Interpolating hiera variables in hiera itself

[Guy Knights]

Is it possible to reuse hiera variables within hiera itself? We have some cases where we have a value that needs to be changed before we deploy some code - it's not ideal, but for now it has to be done this way. The value is used within a hash structure that is somewhat complex, and this value is the only component of that hash that needs to change.

What I was hoping is that I could do something like this:

---

value: '1.1.0'

haproxy_frontends:

  http-in:

    ipaddress: '*'

    ports: '9000'

    options:

      acl:

        - "review_path url_sub version=%{game_version}"

      use_backend:

        - 'review if review_path'

      default_backend: 'current'

  

However, it doesn't seem like this is possible. If I try to do this, when 'haproxy_frontends' is used, nothing is output for %{game_version}.

Is there a way to actually do this?

Thanks,

Guy

[Guy Knights]

Well, wouldn't you know it but I just discovered the hiera() lookup function which does exactly what I want.

[Thomas Eichberger]

Would be great if you could post an example here :-) I cannot see yet how to use hiera() here.