zfs-localpv/e2e-tests/experiments/functional/zfspv-snapshot/test.yml

- hosts: localhost
  connection: local
  gather_facts: False

  vars_files:
    - test_vars.yml
    - /mnt/parameters.yml
    
  tasks:
    - block:

          ## Generating the testname for zfspv snapshot e2e-test
        - include_tasks: /e2e-tests/hack/create_testname.yml
    
          ## Record SOT (start of test) in e2e result e2e-cr (e2e-custom-resource)
        - include_tasks: /e2e-tests/hack/update_e2e_result_resource.yml
          vars:
            status: 'SOT'
        
        - block:
            - name: Get the name of application pod
              shell: >
                kubectl get pod -n {{ app_ns }} -l {{ app_label }} 
                --no-headers -o custom-columns=:.metadata.name | shuf -n1
              args:
                executable: /bin/bash
              register: app_pod_name

            - name: Check if the application pod are in running state
              shell: >
                kubectl get pods {{ app_pod_name.stdout }} -n {{ app_ns }}
                --no-headers -o custom-columns=:.status.phase
              args:
                executable: /bin/bash
              register: app_pod_status
              failed_when: "'Running' not in app_pod_status.stdout"

            - block:
              - name: Create some test data into the application
                include_tasks: "/e2e-tests/utils/applications/busybox/busybox_data_persistence.yml"
                vars:
                  status: 'LOAD'
                  ns: "{{ app_ns }}"
                  pod_name: "{{ app_pod_name.stdout }}"  
              when: data_persistence == 'busybox'
            
            - block:
              - name: Create some test data into the application
                include_tasks: "/e2e-tests/utils/applications/mysql/mysql_data_persistence.yml"
                vars:
                  status: 'LOAD'
                  ns: "{{ app_ns }}"
                  pod_name: "{{ app_pod_name.stdout }}"  
              when: data_persistence == 'mysql'
                    
            - name: Update the snapshot template with the test specific variables
              template: 
                src: volume_snapshot.j2
                dest: volume_snapshot.yml

            - name: Check if the volume snapshot class is present
              shell: >
                kubectl get volumesnapshotclass
              args:
                executable: /bin/bash
              register: snapshot_class_status
              failed_when: "snapshot_class not in snapshot_class_status.stdout"
            
            - name: Get the application deployment name
              shell: >
                 kubectl get deployment -n {{ app_ns }} -l {{ app_label }} --no-headers
                 -o custom-columns=:.metadata.name
              args:
                executable: /bin/bash
              register: app_deployment_name

            - name: Get the replica count for application deployment
              shell: >
                kubectl get deployment {{ app_deployment_name.stdout }} -n {{ app_ns }} --no-headers
                -o custom-columns=:.spec.replicas
              args:
                executable: /bin/bash
              register: replica_count

            - name: Scale down the application before taking the zfs vol-snapshot
              shell: >
                kubectl scale deployment/{{ app_deployment_name.stdout }} -n {{ app_ns }} --replicas=0
              args:
                executable: /bin/bash
              
            - name: Verify that modified replica count is zero
              shell: >
                kubectl get deployment {{ app_deployment_name.stdout }} -n {{ app_ns }} --no-headers
                -o custom-columns=:.spec.replicas
              args:
                executable: /bin/bash
              register: modify_replica_count
              until: "modify_replica_count.stdout == \"0\""
              delay: 3
              retries: 60

            - name: Verify that the application pod is not present after scaling down the deployment
              shell: >
                kubectl get pods -n {{ app_ns }} 
              args:
                executable: /bin/bash
              register: app_pod_status
              until: "app_pod_name.stdout not in app_pod_status.stdout"
              delay: 3
              retries: 60

              ## As we are checking the status of only one pod if is terminated successfully
              ## but in case of shared mount support other pods may not be terminate at the same time
              ## to avoid such condition here we have manual wait for 30 seconds.
            - name: Manual wait for some time
              shell: sleep 30

            - name: create zfspv volumes snapshot   
              shell: >
                kubectl create -f volume_snapshot.yml
              args:
               executable: /bin/bash
              register: status
              failed_when: "status.rc != 0"

            - name: Get the uid of the snapshot taken
              shell: >
                kubectl get volumesnapshot.snapshot {{ snapshot_name }} -n {{ app_ns }} 
                --no-headers -o custom-columns=:.metadata.uid
              args:
                executable: /bin/bash
              register: snap_uid
              
            - set_fact:
                snapshot_uid: "{{ snap_uid.stdout }}"
                
            - name: Confirm that volumesnapshot {{ snapshot_name }} is ready to use
              shell: >
                kubectl get volumesnapshot.snapshot {{ snapshot_name }} -n {{ app_ns }} 
                -o jsonpath='{.status.readyToUse}'
              args:
                executable: /bin/bash
              register: isSnapshotReady
              until: "isSnapshotReady.stdout == 'true'"
              delay: 3
              retries: 50

            - name: Check the status for openebs resource for the created snapshot {{ snapshot_name }}
              shell: >
                kubectl get zfssnap -n {{ zfs_operator_ns }} 
                -o jsonpath='{.items[?(@.metadata.name=="snapshot-{{ snapshot_uid }}")].status.state}'
              args:
                executable: /bin/bash
              register: zfssnap_status
              until: "zfssnap_status.stdout == 'Ready'"
              delay: 3
              retries: 50

            - name: Scale up the application deployment after taking zfs-volume-snapshot
              shell: >
                kubectl scale deployment/{{ app_deployment_name.stdout }} -n {{ app_ns }} --replicas={{ replica_count.stdout}}
              args: 
                executable: /bin/bash
              
            - name: Verify that all the replicas are ready of application deployment
              shell: > 
                kubectl get deployment {{ app_deployment_name.stdout }} -n {{ app_ns }} --no-headers
                -o custom-columns=:.status.readyReplicas
              args:
                executable: /bin/bash
              register: ready_replica_count
              until: ready_replica_count.stdout == replica_count.stdout
              delay: 3
              retries: 50

          when: action == 'provision' 
           
        - block:

            - name: Obtain the SnapshotContent of the snapshot
              shell: >
                kubectl get volumesnapshot.snapshot {{ snapshot_name }} -n {{ app_ns }} 
                --no-headers -o custom-columns=:.spec.snapshotContentName
              args:
                executable: /bin/bash
              register: snapshot_content

            - set_fact:
                snapshotcontent: "{{ snapshot_content.stdout }}"
                                       
            - name: Delete the volume snapshot
              shell: >
                kubectl delete volumesnapshot.snapshot {{ snapshot_name }} -n {{ app_ns }}
              args:
                executable: /bin/bash
              register: status
              failed_when: "status.rc != 0"
          
            - name: Verify if the volume snapshot is deleted successfully
              shell: >
                kubectl get volumesnapshot.snapshot -n {{ app_ns }}
              args:
                executable: /bin/bash
              register: ss_name
              failed_when: "snapshot_name in ss_name.stdout"
            
            - name: Verify if the volumesnapshotcontent is deleted
              shell: >
                kubectl get volumesnapshotcontent -n {{ app_ns }}
              args:
                executable: /bin/bash
              register: ss_content
              failed_when: "snapshotcontent in ss_content.stdout"  
            
          when: action == 'deprovision'

        - set_fact:
            flag: "Pass"
    
      rescue:
        - set_fact:
            flag: "Fail"
    
      always:
          ## RECORD END-OF-TEST IN e2e RESULT CR
        - include_tasks: /e2e-tests/hack/update_e2e_result_resource.yml
          vars:
            status: 'EOT'