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arc-vomsac-check(8)


NAME

   arc-vomsac-check - ARC VOMS AC-based queue policy enforcing plugin

DESCRIPTION

   ARC  VOMS  AC-based  queue  policy  enforcing  plugin perfors per-queue
   authorization based on information stored in VOMS AC.

SYNOPSIS

   arc-vomsac-check  [-N]  -P  <user   proxy>   -L   <A-REX   local>   [-c
   <configfile>] [-d <loglevel>]

OPTIONS

   -N     treat absence of VOMS AC as allowed access (deny by default)

   -P user proxy
          path to user proxy certificate file to get VOMS AC from

   -L A-REX local
          A-REX jobstatus .local file (used to determine submission queue)

   -c configfile
          plugin   configuration  file  (/etc/arc.conf  will  be  used  by
          default)

   -d loglevel
          logging level from 0(ERROR) to 5(DEBUG)

GETTING A-REX TO WORK WITH PLUGIN

   You must attach plugin as handler for ACCEPTED state:

   authplugin="ACCEPTED   60   /opt/arc/libexec/arc/arc-vomsac-check    -L
   %C/job.%I.local -P %C/job.%I.proxy"

CONFIGURATION

   Queue policies need to be written into plain text configuration file of
   the same format as arc.conf.  The plugin expects several  configuration
   blocks for every queue identified by [queue] or [queue/name] section.

   The  attribute  value  pairs identified by 'ac_policy' keyword within a
   queue configuration block represent rules for allowing or denying users
   to utilize queue. These rules are processed in order of specification.

   The  first  rule  that  matches  the  VOMS AC presented by a user stops
   further processing of remaining rules in the  block.  If  no  one  rule
   mathes  VOMS AC, access is denied.  If no 'ac_policy' rules supplied in
   the queue block, access is granted.

   Matching rules has the following format:

    ac_policy="[+/-]VOMS: <mathing FQAN>"

   Prepending '+' indicate positive  match  (users  with  FQAN  match  are
   allowed).   Prepending  '-'  or '!' indicate negative match (users with
   FQAN match are prohibited).  Without  any  prefix  character,  rule  is
   treated as positive match.

   FQAN  format  can  be  specified  either  in ARC format or general VOMS
   format: '/VO=students/Group=physics/Role=production'  is  the  same  as
   '/students/physics/Role=production'                                  or
   '/students/Group=physics/Role=production/Capability=NULL' or any  other
   combinations.    Regalar   expressions  syntax  can  be  used  in  FQAN
   specification.

EXAMPLE CONFIGURATION

    [queue/general]
    ac_policy="-VOMS: /students/Role=production"
    ac_policy="-VOMS: /students/Group=nosubmission"
    ac_policy="VOMS: /VO=students"

    [queue]
    name="production"
    ac_policy="VOMS: /students/Role=production"
    ac_policy="-VOMS: /badvo"
    ac_policy="VOMS: /.*/Role=production"

   In the example configuration, queue "general" can NOT  be  used  by  VO
   "students"   users   with   Role   "production"   and   VO   "students"
   "nosubmission" Group. It CAN  be  used  by  any  other  members  of  VO
   "students".

   Queue  "production"  allow  access  to  VO  "students"  users with Role
   "production", prohibit some VO "badvo" and allow any VO users with Role
   "production".  First rule may be omitted due to common regex.

AUTHOR

   Andrii Salnikov <manf at grid dot org dot ua>



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