Re-adding Test App, modified to use default storage class for openebs…

…-claim

eks-anywhere-baremetal/Testers/Core/snapshot-tester/test-app/claim.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: openebs-claim
+  namespace: default
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 4Gi

eks-anywhere-baremetal/Testers/Core/snapshot-tester/test-app/kustomization.yaml

@@ -0,0 +1,5 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - claim.yaml
+  - test-app-job.yaml

eks-anywhere-baremetal/Testers/Core/snapshot-tester/test-app/test-app-job.yaml

@@ -0,0 +1,24 @@
+---
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: app
+  namespace: default
+spec:
+  backoffLimit: 3 
+  template:
+    spec:
+      containers:
+      - name: app
+        image: centos
+        imagePullPolicy: IfNotPresent
+        command: ["/bin/sh"]
+        args: ["-c", "while true; do echo $(date -u) >> /data/out.txt; sleep 5; done"]
+        volumeMounts:
+        - name: persistent-storage
+          mountPath: /data
+      restartPolicy: OnFailure
+      volumes:
+      - name: persistent-storage
+        persistentVolumeClaim:
+          claimName: openebs-claim