collectd exec plugin bird

plugin_exec_bird.sh

#!/bin/sh
set -e

#HOSTNAME="${COLLECTD_HOSTNAME:-`hostname -f`}" # RH / CentOs
HOSTNAME="${COLLECTD_HOSTNAME:-`hostname`}"     # Debian/Ubuntu
INTERVAL="${COLLECTD_INTERVAL:-60}"
INTERVAL="${INTERVAL%.*}"

PATH=/sbin:/bin:/usr/sbin:/usr/bin

PLUGIN=bird

_sleep() { # sleep variants
  local t
  case "$1" in
      *s ) t="${1%s}" ;;
      *m ) t=$(( ${1%m} * 60 )) ;;
      *h ) t=$(( ${1%h} * 3600 )) ;;
      *d ) t=$(( ${1%d} * 86400 )) ;;
      * ) t="$1" ;;
  esac

  #read -t $t tmp < /dev/tty1
  #sleep $t
  /bin/sleep $t
}

putval() {
  local key="$1"
  local value="$2"
  local key_instance="$3"
  local plugin_instance="$4"
  echo "PUTVAL ${HOSTNAME}/${PLUGIN}${plugin_instance:+-$plugin_instance}/gauge-${key_instance:+$key_instance-}$key interval=$INTERVAL N:$value"
}

# 1. itereate over all address familiies
# 2. itereate over all protocol is BGP peer Established or not
# 3. count all routes of each BGP protocol

while :; do
  for familiy in ipv4 ipv6; do
    birdc="birdc${familiy#ipv}"
    which "$birdc" > /dev/null 2>&1 || \
      birdc="birdc${familiy#ipv4}"
    which "$birdc" > /dev/null 2>&1 || \
      birdc="birdcl${familiy#ipv}"

  ## 1.  is bird running?
    running=0
    $birdc -v -r show status > /dev/null 2>&1 && \
        running=1
    putval running "$running" "" "$familiy"
    [ "$running" = 1 ] || \
      continue

  ## 2.  iterate of protocols of type BGP
    $birdc -v -r show protocols | while read name proto table state since info; do
      case "$proto" in
        BGP ) ;;
        * ) continue ;;
      esac

      established=0
      if [ "$info" = "Established" ]; then
        established=1
      fi
      putval established "$established" "$name" "$familiy"

  ## 3. get information about routes
      #routes="$($birdc -v -r show route protocol $name | grep -v ^00 || :)"
      route_count="$($birdc -v -r show route protocol $name | grep -v ^00 | wc -l || :)"
      putval route_count "$route_count" "$name" "$familiy"
    done
  done

  _sleep "$INTERVAL"
done

Example output for collectd:

PUTVAL example.com/bird-ipv4/gauge-running interval=60 N:1
PUTVAL example.com/bird-ipv4/gauge-bgp_as2324-established interval=60 N:1
PUTVAL example.com/bird-ipv4/gauge-bgp_as2324-route_count interval=60 N:5
PUTVAL example.com/bird-ipv4/gauge-bgp_as65111-established interval=60 N:1
PUTVAL example.com/bird-ipv4/gauge-bgp_as65111-route_count interval=60 N:0
PUTVAL example.com/bird-ipv4/gauge-bgp_as65112-established interval=60 N:1
PUTVAL example.com/bird-ipv4/gauge-bgp_as65112-route_count interval=60 N:1
PUTVAL example.com/bird-ipv4/gauge-bgp_as65112-established interval=60 N:1
PUTVAL example.com/bird-ipv4/gauge-bgp_as65112-route_count interval=60 N:1
PUTVAL example.com/bird-ipv4/gauge-bgp_as65110-established interval=60 N:0
PUTVAL example.com/bird-ipv4/gauge-bgp_as65110-route_count interval=60 N:0
PUTVAL example.com/bird-ipv4/gauge-bgp_as65113-established interval=60 N:1
PUTVAL example.com/bird-ipv4/gauge-bgp_as65113-route_count interval=60 N:1
PUTVAL example.com/bird-ipv6/gauge-running interval=60 N:0