MQTT client initialization failed

[blackstardlb]

Describe the bug
MQTT client initialization failed. Was working until latest update.

To Reproduce
Steps to reproduce the behavior:

1. Start Glances with the following options:

  image: nicolargo/glances:latest-full
  container_name: glances_mqtt
  restart: always
  pid: host
  volumes:
    - /var/run/docker.sock:/var/run/docker.sock
    - **/glances/data/glances.conf:/glances/conf/glances.conf
  environment:
    - "GLANCES_OPT= -C /glances/conf/glances.conf --disable-plugin all --enable-plugin cpu,mem,containers,system,fs,uptime --quiet --export mqtt"
  networks:
    - proxy

2. See error

glances_mqtt | MQTT client initialization failed
glances_mqtt | Exception ignored in: <function Client.del at 0x7fea5f6316c0>
glances_mqtt | Traceback (most recent call last):
glances_mqtt | File "/venv/lib/python3.11/site-packages/paho/mqtt/client.py", line 874, in del
glances_mqtt | self._reset_sockets()
glances_mqtt | File "/venv/lib/python3.11/site-packages/paho/mqtt/client.py", line 1133, in _reset_sockets
glances_mqtt | self._sock_close()
glances_mqtt | File "/venv/lib/python3.11/site-packages/paho/mqtt/client.py", line 1119, in _sock_close
glances_mqtt | if not self._sock:
glances_mqtt | ^^^^^^^^^^
glances_mqtt | AttributeError: 'Client' object has no attribute '_sock'
glances_mqtt | Connection to MQTT server mosquitto:1883 failed with error: Client.init() missing 1 required positional argument: 'callback_api_version'

Expected behavior
no error.

Environement (please complete the following information)

• Glances & psutil versions: To be completed with result of: glances -V
  Glances v3.4.0.5 with PsUtil v5.9.8

You can also pastebin:

• the Glances configuration file (https://glances.readthedocs.io/en/latest/config.html#location)
  [mqtt]
  enable=true
  host=mosquitto
  port=1883
  tls=false
  user=****
  password=****
  topic=glances
  topic_structure=per-metric

[mlares85]

This is due to paho mqtt changing things for their 2.0.0 release. It has broken all MQTT code that used version 1.x

Relevant github discussion:
eclipse/paho.mqtt.python#814

Their reference for migration to the new 2.0.0 API usage:
https://eclipse.dev/paho/files/paho.mqtt.python/html/migrations.html

The alternative is to rebuild the docker container and in the optional requirements file specify the specific version of paho-mqtt-1.6.1

[blackstardlb]

I downgraded to 3.4.0.3-full for now

[nicolargo]

Related to #2700

Dev branch should be ok and manage correctly both MQTT API version 1 and version 2.