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hangx969
python-operation-scripts
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list-namespaces.py
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"""
Kubernetes命名空间列表获取脚本
功能描述:
该脚本使用Kubernetes Python客户端库连接到Kubernetes集群,
获取并显示集群中所有命名空间的信息。提供了两种方式来获取
命名空间列表:直接遍历和函数封装,适用于多租户管理、
资源隔离查看、命名空间审计等场景。
技术实现:
- kubernetes.config.load_kube_config(): 加载Kubernetes配置
- kubernetes.client.CoreV1Api(): 创建Core API v1客户端
- v1.list_namespace(): 获取所有命名空间列表
* 返回V1NamespaceList对象,包含所有命名空间详细信息
- namespaces.items: 命名空间列表,每个元素为V1Namespace对象
- ns.metadata.name: 获取命名空间名称
"""
from kubernetes import config, client
# 导入集群kubeconfig文件
config.load_kube_config(config_file='kubernetes/kubeconfig-local')
# 创建对象
v1 = client.CoreV1Api()
# 返回的是一个对象,包含所有ns的json属性
namespaces = v1.list_namespace()
# for ns in namespaces.items:
# print(ns)
for ns in namespaces.items:
# 打印每个ns的name
print(ns.metadata.name)
# 用函数获取集群namespace
def get_namespace():
return [ns.metadata.name for ns in v1.list_namespace().items]
if __name__ == '__main__':
ns_list = get_namespace()
for ns in ns_list:
print(ns)
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