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#!/usr/bin/python
# -*- coding: utf8 -*-
import sys,json
""" TODO: Refactoring needed to pull the edges out of the node structures again,
it should be easier to handle both structures"""
DUMP_FILE = "/krebs/db/availability"
def get_all_nodes():
import os
return os.listdir("/etc/tinc/retiolum/hosts")
def generate_stats():
""" Generates some statistics of the network and nodes
"""
import json
jlines = []
try:
f = open(DUMP_FILE,'r')
for line in f:
jlines.append(json.loads(line))
f.close()
except Exception,e:
pass
all_nodes = {}
for k in get_all_nodes():
all_nodes[k] = get_node_availability(k,jlines)
print ( json.dumps(all_nodes))
def get_node_availability(name,jlines):
""" calculates the node availability by reading the generated dump file
adding together the uptime of the node and returning the time
parms:
name - node name
jlines - list of already parsed dictionaries node archive
"""
begin = last = current = 0
uptime = 0
#sys.stderr.write ( "Getting Node availability of %s\n" % name)
for stat in jlines:
if not stat['nodes']:
continue
ts = stat['timestamp']
if not begin:
begin = last = ts
current = ts
if stat['nodes'].get(name,{}).get('to',[]):
uptime += current - last
else:
pass
#sys.stderr.write("%s offline at timestamp %f\n" %(name,current))
last = ts
all_the_time = last - begin
try:
return uptime/ all_the_time
except:
return 1
generate_stats()
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