sickhub / docker-cups-airprint Goto Github PK

Hi!

I'm trying to configure this for my printer, from what I read I need to first do cups-setup and configure everything, then copy the config, and create another container and copy the config to it, I'm still on the cups-setup, when I navigate to localhost:631 I get a "Bad Request" message, I read on a stackoverflow issue that I should change Listen to *:631 but when looking at the config its got Listen /run/cups/cup.sock so I'm not sure if I should change that.

The IP it shows in the console didn't work for me, and neither does the hostname.

I have not setup anything like this before so I'm very newbie (and its also printers, so its always a hassle)

docker-cups-airprint does work fine on arm64 💯

I only disabled IPv6 and limited to eth0 for avahi.
I'm running it on kubernetes with host networking and without limiting to eth0 it would announce way to many interfaces.

sed -i 's/^.*allow-interfaces=.*/allow-interfaces=eth0/' /etc/avahi/avahi-daemon.conf
sed -i 's/^.*use-ipv6=.*/use-ipv6=no/' /etc/avahi/avahi-daemon.conf
#sed -i 's/^.*enable\-reflector=.*/enable\-reflector\=yes/' /etc/avahi/avahi-daemon.conf
#sed -i 's/^.*reflect\-ipv=.*/reflect\-ipv\=yes/' /etc/avahi/avahi-daemon.conf
sed -i 's/^.publish-aaaa-on-ipv4=.*/publish-aaaa-on-ipv4=no/' /etc/avahi/avahi-daemon.conf

My image can be found here https://hub.docker.com/repository/docker/vchrisb/airprint-bridge/general

I have a big need for the scanner functionality in my Brother DCP-7055W. Unfortunately Brother is either dragging it's feet, or will abandon my model for MacOS 11. I found this wonderfull project https://github.com/SimulPiscator/AirSane

Any way we could roll in libsane and airsane into this somehow?
(I'd be willing to do PR's, but i've never worked with sane before)

Also, is cups-dbus-avahi IPC dead in the water? Looks like we're doing this by hand now, since cups can't talk to avahi at all :/

• add a separate USB.md file to the repo, describing the process of attaching/setting up a USB printer
• add screenshots/photos to docs/ (if applicable)
• link the USB.md file in the README in a "Example Setups" (or similar) section

@HammyHavoc would you be willing to create a PR for this?

Tasks:

• some research on where to find .ppd files to gather links
• try some examples, write a howto for the best and link to the rest

like docker-dnsmasq and others

• setup dev branch
• decide on base image (debian or ubuntu or alpine?)
  • define environment matrix (versions)
• setup travis and make sure it works
  *.[ ] verify that new tags are built on docker hub

I'm using the docker with happiness until I turn off the USB printer (a Canon MP240 if useful) but not the server. Then I still spend hours trying to make it work (putting the printer properly on the network again).

I noticed that in logs if I restart the server, I find the following error:

Unable to communicate with avahi-daemon: Access denied

Am I doing something wrong? Should it be fine to power off the printer while the server is still running?

I want to set up a virtual printer that does not actually print, but only produces pdf files, in order to test AirPrint

I say all this with a great desire to use the project, and a decent amount of confusion to get it up and running, with the greatest amount of respect! I ultimately passed on using the project due to running out of time to troubleshoot, but I'd love to use it and a few small documentation improvements I believe would really help.

I think the readme would greatly benefit from focusing on the golden path first: how do you expect the users to use this project 99% of the time?

I would then suggest moving the separate troubleshooting steps either all to the end of the readme or to another markdown file.

An example of this is the macvlan portion;

You don't need the macvlan bridge if your host does not need to talk to the container!

Okay, so what do I do if I don't care about host access? The only instructions are for using macvlan. Is macvlan the expected way to use it? Or is this a sidebar for those who do need it, but other are supposed to just skip over some portion of the doc?

Also, even with following the instructions, there appears to be an issue with the provided example bash sub shell script:

sudo -- bash -c '(
dhclient -r $eth && ip addr flush dev $eth && ip neigh flush all
dhclient mac0 && service resolvconf restart || dhclient $eth
)'

It references $eth, but $eth is not accessible to this subshell. For example:

eth="foo"
sudo -- bash -c '(
echo $eth - this is the value
)'
# echos " - this is the value"

It would work if you did

eth="foo"
sudo -- bash -c "echo \"$eth - this is the value\" && secondCommandForExample"
# outputs:
# foo - this is the value
# second command output

It also took me a while to realize these were bash commands. Maybe it would be best to put this all in a script that the user can run called something like demo_example.sh or something?

Also, it still didn't see my Brother USB printer even though I used that volume trick mentioned (which I fully admit may have been pebkac as I got it to work in a personally built container before I found this project, so I might have just set it up wrong with all the iterated attempts).

I feel bad requesting these changes and not just making a PR, but I don't feel comfortable making a PR unless I can at LEAST get it to work myself.

Ultimately, I don't know how helpful my suggestions are since I wasn't able to get it to work, but I ultimately felt like I was jumping all over the readme instead of generally starting at the top and moving down as I progressed.

Again, I feel really bad just complaining! I hope this is received as constructive feedback and not just whining. :) Maybe I might be able to make a couple real contributions if I can get it to work eventually :D

Background:

• I started this project years ago to solve a problem for me: using an old USB printer with AirPrint.
• I invested significant time to make this publicly available and reusable - and I got "nothing" out of it (apart from solving the problem for myself) but a few stars on GitHub and some anonymous users that seemed happy it exists.

Present:
I just bought a new printer that has AirPrint builtin. I will not keep my old printer and thus will no longer use this image or be able to test changes.

Consequence: We need to find a new maintainer for this project or it will die slowly.

run get cups version for each image before pushing tag

Hello.

I think your idea is super cool to provide automated way to share drivers with AirPrint. I have running well Brother DPC-J315W connected to several end users (Windows 10, Linux). I finally want to enable my users to use iOS AirPrint.

I installed your Docker Image and I try configure my printer with following steps.

then

I add PPD file - source from Brother drivers. https://pastebin.com/Ryc7sc7y

I have an error Idle - "File "/usr/lib/cups/filter/brlpdwrapperdcpj315w" not available: No such file or directory"

How can I fix it?

As the title says ;-)

CUPS logs should appear in docker logs, see jacobalberty/cups-docker#3

• rewrite travis-ci to build for multiple arch
• push images to docker hub, don't build on docker hub -> faster

Hello, my container is crashing.

I have done created an docker compose file:
version: '2' services: cups: image: drpsychick/airprint-bridge:latest container_name: cups network_mode: host restart: unless-stopped volumes: - /home/pi/cups/config:/config - /home/pi/cups/services:/services environment: - CUPS_ADMIN_USER=admin - CUPS_ADMIN_PASSWORD=airprint_2846 - CUPS_WEBINTERFACE=yes - CUPS_REMOTE_ADMIN=yes

and when I execute docker-compose up on an raspberry pi I get the following error:
sleep: cannot read realtime clock: Operation not permitted

Does anyone know what I am doing wrong?

services:
    airprint-bridge:
        network_mode: host
        container_name: cups-test
        environment:
            - CUPS_WEBINTERFACE=yes
            - CUPS_REMOTE_ADMIN=yes
            - CUPS_USER_ADMIN=admin
            - CUPS_USER_PASSWORD=password
        image: drpsychick/airprint-bridge:latest

When I try to login using the defined username and password or using root, I get access denied.

Hello, I have a Rapsberry 3B and have a homeassistant OS installed on it with Portainer installed inside to run docker containers. I have successfully used the previous version of your product and have been printing to the printer via airprint. But after the last container update, I can no longer access the CUPS address. Can you help?

I have an issue where the avahi-daemon stops after sometime. and restarting the container doesn't fix it. To fix it I have to shell into the box and restart avahi-daemon. Have you seen this behavior? or maybe add a automatic re starter for avahi?

I'm trying to deploy the image in portainer swarm environment. I've configured a macvlan network and it should be getting a valid address.

However, when running the service, I get this log with a bunch of errors due to it being unable to start the HTTP server:

D [30/Sep/2023:19:09:26 +0000] [Client 33] PUT /admin/conf/cupsd.conf HTTP/1.1
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Active clients and dirty files", busy="Active clients and dirty files"
D [30/Sep/2023:19:09:26 +0000] [Client 33] Read: status=200, state=9
D [30/Sep/2023:19:09:26 +0000] [Client 33] No authentication data provided.
D [30/Sep/2023:19:09:26 +0000] cupsdIsAuthorized: username=""
localhost - - [30/Sep/2023:19:09:26 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 401 0 - -
D [30/Sep/2023:19:09:26 +0000] [Client 33] cupsdSendHeader: code=401, type="text/html", auth_type=0
D [30/Sep/2023:19:09:26 +0000] [Client 33] WWW-Authenticate: Basic realm=\"CUPS\", PeerCred, Local trc=\"y\"
D [30/Sep/2023:19:09:26 +0000] [Client 33] Closing connection.
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Active clients and dirty files"
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Active clients and dirty files", busy="Dirty files"
D [30/Sep/2023:19:09:26 +0000] [Client 34] Server address is "/run/cups/cups.sock".
D [30/Sep/2023:19:09:26 +0000] [Client 34] Accepted from localhost (Domain)
D [30/Sep/2023:19:09:26 +0000] [Client 34] Waiting for request.
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Active clients and dirty files", busy="Active clients and dirty files"
D [30/Sep/2023:19:09:26 +0000] [Client 35] Server address is "/run/cups/cups.sock".
D [30/Sep/2023:19:09:26 +0000] [Client 35] Accepted from localhost (Domain)
D [30/Sep/2023:19:09:26 +0000] [Client 35] Waiting for request.
D [30/Sep/2023:19:09:26 +0000] [Client 34] HTTP_STATE_WAITING Closing for error 32 (Broken pipe)
D [30/Sep/2023:19:09:26 +0000] [Client 34] Closing connection.
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Active clients and dirty files"
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Active clients and dirty files", busy="Dirty files"
D [30/Sep/2023:19:09:26 +0000] [Client 36] Server address is "/run/cups/cups.sock".
D [30/Sep/2023:19:09:26 +0000] [Client 36] Accepted from localhost (Domain)
D [30/Sep/2023:19:09:26 +0000] [Client 36] Waiting for request.
D [30/Sep/2023:19:09:26 +0000] [Client 35] HTTP_STATE_WAITING Closing for error 32 (Broken pipe)
D [30/Sep/2023:19:09:26 +0000] [Client 35] Closing connection.
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Active clients and dirty files"
D [30/Sep/2023:19:09:26 +0000] [Client 36] PUT /admin/conf/cupsd.conf HTTP/1.1
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Active clients and dirty files", busy="Dirty files"
D [30/Sep/2023:19:09:26 +0000] [Client 36] Read: status=200, state=9
D [30/Sep/2023:19:09:26 +0000] [Client 36] Authorized as root using PeerCred.
D [30/Sep/2023:19:09:26 +0000] cupsdIsAuthorized: username="root"
D [30/Sep/2023:19:09:26 +0000] [Client 36] AppArmor not in use.
D [30/Sep/2023:19:09:26 +0000] [Client 36] Read: status=100, state=9
I [30/Sep/2023:19:09:26 +0000] [Client 36] Installing config file "/etc/cups/cupsd.conf"...
localhost - root [30/Sep/2023:19:09:26 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 201 4726 - -
D [30/Sep/2023:19:09:26 +0000] [Client 36] cupsdSendHeader: code=201, type="(null)", auth_type=0
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Active clients and dirty files"
D [30/Sep/2023:19:09:26 +0000] [Client 36] Closing connection.
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Dirty files"
I [30/Sep/2023:19:09:26 +0000] Generating printcap /run/cups/printcap...
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Not busy", busy="Dirty files"
I [30/Sep/2023:19:09:26 +0000] Listening to [v1.::1]:631 (IPv6)
I [30/Sep/2023:19:09:26 +0000] Listening to 127.0.0.1:631 (IPv4)
I [30/Sep/2023:19:09:26 +0000] Listening to /run/cups/cups.sock (Domain)
I [30/Sep/2023:19:09:26 +0000] Remote access is disabled.
D [30/Sep/2023:19:09:26 +0000] Added auto ServerAlias airprint-bridge
I [30/Sep/2023:19:09:26 +0000] Loaded configuration file "/etc/cups/cupsd.conf"
D [30/Sep/2023:19:09:26 +0000] Using keychain "/etc/cups/ssl" for server name "airprint-bridge".
I [30/Sep/2023:19:09:26 +0000] Configured for up to 100 clients.
I [30/Sep/2023:19:09:26 +0000] Allowing up to 100 client connections per host.
I [30/Sep/2023:19:09:26 +0000] Using policy "default" as the default.
D [30/Sep/2023:19:09:26 +0000] cupsdMarkDirty(--p--)
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Not busy"
I [30/Sep/2023:19:09:26 +0000] Partial reload complete.
E [30/Sep/2023:19:09:26 +0000] Unable to open listen socket for address [v1.::1]:631 - Cannot assign requested address.
I [30/Sep/2023:19:09:26 +0000] Listening to 127.0.0.1:631 on fd 4...
I [30/Sep/2023:19:09:26 +0000] Listening to /run/cups/cups.sock on fd 5...
I [30/Sep/2023:19:09:26 +0000] Resuming new connection processing...
D [30/Sep/2023:19:09:26 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Dirty files"
D [30/Sep/2023:19:09:26 +0000] Discarding unused server-restarted event...
--> adding printers
CUPS_LPADMIN_PRINTER1 = 
--> CUPS configured
===========================================================
The dockerized CUPS instance is now ready for use! The web
interface is available here:
URL:       http://10.1.0.224:631/ or http://airprint-bridge:631/
Username:  "admin"
Password:  41rpr1nt
===========================================================
D [30/Sep/2023:19:09:34 +0000] cupsdSetBusyState: newbusy="Active clients and dirty files", busy="Dirty files"
D [30/Sep/2023:19:09:34 +0000] [Client 37] Server address is "127.0.0.1".
D [30/Sep/2023:19:09:34 +0000] [Client 37] Accepted from localhost:43158 (IPv4)
D [30/Sep/2023:19:09:34 +0000] [Client 37] Waiting for request.
D [30/Sep/2023:19:09:34 +0000] cupsdAddCert: Adding certificate for PID 0
D [30/Sep/2023:19:09:34 +0000] [Client 37] Connection now encrypted.
D [30/Sep/2023:19:09:34 +0000] [Client 37] HEAD /printers/ HTTP/1.1
D [30/Sep/2023:19:09:34 +0000] cupsdSetBusyState: newbusy="Active clients and dirty files", busy="Active clients and dirty files"
D [30/Sep/2023:19:09:34 +0000] [Client 37] Read: status=200, state=4
D [30/Sep/2023:19:09:34 +0000] [Client 37] No authentication data provided.
D [30/Sep/2023:19:09:34 +0000] [Client 37] cupsdSendHeader: code=200, type="(null)", auth_type=0
localhost - - [30/Sep/2023:19:09:34 +0000] "HEAD /printers/ HTTP/1.1" 200 0 - -
D [30/Sep/2023:19:09:34 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Active clients and dirty files"
D [30/Sep/2023:19:09:34 +0000] [Client 37] HTTP_STATE_WAITING Closing for error 32 (Broken pipe)
D [30/Sep/2023:19:09:34 +0000] [Client 37] Closing connection.
D [30/Sep/2023:19:09:34 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Dirty files"
D [30/Sep/2023:19:09:34 +0000] [Client 37] Waiting for socket close.
D [30/Sep/2023:19:09:34 +0000] [Client 37] Closing on EOF.
D [30/Sep/2023:19:09:34 +0000] [Client 37] Closing connection.
D [30/Sep/2023:19:09:34 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Dirty files"
D [30/Sep/2023:19:09:34 +0000] cupsdSetBusyState: newbusy="Active clients and dirty files", busy="Dirty files"
D [30/Sep/2023:19:09:34 +0000] [Client 38] Server address is "/run/cups/cups.sock".
D [30/Sep/2023:19:09:34 +0000] [Client 38] Accepted from localhost (Domain)
D [30/Sep/2023:19:09:34 +0000] [Client 38] Waiting for request.
D [30/Sep/2023:19:09:34 +0000] [Client 38] HTTP_STATE_WAITING Closing for error 32 (Broken pipe)
D [30/Sep/2023:19:09:34 +0000] [Client 38] Closing connection.
D [30/Sep/2023:19:09:34 +0000] cupsdSetBusyState: newbusy="Dirty files", busy="Active clients and dirty files"

This is my compose file:

version: '3.0'

networks:
  home_macvlan_machine-city:                         # Name of macvlan network
    external: true

services:
  airprint-bridge:
    container_name: airprint-bridge
    image: drpsychick/airprint-bridge
    hostname: ${HOSTNAME}
    #cap_add:
    #- NET_ADMIN
    networks:
      home_macvlan_machine-city:
        ipv4_address: ${CUPS_IP}
    #ports:
    #  - "137:137/udp"
    #  - "139:139/tcp"
    #  - "445:445/tcp"
    #  - "631:631/tcp"
    #  - "5353:5353/udp"
    environment:
      - CUPS_ADMIN_USER=${CUPS_ADMIN_USER:-"admin"}
      - CUPS_ADMIN_PASSWORD=${CUPS_ADMIN_PASSWORD:-"secr3t"}
      - CUPS_WEBINTERFACE=${CUPS_WEBINTERFACE:-"yes"}
      - CUPS_SHARE_PRINTERS=${CUPS_SHARE_PRINTERS:-"yes"}
      - CUPS_REMOTE_ADMIN=${CUPS_REMOTE_ADMIN:-"yes"} # allow admin from non local source
      - CUPS_ACCESS_LOGLEVEL=${CUPS_ACCESS_LOGLEVEL:-"all"} # all, access, config, see `man cupsd.conf`
      - CUPS_LOGLEVEL=${CUPS_LOGLEVEL:-"debug"} # error, warn, info, debug, debug2 see `man cupsd.conf`
      - CUPS_ENV_DEBUG=${CUPS_ENV_DEBUG:-"no"} # debug startup script and activate CUPS debug logging
      #- CUPS_IP=${CUPS_IP:-$(hostname -i)} # no need to set this usually
      #- CUPS_HOSTNAME=${CUPS_HOSTNAME:-$(hostname -f)} # no need to set this usually -> allows accessing cups via name: https://cups.domain:631/
      # pass the server cert/key via env in one line each, i.e. CUPS_SSL_CERT=---- BEGIN CERT ...\none\nline\nseparated\nby\nbackslash\nnewline
      #- CUPS_SSL_CERT=${CUPS_SSL_CERT:-""}
      #- CUPS_SSL_KEY=${CUPS_SSL_KEY:-""}
      # avahi configuration options
      - AVAHI_INTERFACES=${AVAHI_INTERFACES:-"eth0"}
      - AVAHI_IPV6=${AVAHI_IPV6:-"no"}
      - AVAHI_REFLECTOR=${AVAHI_REFLECTOR:-"no"}
      - AVAHI_REFLECT_IPV=${AVAHI_REFLECT_IPV:-"no"}
    ipc: shareable
    restart: unless-stopped
    deploy:
      placement:
        constraints: [node.hostname == machine-city]

Can anyone help with this?

it seems systemd is required and causes a timeout

method call time=1585598834.846481 sender=:1.1 -> destination=org.freedesktop.systemd1 serial=2 path=/org/freedesktop/systemd1; interface=org.freedesktop.systemd1.Manager; member=GetDynamicUsers
method call time=1585598834.851244 sender=:1.2 -> destination=org.freedesktop.systemd1 serial=2 path=/org/freedesktop/systemd1; interface=org.freedesktop.systemd1.Manager; member=GetDynamicUsers
method call time=1585598854.951282 sender=:1.4 -> destination=org.freedesktop.systemd1 serial=2 path=/org/freedesktop/systemd1; interface=org.freedesktop.systemd1.Manager; member=GetDynamicUsers
[...]
error time=1585598859.818583 sender=org.freedesktop.DBus -> destination=:1.1 error_name=org.freedesktop.DBus.Error.TimedOut reply_serial=2
   string "Failed to activate service 'org.freedesktop.systemd1': timed out (service_start_timeout=25000ms)"
error time=1585598859.818658 sender=org.freedesktop.DBus -> destination=:1.2 error_name=org.freedesktop.DBus.Error.TimedOut reply_serial=2
   string "Failed to activate service 'org.freedesktop.systemd1': timed out (service_start_timeout=25000ms)"
error time=1585598859.818695 sender=org.freedesktop.DBus -> destination=:1.4 error_name=org.freedesktop.DBus.Error.TimedOut reply_serial=2
   string "Failed to activate service 'org.freedesktop.systemd1': timed out (service_start_timeout=25000ms)"

I'm using IPVLAN, does it work with it ?

Hi, the http page shows OpenPrinting CUPS 2.4.2
https page shows OpenPrinting CUPS 2.4.1

Hi,
I'm using docker on Synology NAS with OS names DSM based on busybox.

Looks like there is some issue in my log :

The default configuration of my printer :

it takes a will to collect it collect the wrong things :


Enveloppe <> A4

I don't understand what is going on, but I'm trying to find a solution.
I will update if I have any more information.

airprint ，
ios devices can only print images, but cannot print pdf, word, web pages, etc.
My printer is a black and white printer, I guess it’s a cups-filter problem

Hi,
I think it would be easier to make the printers.conf and other custom config persistent using a specific volume
I did
docker volume create cups
then I added a (-v /cups:/etc/cups) in the docker run command
I have already saved the printers.conf in the hst as you mentioned so I have just copy it
cp printers.conf /var/lib/docker/volumes/cups/_data/
restarted the container and the printers remains

Thanks

see https://github.com/DrPsychick/docker-githubtraffic/tree/main/.github/workflows

unfo, gcp-connector requires dbus. If you don't need that, you're fine.

Once dbus starts it waits 90s and runs into a timeout, after that it works fine.

If we find an answer, post here to make others happy as well:

• https://stackoverflow.com/questions/57018272/why-does-dbus-daemon-take-1min30s-to-start
• https://unix.stackexchange.com/questions/471545/very-slow-login-very-slow-response-dbus-error-ubuntu-18-04-1-lts-on-vir

@vajonam

Hi, i am coming from this commit
In the past i had removed the gpc stuff on a local checkout myself. And your very nice container worked fine for months
ATM i am migrating my docker host and tried to go with upstream again
But it seems pull #45 killed it for me

output:

cups-airprint  | The dockerized CUPS instance is now ready for use! The web
cups-airprint  | interface is available here:
cups-airprint  | URL:       http://192.168.1.253:631/ or http://futros740:631/
cups-airprint  | Username:  admin
cups-airprint  | Password:  admin
cups-airprint  |
cups-airprint  | ===========================================================
cups-airprint  | Traceback (most recent call last):
cups-airprint  |   File "/opt/airprint/airprint-generate.py", line 299, in <module>
cups-airprint  |     apg.generate()
cups-airprint  |   File "/opt/airprint/airprint-generate.py", line 179, in generate
cups-airprint  |     if attrs['color-supported']:
cups-airprint  | KeyError: 'color-supported'

printer creation:

- CUPS_LPADMIN_PRINTER1=lpadmin -D "HP laserJet M2727 MFP" -p LaserJet123 -v lpd://10.0.0.29/queue -L LivingRoom -o HPOption_Duplexer=true -o Resolution=1200dpi -o PageSize=A4 -o Duplex=DuplexNoTumble -o MediaType=Plain -o Smoothing=off -o HPEconoMode=false -o HPServicesWeb=ProductManuals -o printer-error-policy=abort-job -o cupsIPPSupplies=true
- CUPS_LPADMIN_PRINTER1_ENABLE=cupsenable LaserJet123
- CUPS_LPADMIN_PRINTER1_ACCEPT=cupsaccept LaserJet123

the attrs array parsed in python script (this is from manual adding via cups interface and trying hplip address for more information so ignore device uri)
arry parsed in pythonscript.txt

Adding the color-supported to CUPS_LPADMIN_PRINTER1 was not sufficient

(Only) after removing the color-supported option from airprint-generate.py creating an avahi service was successful
Commenting out wasn't ideal, so i did some research. Seems to me like the value checked for color isn't ideal and/or needs a fallback:

• "print-color-mode-default/print-color-mode-supported": A list of supported color printing modes, for example 'bi-level', 'monochrome', and 'color'.
• color-supported is valid and included in RFC, but it seems like it's not existent on every printer
• Bonjour Print Specification e.g. for the last options missing here like the finishing options or duplex
• OMV AVAHI service script in python 2 (?) with duplex detection

Sadly my python skills s**** and my printer is not supporting that much, so i leave the additional information here and maybe get back to it

the quick fix for me is to just comment out the commit mentioned above

Greetings

Hi,

I try to make my Brother printer available via AirPrint. It's plugged via USB to an Airport Express which makes it appear on my network.
On my Macbook cups web ui, I can see the following information about it:

Description: | Brother HL-1110 series
Location: AirPort
Driver: Brother HL-1110 series CUPS (grayscale)
Connection: dnssd://Brother%20HL-1110%20series._riousbprint._tcp.local./Brother%20HL-1110%20series%20H3N343080
Defaults: job-sheets=none, none media=na_letter_8.5x11in sides=one-sided

But I can't figure out how I can add it to my cups AirPrint server. I already tried using the IP address of the Airport Express with lpadmin -p myprinter -E -v "ipp://192.168.1.146/ipp/print" (not sure how I can customize the /ipp/print at the end) and also using the dnssd uri from the previous description without success.
If you have any idea about that, I'll be happy to test it.
Thank you very much.

Find out why and how to fix this error from the cups/error_log:
Unable to encrypt connection: A TLS fatal alert has been received.

i've runned the container on a slow host, and it was failing to setup the printer as the list of driver was not shown..

with more debugging i've found that the lpinfo -m command was returning (after a while of loading...) just lpinfo: success deleting some folder from /usr/lib/cups/driver/ (no matther what folder) allowed me to fix the lpinfo -m command, so basically was a timeout problem listing all installed drivers, stripping out some folder allow you to success... you probably should consider finding a way to enlarge this timeout (i assume the default is 30sec)

I would like to pin a specific image, and update more deliberately, however the current tagging of the docker images makes this not possible since previous images are removed.

Is there any chance of adding version number tags to the docker images are published? Since this is built regularly, perhaps we could add a date tag that is also added to the current image, so that older images are also available for pinning purposes?

I'd like to use the ENV method to create my printers. Unfortunately, the script does not seem to evaluate the ENV variables correctly on initialization of a container, but it does on subsequent restarts. I'm not sure why from reading the startup script, but there seems to be an issue with one of the cupsctl calls, which probably breaks the subshell.

...
.--> CUPS ready
cupsctl: Unable to connect to server: Bad file descriptor
E [01/Nov/2022:05:22:08 +0000] Unable to communicate with avahi-daemon: Daemon not running
===========================================================
The dockerized CUPS instance is now ready for use! The web
interface is available here:
...

whereas on restart the relevant part of the log looks like this:

.--> CUPS ready
localhost - - [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 401 0 - -
localhost - root [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 201 4614 - -
E [01/Nov/2022:19:42:43 +0000] Unable to communicate with avahi-daemon: Daemon not running
localhost - - [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 401 0 - -
localhost - root [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 201 4614 - -
E [01/Nov/2022:19:42:43 +0000] Unable to communicate with avahi-daemon: Daemon not running
localhost - - [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 401 0 - -
localhost - root [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 201 4614 - -
E [01/Nov/2022:19:42:43 +0000] Unable to communicate with avahi-daemon: Daemon not running
localhost - - [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 401 0 - -
localhost - root [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 201 4614 - -
E [01/Nov/2022:19:42:43 +0000] Unable to communicate with avahi-daemon: Daemon not running
localhost - - [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 401 0 - -
localhost - root [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 201 4640 - -
E [01/Nov/2022:19:42:43 +0000] Unable to communicate with avahi-daemon: Daemon not running
localhost - - [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 401 0 - -
localhost - root [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 201 4640 - -
E [01/Nov/2022:19:42:43 +0000] Unable to communicate with avahi-daemon: Daemon not running
localhost - - [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 401 0 - -
localhost - root [01/Nov/2022:19:42:43 +0000] "PUT /admin/conf/cupsd.conf HTTP/1.1" 201 4662 - -
--> adding printers
E [01/Nov/2022:19:42:43 +0000] Unable to communicate with avahi-daemon: Daemon not running
CUPS_LPADMIN_PRINTER1 = lpadmin ...
===========================================================
The dockerized CUPS instance is now ready for use! The web
interface is available here:

The time difference is because the container got recreated by Portainer this morning and I did a manual restart just now.

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couple of updates.

I think will be nice to drop the "Airpint %s @ host" to just %s

                name = tree.find('name')
                name.text = '%s' % (v['printer-info'])

This uses the printer-info which is a human friendly descriptions which is specified in the -d for cups. Maybe we can make this configureable if you want to use name.text = '%s' % (v['printer-info']) or name.text = 'Airprint %s' @ %%h' % (v['printer-info'])

As well as use the correct location field for the note which is shown as location on most devices.

                desc = Element('txt-record')
                desc.text = 'note=%s' % (v['printer-location'])

Tasks

• support ENV configuration
  • webinterface yes/no
  • ssl config
  • per printer: name, location, description, device URI, URL for PPD or model
    • lpadmin command (without .ppd)?
• support binary file through ENV (.ppd) - how?
  • background: it would be great if I did not have to create my own image just to configure my printer...
  • Options:
    • mount directory -> requires users to setup persistent storage... not great
    • install printer on every startup with lpadmin -> nice idea! (and/or maybe download the .ppd?)
    • through ENV (one line, BASE64 encoded?) -> veeery ugly

Decisions/Outcome:

Tasks:

• cleanup code/repository
• structured readme, link to separate examples
  • add badges
• setup and test cloud print

Expected outcome:

• I can try it (along the readme) within 10 minutes and it works

To allow accessing cups web interface on the local network via name cups.host:631

cupsctl ServerName=cups.host

or figure out why automatic discovery does not work

I was wondering if it's possible to customize the "AirPrint" prefix for shared printers.

If possible at all, It would be useful to determine a custom prefix or to be able to enable/disable the prefix at all.

Thanks in advance for any hint on the matter.

Hi to all maintainers!

I like your work! It is well thought through!👍

I have a suggestion for an improvement though:
Some printers need extra drivers, f.i. a few from Canon. The package offered by the vendor is a .sh script which checks some dependencies, installs them, if needed (over apt), and then it installs the driver package (as .deb).
I tried to install this after the container was up and running. I mounted a volume with the extra files and then from inside, I started the script. The problem is that this .sh script will try to restart cups at some point, which doesn't go well and the container crashes. From there on, dpkg is in a not-done state and apt doesn't work either. Every time you would try to resume the dpkg reconfiguration, it would restart cups, which crashes again.....
The next thing I tried (also to make it more automated), was to add a further init-script as a command directive in my docker-compose.yaml file, but this will never be run, because the entrypoint script will run first, and this script will never get a chance to run. At least, this is what happens with my compose version.

Long story short, the dirty workaround was to:

• copy your start-cups.sh and save it in a volume, externally
• overwrite the default entrypoint with my script (by mounting a volume on that path). The script first installs the extra stuff, and finally starts the default start-cups.sh

This works now, but as I mentioned, this is a dirty workaround. Why ? It is a long term issue:
Now I'm stuck with the static start-cups.sh, which doesn't get updated as soon as this gets changes/improvements on github.

I was also thinking about your suggestions in the readme, to create my own Dockerfile and adapt the image as needed, but I'm not a fan of this approach either; for the same Reason: I try to make every docker service updatable. As soon as there are updates online, I want to be able to automatically update them, without any manual intervention on my part (in best case).

Does my train of thought make sense?

So my suggestion is to add to the image some points of customization.

1. One easy solution would be to replace the ENTRYPOINT directive with the CMD directive. Thus, the startup command can be overwritten when starting the container, and we don't have to touch or save the default script from the repo somewhere else. The custom command can than call the default startup script afterwards.
2. Another solution would be to add some ENV variables, that hold the path to the scripts. Those will be evaluated and exectuted in the entry point,. For instance a var named "PRE_INIT_SCRIPT"

BR

• check and define sane defaults
• document what its good for and how its configured

Looking at the DockerFile it seems it uses Eoan otherwise known as Ubuntu 19.10. This version has been end of life since July 2020.
Could the Ubuntu version be updated to a version that is supported.

https://github.com/RagingTiger/docker-cups-airprint/blob/master/Dockerfile#L38-L44

Just a poke as requested:

https://github.com/istopwg/ippsample

Apparently, this is going to be CUPS software you can run on a Windows computer.

Also you might want to look into "print everywhere" which is somehow based on AirPrint.