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Guide for deploying Node.js applications.

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Prerequisites

Supported Node.js Versions

  • 8, 10, 12, 14, 16, 18, 20
Ensure the Node.js version specified in your project configuration files (e.g., package.json, .nvmrc) matches the version selected during deployment. A mismatch may cause build and runtime errors.

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Select Template and Repository

On the dashboard, click or ⌘ + K to open the deployment modal and select the Node.js template. Then choose a GitHub repository from the dropdown or input a Git repository URL in the Git URL tab.

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Deployment Settings

Apply the following settings to ensure your service runs seamlessly.
  • Version
  • Environment Variables
  • Port Number: 3000 (default)
  • Install Command: npm/yarn package install command
  • Build Command: npm/yarn build command
  • Start Command: node execution command
  • Health Check: Endpoint for verifying container status
  • Build Variables: Variables to include during container image builds
  • Update strategy
    • Rolling Update: Deploy new version incrementally while maintaining service availability. Requires sufficient node resources
    • Recreate: Stop all instances before deploying new version. Results in downtime
  • .npmrc: Configuration for npm package registry path, proxy settings, etc.

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Set Resources and Deploy

  • Resource Type: Select between On-demand or Spot instance types
  • CPU: Maximum vCPU resource for the service. Minimum vCPU means 0.1 vCPU
  • Memory: Maximum memory size your service can use
  • Replica: Number of service replicas for high availability and load balancing
  • Deploy: Click Deploy
Once deployment is complete, you can access the web page via the preview domain or send requests using an API tool.
If deployment fails due to resource limitations, see the Space and Resource Management page to add resources to your space.
Node.js Docs