Update Section_05/main.sh, Section_05/systemd.sh, Section_05/app.js, Section_05/test-node-process.service

Section_05/app.js

@@ -0,0 +1,14 @@
+const http = require('http');
+
+const hostname = '127.0.0.1';
+const port = 5000;
+
+const server = http.createServer((req, res) => {
+  res.statusCode = 200;
+  res.setHeader('Content-Type', 'text/plain');
+  res.end('Hello World! 🐧\n');
+});
+
+server.listen(port, hostname, () => {
+  console.log(`Server running at http://${hostname}:${port}/`);
+});

Section_05/systemd.sh

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+#!/bin/bash
+
+# Install NodeJS
+curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
+sudo apt-get install -y nodejs
+
+# Place app.js
+cd ~/
+mkdir tmpNodeApp/
+cd tmpNodeApp/
+nano app.js
+
+# Start a node process
+node app.js
+
+# Check to see if it's working properly in another shell
+curl http://localhost:5000
+sudo lsof -i -P -n | grep 5000
+
+# Stop process, perform check again
+
+# Create the service file along with running other systemd commands
+sudo nano /etc/systemd/system/test-node-process.service
+
+sudo systemctl daemon-reload
+sudo systemctl enable --now test-node-process
+
+# Some more typical systemd commands
+# sudo systemctl status test-node-process
+# sudo systemctl enable test-node-process
+# sudo systemctl disable test-node-process
+# sudo systemctl start test-node-process
+# sudo systemctl stop test-node-process
+# sudo systemctl restart test-node-process

Section_05/test-node-process.service

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+[Unit]
+Description=Test Node Process
+Documentation=https://api.konnect.dev/
+After=network.target
+
+[Service]
+Type=simple
+User=edgeking810
+WorkingDirectory=/home/edgeking810/tmpNodeApp/
+ExecStart=node app.js
+Restart=always
+
+[Install]
+WantedBy=multi-user.target