Caddyfile

{
    admin off
    log {
        output file /app/caddy.log
        format console
        level info
    }
}

{
  pki {
    ca local {
      root_dir /tmp/caddy/pki
    }
  }
}

:3001 {
  reverse_proxy localhost:3000

  route /api/* {
        handle_path /api/* {
            reverse_proxy localhost:3000
        }
    }
}