knxd on Dockerfile (alpine) and connect to KNX/IP gateway

[marcobastianon]

using some tips from google i've create mine Docker file from arm64v8/alpine. i've some issue when i try to start knxd using this knxd_args: "knxd -e 0.0.1 -E 0.0.2:8 -u /tmp/eib -b ipt:10.0.1.90" i find this line on the sample downloaded from knxd github.

where am I wrong?

[smurfix]

What issue are you having? WHat do you expect to happen, what actually happens?

[marcobastianon]

/ # knxd -e 0.0.1 -E 0.0.2:8 -u /tmp/eib -b ipt:10.0.1.90 knxd: invalid option -- e Unknown host RTA type: 12 F00000105: [ 7:B.ipt] Link down, terminating / # knxd -u /tmp/eib -b ipt:10.0.1.90 knxd: invalid option -- u E00000084: [ 1:main] There is no KNX addr= in section 'main'. F00000109: [ 1:main] Error setting up the KNX router.

i need comunication from knxd to my ekkinex KNX/IP GATEWAY

[tru7]

This is a known bug. Not of knxd but of argp_standalone which is used on some platforms for argp functions because that library is implemented incomplete and that bug is triggered by knxd. If that really applies to your case you can work around that by using knxd_args with your arguments to generete the .ini file and use that file as the only argument for knxd.

[marcobastianon]

[A.tcp] server = knxd_tcp port = 6720

[B.ipt] driver = ipt ip-address = 10.0.1.90

[C.ip] driver = ip interface = 10.0.1.90

[main] addr = 0.0.1 client-addrs=0.0.2:8 connections = A.tcp,C.ip background = false

---

with [B.ipt] Unknown host RTA type: 12 F00000105: [ 7:B.ipt] Link down, terminating

---

with [C.ip] Unsupported setsockopt level=0 optname=32 E00000058: [ 8:C.ip] interface 10.0.1.90 not recognized F00000105: [ 7:C.ip] Link down, terminating

give me in all case error

[tru7]

I think you have a problem regarding the IP address. With -b ipt:10.0.1.90 it must be the IP address of the KNX interface you build a tunnel to. With -b ip: it does not need an IP address because it takes its own address for setting up the multcast router. I have no clue how you built the C.ip part.

[marcobastianon]

@ 10.0.1.90 i've ekkinex KNX/IP GATEWAY, in your opinion is some kind of network issue?

[tru7]

Your first problem is a valid configuration. You should generate your file with -b ipt:10.0.1.90. Why don't you just set up knxd on standard linux system and verify that all works. Then you may move it to your docker. But you may very well experience network problems there because the tunnel protocol is peer-to-peer UDP and I don't know how this can be done with docker - but it seems others have done it successfully.

[marcobastianon]

i've start a new linux system on my raspberry pi and knxd works! but it on a different configuration.. is running with systemctl ( following knxd documentation )

this is my option working: KNXD_OPTS="-e 0.0.1 -E 0.0.2:8 -u /tmp/eib -b ipt:10.0.1.90"

but on docker is different i cant use systemctl i must use knxd with the ini file.