Add crude storage benchmark

ansible/roles/firstboot/files/ansible_payload/common/roles/disks/tasks/main.yml

@@ -11,11 +11,25 @@
     lv: longhorn_lv
     size: 100%VG
 
+- name: Store begin timestamp
+  ansible.builtin.set_fact:
+    start_time: "{{ lookup('pipe', 'date +%s') }}"
+
 - name: Create filesystem
   community.general.filesystem:
     dev: /dev/mapper/longhorn_vg-longhorn_lv
     fstype: ext4
 
+- name: Store end timestamp
+  ansible.builtin.set_fact:
+    end_time: "{{ lookup('pipe', 'date +%s') }}"
+
+- name: Calculate crude storage benchmark
+  ansible.builtin.set_fact:
+    storage_benchmark: "{{ (end_time | int - start_time | int) }}"
+- debug:
+    var: storage_benchmark
+
 - name: Mount dynamic disk
   ansible.posix.mount:
     path: /mnt/blockstorage