volume_size parameter ignored in ec2 module

[Eli Finkelshteyn]

Hey Folks,

I've been banging my head against this for a few days with no luck. I'm trying to change the size of my default disk (/dev/xvda1) when spinning up new ec2 boxes with Ansible. I have the following:

- name: provision new boxes

 

  hosts: localhost

  gather_facts: False

  tasks:

    - name: Provision a set of instances

      ec2:

        group: "{{ aws_security_group }}"

        instance_type: "{{ aws_instance_type }}"

        image: "{{ aws_ami_id }}"

        region: "{{ aws_region }}"

        vpc_subnet_id: "{{ aws_vpc_subnet_id }}"

        key_name: "{{ aws_key_name }}"

        wait: true

        count: "{{ num_machines }}"

        instance_tags: "{{ tags }}"

        volumes:

        - device_name: /dev/sda1

          volume_size: 15
      register: ec2

Which should set my root device size to 15g. Instead, it just gets ignored and the root device is set to the default 8. What am I doing wrong?