Diagram as Code

2022年8月08日
技術情報

Diagrams allow you to draw cloud system architectures in Python code. It was created to prototype a new system architecture design without the use of design tools. You can also describe or visualize your existing system architecture.

I once talked about Mermaid which is a JavaScript-based graphing and charting tool that takes Markdown-inspired text definitions and dynamically creates charts in your browser. You can read more below.

Mermaid diagrams in Github markdown

Similarly, Diagram allows us to draw system architect design using just code. Diagram currently supports all major providers including AWS, Azure, GCP, Kubernetes, Alibaba Cloud, Oracle Cloud and more.

Let’s take a quick example how this works.

from diagrams import Diagram
from diagrams.aws.compute import EC2
from diagrams.aws.database import RDS
from diagrams.aws.network import ELB

with Diagram("Grouped Workers", show=False, direction="TB"):
    ELB("lb") >> [EC2("worker1"),
                  EC2("worker2"),
                  EC2("worker3"),
                  EC2("worker4"),
                  EC2("worker5")] >> RDS("events")

This will result as below.

grouped workers diagram — Credit : diagrams.mingrammer.com

You can see we can build amazing architecture design just by using some python code. Please check more detail at their Github and quick examples here.

Yuuma