Caddy Port Forward

port_forward.sh

#!/usr/bin/env bash
set -euo pipefail

if [ $# -lt 1 ]; then
  echo "Usage: $0 portin1|output1 [portin2|output2 ...]"
  exit 1
fi

for pair in "$@"; do
  # Split on the '|' delimiter into an array of two elements
  IFS='|' read -r portin output <<< "$pair"    #  [oai_citation:0‡stackoverflow.com](https://stackoverflow.com/questions/918886/how-do-i-split-a-string-on-a-delimiter-in-bash?utm_source=chatgpt.com)

  if [[ -z $portin || -z $output ]]; then
    echo "Invalid pair: '$pair'. Must be in the form portin|output"
    continue
  fi

  echo "Starting proxy from :${portin} to ${output}…"
  # Launch each proxy in the background (remove '&' if you want sequential/blocking)
  caddy reverse-proxy --from ":${portin}" --to "${output}" &
done

wait
echo "All caddy reverse-proxy instances are running."