Increase_EBS_Root_Volume.yml

- name : Expand EBS Root Volume
  hosts: "{{host}}"
  user: ubuntu
  serial: 1
  gather_facts: True

  vars:
    expected_volume: "21"


  tasks:
    - ec2_metadata_facts:

    - name: Get root volume for the instance
      shell: "aws ec2 describe-instances --filters Name=instance-id,Values={{ansible_ec2_instance_id}} --query Reservations[].Instances[].RootDeviceName --region {{ansible_ec2_placement_region}} --output text"
      register: root_device
      delegate_to: localhost

    - name: Get volume id for the instance
      command: "aws ec2 describe-volumes --region {{ansible_ec2_placement_region}} --filters Name=attachment.instance-id,Values={{ansible_ec2_instance_id}} --query 'Volumes[*].VolumeId' --output text"
      register: volumeid
      delegate_to: localhost

    - name: Get volume size for the instance
      command: "aws ec2 describe-volumes --region {{ansible_ec2_placement_region}} --filters Name=attachment.instance-id,Values={{ansible_ec2_instance_id}} --query 'Volumes[*].Size' --output text"
      register: volumesize
      delegate_to: localhost

    - debug:
        msg: "Volumeid: {{ volumeid.stdout_lines }}"

    - debug:
        msg: "Volume Size: {{ volumesize.stdout|int }}"

    - name: Find volume to expand
      set_fact:
        expand_volume: "{{ expected_volume|int - volumesize.stdout|int }}"

    - block:
      - shell: "aws ec2 modify-volume --size {{expected_volume|int}} --volume-id {{volumeid.stdout}} --region={{ansible_ec2_placement_region}}"
        register: volume_update_result
        delegate_to: localhost

      - debug:
          msg: "Volume expansion response: {{ volume_update_result }}"

      - name: Recheck if volume is expanded or not
        command: "aws ec2 describe-volumes --region {{ansible_ec2_placement_region}} --filters Name=attachment.instance-id,Values={{ansible_ec2_instance_id}} --query 'Volumes[*].Size' --output text"
        when:
          - volume_update_result.failed == False
        register: newvolumesize
        until:
          - newvolumesize.stdout == expected_volume
        retries: 10
        delay: 5
        delegate_to: localhost

      - name: Get block device
        shell: "lsblk -r| grep -w /| awk '{print $1}'"
        when:
          - newvolumesize.stdout == expected_volume
        register: sblock_device

      - name: Expand block device only for xvda
        shell: "sudo growpart /dev/xvda 1"
        register: xvda_growpart_out
        when: (sblock_device.stdout == "xvda1")

      - name: Expand block device only for nvme0n1
        shell: "sudo growpart /dev/nvme0n1 1"
        register: nvme_growpart_out
        when: (sblock_device.stdout == "nvme0n1p1")
        ignore_errors: True

      - name: Resize block device for xvda
        shell: "sudo resize2fs /dev/{{sblock_device.stdout}}"
        when:
          - sblock_device.stdout == "xvda1"
          - xvda_growpart_out.stdout | search('CHANGED')
        register: xvda_resize_out

      - name: Resize block device for nvme
        shell: "sudo resize2fs /dev/{{sblock_device.stdout}}"
        when:
          - sblock_device.stdout == "nvme0n1p1"
          - nvme_growpart_out.stdout | search('CHANGED')
        register: nvme_resize_out

      - name: Get the new modified root volume
        shell: "df -h|grep -w /"
        register: modified_root

      - debug:
          msg: "New root volume: {{ modified_root.stdout }}"

      when:
        - "{{ expand_volume|int }} > 0"
        - root_device.stdout == '/dev/sda1'