Added new plugin to monitor lighttpd web server

plugins/lighttpd/lighttpd_

@@ -0,0 +1,109 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# vim: set fileencoding=utf-8
+#
+# Munin plugin to monitor lighttpd web-server.
+#
+# Copyright Igor Borodikhin
+#
+# License : GPLv3
+#
+# Configuration parameters:
+# env.status_url - url of lighty's server-status (optional, default is http://127.0.0.1/server-status)
+# env.username - username to provide if status_url requires basic authentication (optional, default - no authentication)
+# env.password - password to provide if status_url requires basic authentication (optional, default - no authentication)
+#
+# Note: If basic HTTP authentication is required you should specify both username and password.
+#
+# ## Installation
+# Copy file to directory /usr/share/munin/pligins/
+# Because this plugin has suggest capability the last step is to run
+#     # munin-node-configure --suggest --shell | sh -x
+#
+#%# family=contrib
+#%# capabilities=autoconf suggest
+
+import os, sys, urllib2, base64
+
+program = sys.argv[0]
+graph_type = program[program.rfind("_")+1:]
+graph_types = {
+    "accesses" : [
+        {
+            "title" : "Total accesses",
+            "type" : "COUNTER",
+            "args" : "--base 1000 -l 0",
+            "fields" : ["accesses"]
+        }
+    ],
+    "kbytes" : [
+        {
+            "title" : "Total kBytes",
+            "type" : "COUNTER",
+            "args" : "--base 1024 -l 0",
+            "fields" : ["kbytes"]
+        }
+    ],
+    "uptime" : [
+        {
+            "title" : "Uptime",
+            "type" : "GAUGE",
+            "args" : "--base 1000 -l 0",
+            "fields" : ["uptime"]
+        }
+    ],
+    "status" : [
+        {
+            "title" : "Status",
+            "type" : "GAUGE",
+            "args" : "--base 1000 -l 0",
+            "fields" : ["busy", "idle"]
+        }
+    ]
+}
+
+if len(sys.argv) == 2 and sys.argv[1] == "autoconf":
+    print "yes"
+elif len(sys.argv) == 2 and sys.argv[1] == "config":
+    if graph_type not in graph_types.keys():
+        raise Exception("Unknown graph type '%s'"%graph_type)
+    params = graph_types[graph_type]
+    for item in params:
+        print "graph_title %s" % item["title"]
+        print "graph_category lighttpd"
+        for field in item["fields"]:
+            print "%s.label %s" % (field, field)
+            print "%s.type %s" % (field, item["type"])
+        print "graph_args %s" % item["args"]
+elif len(sys.argv) == 2 and sys.argv[1] == "suggest":
+    for item in graph_types.keys():
+        print item
+else:
+    if "status-url" not in os.environ:
+        status_url = "http://127.0.0.1/server-status"
+    else:
+        status_url = os.environ["status_url"]
+
+    request = urllib2.Request("%s?auto" % status_url)
+    if "username" in os.environ and "password" in os.environ:
+        base64str = base64.encodestring("%s:%s" % (os.environ["username"], os.environ["password"])).replace("\r", "")
+        request.add_header("Authorization", "Basic %s" % base64str)
+    info = urllib2.urlopen(request).read()
+    data = {}
+    lines = info.split("\n")
+    for line in lines:
+        try:
+           (title, value) = line.split(": ")
+           data[title] = value
+        except Exception:
+           pass
+
+    if graph_type == "accesses":
+        print "accesses.value %s" % data["Total Accesses"]
+    elif graph_type == "kbytes":
+        print "kbytes.value %s" % data["Total kBytes"]
+    elif graph_type == "uptime":
+        print "uptime.value %s" % str(float(data["Uptime"])/86400)
+    elif graph_type == "status":
+        print "busy.value %s" % data["BusyServers"]
+        print "idle.value %s" % data["IdleServers"]