PKG ExpressJS example

application.properties

PORT=4000
API_PROTOCOL=https
API_HOST=localhost
API_PORT=4001
API_VERSION=v1

application.properties.default

PORT=3000
API_PROTOCOL=http
API_HOST=localhost
API_PORT=3001
API_VERSION=v1

index.js

/*Logging Setup*/
const log4js = require("log4js");
let logger = log4js.getLogger();
logger.level = 'ALL';

/* Load application properties */
const properties = require('dotenv').config({ path: './application.properties' })
if (properties.error) {
    // console.log(properties.error)
    logger.warn('No application.properties file found')
    logger.info('Use default application.properties')
    require('dotenv').config({ path: './application.properties.default' })
    //   throw result.error
}

/*Logs rotation*/
const rfs = require("rotating-file-stream");
const accessLogStream = rfs.createStream("access.log", {
    size: "10M", // rotate every 10 MegaBytes written
    interval: "1d", // rotate daily
    // compress: "gzip" // compress rotated files
    path: './logs'
});


/*Server Setup*/
const express = require('express')
const app = express()
const morgan = require('morgan')
const port = process.env.PORT || 3000
const API = `${process.env.API_PROTOCOL}://${process.env.API_HOST}:${process.env.API_PORT}/${process.env.API_VERSION}`

app.use(morgan('combined', { stream: accessLogStream }))

app.get('/', (req, res) => {
    logger.trace("Entering cheese testing");
    logger.debug("Got cheese.");
    logger.info(API);
    logger.warn("Cheese is quite smelly.");
    logger.error("Cheese is too ripe!");
    logger.fatal("Cheese was breeding ground for listeria.");
    res.send(`Hello World! ${API}`)
})

app.listen(port, () => {
    logger.info(`App listening on port ${port}`)
})

pkg.txt

npm i -g pkg
pkg -t node16-macos-x64 -o ../app --compress GZip index.js

#nohup
nohup ./app > app.log 2> app.err

service

#!/bin/bash
SERVICE_NAME=myservice
APP_PATH=$PWD
LOGS_PATH=$APP_PATH/logs
case "$1" in
    start)
        echo "Starting $SERVICE_NAME..."
        mkdir -p $LOGS_PATH
        nohup $APP_PATH/app 1> $LOGS_PATH/app.log 2> $LOGS_PATH/app-errors.log &
        echo $!>$APP_PATH/$SERVICE_NAME.pid
        echo $SERVICE_NAME started, pid=`cat $APP_PATH/$SERVICE_NAME.pid`
        # echo $!>/var/run/$SERVICE_NAME.pid
        # echo $SERVICE_NAME started, pid=`cat /var/run/$SERVICE_NAME.pid`
    ;;
    stop)
        echo "Stopping $SERVICE_NAME..."
        kill `cat $APP_PATH/$SERVICE_NAME.pid`
        rm $APP_PATH/$SERVICE_NAME.pid
    ;;
    restart)
        $0 stop
        $0 start
    ;;
    status)
        if [ -e $APP_PATH/$SERVICE_NAME.pid ]; then
            echo $SERVICE_NAME is running, pid=`cat $APP_PATH/$SERVICE_NAME.pid`
        else
            echo $SERVICE_NAME is NOT running
            exit 1
        fi
    ;;
    *)
        echo "Usage: $0 {start|stop|status|restart}"
esac

exit 0