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

Class Variables

[hide private]

HPATH = "node-add"

HTYPE = "NODE"

_NFLAGS = ["master_capable", "vm_capable"]

Inherited from base.LogicalUnit: REQ_BGL

Instance Variables

[hide private]

Inherited from base.LogicalUnit: dry_run_result

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

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: base.LogicalUnit.CheckArguments: (inherited documentation)

BuildHooksEnv(self)

source code

Build hooks env.

This will run on all nodes before, and on all nodes + the new node after.

Returns: dict: Dictionary containing the environment that will be used for running the hooks for this LU. The keys of the dict must not be prefixed with "GANETI_"--that'll be added by the hooks runner. The hooks runner will extend the environment with additional variables. If no environment should be defined, an empty dictionary should be returned (not None).
Overrides: base.LogicalUnit.BuildHooksEnv

BuildHooksNodes(self)

source code

Build hooks nodes.

Returns: tuple; (list, list) or (list, list, list): Tuple containing a list of node UUIDs on which the hook should run before the execution and a list of node UUIDs on which the hook should run after the execution. As it might be possible that the node UUID is not known at the time this method is invoked, an optional third list can be added which contains node names on which the hook should run after the execution (in case of node add, for instance). No nodes should be returned as an empty list (and not None).
Overrides: base.LogicalUnit.BuildHooksNodes

CheckPrereq(self)

source code

Check prerequisites.

This checks:

the new node is not already in the config
it is resolvable
its parameters (single/dual homed) matches the cluster

Any errors are signaled by raising errors.OpPrereqError.

Overrides: base.LogicalUnit.CheckPrereq

Exec(self, feedback_fn)

source code

Adds the new node to the cluster.

Overrides: base.LogicalUnit.Exec