Jenkins Pipeline for Building Flask Python App and Deploying on Minikube Cluster

This is a Jenkins pipeline for building a Flask Python app and deploying it on a Minikube cluster. The pipeline includes the following stages:

• Checkout: Checkout the code from the Git repository.
• Build Docker Image: Build a Docker image for the Flask Python app and tag it with the current build number.
• Push to Docker Hub: Push the Docker image to Docker Hub using the docker CLI and the credentials stored in Jenkins.
• Deploy to Minikube: Deploy the Flask Python app on the Minikube cluster using the kubectl CLI and the credentials stored in Jenkins.
• Expose with Port 443: Expose the Flask Python app to the outside world using port 443.

Prerequisites

Before you can run this Jenkins pipeline, you will need to have the following installed on your system:

• Jenkins: This pipeline has been tested on Jenkins version 2.399 running inside a Docker container.
• Docker: This pipeline assumes that you have Docker installed and configured on your system.
• Kubectl: This pipeline assumes that you have kubectl installed and configured on your Jenkins Docker container.

Jenkins Configuration

To use this pipeline, you will need to configure the following in Jenkins:

• Git Plugin: Install the Git plugin for Jenkins so that the pipeline can checkout the code from the Git repository.
• Docker Credentials: Configure Docker Hub credentials in Jenkins so that the pipeline can push the Docker image to Docker Hub.
• Kubernetes Credentials: Configure the kubeconfig file with the credentials to access your Kubernetes cluster.
• Kubernetes Plugin: Install the Kubernetes plugin for Jenkins so that the pipeline can deploy the app on the Minikube cluster.