Connecting with mosquitto

[dewell1]

Hi,I have setup Grafana now locally with the mqtt panel and on another machine in my network I got a mosquitto mqtt broker.

1599039163: mosquitto version 1.6.9 starting
1599039163: Using default config.
1599039163: Opening ipv6 listen socket on port 1883.
1599039163: Opening ipv4 listen socket on port 1883.

The broker seems to work well, I can reach it with mosquitto_pub, the result is the following:

1599039216: New connection from 192.168.2.18 on port 1883.
1599039216: New client connected from 192.168.2.18 as mosq-d8iFGefTuhJ0RmjoJ1 (p2, c1, k60).
1599039216: No will message specified.
1599039216: Sending CONNACK to mosq-d8iFGefTuhJ0RmjoJ1 (0, 0)
1599039216: Received PUBLISH from mosq-d8iFGefTuhJ0RmjoJ1 (d0, q0, r0, m0, 'grafana/mqtt-panel/set', ... (4 bytes))
1599039216: Received DISCONNECT from mosq-d8iFGefTuhJ0RmjoJ1
1599039216: Client mosq-d8iFGefTuhJ0RmjoJ1 disconnected.

I configured the mqtt panel with websocket as protocol and the right ip and port. When I press "Test" in the grafana configuration I see the query icon rotating in the panel but at first nothing happens.

After a few seconds the mqtt broker gets the following error message:

1599039293: New connection from 192.168.2.18 on port 1883.
1599039293: Client <unknown> disconnected due to protocol error.

I'm starting mosquitto with the basic standard configuration. Is there anything else to configure?

[geeks-r-us]

By default Mosquitto does not accept websocket connections. You need to open another port with ws or wss protocol

Simplest way is to add the following lines to mosquitto.conf :

listener 9001
protocol websockets

[dewell1]

Thank you very much! I added this now and started mosquitto:

C:\Program Files\mosquitto>mosquitto -v -c mosquitto.conf
1599042024: mosquitto version 1.6.9 starting
1599042024: Config loaded from mosquitto.conf.
1599042024: Opening websockets listen socket on port 9001.
1599042024: Opening ipv6 listen socket on port 1883.
1599042024: Opening ipv4 listen socket on port 1883.

Within the MQTT panel I added the following information

• Protocol: ws
• Server: 192.168.2.8
• Server port: 9001
• Subscribe Topic: grafana/mqtt-panel
• Publish Topic: grafana/mqtt-panel/set
• BasicAuth: None

Pressing "TEST" results in no reaction. Right now I install wireshark to see if there's anything arriving at all. The firewalls are completely open, so I guess it's still some configuration issue with websockets.

Is it right that I still open the ports on 1883?

[geeks-r-us]

There should also an open port on 9001

[fichetto]

Hello,

on my setup, grafana is on the same server of mosquitto broker. I've set protocol and port.

1610282323: Config loaded from /etc/mosquitto/mosquitto.conf. 1610282323: Opening ipv4 listen socket on port 1883. 1610282323: Opening ipv6 listen socket on port 1883. 1610282323: Opening websockets listen socket on port 9001.

My panel is configured as follow: { "type": "geeksrus-mqtt-panel", "title": "Commands", "gridPos": { "x": 0, "y": 0, "w": 12, "h": 8 }, "id": 4, "fieldConfig": { "defaults": { "custom": {} }, "overrides": [] }, "pluginVersion": "7.3.4", "timeFrom": null, "timeShift": null, "description": "", "value": "35", "mqttProtocol": "ws", "mqttServer": "127.0.0.1", "mqttServerPort": 9001, "mqttTopicSubscribe": "grafana/mqtt-panel", "mqttTopicPublish": "grafana/mqtt-panel/set", "mqttAuth": "BasicAuth", "mqttUser": "utente", "mqttPassword": "password", "mqttTopicQuery": "", "mode": "Slider", "model": { "text": "Send", "minValue": 0, "maxValue": 100, "step": 1, "offValue": "false", "onValue": "true" }, "viewModel": { "text": "Send", "minValue": "0", "maxValue": "100", "step": "1", "offValue": "false", "onValue": "true" }, "datasource": null }

Watching the logs, this client (panel) hasn't tried to connect to grafana, never. I'm not sure I've installed correctly the plugin, because I'm not using Docker and I've installed the plugin with grafana-cli.

• grafana-cli --pluginUrl https://github.com/geeks-r-us/mqtt-panel/releases/download/v1.0.6/geeksrus-mqtt-panel-1.0.6.zip plugins install mqtt-panel --name=grafana grafana/grafana

On the panel: I've used "localhost","127.0.0.1", Ethernet IPV4, without success.

• How I can understand where is the problem?
• All the other clients (on 1883 port) are working well.
• Can you help me? I'll be very happy to offer a coffe to you. :)

Thanks Cosimo

[geeks-r-us]

With version 1 of the plugin the mqtt client is not running on the server, it's running on your webbrowser. So 127.0.0.1 / localhost will fail if your browser is not running on your server maschine. You need to replace it with the ip of the server. in this case the ip you use to access grafana.

[fichetto]

Hello,

Yes, I have to use the address of the mqtt server, but now I have a new problem. Grafana doesn't display more the controls (slider, button, text...) in the panel. Now I'm seeing only then empty panel. I've tried to restart, update, upgrade the server but... nothing. I'm expert of embedded electronics and my experience on server side is poor. But I need this funcion on my grafana server. As I've asked before, can you help me?

Thanks

[geeks-r-us]

Empty means like this ?

This can have various reasons:

• Grafana is served over a secured connection and websockets are not secured -> most browser does not allow this for security reasons -> possible solution is to add tls to websockets in mosquitto
• Grafana is tunneled through a firewall (e.g. to the internet) but the websockets are not -> add tunnel for the websocket

If non of the above applies to your issues debug output of your browser (F12 -> Console) would be helpful.

I know this websocket communication is not very convenient and I work on better solution. But this will take some time until it will be released.

[fichetto]

Yes, our case is the first you've explained. I need to find a solution and I can pay for it, due to restricted time I have on my project. Thanks

[fichetto]

However I've just tried to connect to the server by MQTT websocket application and I haven't any problem, without using TLS.

[geeks-r-us]

What is your timeline? I'm currently available for hire. Just get in touch by root [et] geek-r-us.de

The issue is the security policy of the browser. If the connection to a website is secured all other unsecured connections are disallowed by default.

[fichetto]

I need the dashboards working with your panel, before the end of this month. Can I use wss protocol to solve this problem?

Il giorno lun 11 gen 2021 alle ore 09:55 geeks-r-us < [email protected]> ha scritto:

What is your timeline? I'm currently available for hire. Just get in touch by root [et] geek-r-us.de

The issue is the security policy of the browser. If the connection to a website is secured all other unsecured connections are disallowed by default.

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[geeks-r-us]

If you use https + wss it should work

[mo802]

did anyone solve this problem? i'd like to use the panel with mosquitto broker to control a sonoff switch. on my setup, grafana is on the same server of mosquitto broker. please help.

[mo802]

@geeks-r-us i'd be so grateful if you could help me, and i can pay for it.