def event_enospc_cb(self, conn, dom, path, dev, action, reason, args):
if reason == "enospc":
info = {
"vm": dom.name(),
"srcPath": path,
"devAlias": dev,
}
add_notification("KCHEVENT0004W", info, '/plugins/kimchi')
msg = WokMessage("KCHEVENT0004W", info, '/plugins/kimchi')
wok_log.warning(msg.get_text())
def reload(self, name):
add_notification('WOKCONFIG0001I', plugin_name='/')
# If we proceed with the cherrypy.engine.restart() right after
# adding the notification, the server will reboot and the
# opened UIs will most likely not see the notification at all. The
# notification interval is set in wok.main.js as:
#
# wok.NOTIFICATION_INTERVAL = 2000
#
# Inserting a time.sleep(2) here will ensure that all opened
# UI had the chance to see the reload notification.
wok_log.info('Reloading WoK in two seconds ...')
time.sleep(2)
cherrypy.engine.restart()
def _execute_task(self, cb, params):
cmd = params["command"]
add_notification("GINFW0007I", plugin_name="/plugins/ginger")
cb("Firmware update is initializing. " "System will reboot in order to flash the firmware.")
# update_flash may take some time to restart host. Sleep to make sure
# user notification will show up
# FIXME this timer is based on a UI constraint. This is not a good
# design.
time.sleep(3)
output, error, rc = run_command(cmd, out_cb=cb)
if rc:
if params["operation"] == "update":
raise OperationFailed("GINFW0004E", {"error": error})
else:
raise OperationFailed("GINFW0008E", {"error": error})
cb("OK", True)
def _execute_task(self, cb, params):
cmd = params['command']
add_notification('GINFW0007I', plugin_name='/plugins/ginger')
cb('Firmware update is initializing. '
'System will reboot in order to flash the firmware.')
# update_flash may take some time to restart host. Sleep to make sure
# user notification will show up
# FIXME this timer is based on a UI constraint. This is not a good
# design.
time.sleep(3)
output, error, rc = run_command(cmd, out_cb=cb)
if rc:
if params['operation'] == 'update':
raise OperationFailed('GINFW0004E', {'error': error})
else:
raise OperationFailed('GINFW0008E', {'error': error})
cb('OK', True)
def _execute_task(self, cb, params):
cmd = params['command']
add_notification('GINFW0007I', plugin_name='/plugins/ginger')
cb('Firmware update is initializing. '
'System will reboot in order to flash the firmware.')
# update_flash may take some time to restart host. Sleep to make sure
# user notification will show up
# FIXME this timer is based on a UI constraint. This is not a good
# design.
time.sleep(3)
output, error, rc = run_command(cmd, out_cb=cb)
if rc:
if params['operation'] == 'update':
raise OperationFailed('GINFW0004E', {'error': error})
else:
raise OperationFailed('GINFW0008E', {'error': error})
cb('OK', True)
def _get_new_connection(self):
retries = 5
while True:
retries = retries - 1
try:
return libvirt.open(self.uri)
except libvirt.libvirtError:
wok_log.error('Unable to connect to libvirt.')
if not retries:
wok_log.error(
'Unable to establish connection '
'with libvirt. Please check '
'your libvirt URI which is often '
'defined in '
'/etc/libvirt/libvirt.conf'
)
add_notification(
'KCHCONN0001E', plugin_name='/plugins/kimchi'
)
return None
time.sleep(2)
def get(self, conn_id=0):
"""
Return current connection to libvirt or open a new one. Wrap all
callable libvirt methods so we can catch connection errors and handle
them by restarting the server.
"""
def wrapMethod(f):
def wrapper(*args, **kwargs):
try:
ret = f(*args, **kwargs)
return ret
except libvirt.libvirtError as e:
edom = e.get_error_domain()
ecode = e.get_error_code()
EDOMAINS = (libvirt.VIR_FROM_REMOTE,
libvirt.VIR_FROM_RPC)
ECODES = (libvirt.VIR_ERR_SYSTEM_ERROR,
libvirt.VIR_ERR_INTERNAL_ERROR,
libvirt.VIR_ERR_NO_CONNECT,
libvirt.VIR_ERR_INVALID_CONN)
if edom in EDOMAINS and ecode in ECODES:
wok_log.error('Connection to libvirt broken. '
'Recycling. ecode: %d edom: %d' %
(ecode, edom))
with LibvirtConnection._connectionLock:
self._connections[conn_id] = None
raise
wrapper.__name__ = f.__name__
wrapper.__doc__ = f.__doc__
return wrapper
if not is_libvirtd_up():
wok_log.error('Libvirt service is not active.')
add_notification('KCHCONN0002E', plugin_name='/plugins/kimchi')
return None
with LibvirtConnection._connectionLock:
conn = self._connections.get(conn_id)
if not conn:
retries = 5
while True:
retries = retries - 1
try:
conn = libvirt.open(self.uri)
break
except libvirt.libvirtError:
wok_log.error('Unable to connect to libvirt.')
if not retries:
wok_log.error("Unable to establish connection "
"with libvirt. Please check "
"your libvirt URI which is often "
"defined in "
"/etc/libvirt/libvirt.conf")
add_notification("KCHCONN0001E",
plugin_name="/plugins/kimchi")
return None
time.sleep(2)
for name in dir(libvirt.virConnect):
method = getattr(conn, name)
if callable(method) and not name.startswith('_'):
setattr(conn, name, wrapMethod(method))
for cls in self.wrappables:
for name in dir(cls):
method = getattr(cls, name)
if callable(method) and not name.startswith('_'):
setattr(cls, name, wrapMethod(method))
self._connections[conn_id] = conn
# In case we're running into troubles with keeping the
# connections alive we should place here:
# conn.setKeepAlive(interval=5, count=3)
# However the values need to be considered wisely to not affect
# hosts which are hosting a lot of virtual machines
return conn
def event_enospc_cb(self, conn, dom, path, dev, action, reason, args):
if reason == 'enospc':
info = {'vm': dom.name(), 'srcPath': path, 'devAlias': dev}
add_notification('KCHEVENT0004W', info, '/plugins/kimchi')
msg = WokMessage('KCHEVENT0004W', info, '/plugins/kimchi')
wok_log.warning(msg.get_text())
def event_enospc_cb(self, conn, dom, path, dev, action, reason, args):
if reason == 'enospc':
info = {'vm': dom.name(), 'srcPath': path, 'devAlias': dev}
add_notification('KCHEVENT0004W', info, '/plugins/kimchi')
msg = WokMessage('KCHEVENT0004W', info, '/plugins/kimchi')
wok_log.warning(msg.get_text())
def get(self, conn_id=0):
"""
Return current connection to libvirt or open a new one. Wrap all
callable libvirt methods so we can catch connection errors and handle
them by restarting the server.
"""
def wrapMethod(f):
def wrapper(*args, **kwargs):
try:
ret = f(*args, **kwargs)
return ret
except libvirt.libvirtError as e:
edom = e.get_error_domain()
ecode = e.get_error_code()
EDOMAINS = (libvirt.VIR_FROM_REMOTE, libvirt.VIR_FROM_RPC)
ECODES = (
libvirt.VIR_ERR_SYSTEM_ERROR,
libvirt.VIR_ERR_INTERNAL_ERROR,
libvirt.VIR_ERR_NO_CONNECT,
libvirt.VIR_ERR_INVALID_CONN,
)
if edom in EDOMAINS and ecode in ECODES:
wok_log.error(
'Connection to libvirt broken. '
'Recycling. ecode: %d edom: %d' % (ecode, edom)
)
with LibvirtConnection._connectionLock:
self._connections[conn_id] = None
raise
wrapper.__name__ = f.__name__
wrapper.__doc__ = f.__doc__
return wrapper
if not is_libvirtd_up():
wok_log.error('Libvirt service is not active.')
add_notification('KCHCONN0002E', plugin_name='/plugins/kimchi')
return None
elif notificationsStore.get('KCHCONN0002E') is not None:
try:
del_notification('KCHCONN0002E')
except Exception:
# If notification was not found, just ignore
pass
with LibvirtConnection._connectionLock:
conn = self._connections.get(conn_id)
if not conn:
conn = self._get_new_connection()
for name in dir(libvirt.virConnect):
method = getattr(conn, name)
if callable(method) and not name.startswith('_'):
setattr(conn, name, wrapMethod(method))
for cls in self.wrappables:
for name in dir(cls):
method = getattr(cls, name)
if callable(method) and not name.startswith('_'):
setattr(cls, name, wrapMethod(method))
self._connections[conn_id] = conn
# In case we're running into troubles with keeping the
# connections alive we should place here:
# conn.setKeepAlive(interval=5, count=3)
# However the values need to be considered wisely to not affect
# hosts which are hosting a lot of virtual machines
return conn
def get(self, conn_id=0):
"""
Return current connection to libvirt or open a new one. Wrap all
callable libvirt methods so we can catch connection errors and handle
them by restarting the server.
"""
def wrapMethod(f):
def wrapper(*args, **kwargs):
try:
ret = f(*args, **kwargs)
return ret
except libvirt.libvirtError as e:
edom = e.get_error_domain()
ecode = e.get_error_code()
EDOMAINS = (libvirt.VIR_FROM_REMOTE, libvirt.VIR_FROM_RPC)
ECODES = (libvirt.VIR_ERR_SYSTEM_ERROR,
libvirt.VIR_ERR_INTERNAL_ERROR,
libvirt.VIR_ERR_NO_CONNECT,
libvirt.VIR_ERR_INVALID_CONN)
if edom in EDOMAINS and ecode in ECODES:
wok_log.error('Connection to libvirt broken. '
'Recycling. ecode: %d edom: %d' %
(ecode, edom))
with LibvirtConnection._connectionLock:
self._connections[conn_id] = None
raise
wrapper.__name__ = f.__name__
wrapper.__doc__ = f.__doc__
return wrapper
if not is_libvirtd_up():
wok_log.error('Libvirt service is not active.')
add_notification('KCHCONN0002E', plugin_name='/plugins/kimchi')
return None
with LibvirtConnection._connectionLock:
conn = self._connections.get(conn_id)
if not conn:
retries = 5
while True:
retries = retries - 1
try:
conn = libvirt.open(self.uri)
break
except libvirt.libvirtError:
wok_log.error('Unable to connect to libvirt.')
if not retries:
wok_log.error("Unable to establish connection "
"with libvirt. Please check "
"your libvirt URI which is often "
"defined in "
"/etc/libvirt/libvirt.conf")
add_notification("KCHCONN0001E",
plugin_name="/plugins/kimchi")
return None
time.sleep(2)
for name in dir(libvirt.virConnect):
method = getattr(conn, name)
if callable(method) and not name.startswith('_'):
setattr(conn, name, wrapMethod(method))
for cls in self.wrappables:
for name in dir(cls):
method = getattr(cls, name)
if callable(method) and not name.startswith('_'):
setattr(cls, name, wrapMethod(method))
self._connections[conn_id] = conn
# In case we're running into troubles with keeping the
# connections alive we should place here:
# conn.setKeepAlive(interval=5, count=3)
# However the values need to be considered wisely to not affect
# hosts which are hosting a lot of virtual machines
return conn
