influxping — report ping results to InfluxDB

influxping

#!/bin/bash

# MIT License
#
# Copyright (c) 2016 Maciej Gamrat
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

usage() {
  cat <<EOF 1>&2
NAME
    $(basename $0) - report ping results to InfluxDB

SYNOPSIS
    $(basename $0) [OPTION]... HOST...

DESCRIPTION
    Ping specified HOST(s) and report times to InfluxDB instance.

    --db <string>
        InfluxDB database name to write to. Defaults to "netstats".

    --host <string>
        Host or IP address. Defaults to "localhost".

    --port <number>
        Host port number to use. Defaults to 8086.

    --proto <string>
        Protocol to use. Defaults to "http".

    --series <string>
        Measurement series name. Defaults to "ping".

    -h, --help
        Displays usage inforation.

AUTHOR
    Written by Maciej Gamrat <influxping@gamrat.it>.
EOF
  exit 2
}

if [ $# -eq 0 ]; then
  usage
fi

proto="${INFLUXPING_PROTO:-http}"
host="${INFLUXPING_HOST:-localhost}"
port="${INFLUXPING_PORT:-8086}"
db="${INFLUXPING_DB:-netstats}"
series="${INFLUXPING_SERIES:-ping}"

while true; do
  case "$1" in
    -h|--help)
      usage
      ;;
    --proto)
      proto="$2"
      shift 2
      ;;
    --host)
      host="$2"
      shift 2
      ;;
    --port)
      port="$2"
      shift 2
      ;;
    --db)
      db="$2"
      shift 2
      ;;
    --series)
      series="$2"
      shift 2
      ;;
    --)
      shift
      break
      ;;
    *)
      break
      ;;
  esac
done

if [ $# -eq 0 ]; then
  usage
fi

while true; do
  for HOST in "$@"; do (
    output=$(ping -c1 $HOST)
    status=$?
    if [ $status -eq 0 ]; then
      ms=$(grep -Eo 'time=[0-9.]+' <<< "$output" | cut -d'=' -f2)
      value_pair=",value=$ms"
    fi
    line="$series,host=$HOST status=${status}i${value_pair}"
    curl -XPOST "$proto://$host:$port/write?db=$db" --data-binary "$line" &&
    echo "$line"
  ) done
  sleep 1
done