kamailio uac module state checker for nagios or check_mk

check_uac.py

#!/bin/env python3
import sys
import shlex
import json
from subprocess import Popen
from subprocess import PIPE

get_pid = shlex.split("pgrep -c [k]amailio")
uac_cmd = shlex.split("/usr/sbin/kamctl rpc uac.reg_dump")
check_name = "uac_reg_"


def getProcessOutput(cmd):
    p1 = Popen(cmd, stdout=PIPE)
    p1.wait()
    data, err = p1.communicate()
    if p1.returncode is 0:
        return data.decode("utf-8")
    else:
        return err


def print_checkmk(msg, exit=0, check_name=check_name):
    print("{0} {1} - {2}".format(exit, check_name, msg))


if not getProcessOutput(get_pid):
    sys.exit(0)
try:
    input_json = getProcessOutput(uac_cmd)
    input_dict = json.loads(input_json)
except:
    sys.exit(1)

if "result" not in input_dict:
    sys.exit(0)

okay = 0
warning = 1
crit = 2
unknown = 3

for dic in input_dict["result"]:
    check = check_name + dic["l_uuid"]

    if dic["flags"] == 1:
        message = "l_uuid: {l_uuid} register flag: {flags} Status: ADMIN DISABLED".format(
            **dic
        )
        print_checkmk(check_name=check, msg=message, exit=okay)

    elif dic["flags"] == 2:
        message = "l_uuid: {l_uuid} register flag: {flags} Status: IN PROGRESS".format(
            **dic
        )
        print_checkmk(check_name=check, msg=message, exit=warning)

    elif dic["flags"] == 16:
        message = "l_uuid: {l_uuid} register flag: {flags} Status: INITIALIZE".format(
            **dic
        )
        print_checkmk(check_name=check, msg=message, exit=crit)

    elif dic["flags"] == 20:
        message = "l_uuid: {l_uuid} register flag: {flags} Status: OK Re-Register in: {diff_expires} sec".format(
            **dic
        )
        print_checkmk(check_name=check, msg=message, exit=okay)

    else:
        message = "l_uuid: {l_uuid} register flag: {flags} Status: UNKNOWN".format(**dic)
        print_checkmk(check_name=check, msg=message, exit=crit)