title: How to create Azure vm with data disk and then format it via ansible
body: <p>I can do it separate but cannot combine them together, since I don't know disk device name.</p>
  
  <p>My configuration:</p>
  
  <pre><code>- name: Create Virtual Machine
    azure_rm_virtualmachine:
    resource_group: "{{ resource_group }}"
    name: "{{ item }}"
    vm_size: "{{ flavor }}"
    managed_disk_type: "{{ disks.disk_type }}"
    network_interface_names: "NIC-{{ item }}"
    ssh_password_enabled: false
    admin_username: "{{ cloud_config.admin_username }}"
    image:
      offer:  "{{ image.offer }}"
      publisher: "{{ image.publisher }}"
      sku: "{{ image.sku }}"
      version: "{{ image.version }}"
    tags: 
      Node: "{{ tags.Node }}"
    ssh_public_keys:
      - path: "/home/{{ cloud_config.admin_username }}/.ssh/authorized_keys"
        key_data: "{{ cloud_config.ssh.publickey }}"
    data_disks:
      - lun: 0
        disk_size_gb: "{{ disks.disk_size }}"
        caching: "{{ disks.caching }}"
        managed_disk_type: "{{ disks.disk_type }}"
  </code></pre>
  
  <p>Other part to format and mount the disk</p>
  
  <pre><code>- name: partition new disk
    shell: 'echo -e "n\np\n1\n\n\nw" | fdisk /dev/sdc'
    args:
      executable: /bin/bash
  
  - name: Makes file system on block device
    filesystem:
      fstype: xfs
      dev: /dev/sdc1
  
  - name: new dir to mount
    file: path=/hadoop state=directory
  
  - name: mount the dir
    mount:
      path: /hadoop
      src: /dev/sdc1
      fstype: xfs
      state: mounted
  </code></pre>
  
  <p>My question: device name cannot be configured.
  It can be /dev/sdc or /dev/sdb. For AWS ec2, I can set volumes[device_name], But I don't find such field in Azure. How could I fix it?</p>