英文:
Stop Prometheus client in python script
问题
需要使用Python代码停止prometheus_client.http_server。
我有一个外部的Python应用程序需要进行单元测试。它有一个方法使用start_http_server(port)启动prometheus_client。我需要使用多个测试来对其进行单元测试（实际上，我不测试prometheus，而是测试其他功能，但无法将prometheus从代码中删除）。由于我需要进行多个测试，因此需要多次启动和停止方法，但在第一次尝试后它会退出，因为Prometheus客户端正在占用端口，无法再次在相同端口上启动（OSError: [Errno 48] Address already in use）。
问题是：是否有办法使用Python停止prometheus_client.http_server？在prometheus_client文档中没有找到任何关于关闭它的信息...
英文:
Need to stop prometheus_client.http_server with Python code.
I have external Python application that is to be unit-tested. It has method that starts prometheus_client with start_http_server(port). I need to unit-test it with several tests (indeed I don't test prometheus but other functionalities but can't take prometheus out of the code). As I need several tests so I need to start-stop method several times, but it exits after first attempt as Prometheus client is holding port and can't start again on the same port (OSError: [Errno 48] Address already in use).
The question: is there any way to stop prometheus_client.http_server with Python? Didn't find anything in prometheus_client docs about shutting it down...
答案1
得分: 1
嗯，这并非对我问题的确切回答，但无论如何：我决定start_http_server = Mock(return_value=None)，以便在单元测试中不启动。
英文:
Well, it's not exact answer to my question but anyway: I decided to start_http_server = Mock(return_value=None) so that it's not starting in unit-tests.
答案2
得分: 0
尝试使用wsgiref.simple_server.make_server运行Prometheus服务器。然后，你应该能够在服务器实例上调用.server_close()方法。
from prometheus_client import start_http_server
from wsgiref.simple_server import make_server
# 启动服务器
port = 8000
httpd = make_server('', port, start_http_server)
# 关闭服务器
httpd.server_close()
英文:
Try to run the prometheus server with wsgiref.simple_server.make_server instead.
Then you should be able to invoke .server_close() on the server instance.
from prometheus_client import start_http_server
from wsgiref.simple_server import make_server
# Start the server
port = 8000
httpd = make_server('', port, start_http_server)
# Stop the server
httpd.server_close()
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