133 lines
4.4 KiB
Python
Executable file
133 lines
4.4 KiB
Python
Executable file
#!/usr/bin/python3
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#
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# A script to read the Nagios status file and send email for notifications
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# off, but have recovered.
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#
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# Written by Athmane Madjoudj <athmane@fedoraproject.org>, 2011-11-15
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# based on tummy.com's work <jafo@tummy.com>, 2010-11-16
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# Minimally ported to Python 3 by Adam Williamson <adamwill@fedoraproject.org>, 2023-08-14
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# Released under the GPLv2.
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import re
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from smtplib import SMTP
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from email.mime.text import MIMEText
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from socket import gethostname
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# Settings
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debug = 0
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EMAIL_FROM = "nagios@fedoraproject.org"
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EMAIL_TO = "sysadmin-noc-members@fedoraproject.org"
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# EMAIL_TO="athmane@fedoraproject.org"
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nagios_status_file = "/var/spool/nagios/status.dat"
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class NagiosStatus:
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def __init__(self, filename):
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self.filename = filename
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self.hosts = {}
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self.load_status_file()
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def load_status_file(self):
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fp = open(self.filename, "r")
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while True:
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line = fp.readline()
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if not line:
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break
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m = re.match(r"^hoststatus\s+{\s*$", line)
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if m:
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if debug >= 2:
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print("START OF HOST")
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data = {"services": []}
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while True:
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line = fp.readline()
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if not line:
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break
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if debug >= 2:
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print("host: %s" % line.rstrip())
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m2 = re.match(r"^\s+([^=]+)=(\S.*)*$", line.rstrip())
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if not m2:
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break
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data[m2.group(1)] = m2.group(2)
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self.hosts[data["host_name"]] = data
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if debug >= 2:
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print("END OF HOST")
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m = re.match(r"^servicestatus\s+{\s*$", line)
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if m:
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if debug >= 2:
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print("START OF SERVICE")
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data = {}
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while True:
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line = fp.readline()
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if not line:
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break
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if debug >= 2:
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print("service: %s" % line.rstrip())
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m2 = re.match(r"^\s+([^=]+)=(.*)$", line.rstrip())
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if not m2:
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break
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data[m2.group(1)] = m2.group(2)
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self.hosts[data["host_name"]]["services"].append(data)
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if debug >= 2:
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print("END OF SERVICE")
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def main():
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status = NagiosStatus(nagios_status_file)
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output = ""
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for host in sorted(status.hosts.keys()):
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host = status.hosts[host]
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if host.get("notifications_enabled", None) == None:
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output += "Host %s has no notifications_enabled line \n" % host["host_name"]
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continue
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# are there any hard states that aren't 0 or 1?
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hard_states = [
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x
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for x in [int(x["last_hard_state"]) for x in host["services"]]
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if x not in [0, 1]
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]
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need_newline = False
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if host["notifications_enabled"] == "0" and not hard_states:
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output += (
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"Host %s has notifications disabled and all services ok \n"
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% host["host_name"]
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)
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need_newline = True
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for service in host["services"]:
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if debug:
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print("%s@%s" % (service["check_command"], host["host_name"]))
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print(
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" notifications_enabled: %(notifications_enabled)s last_hard_state: %(last_hard_state)s"
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% service
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)
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if int(service["notifications_enabled"]) == 0 and int(
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service["last_hard_state"]
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) in [0, 1]:
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output += (
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"Service %(check_command)s@%(host_name)s\n"
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" has notifications disabled, but is ok\n"
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) % service
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need_newline = True
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if need_newline:
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output += "\n\n"
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if output.strip() != "":
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msg_body = (
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"List of notifications off for recovered hosts/services: \n\n" + output
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)
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msg = MIMEText(msg_body)
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msg["Subject"] = "Notifications status on %s" % gethostname()
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msg["From"] = EMAIL_FROM
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msg["To"] = EMAIL_TO
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smtp_conn = SMTP()
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smtp_conn.connect("localhost")
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smtp_conn.sendmail(EMAIL_FROM, EMAIL_TO, msg.as_string())
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smtp_conn.quit()
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if __name__ == "__main__":
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main()
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