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Author: Robert Hafner

Open Source Summit: Bringing CI/CD Practices to Machine Learning with MLOps

Posted on April 26, 2024April 30, 2024 by Robert Hafner

Robert Hafner at the Open Source Summit: Bringing CI/CD Practices to Machine Learning with MLOps

Visualizing SQLAlchemy Databases as Mermaid and Dot Diagrams using Paracelsus

Posted on January 8, 2024January 8, 2024 by Robert Hafner

SQLAlchemy is a powerful tool that lets Python developers define their database schemas using simple classes. I made Paracelsus to turn those SQLAlchemy defined databases into diagrams that can be used to visualize the schema.

Podcast: IaC in depth with Robert Hafner

Posted on December 21, 2023April 30, 2024 by Robert Hafner

Robert Hafner on The IaC Podcast.

JShrink reaches over 21,000,000 installs and releases v1.6!

Posted on March 6, 2023March 6, 2023 by Robert Hafner

JShrink is a Javascript minifier written in pure PHP. It allows web applications such as Magento and Matomo (as well as thousands of other projects) to shrink Javascript code on the fly. In 2014 JShrink reached stability, and shortly after that hit the milestone of 100k total downloads- today JShrink has over 21 million downloads,…

Rob’s Awesome Python Template

Posted on February 3, 2023February 3, 2023 by Robert Hafner

Rob’s Awesome Python Template is a highly configurable CookieCutter template that’s packed full of best practices for Python Projects.

Simple Multiprocessing with QuasiQueue

Posted on February 2, 2023February 1, 2023 by Robert Hafner

QuasiQueue is a MultiProcessing library for Python that makes it super easy to have long running MultiProcess jobs. It handles process creation and cleanup, signal management, cross process communication, and all the other garbage that makes people hate dealing with multiprocessing.

A Github Pull Request opened by Github Actions

Automatically Updating Python Requirements Files with Github Actions

Posted on February 1, 2023February 1, 2023 by Robert Hafner

The action-python-lockfile-update project is a Github Action, freely available for anyone to use, that uses pip-tools to rebuild your requirements.txt files on a schedule.

Introducing DapperData for Formatting YAML and JSON

Posted on January 31, 2023January 31, 2023 by Robert Hafner

Introducing DapperData, a CLI for formatting JSON and YAML that works well with Python code bases.

Telling OpenSSH to Pull Keys from Github with AuthorizedKeysCommand

Posted on November 19, 2021December 29, 2023 by Robert Hafner

Using the AuthorizedKeysCommand OpenSSH option to pull your SSH Keys directly from Github.

Multi-Py: Multiplatform Container Images for Python Packages

Posted on November 10, 2021November 10, 2021 by Robert Hafner

Multi-Py publishes container images for popular Python packages targeting AMD64, ARM64, and ARM v7, on Ubuntu and Alpine.

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About

Robert Hafner is a Principal Engineer based in Chicago focusing on distributed applications, infrastructure, and security. This blog is a running journal of projects, tutorials, and random ideas that pop into his head.

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