ganeti.cmdlib.LUPowercycleNode

Class LUPowercycleNode

Powercycles a node.

Instance Methods

[hide private]

CheckArguments(self)
Check syntactic validity for the opcode arguments.

source code

ExpandNames(self)
Locking for PowercycleNode.

source code

Exec(self, feedback_fn)
Reboots a node.

source code

Inherited from NoHooksLU: BuildHooksEnv

Inherited from LogicalUnit: CheckPrereq, DeclareLocks, HooksCallBack, __init__

Inherited from LogicalUnit (private): _ExpandAndLockInstance, _LockInstancesNodes

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Class Variables

[hide private]

_OP_PARAMS = [_PNodeName, _PForce,]
a list of opcode attributes, their defaults values they should get if not already defined, and types they must match

REQ_BGL = False

Inherited from NoHooksLU: HPATH, HTYPE

Inherited from LogicalUnit: ssh

Properties

[hide private]

Inherited from object: __class__

CheckArguments(self)

source code

Check syntactic validity for the opcode arguments.

This method is for doing a simple syntactic check and ensure validity of opcode parameters, without any cluster-related checks. While the same can be accomplished in ExpandNames and/or CheckPrereq, doing these separate is better because:

ExpandNames is left as as purely a lock-related function
CheckPrereq is run after we have acquired locks (and possible waited for them)

The function is allowed to change the self.op attribute so that later methods can no longer worry about missing parameters.

Overrides: LogicalUnit.CheckArguments: (inherited documentation)

ExpandNames(self)

source code

Locking for PowercycleNode.

This is a last-resort option and shouldn't block on other jobs. Therefore, we grab no locks.

Overrides: LogicalUnit.ExpandNames

Exec(self, feedback_fn)

source code

Reboots a node.

Overrides: LogicalUnit.Exec