Commit 17e82923 authored by Luca Bigliardi's avatar Luca Bigliardi
Browse files

HooksMaster: list of nodes override



Allow the caller of HooksMaster.RunPhase() to specify an alternative list of
nodes.
Signed-off-by: default avatarLuca Bigliardi <shammash@google.com>
Reviewed-by: default avatarIustin Pop <iustin@google.com>
parent 5b9107ff
......@@ -333,23 +333,27 @@ class HooksMaster(object):
return self.callfn(node_list, hpath, phase, env)
def RunPhase(self, phase):
def RunPhase(self, phase, nodes=None):
"""Run all the scripts for a phase.
This is the main function of the HookMaster.
@param phase: one of L{constants.HOOKS_PHASE_POST} or
L{constants.HOOKS_PHASE_PRE}; it denotes the hooks phase
@param nodes: overrides the predefined list of nodes for the given phase
@return: the processed results of the hooks multi-node rpc call
@raise errors.HooksFailure: on communication failure to the nodes
"""
if not self.node_list[phase]:
if not self.node_list[phase] and not nodes:
# empty node list, we should not attempt to run this as either
# we're in the cluster init phase and the rpc client part can't
# even attempt to run, or this LU doesn't do hooks at all
return
hpath = self.lu.HPATH
if nodes is not None:
results = self._RunWrapper(nodes, hpath, phase)
else:
results = self._RunWrapper(self.node_list[phase], hpath, phase)
if phase == constants.HOOKS_PHASE_PRE:
errs = []
......
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