kolla-ansible/docker/swift/swift-base/build-swift-ring.py
Sam Yaple cbd42ca6e9 Move docker_templates to docker dir
Updated build.py to reflect this change.
Deprecate --template option and make it a noop.

Change-Id: I7cd98d1ee684a4c64984a49597159868152683b2
Partially-Implements: blueprint remove-docker-dir
2015-08-28 13:33:50 +00:00

94 lines
2.9 KiB
Python

#!/usr/bin/env python
# Copyright 2015 Paul Bourke
#
# 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.
"""
This script is a simple wrapper used to create and rebalance Swift ring files.
"""
import argparse
import subprocess
import sys
def setup_args():
parser = argparse.ArgumentParser()
parser.add_argument("-f", "--ring-file",
required=True,
help="Path to ring file")
parser.add_argument("-p", "--part-power",
required=True,
help="Part power")
parser.add_argument("-r", "--num-replicas",
required=True,
help="Number of replicas")
parser.add_argument("-m", "--min-part-hours",
required=True,
help="Min part hours")
parser.add_argument("-H", "--hosts",
required=True,
help="Hosts in the ring, comma delimited")
parser.add_argument("-w", "--weights",
required=True,
help="Weight of each host, comma delimited")
parser.add_argument("-d", "--devices",
required=True,
help="Device on each host, comma delimited")
parser.add_argument("-z", "--zones",
required=True,
help="Zone of each host, comma delimited")
return parser.parse_args()
def run_cmd(cmd):
print(' '.join(cmd))
subprocess.call(cmd)
def run(args):
hosts = args.hosts.split(',')
weights = args.weights.split(',')
zones = args.zones.split(',')
devices = args.devices.split(',')
if not (len(hosts) == len(weights) == len(zones) == len(devices)):
print('Error: an equal amount of hosts, devices, weights, '
'and zones are required')
sys.exit(1)
run_cmd(['/usr/bin/swift-ring-builder',
args.ring_file,
'create',
args.part_power,
args.num_replicas,
args.min_part_hours])
for i in xrange(len(hosts)):
run_cmd(['/usr/bin/swift-ring-builder',
args.ring_file,
'add',
'z{}-{}/{}'.format(zones[i], hosts[i], devices[i]),
weights[i]])
run_cmd(['/usr/bin/swift-ring-builder', args.ring_file, 'rebalance'])
def main():
args = setup_args()
run(args)
if __name__ == "__main__":
main()