Diagram of containers

cPanel 12 (make that 42).md

flowchart LR
    A[fa:fa-users WHM]
    A --> B["fa:fa-user cPanel (user 1 - “classic” setup)"]
    A --> C["fa:fa-user cPanel (user 2 - major web needs; DNS/mail handled via registrar)"]
    A --> D["fa:fa-user cPanel (user 3 — complex needs)"]
    B --> E["Web"]
    B --> F["Email"]
    B --> G["MySQL"]
    B --> H["DNS"]
    C --> I["Web 1"]
    C --> J["Web 2"]
    C --> K["Web 3"]
    C --> L["Web 4"]
    C --> M["HA Replicated Mongo DB (not avail externally)"]
    I --> N["Simple/Complex HA Load Balance"]
    J --> N
    K --> N
    L --> N
    M --> I
    M --> J
    M --> K
    M --> L
    D --> O["TODO"]

• NFS for all files
• REStful APIs && Msg Queue for everything else
• “Simple/Complex” simple probably means one server (i.e. single point of failure). Complex would be more robust (RRDNS, LB, etc) via multiple servers and backends (i.e. no single point of failure).