Create Backup of all pods in multiple namespaces and then restore the backup

[Manikumar2113]

Test Case Precondition:

Kahu project installed in given name-space (test-kahu) 2. All below pods should be up and running:
a. backup service
b. Meta service with nfs provider c. nfs-server
Metadata location is created already
Namespace test-ns1, test-ns2 is created and contains some of the kubernetes resources.
Test Case steps:

Create below backup CR using kubectl command (use kubectl create -f <backup.yaml>)
apiVersion: kahu.io/v1
kind: Backup
metadata:
name: backup-Kahu-0001
spec:
includeNamespaces: [test-ns1,test-ns2]
metadataLocation: nfs includeResources:
name: kind: Pod
isRegex: true
Use kubectl describe backup -n test-kahu
Get inside nfs server pod and check for the content inside mount path given (use command kubectl exec -ti -n test-kahu /bin/sh)
Create a restore CR on new namespace (restore-ns)
apiVersion: kahu.io/v1
kind: Restore
metadata:
name: restore-Kahu-0001 Spec:
backupName: backup-Kahu-0001 namespaceMapping:
test-ns1 : restore-ns1
test-ns2 : restore-ns2
Expected Result:

In step 2,
a) Verify that backup stage is Finished and State is Completed
b) Verify the resource list in status shows all the required resources
In step 3, verify that
a) tar file is created with name of backup
b) After untar file, All pods in the namespace test-ns1 and test-ns2 are backuped.
In step4, verify that
a) Backed up pods are up in new namespace restore-ns1 and restore-ns2 respectively.
Why this issue to fixed / feature is needed(give scenarios or use cases):
This is a testcase which is to automated to make sure deployment is properly backed up and restored
How to reproduce, in case of a bug:
Other Notes / Environment Information: (Please give the env information, log link or any useful information for this issue) @kalaiselvikks76