我正在尝试创建一个自定义 python 2 nagios 脚本,以便能够监控单个起搏器资源。当它从文件中读取输入时,我设法让它工作,但是当从 cli 收集输入时,我无法让它工作。
所以像这样它可以工作:
from __future__ import print_function
from bs4 import BeautifulSoup
import os,sys
with open ("/tmp/crm_output.txt","r") as f:
#with os.popen ("/usr/sbin/crm_mon -r -X") as f:
contents = f.read()
soup = BeautifulSoup(contents, 'lxml')
resource_status = soup.find("resource").attrs["role"]
resource_name = soup.find("resource").attrs["id"]
if resource_status == "Started":
print("The status of " +resource_name + " is " + resource_status)
sys.exit(0)
elif resource_status == "Stopped" or resource_status == "Stopped (disabled)":
print("The status of " +resource_name + " is " + resource_status)
sys.exit(1)
elif resource_status == "Failed":
print("The status of " +resource_name + " is " + resource_status)
sys.exit(2)
else:
print("The status of " +resource_name + " is " + "UNKNOWN")
sys.exit(3)
但如果我取消注释这一行:
with os.popen ("/usr/sbin/crm_mon -r -X") as f:
让它从 cli 读取输入,它给了我 NRPE:unable to read output
有趣的是,当我在目标服务器中本地运行脚本时,它总是给我正确的输出。像这样:
[root@lb-01 tmp]# /usr/lib64/nagios/plugins/check_pacemaker.py
The status of api-lb-ip is Started
我怀疑我读取命令输出的方式有问题,但无法弄清楚。有什么建议可以在哪里寻找更多详细信息?