zfs-localpv/e2e-tests/experiments/functional/backup_and_restore/incremental_backup.yml

- name: Obtain the mount path for the application
  shell: > 
      kubectl get pods -n {{ app_ns }} -l {{ app_label }} 
      -o custom-columns=:.spec.containers[].volumeMounts[].mountPath --no-headers
  args: 
      executable: /bin/bash
  register: mount

- name: Record the mount path for the application
  set_fact:
    mount_path: "{{ mount.stdout }}"
  
- name: Dump some dummy data in application mount point
  shell: >
    kubectl exec -ti {{ app_pod_name }} -n {{ app_ns }} -- sh
    -c "dd if=/dev/urandom of={{ mount_path }}/incr-file1 bs=4k count=1024 && 
    md5sum {{ mount_path }}/incr-file1 > {{ mount_path }}/pre-incr-file1-md5 && sync;sync;sync"
  args:
    executable: /bin/bash
  
- name: Wait for some seconds
  shell: sleep 60

- name: Again dump some dummy data
  shell: >
    kubectl exec -ti {{ app_pod_name }} -n {{ app_ns }} -- sh
    -c "dd if=/dev/urandom of={{ mount_path }}/incr-file2 bs=4k count=1024 && 
    md5sum {{ mount_path }}/incr-file2 > {{ mount_path }}/pre-incr-file2-md5 && sync;sync;sync"
  args:
    executable: /bin/bash

- name: Wait for some time to finish all incremental backup and at last full backup
  shell: sleep 180

- name: Get the first backup name which is full backup by default
  shell: velero get backup | grep {{ schedule_name }} | tail -n1 | awk '{print $1}'
  args:
    executable: /bin/bash
  register: first_full_bkp

- name: Record the first full backup name
  set_fact:
    first_full_backup: "{{ first_full_bkp.stdout }}"

- name: Get the first incremental backup name
  shell: velero get backup | grep {{ schedule_name }} | tail -n2 | head -n1 | awk '{print $1}'
  args:
    executable: /bin/bash
  register: first_incr_bkp

- name: Record the first incremental backup name
  set_fact:
    first_incremental_backup: "{{ first_incr_bkp.stdout }}"

- name: Get the second incremental backup name
  shell: velero get backup | grep {{ schedule_name }} | tail -n3 | head -n1 | awk '{print $1}'
  args:
    executable: /bin/bash
  register: second_incr_bkp
  
- name: Record the second incremental backup name
  set_fact:
    second_incremental_backup: "{{ second_incr_bkp.stdout }}"

- name: Get the last full backup name which is after two incremental backups
  shell: velero get backup | grep {{ schedule_name }} | tail -n4 | head -n1 | awk '{print $1}'
  args:
    executable: /bin/bash
  register: last_full_bkp

- name: Record the last full backup name
  set_fact:
    last_full_backup: "{{ last_full_bkp.stdout }}"

- name: Check status of all four backups
  shell: kubectl get backups.velero.io {{ item }} -n velero -o jsonpath='{.status.phase}'
  args:
    executable: /bin/bash
  register: backup_status
  failed_when: "backup_status.stdout != 'Completed'"
  loop: 
    - "{{ first_full_backup }}"
    - "{{ first_incremental_backup }}"
    - "{{ second_incremental_backup }}"
    - "{{ last_full_backup }}"