mackerel-cisco_snmp.py

#!/usr/bin/env python2

# mackerel-agent.conf:
# 
# [plugin.metrics.cisco]
# command = "/usr/bin/python /home/guestshell/mackerel-cisco_snmp.py 1 2 8 9 10 11 12 13 14"

import commands
from datetime import datetime
import sys
import json

import os
import pickle

target = "192.168.35.1"
snmp_opt = "-v2c -c public"
buffer_file = "/tmp/mackerel-agent/cisco"

if os.path.exists(buffer_file):
	with open(buffer_file, 'rb') as fp:
		buffer = pickle.load(fp)
else:
	buffer = {}

def fetchsnmp(oid):
        result = commands.getoutput(
		"snmpwalk -Ov %s %s %s | awk '{print $2}'" %
			(snmp_opt, target, oid)
	)
	return result

def printmetric(metric, oid, mode = 'delta'):
	value = fetchsnmp(oid)
	if 'Such' in value:
		return
	time = datetime.now().strftime('%s')
	if mode == 'delta':
		if metric in buffer:
			old_value = buffer[metric]['value']
			old_time = buffer[metric]['time']

			delta_value = int(value) - int(old_value)
			delta_time = int(time) - int(old_time)
			delta = '%.2f' % (float(delta_value) / delta_time)

			print("%s %s %s" % (metric, delta, time))

		buffer[metric] = {}
		buffer[metric]['value'] = value
		buffer[metric]['time'] = time
	else:
		print("%s %s %s" % (metric, value, time))

def getmeta():
	define = {
		"graphs": {
			"cisco.cpu": {
				"label": "IOS-XE - CPU Busy Percentage",
				"unit": "percentage",
				"metrics": [
					{
						"name": "5sec",
						"label": "5 Sec"
					},
					{
						"name": "1min",
						"label": "1 Min"
					},
					{
						"name": "5min",
						"label": "5 Min"
					}
				]
			},
			"cisco.memory": {
				"label": "IOS-XE - Memory",
				"unit": "bytes",
				"metrics": [
					{
						"name": "used",
						"label": "Used"
					},
					{
						"name": "free",
						"label": "Free"
					}
				]
			},
			"cisco.interface.bandwidthbps.#": {
				"label": " IOS-XE - Interface :: Bandwidth (bps)",
				"unit": "bytes/sec",
				"metrics": [
					{
						"name": "*",
						"label": "%1"
					}
				]
			},
			"cisco.interface.unicast.#": {
				"label": "IOS-XE - Interface :: Unicast (pps)",
				"unit": "float",
				"metrics": [
					{
						"name": "*",
						"label": "%1",
						"isStacked": True
					}
				]
			},
			"cisco.interface.broadcast.#": {
				"label": "IOS-XE - Interface :: Broadcast (pps)",
				"unit": "float",
				"metrics": [
					{
						"name": "*",
						"label": "%1",
						"isStacked": True
					}
				]
			},
			"cisco.interface.multicast.#": {
				"label": "IOS-XE - Interface :: Multicast (pps)",
				"unit": "float",
				"metrics": [
					{
						"name": "*",
						"label": "%1",
						"isStacked": True
					}
				]
			},
			"cisco.interface.discarded.#": {
				"label": "IOS-XE - Interface :: Discarded (pps)",
				"unit": "float",
				"metrics": [
					{
						"name": "*",
						"label": "%1",
						"isStacked": True
					}
				]
			},
			"cisco.interface.error.#": {
				"label": "IOS-XE - Interface :: Error (pps)",
				"unit": "float",
				"metrics": [
					{
						"name": "*",
						"label": "%1",
						"isStacked": True
					}
				]
			}
    		}
  	}

	meta = "# mackerel-agent-plugin\n"
	meta += json.dumps(define)

	return meta

def main(argv):
	printmetric("cisco.cpu.5sec", ".1.3.6.1.4.1.9.9.109.1.1.1.1.3.7", None)
	printmetric("cisco.cpu.1min", ".1.3.6.1.4.1.9.9.109.1.1.1.1.4.7", None)
	printmetric("cisco.cpu.5min", ".1.3.6.1.4.1.9.9.109.1.1.1.1.5.7", None)
	printmetric("cisco.memory.used", ".1.3.6.1.4.1.9.9.48.1.1.1.5.1", None)
	printmetric("cisco.memory.free", ".1.3.6.1.4.1.9.9.48.1.1.1.6.1", None)
	for i in argv[1:]:
		name = fetchsnmp(".1.3.6.1.2.1.2.2.1.2.%s" % i).replace('.', '-').replace('/', '-')

		printmetric("cisco.interface.bandwidthbps.%s.in" % name, ".1.3.6.1.2.1.31.1.1.1.6.%s" % i)
		printmetric("cisco.interface.bandwidthbps.%s.out" % name, ".1.3.6.1.2.1.31.1.1.1.10.%s" % i)
		printmetric("cisco.interface.unicast.%s.in" % name, ".1.3.6.1.2.1.31.1.1.1.7.%s" % i)
		printmetric("cisco.interface.multicast.%s.in" % name, ".1.3.6.1.2.1.31.1.1.1.8.%s" % i)
		printmetric("cisco.interface.broadcast.%s.in" % name, ".1.3.6.1.2.1.31.1.1.1.9.%s" % i)
		printmetric("cisco.interface.unicast.%s.out" % name, ".1.3.6.1.2.1.31.1.1.1.11.%s" % i)
		printmetric("cisco.interface.multicast.%s.out" % name, ".1.3.6.1.2.1.31.1.1.1.12.%s" % i)
		printmetric("cisco.interface.broadcast.%s.out" % name, ".1.3.6.1.2.1.31.1.1.1.13.%s" % i)
		printmetric("cisco.interface.discarded.%s.in" % name, ".1.3.6.1.2.1.2.2.1.13.%s" % i)
		printmetric("cisco.interface.discarded.%s.in-UnknownProtos" % name, ".1.3.6.1.2.1.2.2.1.15.%s" % i)
		printmetric("cisco.interface.discarded.%s.out" % name, ".1.3.6.1.2.1.2.2.1.19.%s" % i)
		printmetric("cisco.interface.error.%s.in" % name, ".1.3.6.1.2.1.2.2.1.14.%s" % i)
		printmetric("cisco.interface.error.%s.out" % name, ".1.3.6.1.2.1.2.2.1.20.%s" % i)


if __name__ == "__main__":
	if os.environ.get('MACKEREL_AGENT_PLUGIN_META', '')  == '1':
		print(getmeta())
		sys.exit(0)
	main(sys.argv)

	with open(buffer_file, 'wb') as fp:
		pickle.dump(buffer, fp)