add Dockerfile setup for Backend

Dockerfile

@@ -0,0 +1,20 @@
+# Dockerfile Backend
+FROM node:18
+
+# Menentukan Working Dir
+WORKDIR /app
+
+# COPY file package.json dan package-lock.json
+COPY package*.json ./
+
+# Install depedencies
+RUN npm Install
+
+# Copy semua file ke Repo Container
+COPY . . 
+
+# EKSPOS port untuk Backend
+EXPOSE 5000
+
+# Menjalankan Server
+CMD [ "node", "server.js" ]

server.js

@@ -1,41 +1,39 @@
-const mongoose = require("mongoose");
+const mongoose = require('mongoose');
 
 // Make sure we are running node 10.0+
-const [major, minor] = process.versions.node.split(".").map(parseFloat);
+const [major, minor] = process.versions.node.split('.').map(parseFloat);
 if (major < 10 || (major === 10 && minor <= 0)) {
-  console.log(
-    "Please go to nodejs.org and download version 10 or greater. 👌\n "
-  );
-  process.exit();
+	console.log('Please go to nodejs.org and download version 10 or greater. 👌\n ');
+	process.exit();
 }
 
 // import environmental variables from our variables.env file
-require("dotenv").config({ path: ".variables.env" });
+require('dotenv').config({ path: '.variables.env' });
 
 // Connect to our Database and handle any bad connections
 // mongoose.connect(process.env.DATABASE);
 
 mongoose.connect(process.env.DATABASE, {
-  useNewUrlParser: true,
-  useUnifiedTopology: true,
-  useFindAndModify: false,
-  useCreateIndex: true,
+	useNewUrlParser: true,
+	useUnifiedTopology: true,
+	useFindAndModify: false,
+	useCreateIndex: true,
 });
 mongoose.Promise = global.Promise; // Tell Mongoose to use ES6 promises
-mongoose.connection.on("error", (err) => {
-  console.error(`🚫 Error → : ${err.message}`);
+mongoose.connection.on('error', (err) => {
+	console.error(`🚫 Error → : ${err.message}`);
 });
 
-const glob = require("glob");
-const path = require("path");
+const glob = require('glob');
+const path = require('path');
 
-glob.sync("./models/*.js").forEach(function (file) {
-  require(path.resolve(file));
+glob.sync('./models/*.js').forEach(function (file) {
+	require(path.resolve(file));
 });
 
 // Start our app!
-const app = require("./app");
-app.set("port", process.env.PORT || 80);
-const server = app.listen(app.get("port"), () => {
-  console.log(`Express running → On PORT : ${server.address().port}`);
+const app = require('./app');
+app.set('port', process.env.PORT || 80);
+const server = app.listen(app.get('port'), () => {
+	console.log(`Express running → On PORT : ${server.address().port}`);
 });