52 lines
2 KiB
Python
Executable file
52 lines
2 KiB
Python
Executable file
#!/usr/bin/env python3
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import argparse
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import zulip
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from typing import Any, Dict, Text
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VERSION = "0.9"
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# Nagios passes the notification details as command line options.
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# In Nagios, "output" means "first line of output", and "long
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# output" means "other lines of output".
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parser = zulip.add_default_arguments(argparse.ArgumentParser()) # type: argparse.ArgumentParser
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parser.add_argument('--output', default='')
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parser.add_argument('--long-output', default='')
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parser.add_argument('--stream', default='nagios')
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parser.add_argument('--config', default='/etc/nagios3/zuliprc')
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for opt in ('type', 'host', 'service', 'state'):
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parser.add_argument('--' + opt)
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opts = parser.parse_args()
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client = zulip.Client(config_file=opts.config,
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client="ZulipNagios/" + VERSION) # type: zulip.Client
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msg = dict(type='stream', to=opts.stream) # type: Dict[str, Any]
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# Set a subject based on the host or service in question. This enables
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# threaded discussion of multiple concurrent issues, and provides useful
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# context when narrowed.
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#
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# We send PROBLEM and RECOVERY messages to the same subject.
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if opts.service is None:
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# Host notification
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thing = 'host' # type: Text
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msg['subject'] = 'host %s' % (opts.host,)
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else:
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# Service notification
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thing = 'service'
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msg['subject'] = 'service %s on %s' % (opts.service, opts.host)
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if len(msg['subject']) > 60:
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msg['subject'] = msg['subject'][0:57].rstrip() + "..."
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# e.g. **PROBLEM**: service is CRITICAL
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msg['content'] = '**%s**: %s is %s' % (opts.type, thing, opts.state)
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# The "long output" can contain newlines represented by "\n" escape sequences.
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# The Nagios mail command uses /usr/bin/printf "%b" to expand these.
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# We will be more conservative and handle just this one escape sequence.
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output = (opts.output + '\n' + opts.long_output.replace(r'\n', '\n')).strip() # type: Text
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if output:
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# Put any command output in a code block.
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msg['content'] += ('\n\n~~~~\n' + output + "\n~~~~\n")
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client.send_message(msg)
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