Introduction to Diagrams

• Diagrams lets you draw the cloud system architecture in Python code.
• It was born for prototyping a new system architecture without any design tools. You can also describe or visualize the existing system architecture as well.
• Diagram as Code allows you to track the architecture diagram changes in any version control system.
• Diagrams currently supports main major providers including: Amazon Web Services(AWS), Azure, Google Cloud Platform(GCP), Kubernetes, Alibaba Cloud, Oracle Cloud etc… It also supports On-Premise nodes, SaaS and major Programming frameworks and languages.

Installation

1. It requires Python 3.6 or higher.
2. It uses Graphviz to render the diagram, so you need to install Graphviz to use diagrams. Ref: https://graphviz.gitlab.io/download/
3. Install the diagrams. Ref: https://diagrams.mingrammer.com/docs/getting-started/installation

Getting Started

1. Create a python file - diagram.py and paste the below code

    Quick Start
    # diagram.py
    from diagrams import Diagram
    from diagrams.aws.compute import EC2
    from diagrams.aws.database import RDS
    from diagrams.aws.network import ELB
   
    with Diagram("Web Service", show=False):
        ELB("lb") >> EC2("web") >> RDS("userdb")
   

2. Run the below command to generate the diagram which will be saved in the same directory as png.

    python diagram.py