Manage a pool of nodes for a distributed test infrastructure
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nodepool/tools/print-zk.py

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1.7 KiB

#!/usr/bin/env python
#
# 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.
import argparse
import logging
import nodepool.config
from nodepool.zk import zookeeper as zk
from nodepool.zk import ZooKeeperClient
# A script to print the zookeeper tree given a nodepool config file.
logging.basicConfig()
parser = argparse.ArgumentParser(description='Print the zookeeper tree')
parser.add_argument('-c', dest='config',
default='/etc/nodepool/nodepool.yaml',
help='path to config file')
args = parser.parse_args()
config = nodepool.config.loadConfig(args.config)
zk_client = ZooKeeperClient(
config.zookeeper_servers,
tls_cert=config.zookeeper_tls_cert,
tls_key=config.zookeeper_tls_key,
tls_ca=config.zookeeper_tls_ca,
timeout=config.zookeeper_timeout,
)
zk_client.connect()
zk = zk.ZooKeeper(zk_client, enable_cache=False)
def join(a, b):
if a.endswith('/'):
return a+b
return a+'/'+b
def print_tree(node):
data, stat = zk.kazoo_client.get(node)
print("Node: %s %s" % (node, stat))
if data:
print(data)
for child in zk.kazoo_client.get_children(node):
print()
print_tree(join(node, child))
print_tree('/')
zk.disconnect()