How to Deploy Nest.js App on Digitalocean?

8 minutes read

To deploy a Nest.js app on DigitalOcean, you will first need to have a server set up on DigitalOcean. Once you have your server up and running, you can follow these general steps to deploy your Nest.js app:

  1. Build your Nest.js app for production by running the command:
npm run build

  1. Copy the generated dist folder to your DigitalOcean server using a tool like SCP or SFTP.
  2. Install Node.js and npm on your DigitalOcean server if they are not already installed.
  3. Install PM2, a process manager for Node.js applications, on your server by running the command:
npm install pm2 -g

  1. Navigate to the root directory of your Nest.js app on the server and start your app using PM2 by running the command:
pm2 start dist/main.js

  1. Set up a reverse proxy using a tool like Nginx to direct traffic to your Nest.js app.
  2. Configure any necessary environment variables on your DigitalOcean server, such as database connection strings or API keys.
  3. Ensure that your server has any required dependencies installed, such as database drivers or packages used in your Nest.js app.

By following these steps, you should be able to successfully deploy your Nest.js app on DigitalOcean and have it running in a production environment.

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How to monitor performance of a Nest.js app on DigitalOcean?

To monitor the performance of a Nest.js app running on DigitalOcean, you can follow these steps:

  1. Use DigitalOcean monitoring tools: DigitalOcean provides built-in monitoring tools that allow you to track various metrics such as CPU usage, memory usage, disk I/O, and network traffic. You can access these monitoring tools by logging into your DigitalOcean account and navigating to the "Monitoring" tab for your Droplet.
  2. Use external monitoring tools: You can also use external monitoring tools such as New Relic, Datadog, or Prometheus to monitor the performance of your Nest.js app. These tools provide more advanced monitoring capabilities and allow you to track additional metrics such as response times, error rates, and application performance.
  3. Set up logging: Logging is another important aspect of monitoring the performance of your Nest.js app. You can use tools like ELK stack (Elasticsearch, Logstash, Kibana) or Graylog to centralize and analyze your application logs. By monitoring your logs, you can identify issues and troubleshoot performance issues more effectively.
  4. Implement performance profiling: Nest.js provides support for performance profiling using tools like clinic.js or Node.js built-in profiling tools. By profiling your application, you can identify bottlenecks and optimize the performance of your Nest.js app.
  5. Set up alerts: To stay on top of performance issues, it's important to set up alerts for critical metrics such as high CPU usage, memory leaks, or server downtime. You can configure alerts using both DigitalOcean's monitoring tools and external monitoring tools to ensure that you are notified of any performance issues promptly.

By following these steps, you can effectively monitor the performance of your Nest.js app running on DigitalOcean and ensure that your application is running smoothly and efficiently.

What is Node.js?

Node.js is an open-source, server-side runtime environment built on Chrome's V8 JavaScript engine. It allows developers to build fast and scalable network applications using JavaScript. Node.js is designed to be non-blocking and event-driven, making it ideal for real-time applications such as chat apps, streaming services, and online games. It is commonly used for backend development, but can also be used for front-end development with tools like Angular and React.

What is DigitalOcean?

DigitalOcean is a cloud infrastructure provider that offers virtual servers, storage, and networking services to help developers deploy, manage, and scale applications. It provides a range of cloud services, including Droplets (virtual private servers), Kubernetes, databases, and object storage, as well as features such as monitoring, load balancing, and firewalls. DigitalOcean is known for its simple and user-friendly interface, competitive pricing, and customer support.

What is SSL/TLS?

SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are cryptographic protocols designed to provide secure communication over a computer network, typically the internet. These protocols establish an encrypted connection between a web server and a browser, ensuring that any data exchanged between the two parties remains private and secure. SSL and TLS are commonly used for securing online transactions, sensitive data transfers, and confidential communications.

How to deploy a Nest.js app using Docker on DigitalOcean?

To deploy a Nest.js app using Docker on DigitalOcean, follow these steps:

  1. Build a Dockerfile for your Nest.js app Create a Dockerfile in the root of your Nest.js project with the following content:
FROM node:14

WORKDIR /usr/src/app

COPY package*.json ./
RUN npm install

COPY . .


CMD ["npm", "start"]

This Dockerfile sets up a Node.js environment, installs the project dependencies, copies the project files, exposes port 3000, and starts the Nest.js app.

  1. Build the Docker image locally Open a terminal in the root of your Nest.js project and run the following command to build the Docker image:
docker build -t nestjs-app .

This command will build the Docker image using the Dockerfile.

  1. Tag the Docker image Run the following command to tag the Docker image with the DigitalOcean registry URL:
docker tag nestjs-app:latest

Replace your-registry with your DigitalOcean registry name.

  1. Push the Docker image to DigitalOcean Login to your DigitalOcean account using the following command:
doctl auth init

Then push the Docker image to the DigitalOcean registry:

docker push

  1. Create a DigitalOcean Droplet Login to your DigitalOcean account and create a new Droplet. Choose the Docker One-Click App as the image and select the size and region for your Droplet.
  2. SSH into the Droplet SSH into the Droplet using the provided IP address:
ssh root@your-droplet-ip

  1. Pull the Docker image on the Droplet Run the following command to pull the Docker image from the DigitalOcean registry on the Droplet:
docker pull

  1. Run the Docker container on the Droplet Start the Docker container on the Droplet with the following command:
docker run -d -p 3000:3000

Your Nest.js app should now be deployed and running on DigitalOcean using Docker. You can access it by navigating to http://your-droplet-ip:3000 in a web browser.

What is npm?

npm (Node Package Manager) is a package manager for the JavaScript programming language. It is used to manage and share open-source JavaScript packages, facilitating the development of JavaScript applications by providing a central repository for developers to find and install packages and libraries./npm

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