guide/blueprints/example_yaml/vanilla-bash-netcat-more-commands.yaml

name: Netcat Example with Explicit Check and Stop Commands
location: localhost
services:
- type: org.apache.brooklyn.entity.software.base.VanillaSoftwareProcess
  name: Simple Netcat Server
  brooklyn.config:
    launch.command: |
      echo hello | nc -l 4321 &
      echo $! > $PID_FILE

    # The following overrides demonstrate the use of a custom shell environment as well as
    # check-running and stop commands. These are optional; default behavior will "do the
    # right thing" with the pid file automatically.

    shell.env:
      CHECK_MARKER: "checkRunning"
      STOP_MARKER: "stop"
    checkRunning.command: |
      echo $CHECK_MARKER >> DATE && test -f "$PID_FILE" && ps -p `cat $PID_FILE` >/dev/null
    stop.command: |
      echo $STOP_MARKER  >> DATE && test -f "$PID_FILE" && { kill -9 `cat $PID_FILE`; rm $PID_FILE; }