ganeti.cmdlib.node.LUNodeAdd

class documentation

class LUNodeAdd(LogicalUnit):

Logical unit for adding node to the cluster.

Method	`BuildHooksEnv`	Build hooks env.
Method	`BuildHooksNodes`	Build hooks nodes.
Method	`CheckArguments`	Check syntactic validity for the opcode arguments.
Method	`CheckPrereq`	Check prerequisites.
Method	`Exec`	Adds the new node to the cluster.
Method	`PreparePostHookNodes`	Extend list of nodes to run the post LU hook.
Constant	`HPATH`	Undocumented
Instance Variable	`changed_primary_ip`	Undocumented
Instance Variable	`hostname`	Undocumented
Instance Variable	`master_candidate`	Undocumented
Instance Variable	`new_disk_state`	Undocumented
Instance Variable	`new_hv_state`	Undocumented
Instance Variable	`new_node`	Undocumented
Instance Variable	`node_group`	Undocumented
Instance Variable	`primary_ip_family`	Undocumented
Method	`_InitOpenVSwitch`	Undocumented
Method	`_SshUpdate`	Update the SSH setup of all nodes after adding a new node.
Constant	`_NFLAGS`	Undocumented

Inherited from LogicalUnit:

Method	`__init__`	Constructor for LogicalUnit.
Method	`AssertReleasedLocks`	Raise AssertionError if the LU holds some locks of the given level.
Method	`DeclareLocks`	Declare LU locking needs for a level
Method	`ExpandNames`	Expand names for this LU.
Method	`HooksCallBack`	Notify the LU about the results of its hooks.
Method	`owned_locks`	Return the list of locks owned by the LU at a given level.
Method	`PrepareRetry`	Prepare the LU to run again.
Method	`release_request`	Return a request to release the specified locks of the given level.
Method	`WConfdClient`	Undocumented
Constant	`HTYPE`	Undocumented
Constant	`REQ_BGL`	Undocumented
Instance Variable	`add_locks`	Undocumented
Instance Variable	`cfg`	Undocumented
Instance Variable	`dont_collate_locks`	Undocumented
Instance Variable	`dry_run_result`	the value (if any) that will be returned to the caller in dry-run mode (signalled by opcode dry_run parameter)
Instance Variable	`Log`	Undocumented
Instance Variable	`LogInfo`	Undocumented
Instance Variable	`LogStep`	Undocumented
Instance Variable	`LogWarning`	Undocumented
Instance Variable	`needed_locks`	Undocumented
Instance Variable	`op`	Undocumented
Instance Variable	`opportunistic_locks`	Undocumented
Instance Variable	`opportunistic_locks_count`	Undocumented
Instance Variable	`proc`	Undocumented
Instance Variable	`recalculate_locks`	Undocumented
Instance Variable	`rpc`	Undocumented
Instance Variable	`share_locks`	Undocumented
Instance Variable	`tasklets`	Undocumented
Instance Variable	`wconfd`	Undocumented
Instance Variable	`wconfdcontext`	Undocumented
Instance Variable	`wconfdlocks`	Undocumented
Method	`_ExpandAndLockInstance`	Helper function to expand and lock an instance.
Method	`_LockInstancesNodes`	Helper function to declare instances' nodes for locking.

def BuildHooksEnv(self): ¶

overrides ganeti.cmdlib.base.LogicalUnit.BuildHooksEnv

Build hooks env.

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

def BuildHooksNodes(self): ¶

overrides ganeti.cmdlib.base.LogicalUnit.BuildHooksNodes

Build hooks nodes.

def CheckArguments(self): ¶

overrides ganeti.cmdlib.base.LogicalUnit.CheckArguments

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.

def CheckPrereq(self): ¶

overrides ganeti.cmdlib.base.LogicalUnit.CheckPrereq

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.

def Exec(self, feedback_fn): ¶

overrides ganeti.cmdlib.base.LogicalUnit.Exec

Adds the new node to the cluster.

def PreparePostHookNodes(self, post_hook_node_uuids): ¶

overrides ganeti.cmdlib.base.LogicalUnit.PreparePostHookNodes

Extend list of nodes to run the post LU hook.

This method allows LUs to change the list of node UUIDs on which the post hook should run after the LU has been executed but before the post hook is run.

Parameters
post_hook_node_uuids:list	The initial list of node UUIDs to run the post hook on, as returned by `BuildHooksNodes`.
Returns
list	list of node UUIDs on which the post hook should run. The default implementation returns the passed in `post_hook_node_uuids`, but custom implementations can choose to alter the list.

HPATH: str = ¶

overrides ganeti.cmdlib.base.LogicalUnit.HPATH

Undocumented

Value

'node-add'

changed_primary_ip: bool = ¶

Undocumented

hostname = ¶

Undocumented

master_candidate = ¶

Undocumented

new_disk_state = ¶

Undocumented

new_hv_state = ¶

Undocumented

new_node = ¶

Undocumented

node_group = ¶

Undocumented

primary_ip_family = ¶

Undocumented

def _InitOpenVSwitch(self): ¶

Undocumented

def _SshUpdate(self, new_node_uuid, new_node_name, is_master_candidate, is_potential_master_candidate, rpcrunner, readd, feedback_fn): ¶

Update the SSH setup of all nodes after adding a new node.

Parameters
new_node_uuid	Undocumented
new_node_name	Undocumented
is_master_candidate	Undocumented
is_potential_master_candidate	Undocumented
rpcrunner	Undocumented
readd:boolean	whether or not this node is readded
feedback_fn	Undocumented

_NFLAGS: list[str] = ¶

Undocumented

Value

['master_capable', 'vm_capable']