Configuring Build and Start Commands

The build command and start command are essential for preparing and running your application on Seenode.

• The build command installs dependencies and compiles or prepares your application for execution.
• The start command starts your application, making it available for requests.

Seenode attempts to automatically detect these commands, but you can customize them based on your project’s needs.

Framework Examples

Here are some common examples for different frameworks.

Node.js

Build Command

Terminal

npm install

Start Command

Terminal

node server.js

Python (FastAPI)

Build Command

Terminal

pip install -r requirements.txt

Start Command

Terminal

uvicorn main:app --host 0.0.0.0 --port 8000

Python (Django)

Build Command

Terminal

pip install -r requirements.txt

Start Command

Terminal

gunicorn my-project.wsgi --bind 0.0.0.0:8000

Tip

For production, it is recommended to use a production-ready web server like Gunicorn instead of Django’s runserver.

Go

Build Command

Terminal

go build -o app .

Start Command

Terminal

./app

Note

You can set the PORT in the environment variables for your service. If you don’t set it, your application should listen on a default port (e.g., 8000 for Python frameworks).

Advanced Usage

Sometimes, you need to run additional commands as part of your build or start process. You can chain commands using &&.

Running Database Migrations

It’s a common practice to run database migrations before starting the application.

1. Chain the commands

   You can add the migration command to your start command, separated by &&.

   Django Example

   Terminal

   python manage.py migrate && gunicorn my-project.wsgi --bind 0.0.0.0:8000

   FastAPI with Alembic Example

   Terminal

   alembic upgrade head && uvicorn main:app --host 0.0.0.0 --port 8000

2. Use a startup script

   For more complex startup sequences, you can create a script.

   startup.sh

   startup.sh

   #!/bin/sh
   
   # Run migrations
   python manage.py migrate
   
   # Start the application
   gunicorn my-project.wsgi --bind 0.0.0.0:8000

   Make the script executable: chmod +x startup.sh

   Then, set your start command to:

   Terminal

   ./startup.sh