Snippet for BSConfig.pm selector of suitable OBS workers per job

BSConfig.pm

# Add-on logic for OBS server config to allow only certain hosts to build certain projects

# For specific build constraints, for example to require a specific
# security level of the workers.
# Return 0 (false) if this worker is not suitable for this job.
# Return 1 (true) to allow execution of this job on this worker.
# Used from bs_dispatch via
#   { next if !$BSConfig::dispatch_constraint->($ic->{$job}, $workerinfo{$idle}); }
#

use Data::Dumper;
our $dispatch_constraint = sub {
  my ($job, $worker) = @_;
#
### Example to "require a specific security level of the workers"
### by using a hostlabel:
###  return 0 unless (grep {$_ eq "OBS_WORKER_SECURITY_LEVEL_1"} @{$worker->{'hostlabel'} || []});
  warn("Considering worker labels: " . Dumper(@{$worker->{'hostlabel'} || []}) . " against job: " . Dumper($job) );
### UPDATE: See data dumps below, can match by {'file'} for these usecases
  if ($job->{'package'} =~ m/preinstall/i ) {
    return 0 unless (grep {$_ eq "preinstallimage"} @{$worker->{'hostlabel'} || []});
    warn("Matched preinstallimage job on suitable worker");
  } elsif ($job->{'package'} =~ m/-image/i || $job->{'repository'} =~ m/_Images$/ ) {
    return 0 unless (grep {$_ eq "simpleimage"} @{$worker->{'hostlabel'} || []});
    warn("Matched simpleimage job on suitable worker");
  } elsif (grep {$_ eq "preinstallimage" || $_ eq "simpleimage"} @{$worker->{'hostlabel'} || []}) {
    # image jobs were assigned above for such worker, so this is a non-image job...
    return 0 unless (grep {$_ eq "anybuild"} @{$worker->{'hostlabel'} || []});
    warn("Matched anybuild job on suitable worker despite it also handling image builds");
  } else {
    warn("Defaulted to allowing anything on this worker");
  }
  return 1;
};

1;

########################

Example data dump:



Considering worker labels: $VAR1 = 'simpleimage';
$VAR2 = 'preinstallimage';
 against job: $VAR1 = {
          'readytime' => 1600192033,
          'needed' => '0',
          'reposerver' => 'http://obs.local:5252',
          'srcmd5' => 'ba0d7623caab900dfb019183d59a387f',
          'package' => 'ovadevel-image',
          'project' => 'productproject:master:proprietary:images',
          'revtime' => 1600191947,
          'debuginfo' => '1',
          'disturl' => 'obs://local/productproject:master:proprietary:images/Debian_10.0_Images/ba0d7623caab900dfb019183d59a387f-ovadevel-image',
          'bcnt' => '1',
          'verifymd5' => 'ba0d7623caab900dfb019183d59a387f',
          'path' => [
                    {
                      'project' => 'productproject:master:proprietary:images',
                      'repository' => 'Debian_10.0_Images',
                      'server' => 'http://obs.local:5252'
                    },
                    {
                      'server' => 'http://obs.local:5252',
                      'repository' => 'Debian_10.0',
                      'project' => 'productproject:master:proprietary'
                    },
                    {
                      'project' => 'productproject:master',
                      'repository' => 'Debian_10.0',
                      'server' => 'http://obs.local:5252'
                    },
                    {
                      'server' => 'http://obs.local:5252',
                      'project' => 'Pool:master',
                      'repository' => 'Debian_10.0'
                    },
                    {
                      'server' => 'http://obs.local:5252',
                      'repository' => 'Debian_10.0',
                      'project' => 'Pool:PreinstallImages'
                    },
                    {
                      'repository' => 'standard',
                      'project' => 'Debian:10.0',
                      'server' => 'http://obs.local:5252'
                    }
                  ],
          'file' => 'simpleimage',
          'job' => 'productproject:master:proprietary:images::Debian_10.0_Images::ovadevel-image-ba0d7623caab900dfb019183d59a387f',
          'versrel' => '2020.09.15-17.45.47-241',
          'arch' => 'x86_64',
          'reason' => 'source change',
          'srcserver' => 'http://obs.local:5352',
          'release' => '241.1',
          'repository' => 'Debian_10.0_Images',
          'rev' => '241'
        };
Matched simpleimage job on suitable worker at BSConfig.pm line 232.
2020-09-15 19:48:23: assignjob x86_64/productproject:master:proprietary:images::Debian_10.0_Images::ovadevel-image-ba0d7623caab900dfb019183d59a387f -> x86_64:obs-imagebuilder:4