Munin contributed plugins

: << =cut

=head1 NAME

lxc-lib -- some base functions for the lxc_* plugins

=head1 AUTHOR

schaefer@alphanet.ch

=head1 LICENSE

GPLv3

=cut

lxcpath=${lxcpath:-/var/lib/lxc}

function active_guests {

   local g active i ok

   for g in $(lxc-ls | sort -u)

   do

      # handle optional exclude list in $1

      ok=1

      for i in $1

      do

         if [ "$i" = "$g" ]; then

            ok=0

         fi

      done

      if [ $ok = 1 ]; then

         if lxc-info -n $g 2>&1 | grep -qs RUNNING; then

            active="$active $g"

         fi

      fi

   done

   echo $active

}

function lxc_cgroup {

   # lxc3

   lxc-cgroup -o /dev/stdout -l INFO $* | sed 's/^.*lxc_cgroup.c:main:[0-9][0-9]* - //'

   # lxc < 3

#   lxc-cgroup $*

}

function lxc_clean_fieldname {

   # workaround for bug leaving out the first number

   echo $(clean_fieldname ${1::1}$1)

}

function lxc_netdev {

   local g=$1 dev

   if [ -f $lxcpath/$g/config ]; then

      # lxc3

      egrep '^lxc.net.0.veth.pair' $lxcpath/$g/config | awk '{print $NF;}'

      # lxc < 3

#      egrep '^lxc.network.veth.pair' $lxcpath/$g/config | awk '{print $NF;}'

   else

      echo unknown

   fi

}