stack-light-alerts/alert-api.py
2019-12-19 00:55:15 +01:00

121 lines
2.8 KiB
Python

import RPi.GPIO as GPIO
from collections import Counter, defaultdict
from alertmanager import Alertmanager
import time, json
GPIO.setmode(GPIO.BCM) # set board mode to Broadcom
GPIO.setwarnings(False) # don't show warnings
al = Alertmanager("http://prometheus.lan.uctrl.net:9093")
colors = {
'red': {
'io': 24,
'steady': True,
'prev': 0
},
'orange': {
'io': 4,
'steady': True,
'prev': 0
},
'green': {
'io': 3,
'steady': False,
'prev': 0
},
'blue': {
'io': 2,
'steady': True,
'prev': 0
},
'clear': {
'io': 17,
'steady': False,
'prev': 0
}
}
severities = {
'alert': 'red',
'warn': 'orange',
'info': 'white'
}
boot_seq = ['clear', 'blue', 'green', 'orange', 'red']
for c, v in colors.items():
GPIO.setup(v['io'], GPIO.OUT)
GPIO.output(v['io'], False)
def setColor(color, state):
io = colors[color]['io']
if GPIO.input(io) is not int(state):
print('Setting color', color.upper(), str(state))
GPIO.output(io, state)
def bootSequence():
for color in boot_seq:
setColor(color, True)
time.sleep(0.2)
setColor(color, False)
time.sleep(1)
bootSequence()
time.sleep(1)
while True:
d = defaultdict(list)
start = time.time()
for alert in al.alerts():
if 'color' in alert["labels"]:
c = alert["labels"]["color"]
elif 'severity' in alert["labels"]:
c = severities[alert["labels"]["severity"]]
else:
continue
d[c].append(alert["status"]["state"])
for c in colors:
print(c, json.dumps(Counter(d[c]), indent=4, sort_keys=True))
for x in range(0, 10):
for c, v in colors.items():
if (Counter(d[c])['active'] > 0 and v['steady']) \
or (Counter(d[c])['active'] > v['prev'] and not v['steady']):
setColor(c, True)
time.sleep(.5)
# Turn color off if active alerts have increased, causing color to flash
for c, v in colors.items():
if Counter(d[c])['active'] > v['prev']:
setColor(c, False)
time.sleep(.5)
# Turn green off, if on. It should only be on for one cycle
setColor('green', False)
for c, v in colors.items():
if c == 'green':
continue
if Counter(d[c])['active'] == 0:
setColor(c, False)
# Use green to indicate decrease in active alerts
if v['prev'] > Counter(d[c])['active'] and v['steady']:
setColor('green', True)
colors[c]['prev'] = Counter(d[c])['active']
print(time.time() - start)
print('---')