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added bulk message

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This commit is contained in:
Hristo Jelev
2020-05-03 16:34:56 +03:00
parent 6a3ebc1e47
commit a2cb0df416
1 changed files with 38 additions and 16 deletions
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52
src/rpi-cpu2mqtt.py
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@@ -6,17 +6,12 @@
from __future__ import division from __future__ import division
import subprocess, time, socket, os import subprocess, time, socket, os
import paho.mqtt.client as paho import paho.mqtt.client as paho
import json
import config import config
# get device host name - used in mqtt topic # get device host name - used in mqtt topic
hostname = socket.gethostname() hostname = socket.gethostname()
# mqtt server configuration
mqtt_host = config.mqtt_host
mqtt_user = config.mqtt_user
mqtt_password = config.mqtt_password
mqtt_port = config.mqtt_port
mqtt_topic_prefix = config.mqtt_topic_prefix
def check_used_space(path): def check_used_space(path):
st = os.statvfs(path) st = os.statvfs(path)
@@ -65,34 +60,58 @@ def check_sys_clock_speed():
def publish_to_mqtt (cpu_load = 0, cpu_temp = 0, used_space = 0, voltage = 0, sys_clock_speed = 0, swap = 0, memory = 0): def publish_to_mqtt (cpu_load = 0, cpu_temp = 0, used_space = 0, voltage = 0, sys_clock_speed = 0, swap = 0, memory = 0):
# connect to mqtt server # connect to mqtt server
client = paho.Client() client = paho.Client()
client.username_pw_set(mqtt_user, mqtt_password) client.username_pw_set(config.mqtt_user, config.mqtt_password)
client.connect(mqtt_host, mqtt_port) client.connect(config.mqtt_host, config.mqtt_port)
# publish monitored values to MQTT # publish monitored values to MQTT
if config.cpu_load: if config.cpu_load:
client.publish(mqtt_topic_prefix+"/"+hostname+"/cpuload", cpu_load, qos=1) client.publish(config.mqtt_topic_prefix+"/"+hostname+"/cpuload", cpu_load, qos=1)
time.sleep(config.sleep_time) time.sleep(config.sleep_time)
if config.cpu_temp: if config.cpu_temp:
client.publish(mqtt_topic_prefix+"/"+hostname+"/cputemp", cpu_temp, qos=1) client.publish(config.mqtt_topic_prefix+"/"+hostname+"/cputemp", cpu_temp, qos=1)
time.sleep(config.sleep_time) time.sleep(config.sleep_time)
if config.used_space: if config.used_space:
client.publish(mqtt_topic_prefix+"/"+hostname+"/diskusage", used_space, qos=1) client.publish(config.mqtt_topic_prefix+"/"+hostname+"/diskusage", used_space, qos=1)
time.sleep(config.sleep_time) time.sleep(config.sleep_time)
if config.voltage: if config.voltage:
client.publish(mqtt_topic_prefix+"/"+hostname+"/voltage", voltage, qos=1) client.publish(config.mqtt_topic_prefix+"/"+hostname+"/voltage", voltage, qos=1)
time.sleep(config.sleep_time) time.sleep(config.sleep_time)
if config.swap: if config.swap:
client.publish(mqtt_topic_prefix+"/"+hostname+"/swap", swap, qos=1) client.publish(config.mqtt_topic_prefix+"/"+hostname+"/swap", swap, qos=1)
time.sleep(config.sleep_time) time.sleep(config.sleep_time)
if config.memory: if config.memory:
client.publish(mqtt_topic_prefix+"/"+hostname+"/memory", memory, qos=1) client.publish(config.mqtt_topic_prefix+"/"+hostname+"/memory", memory, qos=1)
time.sleep(config.sleep_time) time.sleep(config.sleep_time)
if config.sys_clock_speed: if config.sys_clock_speed:
client.publish(mqtt_topic_prefix+"/"+hostname+"/sys_clock_speed", sys_clock_speed, qos=1) client.publish(config.mqtt_topic_prefix+"/"+hostname+"/sys_clock_speed", sys_clock_speed, qos=1)
time.sleep(config.sleep_time) time.sleep(config.sleep_time)
# disconect from mqtt server # disconect from mqtt server
client.disconnect() client.disconnect()
def bulk_publish_to_mqtt (cpu_load = 0, cpu_temp = 0, used_space = 0, voltage = 0, sys_clock_speed = 0, swap = 0, memory = 0):
# compose the json message containing the measured values
values = {}
values['cpu_load'] = str(cpu_load)
values['cpu_temp'] = str(cpu_temp)
values['used_space'] = str(used_space)
values['voltage'] = str(voltage)
values['sys_clock_speed'] = str(sys_clock_speed)
values['swap'] = str(swap)
values['memory'] = str(memory)
print(values)
# connect to mqtt server
client = paho.Client()
client.username_pw_set(config.mqtt_user, config.mqtt_password)
client.connect(config.mqtt_host, config.mqtt_port)
# publish monitored values to MQTT
client.publish(config.mqtt_topic_prefix+"/"+hostname, str(values), qos=1)
# disconect from mqtt server
client.disconnect()
if __name__ == '__main__': if __name__ == '__main__':
# set all monitored values to False in case they are turned off in the config # 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 = False cpu_load = cpu_temp = used_space = voltage = sys_clock_speed = swap = memory = False
@@ -114,4 +133,7 @@ if __name__ == '__main__':
memory = check_memory() memory = check_memory()
# Publish messages to MQTT # Publish messages to MQTT
if config.group_messages:
bulk_publish_to_mqtt(cpu_load, cpu_temp, used_space, voltage, sys_clock_speed, swap, memory)
else:
publish_to_mqtt(cpu_load, cpu_temp, used_space, voltage, sys_clock_speed, swap, memory) publish_to_mqtt(cpu_load, cpu_temp, used_space, voltage, sys_clock_speed, swap, memory)