Ansible: Adding EBS volume to an EC2 instance

create-ebs.yml

---
- name: Creating a Volume
  hosts: localhost
  become: yes
  tasks: 
    - name: Creating a Volume
      ec2_vol:
        aws_access_key: "{{ lookup('env', 'AWS_ACCESS_KEY_ID') }}"
        aws_secret_key: "{{ lookup('env', 'AWS_SECRET_ACCESS_KEY') }}"
        instance: '<instance-id>'
        volume_size: <volume-size>
        device_name: <device-name> #/dev/xvdf, /dev/xvdb
        region: '<region-name>'
        volume_type: <volume-type>  #example gp2
      register: ec2_vol
 
    - name: Printing the volume information
      debug: var=ec2_vol  
      
    - name: creating mount point (directory) 
      file:
        state: directory
        path: "< path >"
    
    - name: formatting the volume
      filesystem:
        dev: "< MOUNT_VOLUME >"
        fstype: "< VOLUME_FORMAT >" #ext4, ext3 etc
 #the device mount depends on the system

    - name: mounting the filesystem
      mount:
        name: "< path to mount point >"
        src: "< MOUNT_VOLUME >"
        fstype: "< VOLUME_FORMAT >" #ext4, ext3 etc
        state: mounted

I tried this but i get this error : fatal: [localhost]: FAILED! => {"changed": false, "msg": "Device /dev/xvdf not found.
Does this mounting works. Volume is created as expected but formatting/ mounting fails

Did you check, whether the disk name is same as /dev/xvdf?

I got the issue.. actually the file, filesystem and mount module need to run on ec2 instances. So i passed ec2 instances by adding them to dynamic host inventory.
How did you manage to format mount the filesystem on ec2 instances?

on the above code, we can see in creating volume task, we are passing the device name, I am using the same device name in formatting the volume task

I think you are running the ansible in ec2 instance. I was running on my local machine.

ya, the above ansible script is for managing ec2 instances.

I don't get any /dev/xvdf but /dev/nvme1n1 within ec2 instance when running lsblk (related to https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/device_naming.html#available-ec2-device-names and https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-using-volumes.html). To deduce it, I use something like below using facts from Ansible and matching volume id to device

   - name: Collect only facts about hardware
      setup:
        gather_subset:
        - hardware

    - name: Output dev name
      debug:
        var: "{{ hostvars[inventory_hostname].ansible_devices | dict2items | community.general.json_query(jmesquery) | first}}"
      vars:
        jmesquery: "[?length(value.links.ids)>`0` && contains(map(&contains(@, `{{ ec2_vol.volume_id.replace('vol-', '') }}`), value.links.ids), `true`)].key"