test-web.sh

#!/bin/bash

# called by influx-mon.sh which is called by cron every minute

curloutput=$(curl -A "influx-mon" -ss -L --connect-timeout 5 -w "\n%{http_code}" $1)
exitcode=$?
body=$(echo "$curloutput" | head -n -1)
httpcode=$(echo "$curloutput" | tail -n 1)

if [ $exitcode -ne 0 ]; then
  echo down
  exit 1
else
  if [[ $httpcode = "200" ]]; then
    if [[ $body = *"$2"* ]]; then
      echo up and matched
      exit 0
    else
      echo up but not matched
      exit 2
    fi
  else
    echo HTTP response was $httpcode
    exit 3
  fi
fi