Is it possible to use YAML node references in role task?

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Should it be possible to use YAML references in roles task to reference node from vars or defaults file? (I’m using ansible 2.0)

E.g I have vars/main.yml:

`

docker_defaults: &docker_defaults
name: “{{name}}”

`

And then want to use this reference in tasks/main.yml:

`

  • docker: *docker_defaults
    `

If no is there a way to add non-task YAML node to tasks/main.yml so then I could reference it from the same file?