python运维

环境准备

安装python3环境

# centos 安装python3
yum install python3

创建激活venv

python3 -m venv .venv
source .venv/bin/activate

zookeeper

pip install kazoo

递归复制目录

from kazoo.client import KazooClientdef copy_node(zk, source_path, destination_path):# 获取源节点的数据data, stat = zk.get(source_path)# 在目标路径创建节点zk.create(destination_path, data)# 获取子节点children = zk.get_children(source_path)for child in children:# 递归复制子节点copy_node(zk, f"{source_path}/{child}", f"{destination_path}/{child}")zk = KazooClient(hosts='127.0.0.1:2181')
zk.start()copy_node(zk, '/source_node', '/destination_node')zk.stop()

设置key的值带有换行符

也可以用zkCli工具，先把值内容写入文件，再执行命令：./zkCli.sh -server 127.0.0.1:2181 set /your/znode/path “cat /tmp/path_value”

from kazoo.client import KazooClient# 连接到 Zookeeper
zk = KazooClient(hosts='127.0.0.1:2181')
zk.start()# 要设置的 key
znode_path = "/your/znode/path"# 要设置的值，包含换行符
value = """parseTreeCache:initialCapacity: 128maximumSize: 1024
sqlStatementCache:initialCapacity: 2000maximumSize: 65535"""# 设置 Zookeeper znode 的值
zk.set(znode_path, value.encode('utf-8'))# 关闭连接
zk.stop()