exceptions.TestFail("Command output %s is not "
"expected for %s " %
(maxvcpus_test, option))
elif option in ['qemu', '--type qemu', '']:
if not maxvcpus_test == '16':
raise exceptions.TestFail("Command output %s is not "
"expected for %s " %
(maxvcpus_test, option))
else:
# No check with other types
pass
else:
# It covers all possible combinations
if option in [
'qemu', 'kvm', '--type qemu', '--type kvm', 'kqemu',
'--type kqemu', ''
]:
if (is_arm and gic_version == '2'
and option in ['kvm', '']):
if not maxvcpus_test == '8':
raise exceptions.TestFail(
"Command output %s is not "
"expected for %s " % (maxvcpus_test, option))
elif not (maxvcpus_test == maxvcpus
or maxvcpus_test == maxvcpus_cap):
raise exceptions.TestFail("Command output %s is not "
"expected for %s " %
(maxvcpus_test, option))
else:
# No check with other types
pass
else:
raise exceptions.TestFail("Run command failed")
def run(test, params, env):
"""
Test the command virsh maxvcpus
(1) Call virsh maxvcpus
(2) Call virsh -c remote_uri maxvcpus
(3) Call virsh maxvcpus with an unexpected option
"""
# get the params from subtests.
# params for general.
option = params.get("virsh_maxvcpus_options")
status_error = params.get("status_error")
connect_arg = params.get("connect_arg", "")
# params for transport connect.
local_ip = params.get("local_ip", "ENTER.YOUR.LOCAL.IP")
local_pwd = params.get("local_pwd", "ENTER.YOUR.LOCAL.ROOT.PASSWORD")
server_ip = params.get("remote_ip", local_ip)
server_pwd = params.get("remote_pwd", local_pwd)
transport_type = params.get("connect_transport_type", "local")
transport = params.get("connect_transport", "ssh")
# check the config
if (connect_arg == "transport" and
transport_type == "remote" and
local_ip.count("ENTER")):
raise error.TestNAError("Parameter local_ip is not configured"
"in remote test.")
if (connect_arg == "transport" and
transport_type == "remote" and
local_pwd.count("ENTER")):
raise error.TestNAError("Parameter local_pwd is not configured"
"in remote test.")
if connect_arg == "transport":
canonical_uri_type = virsh.driver()
if transport == "ssh":
ssh_connection = utils_conn.SSHConnection(server_ip=server_ip,
server_pwd=server_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()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport, dest_ip=server_ip)
else:
connect_uri = connect_arg
# Run test case
result = virsh.maxvcpus(option, uri=connect_uri, ignore_status=True,
debug=True)
maxvcpus_test = result.stdout.strip()
status = result.exit_status
# Check status_error
if status_error == "yes":
if status == 0:
raise error.TestFail("Run successed with unsupported option!")
else:
logging.info("Run failed with unsupported option %s " % option)
elif status_error == "no":
if status == 0:
if "kqemu" in option:
if not maxvcpus_test == '1':
raise error.TestFail("Command output %s is not expected "
"for %s " % (maxvcpus_test, option))
elif option == 'qemu' or option == '--type qemu' or option == '':
if not maxvcpus_test == '16':
raise error.TestFail("Command output %s is not expected "
"for %s " % (maxvcpus_test, option))
else:
# No check with other types
pass
else:
raise error.TestFail("Run command failed")
def run(test, params, env):
"""
Test migration of multi vms.
"""
vm_names = params.get("migrate_vms").split()
if len(vm_names) < 2:
raise error.TestNAError("No multi vms provided.")
# Prepare parameters
method = params.get("virsh_migrate_method")
simultaneous = "yes" == params.get("simultaneous_migration", "no")
jobabort = "yes" == params.get("virsh_migrate_jobabort", "no")
options = params.get("virsh_migrate_options", "")
status_error = "yes" == params.get("status_error", "no")
#remote_migration = "yes" == params.get("remote_migration", "no")
remote_host = params.get("remote_host", "DEST_HOSTNAME.EXAMPLE.COM")
local_host = params.get("local_host", "SOURCE_HOSTNAME.EXAMPLE.COM")
host_user = params.get("host_user", "root")
host_passwd = params.get("host_password", "PASSWORD")
desturi = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=remote_host)
srcuri = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=local_host)
# Don't allow the defaults.
if srcuri.count('///') or srcuri.count('EXAMPLE'):
raise error.TestNAError("The srcuri '%s' is invalid" % srcuri)
if desturi.count('///') or desturi.count('EXAMPLE'):
raise error.TestNAError("The desturi '%s' is invalid" % desturi)
# Config ssh autologin for remote host
ssh_key.setup_ssh_key(remote_host, host_user, host_passwd, port=22)
# Prepare local session and remote session
localrunner = remote.RemoteRunner(host=remote_host,
username=host_user,
password=host_passwd)
remoterunner = remote.RemoteRunner(host=remote_host,
username=host_user,
password=host_passwd)
# Prepare MigrationHelper instance
helpers = []
for vm_name in vm_names:
helper = MigrationHelper(vm_name, test, params, env)
helper.set_virsh_instance()
helper.set_migration_cmd(options, method, desturi)
helpers.append(helper)
for helper in helpers:
vm = helper.vm
if vm.is_dead():
vm.start()
vm.wait_for_login()
# Used for checking downtime
helper.vm_ip = vm.get_address()
try:
multi_migration(helpers,
simultaneous=False,
jobabort=False,
lrunner=localrunner,
rrunner=remoterunner)
finally:
for helper in helpers:
helper.virsh_instance.close_session()
helper.cleanup_vm(srcuri, desturi)
localrunner.session.close()
remoterunner.session.close()
if not ret_migration:
if not status_error:
raise error.TestFail("Migration test failed.")
if not ret_jobabort:
if not status_error:
raise error.TestFail("Abort migration failed.")
if not ret_downtime_tolerable:
raise error.TestFail("Downtime during migration is intolerable.")
def run(test, params, env):
"""
Test command: virsh connect.
"""
def unix_transport_setup():
"""
Setup a unix connect to local libvirtd.
"""
shutil.copy(libvirtd_conf_path, libvirtd_conf_bak_path)
with open(libvirtd_conf_path, 'r') as libvirtdconf_file:
line_list = libvirtdconf_file.readlines()
conf_dict = {
r'auth_unix_rw\s*=': 'auth_unix_rw="none"\n',
}
for key in conf_dict:
pattern = key
conf_line = conf_dict[key]
flag = False
for index in range(len(line_list)):
line = line_list[index]
if not re.search(pattern, line):
continue
else:
line_list[index] = conf_line
flag = True
break
if not flag:
line_list.append(conf_line)
with open(libvirtd_conf_path, 'w') as libvirtdconf_file:
libvirtdconf_file.writelines(line_list)
# restart libvirtd service
utils_libvirtd.libvirtd_restart()
def unix_transport_recover():
"""
Recover the libvirtd on local.
"""
if os.path.exists(libvirtd_conf_bak_path):
shutil.copy(libvirtd_conf_bak_path, libvirtd_conf_path)
utils_libvirtd.libvirtd_restart()
# get the params from subtests.
# params for general.
connect_arg = params.get("connect_arg", "")
connect_opt = params.get("connect_opt", "")
status_error = params.get("status_error", "no")
# params for transport connect.
local_ip = params.get("local_ip", "ENTER.YOUR.LOCAL.IP")
local_pwd = params.get("local_pwd", "ENTER.YOUR.LOCAL.ROOT.PASSWORD")
transport_type = params.get("connect_transport_type", "local")
transport = params.get("connect_transport", "ssh")
client_ip = local_ip
client_pwd = local_pwd
server_ip = local_ip
server_pwd = local_pwd
# params special for tls connect.
server_cn = params.get("connect_server_cn", "TLSServer")
client_cn = params.get("connect_client_cn", "TLSClient")
# params special for tcp connect.
tcp_port = params.get("tcp_port", '16509')
# params special for unix transport.
libvirtd_conf_path = '/etc/libvirt/libvirtd.conf'
libvirtd_conf_bak_path = '%s/libvirtd.conf.bak' % data_dir.get_tmp_dir()
# special params for test connection alive
alive = params.get('alive', None)
if alive:
check_virsh_connect_alive(test, params)
return
# check the config
if (connect_arg == "transport" and transport_type == "remote"
and local_ip.count("ENTER")):
test.cancel("Parameter local_ip is not configured" "in remote test.")
if (connect_arg == "transport" and transport_type == "remote"
and local_pwd.count("ENTER")):
test.cancel("Parameter local_pwd is not configured" "in remote test.")
# In Ubuntu libvirt_lxc available in /usr/lib/libvirt
if (connect_arg.count("lxc")
and (not (os.path.exists("/usr/libexec/libvirt_lxc")
or os.path.exists("/usr/lib/libvirt/libvirt_lxc")))):
test.cancel("Connect test of lxc:/// is not suggested on "
"the host with no lxc driver.")
if connect_arg.count("xen") and (not os.path.exists("/var/run/xend")):
test.cancel("Connect test of xen:/// is not suggested on "
"the host with no xen driver.")
if connect_arg.count("qemu") and (not os.path.exists("/dev/kvm")):
test.cancel("Connect test of qemu:/// is not suggested"
"on the host with no qemu driver.")
if connect_arg == "transport":
canonical_uri_type = virsh.driver()
if transport == "ssh":
ssh_connection = utils_conn.SSHConnection(server_ip=server_ip,
server_pwd=server_pwd,
client_ip=client_ip,
client_pwd=client_pwd)
try:
ssh_connection.conn_check()
except utils_conn.ConnectionError:
ssh_connection.conn_setup()
ssh_connection.conn_check()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport,
dest_ip=server_ip)
elif transport == "tls":
tls_connection = utils_conn.TLSConnection(server_ip=server_ip,
server_pwd=server_pwd,
client_ip=client_ip,
client_pwd=client_pwd,
server_cn=server_cn,
client_cn=client_cn,
special_cn='yes')
tls_connection.conn_setup()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport,
dest_ip=server_cn)
elif transport == "tcp":
tcp_connection = utils_conn.TCPConnection(server_ip=server_ip,
server_pwd=server_pwd,
tcp_port=tcp_port)
tcp_connection.conn_setup()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport,
dest_ip="%s:%s" % (server_ip, tcp_port))
elif transport == "unix":
unix_transport_setup()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type, transport=transport, dest_ip="")
else:
test.cancel("Configuration of transport=%s is "
"not recognized." % transport)
else:
connect_uri = connect_arg
try:
try:
uri = do_virsh_connect(connect_uri, connect_opt)
# connect successfully
if status_error == "yes":
test.fail("Connect successfully in the "
"case expected to fail.")
# get the expect uri when connect argument is ""
if connect_uri == "":
connect_uri = virsh.canonical_uri().split()[-1]
logging.debug("expected uri is: %s", connect_uri)
logging.debug("actual uri after connect is: %s", uri)
if not uri == connect_uri:
test.fail("Command exit normally but the uri is "
"not set as expected.")
except process.CmdError as detail:
if status_error == "no":
test.fail("Connect failed in the case expected"
"to success.\n"
"Error: %s" % detail)
finally:
if transport == "unix":
unix_transport_recover()
if transport == "tcp":
tcp_connection.conn_recover()
if transport == "tls":
tls_connection.conn_recover()
def run(test, params, env):
"""
Test migration of multi vms.
"""
vm_names = params.get("migrate_vms").split()
if len(vm_names) < 2:
raise exceptions.TestSkipError("No multi vms provided.")
# Prepare parameters
method = params.get("virsh_migrate_method")
jobabort = "yes" == params.get("virsh_migrate_jobabort", "no")
options = params.get("virsh_migrate_options", "")
status_error = "yes" == params.get("status_error", "no")
remote_host = params.get("remote_host", "DEST_HOSTNAME.EXAMPLE.COM")
local_host = params.get("local_host", "SOURCE_HOSTNAME.EXAMPLE.COM")
host_user = params.get("host_user", "root")
host_passwd = params.get("host_password", "PASSWORD")
nfs_shared_disk = params.get("nfs_shared_disk", True)
migration_type = params.get("virsh_migration_type", "simultaneous")
migrate_timeout = int(params.get("virsh_migrate_thread_timeout", 900))
migration_time = int(params.get("virsh_migrate_timeout", 60))
# Params for NFS and SSH setup
params["server_ip"] = params.get("migrate_dest_host")
params["server_user"] = "******"
params["server_pwd"] = params.get("migrate_dest_pwd")
params["client_ip"] = params.get("migrate_source_host")
params["client_user"] = "******"
params["client_pwd"] = params.get("migrate_source_pwd")
params["nfs_client_ip"] = params.get("migrate_dest_host")
params["nfs_server_ip"] = params.get("migrate_source_host")
desturi = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=remote_host)
srcuri = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=local_host)
# Don't allow the defaults.
if srcuri.count('///') or srcuri.count('EXAMPLE'):
raise exceptions.TestSkipError("The srcuri '%s' is invalid" % srcuri)
if desturi.count('///') or desturi.count('EXAMPLE'):
raise exceptions.TestSkipError("The desturi '%s' is invalid" % desturi)
# Config ssh autologin for remote host
ssh_key.setup_remote_ssh_key(remote_host,
host_user,
host_passwd,
port=22,
public_key="rsa")
# Prepare local session and remote session
localrunner = remote.RemoteRunner(host=remote_host,
username=host_user,
password=host_passwd)
remoterunner = remote.RemoteRunner(host=remote_host,
username=host_user,
password=host_passwd)
# Configure NFS in remote host
if nfs_shared_disk:
nfs_client = nfs.NFSClient(params)
nfs_client.setup()
# Prepare MigrationHelper instance
vms = []
for vm_name in vm_names:
vm = env.get_vm(vm_name)
vms.append(vm)
try:
option = make_migration_options(method, options, migration_time)
# make sure cache=none
if "unsafe" not in options:
device_target = params.get("virsh_device_target", "sda")
for vm in vms:
if vm.is_alive():
vm.destroy()
for each_vm in vm_names:
logging.info("configure cache=none")
vmxml = vm_xml.VMXML.new_from_dumpxml(each_vm)
device_source = str(
vmxml.get_disk_attr(each_vm, device_target, 'source',
'file'))
ret_detach = virsh.detach_disk(each_vm, device_target,
"--config")
status = ret_detach.exit_status
output = ret_detach.stdout.strip()
logging.info("Status:%s", status)
logging.info("Output:\n%s", output)
if not ret_detach:
raise exceptions.TestError("Detach disks fails")
subdriver = utils_test.get_image_info(device_source)['format']
ret_attach = virsh.attach_disk(
each_vm, device_source, device_target, "--driver qemu "
"--config --cache none "
"--subdriver %s" % subdriver)
status = ret_attach.exit_status
output = ret_attach.stdout.strip()
logging.info("Status:%s", status)
logging.info("Output:\n%s", output)
if not ret_attach:
raise exceptions.TestError("Attach disks fails")
for vm in vms:
if vm.is_dead():
vm.start()
vm.wait_for_login()
multi_migration(vms,
srcuri,
desturi,
option,
migration_type,
migrate_timeout,
jobabort,
lrunner=localrunner,
rrunner=remoterunner)
except Exception as info:
logging.error("Test failed: %s" % info)
flag_migration = False
# NFS cleanup
if nfs_shared_disk:
logging.info("NFS cleanup")
nfs_client.cleanup(ssh_auto_recover=False)
localrunner.session.close()
remoterunner.session.close()
if not (ret_migration or flag_migration):
if not status_error:
raise exceptions.TestFail("Migration test failed")
if not ret_jobabort:
if not status_error:
raise exceptions.TestFail("Abort migration failed")
if not ret_downtime_tolerable:
raise exceptions.TestFail("Downtime during migration is intolerable")
def run(test, params, env):
"""
Test command: virsh nodesuspend <target> <duration>
This command will make host suspend or hibernate, running tests on testing
grid may cause unexpected behavior.
This tests only work when test runner setup a remote host (physical or
virtual) with testing version of libvirt daemon running. After that change
the remote_xxx parameters in configuration file to corresponding value.
"""
# Retrive parameters
remote_ip = params.get('nodesuspend_remote_ip',
'ENTER.YOUR.REMOTE.EXAMPLE.COM')
remote_user = params.get('nodesuspend_remote_user', 'root')
remote_pwd = params.get('nodesuspend_remote_pwd', 'EXAMPLE.PWD')
suspend_target = params.get('suspend_target', 'mem')
suspend_time = int(params.get('suspend_time', '60'))
upper_tolerance = int(params.get('upper_tolerance', '8'))
lower_tolerance = int(params.get('lower_tolerance', '0'))
expect_succeed = params.get('expect_succeed', 'yes')
# Check if remote_ip is set
if 'EXAMPLE' in remote_ip:
msg = ('Configuration parameter `nodesuspend_remote_ip` need to be '
'changed to the ip of host to be tested')
raise error.TestNAError(msg)
# Create remote virsh session
remote_uri = libvirt_vm.get_uri_with_transport(
transport="ssh", dest_ip=remote_ip)
virsh_dargs = {
'remote_user': remote_user,
'remote_pwd': remote_pwd,
'uri': remote_uri}
try:
vrsh = virsh.VirshPersistent(**virsh_dargs)
except (LoginTimeoutError, LoginProcessTerminatedError):
raise error.TestNAError('Cannot login to remote host, Skipping')
# Run test
result = vrsh.nodesuspend(suspend_target, suspend_time, ignore_status=True)
logging.debug(result)
# Check real suspend time if command successfully run
if result.exit_status == 0:
try:
down_time = check_host_down_time(
remote_ip,
timeout=suspend_time + upper_tolerance)
# Wait for PM to return completely
time.sleep(5)
# Check if host down time within tolerance
if not (suspend_time - lower_tolerance
< down_time
< suspend_time + upper_tolerance):
raise error.TestFail('Down time (%.2fs) not in range (%ds)'
'+ (%ds) - (%ds).'
% (down_time, suspend_time,
upper_tolerance, lower_tolerance))
except TimeoutError, e:
# Mark test FAIL if down time exceeds expectation
logging.debug(e)
vrsh.close_session()
raise error.TestFail('Timeout when checking host down time.')
def run(test, params, env):
"""
Test command: virsh nodesuspend <target> <duration>
This command will make host suspend or hibernate, running tests on testing
grid may cause unexpected behavior.
This tests only work when test runner setup a remote host (physical or
virtual) with testing version of libvirt daemon running. After that change
the remote_xxx parameters in configuration file to corresponding value.
"""
# Retrive parameters
remote_ip = params.get('nodesuspend_remote_ip',
'ENTER.YOUR.REMOTE.EXAMPLE.COM')
remote_user = params.get('nodesuspend_remote_user', 'root')
remote_pwd = params.get('nodesuspend_remote_pwd', 'EXAMPLE.PWD')
suspend_target = params.get('suspend_target', 'mem')
suspend_time = int(params.get('suspend_time', '60'))
upper_tolerance = int(params.get('upper_tolerance', '8'))
lower_tolerance = int(params.get('lower_tolerance', '0'))
expect_succeed = params.get('expect_succeed', 'yes')
# Check if remote_ip is set
if 'EXAMPLE' in remote_ip:
msg = ('Configuration parameter `nodesuspend_remote_ip` need to be '
'changed to the ip of host to be tested')
raise error.TestNAError(msg)
# Create remote virsh session
remote_uri = libvirt_vm.get_uri_with_transport(transport="ssh",
dest_ip=remote_ip)
virsh_dargs = {
'remote_user': remote_user,
'remote_pwd': remote_pwd,
'uri': remote_uri
}
try:
vrsh = virsh.VirshPersistent(**virsh_dargs)
except (LoginTimeoutError, LoginProcessTerminatedError):
raise error.TestNAError('Cannot login to remote host, Skipping')
# Run test
result = vrsh.nodesuspend(suspend_target, suspend_time, ignore_status=True)
logging.debug(result)
# Check real suspend time if command successfully run
if result.exit_status == 0:
try:
down_time = check_host_down_time(remote_ip,
timeout=suspend_time +
upper_tolerance)
# Wait for PM to return completely
time.sleep(5)
# Check if host down time within tolerance
if not (suspend_time - lower_tolerance < down_time <
suspend_time + upper_tolerance):
raise error.TestFail('Down time (%.2fs) not in range (%ds)'
'+ (%ds) - (%ds).' %
(down_time, suspend_time, upper_tolerance,
lower_tolerance))
except TimeoutError, e:
# Mark test FAIL if down time exceeds expectation
logging.debug(e)
vrsh.close_session()
raise error.TestFail('Timeout when checking host down time.')
def run(test, params, env):
"""
Test the command virsh maxvcpus
(1) Call virsh maxvcpus
(2) Call virsh -c remote_uri maxvcpus
(3) Call virsh maxvcpus with an unexpected option
"""
# get the params from subtests.
# params for general.
option = params.get("virsh_maxvcpus_options")
status_error = params.get("status_error")
connect_arg = params.get("connect_arg", "")
# params for transport connect.
local_ip = params.get("local_ip", "ENTER.YOUR.LOCAL.IP")
local_pwd = params.get("local_pwd", "ENTER.YOUR.LOCAL.ROOT.PASSWORD")
server_ip = params.get("remote_ip", local_ip)
server_pwd = params.get("remote_pwd", local_pwd)
transport_type = params.get("connect_transport_type", "local")
transport = params.get("connect_transport", "ssh")
connect_uri = None
# check the config
if (connect_arg == "transport" and
transport_type == "remote" and
local_ip.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_ip is not configured "
"in remote test.")
if (connect_arg == "transport" and
transport_type == "remote" and
local_pwd.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_pwd is not configured "
"in remote test.")
if connect_arg == "transport":
canonical_uri_type = virsh.driver()
if transport == "ssh":
ssh_connection = utils_conn.SSHConnection(server_ip=server_ip,
server_pwd=server_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()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport, dest_ip=server_ip)
else:
connect_uri = connect_arg
if libvirt_version.version_compare(2, 3, 0):
try:
maxvcpus = None
dom_capabilities = None
# make sure we take maxvcpus from right host, helps incase remote
try:
dom_capabilities = domcap.DomCapabilityXML()
maxvcpus = dom_capabilities.max
logging.debug("maxvcpus calculate from domcapabilities "
"is %s", maxvcpus)
except Exception as details:
raise exceptions.TestFail("Failed to get maxvcpus from "
"domcapabilities xml:\n%s"
% dom_capabilities)
if not maxvcpus:
raise exceptions.TestFail("Failed to get max value for vcpu"
"from domcapabilities "
"xml:\n%s" % dom_capabilities)
except Exception as details:
raise exceptions.TestFail("Failed get the virsh instance with uri: "
"%s\n Details: %s" % (connect_uri, details))
is_arm = "aarch" in platform.machine()
if is_arm:
for gic_enum in domcap.DomCapabilityXML()['features']['gic_enums']:
if gic_enum['name'] == "version":
gic_version = gic_enum['values'][0].get_value()
# Run test case
result = virsh.maxvcpus(option, uri=connect_uri, ignore_status=True,
debug=True)
maxvcpus_test = result.stdout.strip()
status = result.exit_status
# Check status_error
if status_error == "yes":
if status == 0:
raise exceptions.TestFail("Run successed with unsupported option!")
else:
logging.info("Run failed with unsupported option %s " % option)
elif status_error == "no":
if status == 0:
if not libvirt_version.version_compare(2, 3, 0):
if "kqemu" in option:
if not maxvcpus_test == '1':
raise exceptions.TestFail("Command output %s is not "
"expected for %s " % (maxvcpus_test, option))
elif option in ['qemu', '--type qemu', '']:
if not maxvcpus_test == '16':
raise exceptions.TestFail("Command output %s is not "
"expected for %s " % (maxvcpus_test, option))
else:
# No check with other types
pass
else:
# It covers all possible combinations
if option in ['qemu', 'kvm', '--type qemu', '--type kvm', 'kqemu', '--type kqemu', '']:
if (is_arm and gic_version == '2' and option in ['kvm', '']):
if not maxvcpus_test == '8':
raise exceptions.TestFail("Command output %s is not "
"expected for %s " % (maxvcpus_test, option))
elif not maxvcpus_test == maxvcpus:
raise exceptions.TestFail("Command output %s is not "
"expected for %s " % (maxvcpus_test, option))
else:
# No check with other types
pass
else:
raise exceptions.TestFail("Run command failed")
def run(test, params, env):
"""
Test the command virsh maxvcpus
(1) Call virsh maxvcpus
(2) Call virsh -c remote_uri maxvcpus
(3) Call virsh maxvcpus with an unexpected option
"""
# get the params from subtests.
# params for general.
option = params.get("virsh_maxvcpus_options")
status_error = params.get("status_error")
connect_arg = params.get("connect_arg", "")
# params for transport connect.
local_ip = params.get("local_ip", "ENTER.YOUR.LOCAL.IP")
local_pwd = params.get("local_pwd", "ENTER.YOUR.LOCAL.ROOT.PASSWORD")
server_ip = params.get("remote_ip", local_ip)
server_pwd = params.get("remote_pwd", local_pwd)
transport_type = params.get("connect_transport_type", "local")
transport = params.get("connect_transport", "ssh")
connect_uri = None
# check the config
if (connect_arg == "transport" and
transport_type == "remote" and
local_ip.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_ip is not configured "
"in remote test.")
if (connect_arg == "transport" and
transport_type == "remote" and
local_pwd.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_pwd is not configured "
"in remote test.")
if connect_arg == "transport":
canonical_uri_type = virsh.driver()
if transport == "ssh":
ssh_connection = utils_conn.SSHConnection(server_ip=server_ip,
server_pwd=server_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()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport, dest_ip=server_ip)
else:
connect_uri = connect_arg
if libvirt_version.version_compare(2, 3, 0):
try:
maxvcpus = None
dom_capabilities = None
# make sure we take maxvcpus from right host, helps incase remote
try:
dom_capabilities = domcap.DomCapabilityXML()
maxvcpus = dom_capabilities.max
logging.debug("maxvcpus calculate from domcapabilities "
"is %s", maxvcpus)
except:
raise exceptions.TestFail("Failed to get maxvcpus from "
"domcapabilities xml:\n%s"
% dom_capabilities)
if not maxvcpus:
raise exceptions.TestFail("Failed to get max value for vcpu"
"from domcapabilities "
"xml:\n%s" % dom_capabilities)
except Exception, details:
raise exceptions.TestFail("Failed get the virsh instance with uri: "
"%s\n Details: %s" % (connect_uri, details))
def run(test, params, env):
"""
Test the command virsh maxvcpus
(1) Call virsh maxvcpus
(2) Call virsh -c remote_uri maxvcpus
(3) Call virsh maxvcpus with an unexpected option
"""
# get the params from subtests.
# params for general.
option = params.get("virsh_maxvcpus_options")
status_error = params.get("status_error")
connect_arg = params.get("connect_arg", "")
# params for transport connect.
local_ip = params.get("local_ip", "ENTER.YOUR.LOCAL.IP")
local_pwd = params.get("local_pwd", "ENTER.YOUR.LOCAL.ROOT.PASSWORD")
server_ip = params.get("remote_ip", local_ip)
server_pwd = params.get("remote_pwd", local_pwd)
transport_type = params.get("connect_transport_type", "local")
transport = params.get("connect_transport", "ssh")
connect_uri = None
# check the config
if (connect_arg == "transport" and transport_type == "remote"
and local_ip.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_ip is not configured "
"in remote test.")
if (connect_arg == "transport" and transport_type == "remote"
and local_pwd.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_pwd is not configured "
"in remote test.")
if connect_arg == "transport":
canonical_uri_type = virsh.driver()
if transport == "ssh":
ssh_connection = utils_conn.SSHConnection(server_ip=server_ip,
server_pwd=server_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()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport,
dest_ip=server_ip)
else:
connect_uri = connect_arg
if libvirt_version.version_compare(2, 3, 0):
try:
maxvcpus = None
dom_capabilities = None
# make sure we take maxvcpus from right host, helps incase remote
try:
dom_capabilities = domcap.DomCapabilityXML()
maxvcpus = dom_capabilities.max
logging.debug(
"maxvcpus calculate from domcapabilities "
"is %s", maxvcpus)
except:
raise exceptions.TestFail("Failed to get maxvcpus from "
"domcapabilities xml:\n%s" %
dom_capabilities)
if not maxvcpus:
raise exceptions.TestFail("Failed to get max value for vcpu"
"from domcapabilities "
"xml:\n%s" % dom_capabilities)
except Exception, details:
raise exceptions.TestFail(
"Failed get the virsh instance with uri: "
"%s\n Details: %s" % (connect_uri, details))
def run(test, params, env):
"""
Test the command virsh maxvcpus
(1) Call virsh maxvcpus
(2) Call virsh -c remote_uri maxvcpus
(3) Call virsh maxvcpus with an unexpected option
"""
# get the params from subtests.
# params for general.
option = params.get("virsh_maxvcpus_options")
status_error = params.get("status_error")
connect_arg = params.get("connect_arg", "")
# params for transport connect.
local_ip = params.get("local_ip", "ENTER.YOUR.LOCAL.IP")
local_pwd = params.get("local_pwd", "ENTER.YOUR.LOCAL.ROOT.PASSWORD")
server_ip = params.get("remote_ip", local_ip)
server_pwd = params.get("remote_pwd", local_pwd)
transport_type = params.get("connect_transport_type", "local")
transport = params.get("connect_transport", "ssh")
# check the config
if (connect_arg == "transport" and transport_type == "remote"
and local_ip.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_ip is not configured "
"in remote test.")
if (connect_arg == "transport" and transport_type == "remote"
and local_pwd.count("ENTER")):
raise exceptions.TestSkipError("Parameter local_pwd is not configured "
"in remote test.")
if connect_arg == "transport":
canonical_uri_type = virsh.driver()
if transport == "ssh":
ssh_connection = utils_conn.SSHConnection(server_ip=server_ip,
server_pwd=server_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()
connect_uri = libvirt_vm.get_uri_with_transport(
uri_type=canonical_uri_type,
transport=transport,
dest_ip=server_ip)
else:
connect_uri = connect_arg
if libvirt_version.version_compare(2, 3, 0):
try:
maxvcpus = None
# make sure we take maxvcpus from right host, helps incase remote
virsh_dargs = {'uri': connect_uri}
virsh_instance = virsh.Virsh(virsh_dargs)
try:
capa = capability_xml.CapabilityXML(virsh_instance)
host_arch = capa.arch
maxvcpus = capa.get_guest_capabilities(
)['hvm'][host_arch]['maxcpus']
except:
raise exceptions.TestFail("Failed to get maxvcpus from "
"capabilities xml\n%s" % capa)
if not maxvcpus:
raise exceptions.TestFail("Failed to get guest section for "
"host arch: %s from capabilities "
"xml\n%s" % (host_arch, capa))
except Exception, details:
raise exceptions.TestFail(
"Failed get the virsh instance with uri: "
"%s\n Details: %s" % (connect_uri, details))
