---
title: Data model of sample web application
---
erDiagram
    operator {
        string username
        string password_hash
    }
    deployment {
        json configuration
        option[string] version
    }
    backup["back-up"] {
        string bucket
        string endpoint
    }
    keypair {
        string access_key
        string secret_key
    }
    operator ||--o{ deployment : has
    deployment ||--o{ backup : has
    backup ||--|{ keypair : authorises