Curl Healthcheck

curl-healthcheck.sh

#!/bin/bash

# A basic healthcheck to determine when a URL is unavailable, and for how long.

[ -z "$1" ] && { echo "You must specify the URL to check" >&2; exit 1; }

URL="$1"

SLEEP="1"
CURL_CONNECT_TIMEOUT="1"
CURL_MAX_TIME="2"

while sleep "$SLEEP"; do
  curl --write-out "$(date +%T) -- %{http_code} -- %{time_total}\n" --silent --connect-timeout "$CURL_CONNECT_TIMEOUT" --max-time "$CURL_MAX_TIME" --output /dev/null "$URL"
done