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berrymon.py
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berrymon.py
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#!/usr/bin/env python3
# Copyright (c) 2018 by Advay Mengle - https://github.com/madvay/berrymon
#
# WARNING: You are responsible for following all relevant safety
# precautions and using your device responsibly. You must independently
# assess whether any advice or recommendations contained in this
# software (including all documentation) is suitable and safe for you and
# your device. Do not rely on temperature or other measurements from this
# software to ensure safety - measurements may be out of date or wrong.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this software except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys
assert sys.version_info >= (3,5)
import copy
import subprocess
import urllib.parse
import time
import datetime
import platform
import threading
from datetime import datetime
from threading import Thread
from time import sleep
import urllib.request
import os
import re
import logging
from logging.handlers import TimedRotatingFileHandler
import signal
import argparse
import psutil
min_temp = 40
max_temp = 80
min_freq = 600000000
max_freq = 1400000000
sense = None
BRIGHTNESS = 64
FULLB = BRIGHTNESS
C_BLACK = (0,0,0)
C_DIM = (int(FULLB*3/4),int(FULLB*3/4),int(FULLB*3/4))
C_RED = (FULLB,0,0)
C_GREEN = (0,FULLB,0)
C_BLUE = (0,0,FULLB)
C_YELLOW = (FULLB,FULLB,0)
C_PURPLE = (FULLB,0,FULLB)
C_CYAN = (0,FULLB,FULLB)
C_WHITE = (FULLB,FULLB,FULLB)
def top_exception(exc_type, exc_value, exc_traceback):
try:
if sense:
sense.clear(C_RED)
sense.set_pixel(3,3,C_YELLOW)
sense.set_pixel(3,4,C_GREEN)
sense.set_pixel(4,3,C_BLUE)
sense.set_pixel(4,4,C_PURPLE)
except:
print('Ignoring exception on display of error LEDs')
sys.__excepthook__(exc_type, exc_value, exc_traceback)
return
sys.excepthook = top_exception
parser = argparse.ArgumentParser(description="""Monitor Logger
- Monitors various properties of the system, logs them, displays them
on a Sense HAT board, and advertises them as a server (see options).
""",
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
epilog="""Copyright (c) 2018 Advay Mengle and others - see the LICENSE and NOTICE files included with this software.
WARNING: You are responsible for following all relevant safety
precautions and using your device responsibly. You must independently
assess whether any advice or recommendations contained in this
software (including all documentation) is suitable and safe for you and
your device.
Do not rely on temperature or other measurements from this software
to ensure safety - measurements may be out of date or wrong.
""")
parser.add_argument("-s", "--sensehat",
help="enables the Sense HAT LEDs, optionally",
action="store_true")
parser.add_argument("--sensehat_required",
help="fails if the Sense HAT LED cannot be loaded (requires --sensehat also)",
action="store_true")
parser.add_argument("-i", "--ifttt",
help="posts metrics to IFTTT using the key stored in env var IFTTT_TOKEN",
action="store_true")
parser.add_argument("--ifttt_period", help="send an IFTTT post every N executions", type=int, default=1)
parser.add_argument("-p", "--period", type=float, default=1,
help="seconds to sleep between monitoring")
parser.add_argument("--min_temp", type=float, default=min_temp, help="Min bar graph temperature")
parser.add_argument("--max_temp", type=float, default=max_temp, help="Max bar graph temperature")
parser.add_argument("--min_freq", type=int, default=min_freq, help="Min bar graph frequency")
parser.add_argument("--max_freq", type=int, default=max_freq, help="Max bar graph frequency")
parser.add_argument("--led_rotation", help="rotation of the Sense HAT LEDs (90deg increments)",
type=int, default=0)
parser.add_argument("--power_management",
help="allows joystick power control (middle=sudo shutdown, others=sudo reboot)",
action="store_true")
parser.add_argument("--log", help="path to log to", type=str, default=None)
parser.add_argument("--log_days", help="days of logs to keep", type=int, default=7)
parser.add_argument("--log_period", help="print/log every N executions", type=int, default=1)
parser.add_argument("--server", help="run a webserver with monitoring on this IP", type=str, default=None)
parser.add_argument("--server_port", help="webserver port", type=int, default=8080)
parser.add_argument("--server_controls", help="permit unauthenticated INSECURE access to server controls over http", action='store_true')
# Sets up our logs, and redirects stdout/err to those logs
def setup_logs(path, days):
logger = logging.getLogger(__name__)
handler = TimedRotatingFileHandler(path, when='midnight', backupCount=days)
formatter = logging.Formatter('%(asctime)s [%(levelname)-10s] <%(name)s> %(message)s')
handler.setFormatter(formatter)
logger.addHandler(handler)
logger.setLevel(logging.INFO)
class LoggerStream:
def __init__(self, logger, level):
self.logger = logger
self.level = level
def write(self, msg):
# skip the garbage
if msg != '\n':
self.logger.log(self.level, msg)
def flush(self):
# can't force a flush of the logger
return
sys.stderr = LoggerStream(logger, logging.ERROR)
sys.stdout = LoggerStream(logger, logging.INFO)
return logger
args = parser.parse_args()
if args.log:
setup_logs(args.log, args.log_days)
min_temp = args.min_temp
max_temp = args.max_temp
min_freq = args.min_freq
max_freq = args.max_freq
MIL = 1000000
last_blink = 0
sense = None
if args.sensehat:
print('Attempting to load Sense HAT')
try:
from sense_hat import SenseHat
sense = SenseHat()
sense.clear(C_BLACK)
sleep(0.25)
sense.clear(C_RED)
sleep(0.25)
sense.clear(C_GREEN)
sleep(0.25)
sense.clear(C_BLUE)
sleep(0.25)
sense.clear(C_WHITE)
sleep(0.25)
sense.clear(C_BLACK)
sense.set_rotation(args.led_rotation)
sense.low_light = True
except:
print("Failed to load Sense HAT")
if args.sensehat_required:
raise
sense = None
def control_shutdown():
if sense:
sense.clear(C_BLUE)
sleep(0.5)
sense.clear(C_WHITE)
sleep(0.5)
os.system('sudo shutdown -h now')
def control_reboot():
if sense:
sense.clear(C_RED)
sleep(0.5)
sense.clear(C_GREEN)
sleep(0.5)
os.system('sudo reboot')
if sense:
if args.power_management:
# Define the functions
def btn_shutdown():
print('Shutting down system due to button press')
control_shutdown()
def btn_reboot():
print('Rebooting system due to button press')
control_reboot()
sense.stick.direction_up = btn_reboot
sense.stick.direction_down = btn_reboot
sense.stick.direction_left = btn_reboot
sense.stick.direction_right = btn_reboot
sense.stick.direction_middle = btn_shutdown
def vcgencmd(args):
v = ["/opt/vc/bin/vcgencmd"]
v.extend(args)
proc = subprocess.run(v, stdout=subprocess.PIPE, universal_newlines=True)
return proc.stdout
def vcgencmd_clean(args):
return vcgencmd(args).strip()
def vcgencmd_parsed(args,meatre):
r = vcgencmd_clean(args)
m = re.fullmatch(meatre, r)
if m is None:
return None
return m.group('val')
def temperature():
return vcgencmd_parsed(['measure_temp'], 'temp=(?P<val>[.0-9]+).+')
def clock_freq(name):
return vcgencmd_parsed(['measure_clock', name], '[^=]+=(?P<val>[.0-9]+)')
def throttle_state():
h = vcgencmd_parsed(['get_throttled'], '[^=]+=0x(?P<val>.+)')
v = int(h, 16)
ret = ''
# lower-case letters indicate past-tense;
# upper-case are current states.
# cpu throttling
if v & (1 << 18):
ret = ret + 't'
else:
ret = ret + '-'
# frequency capping
if v & (1 << 17):
ret = ret + 'c'
else:
ret = ret + '-'
# under-voltage
if v & (1 << 16):
ret = ret + 'u'
else:
ret = ret + '-'
# cpu throttling
if v & (1 << 2):
ret = ret + 'T'
else:
ret = ret + '-'
# frequency capping
if v & (1 << 1):
ret = ret + 'C'
else:
ret = ret + '-'
# under-voltage
if v & (1 << 0):
ret = ret + 'U'
else:
ret = ret + '-'
return ret
def ifttt_report(v1, v2, v3):
if not (args.ifttt and 'IFTTT_TOKEN' in os.environ):
return
def ifttt_report_impl():
url = 'https://maker.ifttt.com/trigger/berry_metrics/with/key/' + os.environ['IFTTT_TOKEN']
values = {'value1' : v1,
'value2' : v2,
'value3' : v3 }
form = urllib.parse.urlencode(values)
data = form.encode('utf-8')
req = urllib.request.Request(url, data)
with urllib.request.urlopen(req) as resp:
_ = resp.read()
t = Thread(target=ifttt_report_impl, args=())
t.start()
def drawbar(val, vmin, vmax, x, color):
lin = (val - vmin) / (vmax - vmin)
mlin = int(max(0,min(8,round(lin * 8,0))))
for y in range(0, 8):
if y < mlin:
sense.set_pixel(x,y,color)
else:
sense.set_pixel(x,y,C_BLACK)
if mlin == 0:
sense.set_pixel(x,0,C_RED)
def display(temp, freq, state):
global last_blink
if not sense:
return
def display_impl(blink):
if blink:
sense.set_pixel(0,0,C_DIM)
sense.set_pixel(0,1,C_BLACK)
else:
sense.set_pixel(0,0,C_BLACK)
sense.set_pixel(0,1,C_DIM)
drawbar(temp, min_temp, max_temp, 2, C_GREEN)
drawbar(freq, min_freq, max_freq, 4, C_BLUE)
sense.set_pixel(7,0,C_RED if ('U' in state) else C_BLACK)
sense.set_pixel(7,1,C_GREEN if ('C' in state) else C_BLACK)
sense.set_pixel(7,2,C_BLUE if ('T' in state) else C_BLACK)
sense.set_pixel(7,5,C_RED if ('u' in state) else C_BLACK)
sense.set_pixel(7,6,C_GREEN if ('c' in state) else C_BLACK)
sense.set_pixel(7,7,C_BLUE if ('t' in state) else C_BLACK)
#t = Thread(target=display_impl, args=(last_blink < 1,))
#t.start()
display_impl(last_blink<1)
last_blink = 1 - last_blink
printon = 0
ifttton = 0
data = {
'~name': platform.node(),
'~machine': platform.machine(),
'~dist': platform.dist(),
'~release': platform.release(),
'~system': platform.system(),
'~version': platform.version(),
'_now': 0
}
def update():
global printon, ifttton, data, last
data2 = copy.deepcopy(data)
data2['temp'] = float(temperature())
data2['freq'] = int(clock_freq('arm'))
data2['state'] = throttle_state()
data2['load'] = psutil.cpu_percent(percpu=True)
data2['mem'] = psutil.virtual_memory().percent
data2['uptime'] = time.time() - psutil.boot_time()
data = data2
last = datetime.now()
update()
def oneshot():
global printon, ifttton, data, last
update()
if printon % args.log_period == 0:
ts = last.strftime('%Y-%m-%d %H:%M:%S.%f %Z')
print('{0} {1:>8.2f} U {2:>5.1f} C {3:>8.2f} MHz {4:8s} L {5} M {6}'.format(ts, data['uptime'], data['temp'], data['freq']/MIL, data['state'], data['load'], data['mem']))
printon = printon + 1
if ifttton % args.ifttt_period == 0:
ifttt_report(data['temp'], data['freq'], data['state'])
ifttton = ifttton + 1
display(data['temp'], data['freq'], data['state'])
muststop = False
def stop(sig, frame):
global muststop
print('SIGTERM captured')
muststop = True
signal.signal(signal.SIGTERM, stop)
def loop():
when = time.time()
period = args.period
while not muststop:
oneshot()
when = when + period
# Reduce sleep drift.
s = when - time.time()
if s > 0:
sleep(s)
else:
sleep(period)
# Skip missed triggers
when = time.time()
print('Exitting')
if sense:
sense.clear(C_YELLOW)
sleep(0.1)
sense.clear(C_BLACK)
if args.server:
def run_server():
sys.path.append('./third_party/bottle/')
from bottle import route, run, request, response, redirect, abort
@route('/')
def main():
ts = last.strftime('%Y-%m-%d %H:%M:%S.%f %Z')
ret = copy.deepcopy(data)
ret['_now'] = ts
if request.query.refresh:
response.set_header('Refresh', request.query.refresh)
if request.query.format == 'json':
return ret
vs = []
if args.server_controls:
vs.append("""<tr><td class='Controls'>Controls</td><td>
<a target=_blank href='/power/shutdown'>Shutdown</a> | <a target=_blank href='/power/reboot'>Reboot</a></td></tr>
""")
for key, value in sorted(ret.items()):
vs.append('<tr><td>{0}</td><td>{1}</td></tr>'.format(key, value))
return '<table>' + ''.join(vs) + '</table>'
@route('/power/shutdown')
def power_shutdown():
if args.server_controls:
control_shutdown()
redirect('/')
return
abort(code=403)
@route('/power/reboot')
def power_reboot():
if args.server_controls:
control_reboot()
redirect('/')
return
abort(code=403)
def launch():
run(host=args.server, port=args.server_port)
t = Thread(target=launch, args=())
t.start()
run_server()
loop()