socat server user data - example request: curl localhost/3

amazon-linux-socat-server.sh

# inspired by https://jameshfisher.com/2018/12/31/how-to-make-a-webserver-with-netcat-nc/
#!/bin/bash
yum install -y socat
socat TCP4-LISTEN:${PORT:-80},fork SYSTEM:' \
  read -r line \
  read -r _ workload _ <<< "$line" \
  workload=${workload:1}
  [ ! -z "$workload" ] && timeout $workload yes > /dev/null \
  echo HTTP/1.0 200 \
  echo Content-Type\: text/plain \
  echo \
  echo Response from $(hostname) with ${workload:-0} secs workload at $(date '+%s.%N')'