daemonize service

service.erb

#!/bin/sh

# template inputs:
#   @service_name: name of the service
#   @service_cwd: working directory for running the service
#   @service_cmd: command to run the service

start () {
    echo -n "Starting <%= @service_name %>..."

    # Start daemon
    daemon --chdir='<%= @service_cwd %>' --command '<%= @service_cmd %>' --respawn --output=/var/log/<%= @service_name %>/output.log --name=<%= @service_name %> --user=<%= @service_user %> --verbose

    RETVAL=$?
    if [ $RETVAL = 0 ]
    then
        echo "done."
    else
        echo "failed. See error code for more information."
    fi
    return $RETVAL
}

stop () {
    # Stop daemon
    echo -n "Stopping <%= @service_name %>..."

    daemon --stop --name=<%= @service_name %>  --user=<%= @service_user %> --verbose
    RETVAL=$?

    if [ $RETVAL = 0 ]
    then
        echo "Done."
    else
        echo "Failed. See error code for more information."
    fi
    return $RETVAL
}


restart () {
    status
    RETVAL=$?
    if [ $RETVAL = 0 ]
    then
        stop
        sleep 2
    fi
    start
}


status () {
    # Report on the status of the daemon
    daemon --running --verbose --user=<%= @service_user %> --name=<%= @service_name %>
    return $?
}


case "$1" in
    start)
        start
    ;;
    status)
        status
    ;;
    stop)
        stop
    ;;
    restart)
        restart
    ;;
    *)
        echo $"Usage: <%= @service_name %> {start|status|stop|restart}"
        exit 3
    ;;
esac

exit $RETVAL