Access to printers from the Docker on Mac OS
To access to the printer from the docker container on Mac OS needs some tricks.
Step 1. CUPSD.CONF changing
On you Mac OS please open /etc/cups/cupsd.conf and change:
Listen localhost:631
to
Listen 0.0.0.0:631
after this line also add:
BrowseAddress @LOCAL
and in the end of section <Location /> add:
Allow @LOCAL
Please save this file and restart CUPS daemon:
sudo launchctl stop org.cups.cupsd && sudo launchctl start org.cups.cupsd
Step 2. Network sharing for needed printers
Please go to Settings -> Printers & Scanners and for each printer, which you will use from the Docker, and make sure the option "Share this printer on the network" is enabled.
Step 3. Starting docker container
ip=$(ifconfig | grep -o "inet [^\n]*" | grep -v 127.0.0.1 | head -1 | cut -d\ -f2)
docker run -it --rm \
-e CUPS_SERVER=$ip:631 \
--privileged \
--network=host \
--entrypoint bash \
IMAGE_ID
REMARK: there is entrypoint to the bash just for testing only. You could change it according to your needs.
Also, probably, --privileged option is not required here.
Step 4. Testing
This command (in the container) should show your printers:
lpstat -p