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cups-avahi-airprint/README.md

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# chuckcharlie/cups-airprint-brother
Fork from [quadportnick/docker-cups-airprint](https://github.com/quadportnick/docker-cups-airprint)
This Ubuntu-based Docker image runs a CUPS instance that is meant as an AirPrint relay for printers that are already on the network but not AirPrint capable. I am running this on CentOS, but it should work on other Linux distros. I forked the original to add support for my Brother MFC-7840w printer, and use the latest Ubuntu base.
## Configuration
### Volumes:
* `/config`: where the persistent printer configs will be stored
* `/services`: where the Avahi service files will be generated
### Variables:
* `CUPSADMIN`: the CUPS admin user you want created
* `CUPSPASSWORD`: the password for the CUPS admin user
### Ports/Network:
* Must be run on host network. This is required to support multicasting which is needed for Airprint.
### Example run command:
```
docker run --name cups --restart unless-stopped --net host\
-v <your services dir>:/services \
-v <your config dir>:/config \
-e CUPSADMIN="<username>" \
-e CUPSPASSWORD="<password>" \
chuckcharlie/cups-airprint-brother:latest
```
## Add and set up printer:
CUPS will be configurable at http://[host ip]:631 using the CUPSADMIN/CUPSPASSWORD.