Generic service controller for init.d

general_servicectl_initd.sh

#! /bin/sh
# /etc/init.d/pygeoapi

PROGRAMNAME=pygeoapi

check_service() {
  ps cax | grep $PROGRAMNAME > /dev/null
  if [ $? -eq 0 ]; then
    return 0
  else
    return 1
  fi
}

start_service() {
  if check_service 0; then
    echo "* $PROGRAMNAME is already running"
    return
  fi
  echo "* Starting $PROGRAMNAME"
  $PROGRAMNAME serve &
}

stop_service() {
  if check_service; then
    echo "* Stopping $PROGRAMNAME"
    pkill -f $PROGRAMNAME || errcode=$?
    return 0
  else
    echo "* $PROGRAMNAME is already stopped"
    return 1
  fi
}

case "$1" in
  start)
    start_service
    ;;
  stop)
    stop_service
    ;;
  restart)
    stop_service
    start_service
    ;;
  status)
    if check_service; then
      echo "* $PROGRAMNAME is running"
    else
      echo "* $PROGRAMNAME is stopped"
    fi
    ;;
  *)
    echo "Usage: $PROGRAMNAME {start|stop|restart|status}"
    exit 1
    ;;
esac

exit 0