Hardening policies only getting generated for deployments

[vishnusomank]

Problem Statement:

The discovery engine is not able to recommend hardening policies if the pods are generated through a statefulset or a replicaset. With the current implementation the discovery engine checks for all deployments in the Kubernetes cluster and generates the recommended/hardening policies.

Steps to reproduce the issue:

1. Create a k3s cluster
2. Install karmor cli

   curl -sfL http://get.kubearmor.io/ | sudo sh -s -- -b /usr/local/bin
   

3. Install kubearmor

   karmor install
   

4. Deploy frontend pod using replicaset

   kubectl create ns rs-demo
   echo "
   apiVersion: apps/v1
   kind: ReplicaSet
   metadata:
     name: frontend
     labels:
       app: guestbook
       tier: frontend
   spec:
     # modify replicas according to your case
     replicas: 3
     selector:
       matchLabels:
         tier: frontend
     template:
       metadata:
         labels:
           tier: frontend
       spec:
         containers:
         - name: php-redis
           image: gcr.io/google_samples/gb-frontend:v3 " | kubectl -n rs-demo apply -f- 
   

5. use karmor recommend to generate hardening policy

   karmor recommend -n rs-demo
   

The default output folder out will be empty, meaning no policies generated for the pods