Setting up pm2 for our Node.js

[PESolut]

Setting up PM2 for our Node.js application

What is PM2?

PM2 is a production process manager for Node.js applications. It allows you to keep applications alive forever, reload them without downtime, and facilitate common system admin tasks.

Installation

install PM2 globally, run:

npm install pm2@latest -g

Basic PM2 Setup

1. Navigate to your project directory:

   cd /path/to/your/project

2. Start your application with PM2:

   pm2 start backend/server.js --name "my-app"

   Replace backend/server.js with the path to your main server file.

3. Check the status of your processes:

   pm2 list

4. Monitor your application:

   pm2 monit

5. To stop your application:

   pm2 stop "my-app"

6. To restart your application:

   pm2 restart "my-app"

Additional PM2 Commands

• View logs:

  pm2 logs

• Set up PM2 to start on system boot:

  pm2 startup

  Follow the instructions provided by this command.

• Save the current PM2 process list:

  pm2 save

PM2 Configuration File (Optional)

For more advanced setups, you can create a ecosystem.config.js file in your project root:

javascript
module.exports = {
apps: [{
name: "my-app",
script: "./backend/server.js",
env: {
NODE_ENV: "development",
},
env_production: {
NODE_ENV: "production",
}
}]
}

then start the app using:

pm2 start ecosystem.config.js

Next Steps

• Explore PM2's clustering capabilities for improved performance
• Set up monitoring and alerts
• Integrate PM2 with your deployment process

Remember to consult the official PM2 documentation for more detailed information and advanced features.

Originally posted by @PESolut in #4