feat(e2e-test): Add e2e-tests for zfs-localpv (#298)

Signed-off-by: w3aman <aman.gupta@mayadata.io>

e2e-tests/utils/k8s/deprovision_statefulset.yml

@@ -0,0 +1,72 @@
+---
+- block:
+
+    - name: Check if the statefulset application exists.
+      shell: kubectl get pods -n {{ app_ns }} -l {{ app_label }}
+      register: pods
+      failed_when: "'No resources found' in pods.stdout"
+
+    - name: Obtaining PVCs related to the application.
+      shell: kubectl get pvc -n {{ app_ns }} -l {{ app_label }}  --no-headers -o custom-columns=:.metadata.name
+      register: pvc_list
+
+    - name: Obtaining the PV names.
+      shell: kubectl get pvc -l {{ app_label }} -n {{ app_ns }} --no-headers -o custom-columns=:.spec.volumeName
+      register: pv_list
+
+     ## Replacing the item names in the respective deployer spec file.
+    - name: Replace the PVC name in application deployer spec.
+      replace:
+        path: "{{ app_deployer }}"
+        regexp: "testclaim"
+        replace: "{{ lookup('env','APP_PVC') }}"
+      when: app_pvc is defined
+
+    - name: Replace the storageclass placeholder with provider
+      replace:
+        path: "{{ app_deployer }}"
+        regexp: "testclass"
+        replace: "{{ lookup('env','PROVIDER_STORAGE_CLASS') }}"
+      when: storage_class is defined
+
+    - block:
+
+        - name: Get the application label values from env
+          set_fact:
+            app_lkey: "{{ app_label.split('=')[0] }}"
+            app_lvalue: "{{ app_label.split('=')[1] }}"
+
+        - name: Replace the application label placeholder
+          replace:
+            path: "{{ app_deployer }}"
+            regexp: "lkey: lvalue"
+            replace: "{{ app_lkey }}: {{ app_lvalue }}"
+
+      when: app_label is defined
+
+    - name: Delete the application and its related service.
+      shell: kubectl delete -f {{ app_deployer }} -n {{ app_ns }}
+      register: app_status
+      until: 'app_status.rc == 0'
+      delay: 5
+      retries: 60
+
+    - name: Deleting the PVC
+      shell: kubectl delete pvc {{ item }} -n {{ app_ns }}
+      args:
+        executable: /bin/bash
+      with_items:
+        - "{{ pvc_list.stdout_lines }}"
+
+    - name: Check if the PVCs are deleted
+      shell: kubectl get pvc -n {{ app_ns }}
+      register: list_pvc
+      until: "'No resources found' in list_pvc.stderr"
+      delay: 30
+      retries: 15
+
+- name: Delete the namespace.
+  shell: kubectl delete ns {{ app_ns }}
+  args:
+    executable: /bin/bash
+