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How to Deploy Nest.js App on Digitalocean?

6 minutes read

To deploy a Nest.js app on DigitalOcean, you can follow these general steps:

  1. Create a Droplet on DigitalOcean with a Node.js image.
  2. Connect to the Droplet using SSH.
  3. Clone your Nest.js app repository to the Droplet.
  4. Install the necessary dependencies (Node.js, npm) on the Droplet.
  5. Build your Nest.js app using npm build or any other build command specified in your project.
  6. Run your Nest.js app using a process manager like PM2 to keep it running in the background.
  7. Configure the necessary firewall settings and network configurations to ensure that your app is accessible.
  8. You may also want to set up a domain name and SSL certificate for secure access to your app.


It is important to note that the exact steps may vary depending on your specific project requirements and the setup of your Nest.js app. Make sure to consult the official documentation for Nest.js and DigitalOcean for more detailed instructions.


What is DigitalOcean and how does it work for hosting?

DigitalOcean is a popular cloud computing platform that offers a range of cloud services, including virtual servers (droplets), managed databases, object storage, and more. It is known for its simplicity, scalability, and cost-effectiveness.


To use DigitalOcean for hosting a website, application, or other services, you can create a droplet (virtual server) with the resources and configurations that you need. You can choose from a variety of pre-configured droplet sizes, operating systems, and applications to get started quickly.


Once you have created a droplet, you can access it via SSH and configure it with the necessary software, files, and settings. DigitalOcean provides a user-friendly control panel and API for managing and monitoring your droplets, making it easy to scale resources up or down as needed.


Overall, DigitalOcean is a reliable and flexible hosting solution that is suitable for developers, startups, and small to medium-sized businesses looking for a cloud-based hosting platform.


How to run a Nest.js app in production mode on DigitalOcean droplet?

To run a Nest.js app in production mode on a DigitalOcean droplet, follow these steps:

  1. Create a DigitalOcean droplet: Sign in to your DigitalOcean account and create a new droplet. Choose an appropriate size and region for your droplet. Select a One-Click App option for Node.js to automatically install Node.js on your droplet.
  2. Connect to your droplet: Use SSH to connect to your droplet. You can find the SSH command in your DigitalOcean dashboard. Once connected, navigate to the directory where you want to deploy your Nest.js app.
  3. Deploy your Nest.js app: Copy your Nest.js project files to the droplet using SCP or SFTP. Install dependencies by running npm install in your project directory. Build your Nest.js app by running npm run build.
  4. Set environment variables: Create a .env file in your project directory and set any necessary environment variables for your production settings.
  5. Configure a production start script: Update your package.json file in your Nest.js project to include a start script for running your app in production mode: "scripts": { "start:prod": "node dist/main.js" }
  6. Run your Nest.js app: Start your Nest.js app in production mode using the following command: npm run start:prod
  7. Set up reverse proxy (optional): If you want to access your Nest.js app through a domain name, you can set up a reverse proxy using Nginx or Apache. Configure the reverse proxy to redirect traffic from your domain to your Nest.js app running on a specific port.
  8. Monitor your app: Monitor your Nest.js app on your DigitalOcean droplet to ensure it is running smoothly in production mode. You can use tools like PM2 or monitoring services to keep track of your app's performance.


By following these steps, you should be able to run your Nest.js app in production mode on a DigitalOcean droplet.


How to install npm on DigitalOcean droplet?

To install npm on a DigitalOcean droplet, follow these steps:

  1. Connect to your droplet via SSH.
  2. Update the package list and install Node.js by running the following commands:
1
2

sudo apt update
sudo apt install nodejs


  1. To install npm, you will need to install the Node.js package manager using the following command:
1

sudo apt install npm


  1. Verify the installation by running the following commands:
1
2

node -v
npm -v


  1. You should see the version numbers of Node.js and npm displayed in the terminal, confirming that both have been successfully installed.


You have successfully installed npm on your DigitalOcean droplet.


What are the costs involved in deploying a Nest.js app on DigitalOcean?

The costs involved in deploying a Nest.js app on DigitalOcean would depend on the specific resources and configuration you choose. Here are some common costs to consider:

  1. Virtual Private Server (VPS): You would need to choose the size and specifications of the VPS instance, which would determine the cost. Prices can range from a few dollars per month for a basic instance to hundreds of dollars for more powerful configurations.
  2. Storage: If your Nest.js app requires additional storage for files or databases, you may need to purchase additional storage space on DigitalOcean. Prices vary depending on the amount of storage needed.
  3. Bandwidth: DigitalOcean charges for data transfer in and out of your VPS instance. The cost would depend on the amount of data transferred, so it is important to estimate your bandwidth usage to avoid unexpected charges.
  4. Additional services: If you require additional services such as load balancing, monitoring, or backups, these may come at an additional cost on DigitalOcean.


Overall, the cost of deploying a Nest.js app on DigitalOcean can vary depending on your specific requirements and usage. It is recommended to carefully plan and estimate your costs before deploying to ensure it fits within your budget.


What is a droplet in DigitalOcean and how does it relate to hosting a Nest.js app?

A droplet in DigitalOcean is a virtual private server (VPS) that can be used to host applications, websites, and other services. It is essentially a remote server that can be accessed and controlled via the internet.


To host a Nest.js app on DigitalOcean, you would typically create a droplet with the necessary specifications (such as CPU, memory, storage, etc.) to handle the requirements of your app. You would then install Node.js and any other dependencies needed for running Nest.js on the droplet.


Once your droplet is set up and your Nest.js app is deployed, you can access it over the internet using the IP address or domain name of the droplet. This allows users to interact with your Nest.js app and access its features and functionality. Additionally, you can configure the droplet to automatically restart the Nest.js app in case of crashes or downtime, ensuring continuous availability of your application.


What is Node.js and why is it necessary for running a Nest.js app?

Node.js is a server-side runtime environment that allows you to run JavaScript code on the server. It is built on the V8 JavaScript engine, the same engine that powers Google Chrome, and provides a way to execute JavaScript code outside of a web browser.


Nest.js is a framework for building scalable and efficient Node.js applications. It is built on top of Express.js and provides a set of powerful features and tools for building server-side applications. In order to run a Nest.js app, you need Node.js installed on your system as Nest.js applications are built to run on the Node.js runtime environment. Node.js enables Nest.js apps to handle incoming requests, interact with databases, and perform various tasks required for server-side applications.

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