How to Build a Simple Python Service Health Check Script

This article demonstrates a straightforward Python script for checking the health of a service via its /actuator/health endpoint.

import json
import sys
import requests

ip = sys.argv[1]
port = sys.argv[2]
service_name = sys.argv[3]

# Target URL
url = "http://" + ip + ":" + port + "/actuator/health"
print(url)
response = requests.get(url)
print(response.text)

data = json.loads(response.text)
health_status = data["status"]
if health_status != "UP":
    # Raise a generic ValueError exception
    raise ValueError("发布异常")
else:
    print("服务:{} ip:{} 发布成功".format(service_name, ip))

The script reads the IP address, port, and service name from command‑line arguments, builds the health‑check URL, prints it, performs a GET request, prints the raw response, parses the JSON to obtain the status field, and either raises an exception when the status is not UP or prints a success message.