Kube DOOM Project for Kubernetes learning purposes

Kill Kubernetes pods using Id's Doom!

The next level of chaos engineering is here! Kill pods inside your Kubernetes cluster by shooting them in Doom!

This repo is contain about the Kube Doom project for learning and implementing the Kubernetes and killing the pods inside your Kubernetes cluster.

The credit goes to iiDKx & storax/kubedoom.

The following steps are involved in implementing the KubeDoom Project

Prerequisites

This is project can be implemented on your local machine (VM), AWS Cloud or any other cloud provider which suites you.

• Local Machine(VM) (Ubuntu 22.04)
• Docker Installation link
• Kind or Minikube or kubeadm Installation. (Install Kind quickly with: ./install-prereqs.sh)
• TigerVNC Viewer

Step 1: Update VM/Ubuntu

After installation of VM (ubuntu), please make sure your system is updated

#Basic command to make sure all are updated
sudo apt update
sudo apt-get update
#Check IP 
ifconfig 
ip --brief addr show
#Check firewall 
sudo ufw status
sudo ufw allow 22/tcp
#swapoff
sudo -i
swapoff - a

Step 2: Steup Kubernetes Cluster (Kind)

Running Kubedoom inside Kubernetes

Install kind master and worker node

See the example in the /manifest directory. You can quickly test it using kind. Create a cluster with the example config from this repository:

$ kind create cluster --config kind-config.yaml
Creating cluster "kind" ...
 ✓ Ensuring node image (kindest/node:v1.25.3) 🖼
 ✓ Preparing nodes 📦 📦
 ✓ Writing configuration 📜
 ✓ Starting control-plane 🕹️
 ✓ Installing CNI 🔌
 ✓ Installing StorageClass 💾
 ✓ Joining worker nodes 🚜
Set kubectl context to "kind-kind"
You can now use your cluster with:

kubectl cluster-info --context kind-kind
Not sure what to do next? 😅  Check out https://kind.sigs.k8s.io/docs/user/quick-start/

Set your Kube context with: kubectl cluster-info --context kind-kind

This will spin up a 2 node cluster inside docker, with port 5900 exposed from the worker node. Then run kubedoom inside the cluster by applying the manifest provided in this repository. The Kubernetes-Manifests-Files directory holds Kubernetes manifests for deploying your application on cluster.

$ kubectl apply -k manifest/ 
namespace/kubedoom created
deployment.apps/kubedoom created
serviceaccount/kubedoom created
clusterrolebinding.rbac.authorization.k8s.io/kubedoom created

Step 3: Docker Build

Build the image with docker build --build-arg=TARGETARCH=amd64 . -t kubedoom while in this directory. Then run:

#docker run command and and attached pods
$ docker run -p5801:5800 \
  -e NAMESPACE=default \
  --net=host \
  -v ~/.kube:/root/.kube \
  --rm -it --name kubedoom \
  kubedoom:latest

Optionally, if you set -e NAMESPACE={your namespace} you can limit Kubedoom to deleting pods in a single namespace

Step 4: Docker Build

Deploy some Nginx pods to your cluster:

kubectl apply -f k8s/nginx-deployment.yaml

You can refresh the dashboard as you kill the pods from Kubedoom and expand upon this to track other metrics and applications in your cluster.

Step 5: Attaching a VNC Client

Now start a VNC viewer and connect to localhost:5900. The password is idbehold:

$ vncviewer viewer localhost:5901

You should now see DOOM! Now if you want to get the job done quickly enter the cheat idspispopd and walk through the wall on your right. You should be greeted by your pods as little pink monsters. Press CTRL to fire. If the pistol is not your thing, cheat with idkfa and press 5 for a nice surprise. Pause the game with ESC. iddqd for god mode.

Cheat codes found here: https://doom.fandom.com/wiki/Doom_Cheat_Codes

To connect run:  

$ vncviewer viewer localhost:5900

Step 6: Kubedoom demo