This project demonstrates how to use the include configuration in .cnb.yml to manage environment variables during build and deployment processes.

The project contains two main configuration files:

Main configuration file that includes:

• References to other configuration files
• Deployment environment variable definitions
• Build process environment variable configurations

Secondary configuration file that defines:

• Environment variables for the build phase
• Environment variables for the deployment phase (referenced from main config)
• Related execution stages

The project uses the following environment variables:

• KEY_A: A
• KEY_B: B
• KEY_C: C

• KEY_X: X
• KEY_Y: Y

1. The build process performs the following operations:

   • Sets environment variables KEY_A, KEY_B, and KEY_C
   • Executes env | grep KEY_ command to display all environment variables starting with KEY_

2. The deployment process performs the following operations:

   • References environment variables (KEY_X and KEY_Y) from .deploy-env configuration
   • Executes env | grep KEY_ command to display all environment variables starting with KEY_

# .cnb.yml
include:
  - ./t.yml

.deploy-env:
  KEY_X: X
  KEY_Y: Y

main:
  push:
    build:
      env:
        KEY_C: C

# t.yml
main:
  push:
    build:
      env: 
        KEY_A: A
        KEY_B: B
      stages:
        - env |grep KEY_
    deploy:
      env: !reference [.deploy-env]
      stages:
        - env |grep KEY_

1. Ensure to update related configuration files when modifying environment variables
2. Deployment environment variables are referenced from .deploy-env using the !reference directive
3. All environment variables are prefixed with KEY_ for easy filtering and management