Openhab on a Mac with docker not working

Setup, Configuration and Use Installation
1

To set up a convenient test/preprod/dev system I wanted to install openhab in a docker container on my Mac. I followed the guidelines in https://www.openhab.org/docs/installation/docker.html but it won’t work on my Mac.
in the logs I find permission errors like

cp: cannot create directory '/openhab/userdata/./etc': Permission denied
cp: cannot create directory '/openhab/userdata/./logs': Permission denied

but I exported the correct id’s that are on my Mac which I found using
id openhab
result in
uid=502(openhab) gid=20(staff) groups=20(staff),503(openhab),12(everyone),61(localaccounts),703(com.apple.sharepoint.group.3),100(_lpoperator),701(com.apple.sharepoint.group.1),702(com.apple.sharepoint.group.2)

so I start the container with

docker run \
        --name openhab \
        --net=host \
        -v /opt/openhab/conf:/openhab/conf \
        -v /opt/openhab/userdata:/openhab/userdata \
        -v /opt/openhab/addons:/openhab/addons\
        -d \
        -e USER_ID=502 \
        -e GROUP_ID=503 \
        openhab/openhab:snapshot-debian

also with sudo docker … doesn’t work
And yes… in the docker preferences I exported the /opt/openhab directory and the permissions seem correct as can be seen here

drwxr-xr-x  2 openhab  openhab  64 26 Jul 17:36 addons
drwxr-xr-x  2 openhab  openhab  64 26 Jul 17:36 conf
drwxr-xr-x  2 openhab  openhab  64 26 Jul 17:36 userdata

Any idea?

3

Hm. Nonne able to help me?

4

OpenHAB requires the Docker container to use the host network. In your case that’s your Mac’s network setup. Therefore the --net=host option is added.

But this option is not supported on Mac:

The host networking driver only works on Linux hosts, and is not supported on Docker Desktop for Mac, Docker Desktop for Windows, or Docker EE for Windows Server.

5

So that means you can’t use openHAB in a docket container?

6

You can. But on Windows or Mac, you should remove --net=host \ and add -p 8080:8080 \.

The only constraint is that UPnP for discovery is not working.

7

That’s right! This information is also in the openHAB container documentation nowadays.

2 Likes
8

It seems like many people ignore it unless it is a Youtube video :frowning: