nginx

TODOS

➜ Create Nginx Server with Docker Image

➜ Install Litmus

➜ Run container-kill experiment on pod

Requirements

• Kubernetes/kubectl

Create Nginx Server

1. Create an nginx namepsace

   kubectl create namespace nginx

2. Create deployment with nginx image

   kubectl create deployment nginx --image=nginx -n nginx

3. Check pod was created successfully and has a ready and running status

   kubectl get pods --all-namespaces

4. Create service

   kubectl create service nodeport nginx --tcp=80:80 -n nginx

5. Check service was created successfully

   kubectl get svc -n nginx

Install Litmus

1. Apply the LitmusChaos Operator manifest

   kubectl apply -f https://litmuschaos.github.io/litmus/litmus-operator-v1.9.0.yaml

2. Verify Litmus installation

   #ChaosOperator running 
   kubectl get pods -n litmus
   #Chaos CRDs installed 
   kubectl get crds | grep chaos
   #Chaos resources created  
   kubectl api-resources | grep chaos

3. Install Experiments

   kubectl apply -f https://hub.litmuschaos.io/api/chaos/1.9.0\?file\=charts/generic/experiments.yaml -n nginx
   #verify experiments are installed
   kubectl get chaosexperiments -n nginx

4. Setup Service Account

   #create rbac.yaml file.yaml and apply it 
   kubectl apply -f rbac.yaml
   #annotate application
   kubectl annotate deploy/nginx litmuschaos.io/chaos="true" -n nginx

Run Container Kill Experiment

1. Prepare Chaos Engine and run it

   #create chaosengine.yaml and apply manifest
   kubectl apply -f chaosengine.yaml

2. Observe Results (Takes a few seconds for command to turnover, results initially in await state)

    kubectl describe chaosengine nginx-chaos -n nginx
    kubectl describe chaosresult nginx-chaos-container-kill -n nginx
     #to save results to file: 
    kubectl describe chaosengine nginx-chaos -n nginx > chaosengine.txt
    kubectl describe chaosresult nginx-chaos-container-kill -n nginx > chaosresult.txt

3. Uninstall

   kubectl delete -f https://litmuschaos.github.io/litmus/litmus-operator-v1.9.0.yaml
   kubectl delete chaosengine --all -n nginx
   kubectl delete chaosengine --all -n litmus
   kubectl delete namespaces nginx