degen-cli 0.7.2

Data Engineering Architecture Composer CLI

DEGEN — Data Engineering Project Generator

Scaffold production-ready data pipelines in minutes, not hours.

DEGEN is a CLI framework for data engineers. Answer three questions about your architecture, and DEGEN generates a complete, working project — Docker services, dependencies, configuration, pipeline scripts, and a unified degen command to run everything.

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Install

pipx install degen-cli

Requires Python 3.12+ and Docker.

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Quick start

degen init           # interactive project scaffold
cd my_project

degen install        # install dependencies
degen docker-up      # start services (Kafka, Postgres, etc.)
degen run            # execute the pipeline
degen ui             # list all web interfaces
degen status         # project health check

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Architecture Patterns

Batch ETL

Extract data, transform with dbt, store in DuckDB or Postgres.

degen init           # select Batch ETL → Python + dbt + DuckDB
degen install
degen run            # extract → dbt run
degen seed           # load seed data
degen test           # dbt data quality tests
degen notebook       # Jupyter Lab at http://localhost:8888
degen docs           # dbt docs at http://localhost:8081

Analytics

Orchestrate with Prefect or Airflow, visualize with Grafana or Metabase.

degen init           # select Analytics → Prefect + dbt + Postgres + Grafana
degen install
degen docker-up      # Postgres + pgAdmin + Grafana
degen prefect-server # Prefect UI at http://localhost:4200
degen run            # run Prefect flow
degen docs           # dbt docs at http://localhost:8081

Streaming

Real-time event processing with Kafka and PySpark.

degen init           # select Streaming → Kafka + PySpark
degen install
degen docker-up      # Kafka + Kafka UI at http://localhost:8082
degen create-topic   # create Kafka topic
degen produce        # send 100 events to Kafka
degen stream         # PySpark consumer + Spark UI at http://localhost:4040

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Every tool has a web UI

Tool	Interface	Port
Kafka	Kafka UI	:8082
Postgres	pgAdmin 4	:5050
ClickHouse	ClickHouse Play	:8123/play
DuckDB	Jupyter Lab (degen notebook)	:8888
dbt	dbt Docs (degen docs)	:8081
PySpark	Spark UI (auto)	:4040
Airflow	Airflow UI	:8080
Prefect	Prefect UI	:4200
Metabase	Metabase	:3000
Grafana	Grafana	:3001

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What DEGEN generates

Every project includes:

my_project/
├── degen.yaml              # project manifest — pattern, tools, commands
├── docker-compose.yml      # all services, pre-wired and ready
├── requirements.txt        # pinned dependencies
├── .env                    # environment variables with sensible defaults
├── Makefile                # for CI/CD and power users
├── profiles.yml            # dbt connection config (when applicable)
├── src/
│   └── extract.py          # pipeline scripts
└── my_project/             # dbt project (when applicable)
    ├── dbt_project.yml
    └── models/

Every command you'd normally wire up manually — python -m venv, pip install, dbt init, docker compose up, dbt run, jupyter lab — becomes a single degen command with real-time Rich output.

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degen.yaml

The project manifest defines all available commands:

project: my_project
pattern: Batch ETL
tools:
  - Python
  - dbt
  - DuckDB
ui:
  Jupyter Lab: http://localhost:8888
  dbt docs: http://localhost:8081
commands:
  install:
    steps:
      - python -m venv .venv
      - .venv/bin/pip install -r requirements.txt
      - .venv/bin/dbt init my_project --skip-profile-setup
  run:
    steps:
      - .venv/bin/python src/extract.py
      - cd my_project && ../.venv/bin/dbt run --profiles-dir ..
  seed:
    steps:
      - cd my_project && ../.venv/bin/dbt seed --profiles-dir ..
  test:
    steps:
      - cd my_project && ../.venv/bin/dbt test --profiles-dir ..

Add custom commands and run them with degen exec <command>.

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CLI reference

Command	Description
degen init	Scaffold a new project interactively
degen status	Project health + available commands + UI URLs
degen ui	List all web interface URLs
degen install	Install dependencies
degen docker-up	Start Docker services
degen docker-down	Stop Docker services
degen run	Execute the pipeline end-to-end
degen stream	Start PySpark streaming consumer
degen produce	Send 100 synthetic events to Kafka
degen create-topic	Create Kafka topic
degen seed	Load dbt seed data
degen test	Run dbt tests
degen docs	Serve dbt documentation
degen notebook	Start Jupyter Lab
degen prefect-server	Start Prefect backend
degen exec <cmd>	Run any custom command from degen.yaml
degen version	Print installed version

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Supported tools

Phase	Tools
Extract	Python (pandas + requests)
Transform	dbt · PySpark
Store	DuckDB · Postgres · ClickHouse
Orchestrate	Prefect · Airflow
Serve	Grafana · Metabase
Stream	Kafka (KRaft, no Zookeeper)

All tools are 100% open source.

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Design philosophy

• Opinionated: clear defaults, no analysis paralysis
• Complete: every tool comes with Docker, config, UI, and a degen command
• Practical: generates working code you can run immediately and customize from there
• Open source only: every dependency is freely available and self-hostable

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Documentation

Full hands-on guides at the documentation site:

• Getting Started
• Batch ETL
• Analytics
• Streaming
• CLI Reference

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Development

git clone https://github.com/FB-castro/degen.git
cd degen
python -m venv .venv
source .venv/bin/activate
pip install -e ".[dev]"

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License

MIT