Lesson 2: Environments

Your software runs differently in Production than it does on your laptop. Sruja models this using Deployment Nodes.

Modeling Production

deployment Production "AWS Production" {
    node Region "US-East-1" {
        node K8s "EKS Cluster" {
            containerInstance WebApp
            containerInstance API
        }
        
        node DB "RDS Postgres" {
            containerInstance Database
        }
    }
}

Modeling Local Dev

deployment Local "Docker Compose" {
    node Laptop "My MacBook" {
        containerInstance WebApp
        containerInstance API
        containerInstance Database
    }
}

Why model this?

It helps you visualize the physical differences. Maybe in Prod you have a Load Balancer that doesn’t exist locally. Sruja makes these differences explicit.