How to mount multiple disks in a loop using ansible

I just started working with Ansible recently. I am trying to mount 4 disks on azure VM which were attached using terraform. Each disk was passed with a LUN number and I am fetching the device name(sdc,sdd etc.) for each disk using that LUN no.and grep.

    - name: get volume name
      shell: echo "/dev/$(ls -l /dev/disk/azure/scsi1 |grep {{ item.lun }}|egrep -o "([^\/]+$)")"
      register: volumename
    - parted:
        device: "{{ volumename.stdout }}"
        number: 1
        state: present
    - filesystem:
        fstype: xfs
        dev: "{{ volumename.stdout }}"
    - mount:
        fstype: xfs
        opts: noatime
        src: "{{ volumename.stdout }}"
        path: "{{ item.mountpoint }}"
        state: mounted
    - command: blkid -s UUID -o value {{ volumename.stdout }}
      register: volumename_disk

    - blockinfile:
        path: /etc/fstab
        state: present
        block: |
          UUID={{ volumename_disk.stdout }}   {{ volumename.stdout }}      xfs defaults,noatime,nofail 0 0

      loop:
        - { lun: 'lun0', mountpoint: '/apps/mysql/binlog', diskname: 'binlog' }
        - { lun: 'lun1', mountpoint: '/apps/mysql/innodb', diskname: 'innodb' }
        - { lun: 'lun2', mountpoint: '/apps/mysql/data', diskname: 'data' }
        - { lun: 'lun3', mountpoint: '/apps/mysql', diskname: 'backup' }
      tags: test

I keep getting volumename variable is not defined error. Is there any way to set volumename as global so that the next playbook can access it or How I can improve this code ?

After reading through documentation, I was able to find a way to achieve this.

The right approach would be to use Ansible's dictionary variable.

raid_config:
  - lun:          "{{ backup_lun }}"
    mountpoint:   "{{ backup_mountpoint }}"
  - lun:          "{{ data_lun }}"
    mountpoint:   "{{ data_mountpoint }}"
  - lun:          "{{ binlog_lun }}"
    mountpoint:   "{{ binlog_mountpoint }}"
  - lun:          "{{ innodb_lun }}"
    mountpoint:   "{{ innodb_mountpoint }}"

Moved the tasks to a separate file mountdisk.yml and passed a dictionary to the tasks like this

- include_tasks: "mountdisk.yml"
  loop: "{{ raid_config }}"
  loop_control:
    loop_var: disk
  tags: test