508 lines
22 KiB
Python
508 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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# Python script (runs on 2 and 3) to monitor cpu load, temperature, frequency, free space etc.
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# on a Raspberry Pi or Ubuntu computer and publish the data to a MQTT server.
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# RUN sudo apt-get install python-pip
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# RUN pip install paho-mqtt
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from __future__ import division
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import subprocess
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import time
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import socket
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import paho.mqtt.client as paho
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import json
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import config
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import os
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import argparse
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import update
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# get device host name - used in mqtt topic
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hostname = socket.gethostname()
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def check_wifi_signal(format):
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try:
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full_cmd = "ls /sys/class/ieee80211/*/device/net/"
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interface = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0].strip().decode("utf-8")
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full_cmd = "/sbin/iwconfig {} | grep -i quality".format(interface)
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wifi_signal = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
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if format == 'dbm':
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wifi_signal = wifi_signal.decode("utf-8").strip().split(' ')[4].split('=')[1]
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else:
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wifi_signal = wifi_signal.decode("utf-8").strip().split(' ')[1].split('=')[1].split('/')[0]
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wifi_signal = round((int(wifi_signal) / 70)* 100)
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except Exception:
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wifi_signal = 0
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return wifi_signal
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def check_used_space(path):
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st = os.statvfs(path)
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free_space = st.f_bavail * st.f_frsize
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total_space = st.f_blocks * st.f_frsize
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used_space = int(100 - ((free_space / total_space) * 100))
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return used_space
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def check_cpu_load():
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p = subprocess.Popen("uptime", shell=True, stdout=subprocess.PIPE).communicate()[0]
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cores = subprocess.Popen("nproc", shell=True, stdout=subprocess.PIPE).communicate()[0]
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cpu_load = str(p).split("average:")[1].split(", ")[0].replace(' ', '').replace(',', '.')
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cpu_load = float(cpu_load) / int(cores) * 100
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cpu_load = round(float(cpu_load), 1)
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return cpu_load
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def check_voltage():
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try:
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full_cmd = "vcgencmd measure_volts | cut -f2 -d= | sed 's/000//'"
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voltage = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0]
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voltage = voltage.strip()[:-1]
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except Exception:
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voltage = 0
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return voltage.decode('utf8')
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def check_swap():
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full_cmd = "free -t |grep -i swap | awk 'NR == 1 {print $3/$2*100}'"
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swap = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
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swap = round(float(swap.decode("utf-8").replace(",", ".")), 1)
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return swap
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def check_memory():
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full_cmd = "free -t | awk 'NR == 2 {print $3/$2*100}'"
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memory = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
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memory = round(float(memory.decode("utf-8").replace(",", ".")))
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return memory
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def check_cpu_temp():
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full_cmd = "cat /sys/class/thermal/thermal_zone*/temp 2> /dev/null | sed 's/\(.\)..$//' | tail -n 1"
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try:
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p = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
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cpu_temp = p.decode("utf-8").strip()
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except Exception:
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cpu_temp = 0
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return cpu_temp
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def check_sys_clock_speed():
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full_cmd = "awk '{printf (\"%0.0f\",$1/1000); }' </sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq"
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return subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0]
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def check_uptime():
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full_cmd = "awk '{print int($1/3600/24)}' /proc/uptime"
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return int(subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE).communicate()[0])
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def check_model_name():
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full_cmd = "cat /sys/firmware/devicetree/base/model"
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model_name = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0].decode("utf-8")
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if model_name == '':
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full_cmd = "cat /proc/cpuinfo | grep 'name'| uniq"
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model_name = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0].decode("utf-8")
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model_name = model_name.split(':')[1]
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return model_name
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def check_rpi5_fan_speed():
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full_cmd = "cat /sys/devices/platform/cooling_fan/hwmon/*/fan1_input"
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rpi5_fan_speed = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0].decode("utf-8").strip()
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return rpi5_fan_speed
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def get_os():
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full_cmd = 'cat /etc/os-release | grep -i pretty_name'
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pretty_name = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0].decode("utf-8")
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pretty_name = pretty_name.split('=')[1].replace('"', '').replace('\n', '')
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return(pretty_name)
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def get_manufacturer():
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if 'Raspberry' not in check_model_name():
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full_cmd = "cat /proc/cpuinfo | grep 'vendor'| uniq"
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pretty_name = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0].decode("utf-8")
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pretty_name = pretty_name.split(':')[1]
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else:
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pretty_name = 'Raspberry Pi'
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return(pretty_name)
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def check_git_update(script_dir):
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full_cmd = "git -C {} remote update && git -C {} status -uno".format(script_dir, script_dir)
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try:
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git_update = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0].decode("utf-8")
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except subprocess.CalledProcessError as e:
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print("Error updating git repository:", e.output)
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if any(s in git_update for s in ('Your branch is up to date', 'Your branch is up-to-date')):
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git_update = 'off'
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else:
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git_update = 'on'
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return(git_update)
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def check_git_version(script_dir):
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full_cmd = "git -C {} describe --tags `git -C {} rev-list --tags --max-count=1`".format(script_dir, script_dir)
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git_version = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0].decode("utf-8")
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return(git_version)
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def check_git_version_remote(script_dir):
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full_cmd = "git -C {} ls-remote --tags origin | awk -F'/' '{{print $3}}' | sort -V | tail -n 1".format(script_dir)
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result = subprocess.Popen(full_cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()[0].decode("utf-8")
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latest_tag = result.strip()
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return latest_tag if latest_tag else None
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def get_network_ip():
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s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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try:
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# doesn't even have to be reachable
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s.connect(('10.255.255.255', 1))
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IP = s.getsockname()[0]
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except Exception:
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IP = '127.0.0.1'
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finally:
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s.close()
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return IP
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def print_measured_values():
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print(":: rpi-mqtt-monitor")
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print(" Version: " + config.version)
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print("")
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print(":: Device Information")
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print(" Model Name: " + check_model_name().strip())
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print(" Manufacturer: " + get_manufacturer().strip())
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print(" OS: " + get_os().strip())
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print(" Hostname: " + hostname)
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print(" IP Address: " + get_network_ip())
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if args.service:
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print(" Service Sleep Time: " + str(config.service_sleep_time))
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print("")
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print(":: Measured values")
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print(" CPU Load: " + str(cpu_load) + " %")
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print(" CPU Temp: " + str(cpu_temp) + " °C")
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print(" Used Space: " + str(used_space) + " %")
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print(" Voltage: " + str(voltage) + " V")
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print(" CPU Clock Speed: " + str(sys_clock_speed) + " MHz")
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print(" Swap: " + str(swap) + " %")
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print(" Memory: " + str(memory) + " %")
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print(" Uptime: " + str(uptime_days) + " days")
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print(" Wifi Signal: " + str(wifi_signal) + " %")
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print(" Wifi Signal dBm: " + str(wifi_signal_dbm) + " dBm")
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print(" RPI5 Fan Speed: " + str(rpi5_fan_speed) + " RPM")
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print(" Update Available: " + str(git_update))
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print("")
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def config_json(what_config):
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model_name = check_model_name()
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manufacturer = get_manufacturer()
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os = get_os()
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data = {
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"state_topic": "",
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"icon": "",
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"name": "",
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"unique_id": "",
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"unit_of_measurement": "",
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"device": {
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"identifiers": [hostname],
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"manufacturer": manufacturer,
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"model": model_name,
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"name": hostname,
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"sw_version": "rpi-mqtt-monitor " + config.version + " on " + os,
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"configuration_url": "https://github.com/hjelev/rpi-mqtt-monitor"
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}
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}
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data["state_topic"] = config.mqtt_topic_prefix + "/" + hostname + "/" + what_config
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data["unique_id"] = hostname + "_" + what_config
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if what_config == "cpuload":
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data["icon"] = "mdi:speedometer"
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data["name"] = "CPU Usage"
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data["state_class"] = "measurement"
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data["unit_of_measurement"] = "%"
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elif what_config == "cputemp":
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data["icon"] = "hass:thermometer"
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data["name"] = "CPU Temperature"
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data["unit_of_measurement"] = "°C"
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data["state_class"] = "measurement"
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elif what_config == "diskusage":
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data["icon"] = "mdi:harddisk"
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data["name"] = "Disk Usage"
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data["unit_of_measurement"] = "%"
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data["state_class"] = "measurement"
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elif what_config == "voltage":
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data["icon"] = "mdi:flash"
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data["name"] = "CPU Voltage"
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data["unit_of_measurement"] = "V"
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data["state_class"] = "measurement"
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elif what_config == "swap":
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data["icon"] = "mdi:harddisk"
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data["name"] = "Disk Swap"
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data["unit_of_measurement"] = "%"
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data["state_class"] = "measurement"
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elif what_config == "memory":
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data["icon"] = "mdi:memory"
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data["name"] = "Memory Usage"
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data["unit_of_measurement"] = "%"
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data["state_class"] = "measurement"
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elif what_config == "sys_clock_speed":
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data["icon"] = "mdi:speedometer"
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data["name"] = "CPU Clock Speed"
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data["unit_of_measurement"] = "MHz"
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data["state_class"] = "measurement"
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elif what_config == "uptime_days":
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data["icon"] = "mdi:calendar"
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data["name"] = "Uptime"
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data["unit_of_measurement"] = "days"
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data["state_class"] = "measurement"
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elif what_config == "wifi_signal":
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data["icon"] = "mdi:wifi"
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data["name"] = "Wifi Signal"
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data["unit_of_measurement"] = "%"
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data["state_class"] = "measurement"
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elif what_config == "wifi_signal_dbm":
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data["icon"] = "mdi:wifi"
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data["name"] = "Wifi Signal"
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data["unit_of_measurement"] = "dBm"
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data["state_class"] = "measurement"
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elif what_config == "rpi5_fan_speed":
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data["icon"] = "mdi:fan"
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data["name"] = "Fan Speed"
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data["unit_of_measurement"] = "RPM"
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data["state_class"] = "measurement"
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elif what_config == "git_update":
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data["icon"] = "mdi:git"
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data["name"] = "RPi MQTT Monitor"
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data["device_class"] = "update"
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data["state_class"] = "measurement"
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data["payload_on"] = "on"
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data["payload_off"] = "off"
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else:
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return ""
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# Return our built discovery config
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return json.dumps(data)
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def publish_to_mqtt(cpu_load=0, cpu_temp=0, used_space=0, voltage=0, sys_clock_speed=0, swap=0, memory=0,
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uptime_days=0, wifi_signal=0, wifi_signal_dbm=0, rpi5_fan_speed=0, git_update=False):
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# connect to mqtt server
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client = paho.Client(client_id="rpi-mqtt-monitor-" + hostname)
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client.username_pw_set(config.mqtt_user, config.mqtt_password)
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client.connect(config.mqtt_host, int(config.mqtt_port))
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# publish monitored values to MQTT
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if config.cpu_load:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_cpuload/config",
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config_json('cpuload'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/cpuload", cpu_load, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.cpu_temp:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_cputemp/config",
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config_json('cputemp'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/cputemp", cpu_temp, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.used_space:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_diskusage/config",
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config_json('diskusage'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/diskusage", used_space, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.voltage:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_voltage/config",
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config_json('voltage'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/voltage", voltage, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.swap:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_swap/config",
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config_json('swap'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/swap", swap, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.memory:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_memory/config",
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config_json('memory'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/memory", memory, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.sys_clock_speed:
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if config.discovery_messages:
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client.publish(
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"homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_sys_clock_speed/config",
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config_json('sys_clock_speed'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/sys_clock_speed", sys_clock_speed, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.uptime:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_uptime_days/config",
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config_json('uptime_days'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/uptime_days", uptime_days, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.wifi_signal:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_wifi_signal/config",
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config_json('wifi_signal'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/wifi_signal", wifi_signal, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.wifi_signal_dbm:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_wifi_signal_dbm/config",
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config_json('wifi_signal_dbm'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/wifi_signal_dbm", wifi_signal_dbm, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.rpi5_fan_speed:
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if config.discovery_messages:
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client.publish("homeassistant/sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_rpi5_fan_speed/config",
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config_json('rpi5_fan_speed'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/rpi5_fan_speed", rpi5_fan_speed, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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if config.git_update:
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if config.discovery_messages:
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client.publish("homeassistant/binary_sensor/" + config.mqtt_topic_prefix + "/" + hostname + "_git_update/config",
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config_json('git_update'), qos=config.qos)
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time.sleep(config.sleep_time)
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client.publish(config.mqtt_topic_prefix + "/" + hostname + "/git_update", git_update, qos=config.qos, retain=config.retain)
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time.sleep(config.sleep_time)
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# disconnect from mqtt server
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client.disconnect()
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def bulk_publish_to_mqtt(cpu_load=0, cpu_temp=0, used_space=0, voltage=0, sys_clock_speed=0, swap=0, memory=0,
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uptime_days=0, wifi_signal=0, wifi_signal_dbm=0, rpi5_fan_speed=0, git_update=0):
|
|
# compose the CSV message containing the measured values
|
|
|
|
values = cpu_load, cpu_temp, used_space, voltage, int(sys_clock_speed), swap, memory, uptime_days, wifi_signal, wifi_signal_dbm, rpi5_fan_speed, git_update
|
|
values = str(values)[1:-1]
|
|
|
|
# connect to mqtt server
|
|
client = paho.Client(client_id="rpi-mqtt-monitor-" + hostname)
|
|
client.username_pw_set(config.mqtt_user, config.mqtt_password)
|
|
client.connect(config.mqtt_host, int(config.mqtt_port))
|
|
|
|
# publish monitored values to MQTT
|
|
client.publish(config.mqtt_topic_prefix + "/" + hostname, values, qos=config.qos, retain=config.retain)
|
|
|
|
# disconnect from mqtt server
|
|
client.disconnect()
|
|
|
|
|
|
def parse_arguments():
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument('--display', '-d', action='store_true', help='display values on screen', default=False)
|
|
parser.add_argument('--service', '-s', action='store_true', help='run script as a service, sleep interval is configurable in config.py', default=False)
|
|
parser.add_argument('--version', '-v', action='store_true', help='display installed version and exit', default=False)
|
|
parser.add_argument('--update', '-u', action='store_true', help='update script and config then exit', default=False)
|
|
args = parser.parse_args()
|
|
|
|
if args.update:
|
|
version = check_git_version_remote(script_dir).strip()
|
|
git_update = check_git_update(script_dir)
|
|
|
|
if git_update == 'on':
|
|
git_update = True
|
|
else:
|
|
git_update = False
|
|
|
|
update.do_update(version, git_update)
|
|
|
|
exit()
|
|
|
|
if args.version:
|
|
installed_version = check_git_version(script_dir).strip()
|
|
latest_versino = check_git_version_remote(script_dir).strip()
|
|
print("Installed version: " + installed_version)
|
|
print("Latest version: " + latest_versino)
|
|
if installed_version != latest_versino:
|
|
print("Update available")
|
|
else:
|
|
print("No update available")
|
|
exit()
|
|
return args
|
|
|
|
|
|
if __name__ == '__main__':
|
|
script_dir = os.path.dirname(os.path.realpath(__file__))
|
|
args = parse_arguments();
|
|
|
|
while True:
|
|
# set all monitored values to False in case they are turned off in the config
|
|
cpu_load = cpu_temp = used_space = voltage = sys_clock_speed = swap = memory = uptime_days = wifi_signal = wifi_signal_dbm = rpi5_fan_speed = git_update = False
|
|
|
|
# delay the execution of the script
|
|
if hasattr(config, 'random_delay'): time.sleep(config.random_delay)
|
|
|
|
if hasattr(config, 'used_space_path'): used_space_path = config.used_space_path
|
|
else: used_space_path = '/'
|
|
|
|
# collect the monitored values
|
|
if config.cpu_load:
|
|
cpu_load = check_cpu_load()
|
|
if config.cpu_temp:
|
|
cpu_temp = check_cpu_temp()
|
|
if config.used_space:
|
|
used_space = check_used_space(used_space_path)
|
|
if config.voltage:
|
|
voltage = check_voltage()
|
|
if config.sys_clock_speed:
|
|
sys_clock_speed = check_sys_clock_speed()
|
|
if config.swap:
|
|
swap = check_swap()
|
|
if config.memory:
|
|
memory = check_memory()
|
|
if config.uptime:
|
|
uptime_days = check_uptime()
|
|
if config.wifi_signal:
|
|
wifi_signal = check_wifi_signal('')
|
|
if config.wifi_signal_dbm:
|
|
wifi_signal_dbm = check_wifi_signal('dbm')
|
|
if config.rpi5_fan_speed:
|
|
rpi5_fan_speed = check_rpi5_fan_speed()
|
|
if config.git_update:
|
|
git_update = check_git_update(script_dir)
|
|
|
|
# Display collected values on screen if --display option is used
|
|
if args.display:
|
|
print_measured_values()
|
|
|
|
# Publish messages to MQTT
|
|
if hasattr(config, 'group_messages') and config.group_messages:
|
|
bulk_publish_to_mqtt(cpu_load, cpu_temp, used_space, voltage, sys_clock_speed, swap, memory, uptime_days, wifi_signal, wifi_signal_dbm, rpi5_fan_speed, git_update)
|
|
else:
|
|
publish_to_mqtt(cpu_load, cpu_temp, used_space, voltage, sys_clock_speed, swap, memory, uptime_days, wifi_signal, wifi_signal_dbm, rpi5_fan_speed, git_update)
|
|
|
|
# if not running as a service, break the loop after one iteration
|
|
if not args.service:
|
|
break
|
|
# if running as a service, sleep before the next iteration
|
|
time.sleep(config.service_sleep_time)
|