ClusterMonitor.py

#!/usr/bin/env python
import os
import time
from blinkt import set_brightness, set_pixel, show, clear
 
# clear the LEDs
set_brightness(0.1)
clear()
show()
 
# dictionary data format is - "IP", "description", status where 0 = up and 1 = down
pingdict = {0:["8.8.8.8","Google DNS ",1],
    1:["192.168.1.1","ISP router",1],
    2:["192.168.1.10","storage",1],
    3:["192.168.1.13","esx1",1],
    4:["192.168.1.22","esx2",1],
    5:["192.168.1.31","pi-hole",1],
    6:["192.168.1.121","splunk",1],
    7:["192.168.1.200","serv1",1]}
 
while True:
    for x in range(8):
        # change the colour slightly whilst we are testing an IP address
        if pingdict[x][2]==0:
            set_pixel(x, 0, 150, 0)
        else:
            set_pixel(x, 255, 0, 0)
 
        show()
        # ping the IP address 
        response = os.system("ping -c 1 -W 2 " + pingdict[x][0]+ " >nul")
        if response == 0:
            set_pixel(x, 0, 100, 0)
            print x, ' is up - ', pingdict[x][1]
            pingdict[x][2]=0
        else:
            set_pixel(x, 150, 0, 0)
            print x, ' is down - ', pingdict[x][1]
            pingdict[x][2]=1
        show()
 
      # pause for a few seconds then loop again
      time.sleep(2)