charm-ceph-mon/actions/change_osd_weight.py

46 lines
1.3 KiB
Python
Executable File

#! /usr/bin/env python3
#
# Copyright 2020 Canonical Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Changes the crush weight of an OSD."""
import sys
sys.path.append("lib")
sys.path.append("hooks")
from charmhelpers.core.hookenv import function_fail, function_get, log
from charms_ceph.utils import reweight_osd
def crush_reweight(osd_num, new_weight):
"""Run reweight_osd to change OSD weight."""
try:
result = reweight_osd(str(osd_num), str(new_weight))
except Exception as e:
log(e)
function_fail("Reweight failed due to exception")
return
if not result:
function_fail("Reweight failed to complete")
return
if __name__ == "__main__":
osd_num = function_get("osd")
new_weight = function_get("weight")
crush_reweight(osd_num, new_weight)