falcon-named.sh

#!/bin/bash
# send named metrics to falcon-agent

RNDC_BIN=/usr/sbin/rndc
STATS='/var/named/data/named_stats.txt'


rm -f $STATS
if ! $RNDC_BIN stats; then
    exit 1
fi
if ! [ -s ${STATS} ]; then
    echo "${STATS} does not exist!" >&2
    exit 1
fi
named_total_query=$(awk '/ QUERY/ {print $1}' $STATS)
named_tcp_request=$(awk '/ TCP requests received/ {print $1}' $STATS)
named_total_response=$(awk '/[0-9] responses sent/ {print $1}' $STATS)
named_success_query=$(awk '/queries resulted in successful/ {print $1}' $STATS)
named_dropped_query=$(awk '/ queries dropped/ {print $1}' $STATS)
[[ -n $named_total_query ]] || named_total_query=0
[[ -n $named_tcp_request ]] || named_tcp_request=0
[[ -n $named_total_response ]] || named_total_response=0
[[ -n $named_success_query ]] || named_success_query=0
[[ -n $named_dropped_query ]] || named_dropped_query=0

endpoint=$(hostname)
timestamp=$(date '+%s')

data="[{\"endpoint\":\"$endpoint\",\"tags\":\"\",\"timestamp\":$timestamp,\"metric\":\"named.total_query\",\"value\":$named_total_query,\"counterType\":\"COUNTER\",\"step\":60},{\"endpoint\":\"$endpoint\",\"tags\":\"\",\"timestamp\":$timestamp,\"metric\":\"named.tcp_request\",\"value\":$named_tcp_request,\"counterType\":\"COUNTER\",\"step\":60},{\"endpoint\":\"$endpoint\",\"tags\":\"\",\"timestamp\":$timestamp,\"metric\":\"named.total_response\",\"value\":$named_total_response,\"counterType\":\"COUNTER\",\"step\":60},{\"endpoint\":\"$endpoint\",\"tags\":\"\",\"timestamp\":$timestamp,\"metric\":\"named.success_query\",\"value\":$named_success_query,\"counterType\":\"COUNTER\",\"step\":60},{\"endpoint\":\"$endpoint\",\"tags\":\"\",\"timestamp\":$timestamp,\"metric\":\"named.dropped_query\",\"value\":$named_dropped_query,\"counterType\":\"COUNTER\",\"step\":60}]"

curl -X POST -H "Content-Type: application/json" -d "$data" http://127.0.0.1:1988/v1/push >/dev/null 2>&1 &