Unable to connect to MQTT via Docker about zigbee2mqttassistant HOT 8 CLOSED

That's a docker limitation, not a problem with Zigbee2Mqtt.

When using the address 127.0.0.1, you're resolving this in your container namespace, not on the host itself, which is elsewhere.

You can name your containers using --hostname mqttserver and use this name instead to read your MQTT server.

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Hmm don't think this should be closed. This is still very much a limitation of this container.

Your solution requires me to go ahead and update all of my other containers and internal DNS, because I can't use the host network with this container. The only reason I can't use the host network, is because I can't change the HTTP port from 80 to something else.

Unfortunately Docker runs on many types of systems. And sometimes there are reasons why assigning a hostname to a container can't work (one of those is when the MQTT container is using the host network for another reason entirely)

So for now the "fix" is to go ahead and update all my other Docker containers to point to the MQTT hostname. Seems quite the wrong way to do it.

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That did it!

Thanks

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It worked for me when I gave it the "public" ip of the host that's running mqtt. For example: Z2MA_SETTINGS__MQTTSERVER=192.168.1.2

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That's odd.

No tests has been done right now with --net=host because it's not required by this software to have a direct access to your network.

Let's me try it on my side.

I'm glad it's working on Synology NAS ;-). What is the CPU architecture ? Intel or ARM ?

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@philhawthorne Did you try with latest version, now using the alpine images?

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@carldebilly is it possible to change the HTTP port this service is exposed on from something other than 80?

Right now I can't use --net=host for this container because port 80 is used by the Synology Admin Panel. If I can tel this service to be exposed on another port, then I can use --net=host to expose this to my network, and not conflict with Synology.

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Yep it is possible. As described in another issue #67, you can use the following method:

To set port tcp/5000 for http, use the following environment variable:

ASPNETCORE_URLS=http://*:5000

Please close the issue if it fixes your problem :-).

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