waiting for http

wait_for_http_200_ok.sh

function wait_for_http_200_ok(){
    URL="$1"
    timeout="$((SECONDS+60))"
    while true; do
        HTTP_CODE=$( curl --silent --write-out %{http_code} --output /dev/null ${URL} )
        [[ "200" = "$HTTP_CODE" ]] && break
        [[ "${SECONDS}" -ge "${timeout}" ]] && echo "timed out waiting for ${URL}" && exit 1
        sleep 1
    done
}