hariscats / k8s-self-healing-simulator

K8s Self-Healing Simulator

The Kubernetes Self-Healing Simulator is a Python CLI tool designed to demonstrate the self-healing capabilities of Kubernetes that I developed for customer workshops. It allows users to delete a pod from a list of running pods and then watch as Kubernetes automatically recreates the pod, showcasing the system's resilience.

Features

• List all running pods in a specified namespace.
• Delete a selected pod and observe Kubernetes' response to maintain the desired state.
• Watch and display events related to the pod's recreation process.

Prerequisites

• Python 3.6+
• Kubernetes cluster (Minikube or any cloud-based Kubernetes service)
• kubectl configured to connect to your Kubernetes cluster
• Kubernetes Python client

Installation

1. Clone this repository:

   git clone https://github.com/yourusername/kubernetes-self-healing-simulator.git

2. Navigate to the project directory:

   cd kubernetes-self-healing-simulator

3. Create and activate a virtual environment:

   python -m venv venv
   source venv/bin/activate  # On Windows, use `venv\Scripts\activate`

4. Install the required dependencies:

   pip install -r requirements.txt

Usage

1. Ensure your kubectl is configured and points to the desired Kubernetes cluster.
2. Run the simulator:

   python src/simulator.py

3. Follow the on-screen prompts to select and delete a pod. Observe the self-healing process through event logs.