SameServerEntity Example

same-server-entity-example.yaml

name: "SameServerEntity Example"
location: localhost
services: 
  - type: org.apache.brooklyn.entity.software.base.SameServerEntity
    id: parent
    name: Parent Entity
    children.startable.mode: background_late
    
    brooklyn.children:
    - serviceType: org.apache.brooklyn.entity.software.base.VanillaSoftwareProcess
      id: item-A
      name: A
    
      launch.command: |
        echo hello | nc -l 4321 &
        echo $! > $PID_FILE
        echo "A: launch.command executed"

      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 /tmp/vanilla.pid; }
    
    - serviceType: org.apache.brooklyn.entity.software.base.VanillaSoftwareProcess
      id: item-B
      name: B
    
      launch.command: |
        echo hello | nc -l 4322 &
        echo $! > $PID_FILE
        echo "B: launch.command executed"

      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 /tmp/vanilla.pid; }

See org.apache.brooklyn.entity.software.base.SoftwareProcess.ChildStartableMode for the different child.startable.mode options.

thanks!