infra/roles/cups/templates/cupsd.conf.j2

LogLevel warn
PageLogFormat
MaxLogSize 0
ErrorPolicy retry-job
# Allow remote access
Port 631
Listen /run/cups/cups.sock
#Listen localhost:631
DefaultPaperSize A4
Browsing On
DefaultAuthType None
WebInterface Yes
IdleExitTimeout 60

#DefaultShared yes

{% set domain = inventory_hostname.split('.')[1:] | join('.') %}
DNSSDHostName printer.{{ domain }}
# This is where to send the advertisement, not what to advertise
#BrowseAddress printer.{{ domain }}
#BrowseProtocol all
BrowseProtocol dnssd
BrowseLocalProtocols dnssd
ServerAlias *
ServerName printer.{{ domain }}

{#
Browsing No
# BrowseAddress printer.{{ inventory_hostname.split('.')[1:] | join('.') }}
BrowseLocalProtocols dnssd

# we use nginx and authelia, dont need cups' auth system
# https://anthe.studio/blog/en/cups-nginx-reverse-proxy
#DefaultAuthType Basic
#
 #}

<Location />
  # Allow shared printing...
  Order allow,deny
  Allow all
  #Order allow,deny
  #Allow @LOCAL
</Location>
<Location /admin>
  Order allow,deny
  Allow @LOCAL
</Location>

<Location /admin/conf>
  AuthType Default
  #Allow @LOCAL
  Require user @SYSTEM
  #Order allow,deny
</Location>

<Location /admin/log>
  AuthType Default
  Require user @SYSTEM
  #Order allow,deny
  #Allow @LOCAL
</Location>

<Policy default>
  JobPrivateAccess default
  JobPrivateValues default
  SubscriptionPrivateAccess default
  SubscriptionPrivateValues default

  <Limit Create-Job Print-Job Print-URI Validate-Job>
    Order deny,allow
  </Limit>

  <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document>
    #Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>

  <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default CUPS-Get-Devices>
    AuthType Default
    #Require user @SYSTEM
    Allow @LOCAL
    Order deny,allow
  </Limit>

  <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs>
    AuthType Default
    #Require user @SYSTEM
    Allow @LOCAL
    Order deny,allow
  </Limit>

  <Limit Cancel-Job CUPS-Authenticate-Job>
    #Require user @OWNER @SYSTEM
    Allow @LOCAL
    Order deny,allow
  </Limit>

  <Limit All>
    Allow @LOCAL
    Order deny,allow
  </Limit>
</Policy>

<Policy authenticated>
  JobPrivateAccess default
  JobPrivateValues default
  SubscriptionPrivateAccess default
  SubscriptionPrivateValues default

  <Limit Create-Job Print-Job Print-URI Validate-Job>
    AuthType Default
    Order deny,allow
  </Limit>

  <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document>
    AuthType Default
    #Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>

  <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
    AuthType Default
    #Require user @SYSTEM
    Order deny,allow
  </Limit>

  <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>

  <Limit Cancel-Job CUPS-Authenticate-Job>
    AuthType Default
    #Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>

  <Limit All>
    Order deny,allow
  </Limit>
</Policy>

<Policy kerberos>
  JobPrivateAccess default
  JobPrivateValues default
  SubscriptionPrivateAccess default
  SubscriptionPrivateValues default

  <Limit Create-Job Print-Job Print-URI Validate-Job>
    AuthType Negotiate
    Order deny,allow
  </Limit>

  <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document>
    AuthType Negotiate
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>

  <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>

  <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs>
    AuthType Default
    Require user @SYSTEM
    Order deny,allow
  </Limit>

  <Limit Cancel-Job CUPS-Authenticate-Job>
    AuthType Negotiate
    Require user @OWNER @SYSTEM
    Order deny,allow
  </Limit>

  <Limit All>
    Order deny,allow
  </Limit>
</Policy>