Building an Automated CI/CD Pipeline for Flask API with Jenkins, Docker, and Kubernetes

Flask API Architecture

In modern software development, continuous integration and continuous deployment (CI/CD) are critical practices for ensuring fast, reliable, and scalable application delivery. This article provides a detailed guide to setting up a CI/CD pipeline for a Flask API using Jenkins for automation, Docker for containerization, and Kubernetes for orchestration and deployment.

Introduction

The primary goal of a CI/CD pipeline is to automate the process of building, testing, and deploying applications. By integrating Jenkins, Docker, and Kubernetes, we can ensure the Flask API is continuously deployed across different environments consistently and reliably.

Tools and Technologies Used

1. Jenkins: Automates the pipeline, handling code integration, testing, and deployment.
2. Docker: Containerizes the Flask API for deployment, ensuring consistency across environments.
3. Kubernetes: Orchestrates and manages the Docker containers, ensuring scalability and efficient deployment.
4. Git: Manages version control of the Flask API codebase.
5. Flask (Python): A lightweight Python web framework used to build the API.