ngcpcfg/lib/get_default_pingnodes

[%
# vi: ft=tt2

# Returns a list of IPs to ping.
#
# @param argv.dns       A boolean selecting whether to add DNS IPs.
# @return out           List of pingnodes.
-%]
[% PERL -%]
  my $gateway = (split(" ", `ip route | grep default`))[2];
  my @nodes = ($gateway);

[% IF argv.dns == 'yes' %]
  my @dnsnodes = (split(" ", `grep -v '^#' /etc/resolv.conf | grep nameserver | cut -f2 -d' '|xargs`));

  foreach my $host (@dnsnodes) {
    my $res = `/bin/ping -c 1 -s 164 $host -W 1 2>/dev/null`;
    if ($res =~ '1 received') {
      if ($res =~ 'truncated') {
        print "#$host reply truncated\n";
      } else {
        push(@nodes, $host);
      }
    } else {
      print "# $host error\n";
    }
  }
[% END %]
  $stash->set(out => \@nodes);
[% END -%]