An opinionated Data Engineering framework

Developed with ❤️ by A3Data

What is Rony

Rony is an open source framework that helps Data Engineers setting up more organized code and build, test and deploy data pipelines faster.

Why Rony?

Rony is Hermione's best friend (or so...). This was a perfect choice for naming the second framework released by A3Data, this one focusing on Data Engineering.

In many years on helping companies building their data analytics projects and cloud infrastructure, we acquired a knowledge basis that led to a collection of code snippets and automation procedures that speed things up when it comes to developing data structure and data pipelines.

Some choices we made

Rony relies on top of a few decisions that make sense for the majority of projects conducted by A3Data:

• Terraform (>= 0.13)
• Docker
• Apache Airflow
• AWS

You are free to change this decisions as you wish (that's the whole point of the framework - flexibility).

Installing

Dependencies

• Python (>=3.6)

Install

pip install -U rony

Enabling autocompletion (unix users):

For bash:

echo 'eval "$(_RONY_COMPLETE=bash_source rony)"' >> ~/.bashrc

For Zsh:

echo 'eval "$(_RONY_COMPLETE=zsh_source rony)"' >> ~/.zshrc

How do I use Rony?

After installing Rony you can test if the installation is ok by running:

rony info

and you shall see a cute logo. Then,

1. Create a new project:

rony new project_rony

2. Rony already creates a virtual environment for the project. Windows users can activate it with

<project_name>_env\Scripts\activate

Linux and MacOS users can do

source <project_name>_env/bin/activate

3. After activating, you should install some libraries. There are a few suggestions in “requirements.txt” file:

pip install -r requirements.txt

4. Rony has also some handy cli commands to build and run docker images locally. You can do

cd etl
rony build <image_name>:<tag>

to build an image and run it with

rony run <image_name>:<tag>

In this particular implementation, run.py has a simple etl code that accepts a parameter to filter the data based on the Sex column. To use that, you can do

docker run <image_name>:<tag> -s female

Implementation suggestions

When you start a new rony project, you will find

• an infrastructure folder with terraform code creating on AWS:

  • an S3 bucket
  • a Lambda function
  • a CloudWatch log group
  • a ECR repository
  • a AWS Glue Crawler
  • IAM roles and policies for lambda and glue

• an etl folder with:

  • a Dockerfile and a run.py example of ETL code
  • a lambda_function.py with a "Hello World" example

• a tests folder with unit testing on the Lambda function

• a .github/workflow folder with a Github Actions CI/CD pipeline suggestion. This pipeline

  • Tests lambda function
  • Builds and runs the docker image
  • Sets AWS credentials
  • Make a terraform plan (but not actually deploy anything)

• a dags folder with some Airflow example code.f

You also have a scripts folder with a bash file that builds a lambda deploy package.

Feel free to adjust and adapt everything according to your needs.

Contributing

Have a look at our contributing guide.

Make a pull request with your implementation.

For suggestions, contact us: rony@a3data.com.br

Licence

Rony is open source and has Apache 2.0 License: