Skip to content
CCL

CCL Examples

CCL in practice: simple configurations that show the format’s power.

Database Configuration

Section titled “Database Configuration”
database =
  host = localhost
  port = 5432
  name = myapp_prod
  credentials =
    username = admin
    password = ${DB_PASSWORD}

Multi-Environment Config

Section titled “Multi-Environment Config”
beta =
  mode = sandbox
  capacity = 2
  feature_flags =
    new_ui = true
    api_v2 = false


prod =
  mode = live
  capacity = 8
  feature_flags =
    new_ui = false
    api_v2 = true

Server List

Section titled “Server List”
servers =
  = web1.example.com
  = web2.example.com
  = api.example.com


backup_servers =
  = backup1.example.com
  = backup2.example.com

Nested Configuration

Section titled “Nested Configuration”
logging =
  level = info
  outputs =
    console =
      enabled = true
      format = json
    file =
      enabled = true
      path = /var/log/app.log
      rotation = daily

Comments and Documentation

Section titled “Comments and Documentation”
/= Application configuration
/= Updated: 2024-01-15


app =
  name = MyApp
  version = 2.0.0
  /= Deprecated: Use feature_flags instead
  experimental_mode = false

All examples use core CCL syntax: key-value pairs with indentation.