concatenate variables and strings in file lookup

Hey so I have a list of developer names in a dictionary and I am trying to do a file lookup on their ssh key,

I want to dynamically build the file path for each key as opposed to specifying it the full path for each developer.

Here is my task:

`

moustaches don't stack and concatenation (+) does not work outside moustaches:

authorized_key: user=root key="{{ lookup('file', role_path +
'/files/public_keys/' + item.1) }}"

Ha, awesome. Thanks a lot Brian, you are the man…