Environment Variables

Overview

Shared environment variables allow you to:

• Define values once and use them across multiple services
• Maintain configuration consistency between services
• Centrally manage sensitive information

Practical Example

Let's consider a common scenario where you have:

• A PostgreSQL database
• Two services that need to connect to this database

1. Define Shared Variable

In the project's shared variables section, define:

DATABASE_URL=postgresql://postgres:postgres@database:5432/postgres

2. Use the Variable in Services

In each service's environment variables tab, reference the shared variable:

DATABASE_URL=${{project.DATABASE_URL}}

Best Practices

• Use shared variables for credentials and configurations that repeat across services
• Keep descriptive variable names
• Document the purpose of each variable for easier maintenance

You can use shared enviroment variables in all the services available in dokploy.