Help with setting ephemeral volume on EC2

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1

I’m struggling with adding ephemeral volume to EC2 instance on creation
Base on examples, I use the following task, but its look like its ignored with out any error message.
What am I’m doing wrong?

Thanks

`

  • name: Launch instances
    local_action:
    module: ec2
    region: “{{region}}”
    keypair: “{{key_name}}”
    group: “{{security_group}}”
    instance_type: “{{instance_type}}”
    image: “{{image}}”
    count: “{{cluster_nodes}}”
    volumes:
  • device_name: /dev/xvdb
    ephemeral: ephemeral0
  • device_name: /dev/xvdc
    ephemeral: ephemeral1
    wait: yes
    register: ec2_cluster

`

2

I’m using ansible 1.9.1

3

What type of instance you are using, because not all instances comes with ephemeral