Munin contributed plugins

#!/usr/bin/env python

import os

import json

import urllib

import urllib2

from munin import MuninPlugin

class HookboxPlugin(MuninPlugin):

    title = 'hookbox'

    args = "--base 1000"

    vlabel = "Y"

    info = "Subscibed users"

    scale = False

    def get_channels(self):

        return os.environ.get('HOOKBOX_CHANNELS', '').split(',')

    def get_url(self):

        return os.environ.get('HOOKBOX_URL', 'http://localhost:8001/rest')

    def get_secret(self):

        return os.environ.get('HOOKBOX_SECRET', '')

    @property

    def fields(self):

        return (

            (channel, dict(

                label=channel,

                info="%s - users" % channel,

                type="GAUGE",

            ))

            for channel in self.get_channels()

        )

    def get_channel_info(self, channel_name):

        values = {

            'channel_name': channel_name,

            'secret': self.get_secret(),

        }

        req = urllib2.Request("%s/get_channel_info?%s" % (self.get_url(), urllib.urlencode(values)))

        resp = urllib2.urlopen(req)

        return json.loads(resp.read())

    def get_subscribers(self, channel_name):

        try:

            return len(self.get_channel_info(channel_name)[1]['subscribers'])

        except (urllib2.URLError, KeyError), e:

            return 'U'

    def execute(self):

        return dict(

            (channel_name, self.get_subscribers(channel_name))

            for channel_name in self.get_channels()

        )

if __name__ == "__main__":

    HookboxPlugin().run()