portserve - simple script used to test haproxy healthcheck settings

portserve

#!/bin/bash

if [[ "$2" ]]; then
    msg="serving port $1"
    size=$( echo "$msg" | wc -c )
    read request
    while /bin/true; do
        read x
        if [[ "$x" == "" ]]; then
            break
        fi
    done
    case "$request" in
        */check* )
            if [[ -e "/tmp/down-$1" ]]; then
                echo 'HTTP/1.0 500 Server Error'
                echo 'Content-type: text/plain'
                echo
                echo "DOWN"
            else
                echo 'HTTP/1.0 200 OK'
                echo 'Content-type: text/plain'
                echo
                echo "UP"
            fi
            ;;
        * )
            echo 'HTTP/1.0 200 OK'
            echo 'Content-type: text/plain'
            echo 'Content-length: '"$size"
            echo 'Connection: close'
            echo 
            echo "$msg"
            ;;
    esac
elif [[ "$1" ]]; then
    socat -T 1 -d -d tcp-l:$1,reuseaddr,fork,crlf exec:"$0 $1 http"
else
    for port in 9001 9002 9003 9004; do
        "$0" "$port" &
    done
    read
    killall socat
fi