Munin contributed plugins

#!/usr/bin/env python

'''

Plugin to monitor performance of eaccelerator module for PHP.

To use:

1. Copy script to munin plugins folder

2. Symbolically link to eacc_memory and eacc_cached

   * eacc_memory shows memory usage

   * eacc_cached shows number of scripts cached and discarded

3. Set configuration options in munin config file as follows

[eacc_*]

env.auth_user username

env.auth_pwd password

env_cpanel url_of_stats.php

4. Copy stats.php into the eacc control panel folder and set $user/$pw to match auth_user/auth_pwd

   * Ideally, these should be the same values as set in control.php

5. Run `munin-run eacc_memory` and `munin-run eacc_cached` to make sure scripts are running correctly, you should see non-zero values

6. Restart munin-node

This script's homepage: https://github.com/hermzz/munin-eaccelerator-plugin

eAccelerator homepage: http://eaccelerator.net/

'''

import sys, os

command_vars = {

    'memory': ['memorysize', 'memoryallocated'],

    'cached': ['cachedscripts', 'removedscripts']

}

config = {

    'memory':

            'graph_title eacceleratory memory usage\n' +

            'graph_info This graph shows memory performance of PHP eaccelerator module\n' +

            'graphs_args -1 0\n' +

            'graph_category webserver\n' +

            'memorysize.label total\n' +

            'memorysize.draw AREA\n' +

            'memorysize.min 0\n' +

            'memorysize.info Total memory\n' +

            'memoryallocated.label allocated\n' +

            'memoryallocated.draw LINE1\n' +

            'memoryallocated.min 0\n' +

            'memoryallocated.info Memory allocated',

    'cached':

            'graph_title eacceleratory cached scripts\n' +

            'graph_info This graph shows how many scripts are cached by PHP eaccelerator module\n' +

            'graphs_args -1 0\n' +

            'graph_category webserver\n' +

            'cachedscripts.label cached scripts\n' +

            'cachedscripts.draw LINE1\n' +

            'cachedscripts.min 0\n' +

            'cachedscripts.info Cached scripts\n' +

            'removedscripts.label removed scripts\n' +

            'removedscripts.draw LINE1\n' +

            'removedscripts.min 0\n' +

            'removedscripts.info Removed scripts'

}

def print_config(command):

    print config[command]

def get_stats():

    fetcher = httplib2.Http()

    if 'auth_user' in os.environ and 'auth_pwd' in os.environ:

        fetcher.add_credentials(os.environ['auth_user'], os.environ['auth_pwd'])

    resp, content = fetcher.request(os.environ["cpanel"])

    if resp['status'] != '200':

        content = '0 0 0 0'

    bits = content.split(' ')

    return {'memorysize': bits[0], 'memoryallocated': bits[1], 'cachedscripts': bits[2], 'removedscripts': bits[3]}

def print_stats(command):

	stats = get_stats()

	for var in command_vars[command]:

	    print "%s.value %s" % (var, stats[var])

if __name__ == "__main__":

    try:

        import httplib2

    except ImportError:

        print "httplib2 not found"

        sys.exit(1)

    if os.environ['cpanel'] == '':

        print "env.cpanel not defined in munin config"

        sys.exit()

    underscore = sys.argv[0].find('_')

    if underscore == -1:

        print "Symbolically link this file to eacc_memory or eacc_cached"

        sys.exit(1)

    else:

        command = sys.argv[0][underscore+1:]

        if len(sys.argv) > 1 and sys.argv[1] != '':

            if sys.argv[1] == 'config':

                print_config(command)

            else:

                print "Command %s not recognized" % sys.argv[1]

                sys.exit(1)

        else:

            print_stats(command)