[chef] JSON Role files, attributes, and variable interpolation

[Mark Selby < >]

I use JSON based role files and for better or worse use them often  for attribute definition.

I have recently tried to perform variable interpolation like this

    "default_attributes": {

        "foo": {

            "server": "extra.#{node['fqdn']}"

          }

 

I was not surprised that this DID NOT work and that I got 'extra.#{node['fqdn']}' rather than an interpolated string.

Is there any way to interpolate in JSON role files?

Thanks