Revision aa922d64 lib/backend.py
| b/lib/backend.py | ||
|---|---|---|
| 122 | 122 |
return utils.PathJoin(pathutils.INSTANCE_REASON_DIR, instance_name) |
| 123 | 123 |
|
| 124 | 124 |
|
| 125 |
class InstReason(object): |
|
| 126 |
"""Class representing the reason for a change of state of a VM. |
|
| 127 |
|
|
| 128 |
It is used to allow an easy serialization of the reason, so that it can be |
|
| 129 |
written on a file. |
|
| 130 |
|
|
| 131 |
""" |
|
| 132 |
def __init__(self, source, text): |
|
| 133 |
"""Initialize the class with all the required values. |
|
| 134 |
|
|
| 135 |
@type text: string |
|
| 136 |
@param text: The textual description of the reason for changing state |
|
| 137 |
@type source: string |
|
| 138 |
@param source: The source of the state change (RAPI, CLI, ...) |
|
| 139 |
|
|
| 140 |
""" |
|
| 141 |
self.source = source |
|
| 142 |
self.text = text |
|
| 143 |
|
|
| 144 |
def GetJson(self): |
|
| 145 |
"""Get the JSON representation of the InstReason. |
|
| 146 |
|
|
| 147 |
@rtype: string |
|
| 148 |
@return : The JSON representation of the object |
|
| 149 |
|
|
| 150 |
""" |
|
| 151 |
return serializer.DumpJson(dict(source=self.source, text=self.text)) |
|
| 152 |
|
|
| 153 |
def Store(self, instance_name): |
|
| 154 |
"""Serialize on a file the reason for the last state change of an instance. |
|
| 155 |
|
|
| 156 |
The exact location of the file depends on the name of the instance and on |
|
| 157 |
the configuration of the Ganeti cluster defined at deploy time. |
|
| 158 |
|
|
| 159 |
@type instance_name: string |
|
| 160 |
@param instance_name: The name of the instance |
|
| 161 |
@rtype: None |
|
| 162 |
|
|
| 163 |
""" |
|
| 164 |
filename = GetInstReasonFilename(instance_name) |
|
| 165 |
utils.WriteFile(filename, data=self.GetJson()) |
|
| 166 |
|
|
| 167 |
|
|
| 168 | 125 |
def _Fail(msg, *args, **kwargs): |
| 169 | 126 |
"""Log an error and the raise an RPCFail exception. |
| 170 | 127 |
|
| ... | ... | |
| 1451 | 1408 |
_RemoveBlockDevLinks(iname, instance.disks) |
| 1452 | 1409 |
|
| 1453 | 1410 |
|
| 1454 |
def InstanceReboot(instance, reboot_type, shutdown_timeout, reason):
|
|
| 1411 |
def InstanceReboot(instance, reboot_type, shutdown_timeout): |
|
| 1455 | 1412 |
"""Reboot an instance. |
| 1456 | 1413 |
|
| 1457 | 1414 |
@type instance: L{objects.Instance}
|
| ... | ... | |
| 1481 | 1438 |
if reboot_type == constants.INSTANCE_REBOOT_SOFT: |
| 1482 | 1439 |
try: |
| 1483 | 1440 |
hyper.RebootInstance(instance) |
| 1484 |
reason.Store(instance.name) |
|
| 1485 | 1441 |
except errors.HypervisorError, err: |
| 1486 | 1442 |
_Fail("Failed to soft reboot instance %s: %s", instance.name, err)
|
| 1487 | 1443 |
elif reboot_type == constants.INSTANCE_REBOOT_HARD: |
| 1488 | 1444 |
try: |
| 1489 | 1445 |
InstanceShutdown(instance, shutdown_timeout) |
| 1490 | 1446 |
result = StartInstance(instance, False) |
| 1491 |
reason.Store(instance.name) |
|
| 1492 | 1447 |
return result |
| 1493 | 1448 |
except errors.HypervisorError, err: |
| 1494 | 1449 |
_Fail("Failed to hard reboot instance %s: %s", instance.name, err)
|
Also available in: Unified diff