gitlab_rails['ldap_servers'] question

[famfop]

I'm trying to fill the template with my node's configuration. I've stumbled upon the gitlab_rails['ldap_servers'] configuration which confuses me. I use hiera to fill in the template, which is easy for simple 'variables' but the ldap_servers key has multiple lines which may subsequently be templated, too.
The relevant part of my template so far, which I wish to exchange for your great template, looks as follows:

 gitlab_rails['ldap_servers'] = YAML.load <<-'EOS' # remember to close this block with 'EOS' below
   main: # 'main' is the GitLab 'provider ID' of this LDAP server
     label: <%= @gitlab_rails['ldap_servers']['label'] %>
     host: <%= @gitlab_rails['ldap_servers']['host'] %>
     port: <%= @gitlab_rails['ldap_servers']['port'] %>
     uid: <%= @gitlab_rails['ldap_servers']['uid'] %>
     method: <%= @gitlab_rails['ldap_servers']['method'] %> # "tls" or "ssl" or "plain"
     bind_dn: <%= @gitlab_rails['ldap_servers']['bind_dn'] %>
     password: <%= @gitlab_rails['ldap_servers']['password'] %>
     active_directory: <%= @gitlab_rails['ldap_servers']['active_directory'] %>
     allow_username_or_email_login: <%= @gitlab_rails['ldap_servers']['allow_username_or_email_login'] %>
     block_auto_created_users: false
     base: <%= @gitlab_rails['ldap_servers']['base'] %>
     <% if gitlab_rails['ldap_servers'].has_key? 'user_filter' -%>
     user_filter: <%= @gitlab_rails['ldap_servers']['user_filter'] %>
     <% else -%>
     user_filter: ''
     <% end -%>
     username: <%= @gitlab_rails['ldap_servers']['username'] %>
     email:    <%= @gitlab_rails['ldap_servers']['email'] %>

     # If no full name could be found at the attribute specified for `name`,
     # the full name is determined using the attributes specified for
     # `first_name` and `last_name`.
     name:       <%= @gitlab_rails['ldap_servers']['name'] %>
     first_name: 'givenName'
     last_name:  'sn'

     ## EE only
     <% if gitlab_rails['ldap_servers'].has_key? 'group_base' -%>
     group_base: <%= @gitlab_rails['ldap_servers']['group_base'] %>
     <% else -%>
     group_base: ''
     <% end -%>
     admin_group: ''
     <% if gitlab_rails['ldap_servers'].has_key? 'sync_ssh_keys' -%>
     sync_ssh_keys: <%= @gitlab_rails['ldap_servers']['sync_ssh_keys'] %>
     <% end -%>
EOS

How can I accomplish the same with hiera (edit: using your template...)? I am willing to set each ldap_servers-part as its own block - if there is no nicer way possible -, too, but I am not familiar enough to understand how to do it with hiera. Could you please provide me with a simple example? It does not necessarily need to set all of the above settings, just for me to get me started.

EDIT2: This question is obviously quite general and not only restricted to ldap_servers. also gitlab_rails['omniauth_providers'] is a similar case, where I was setting each parameter independently.

On second thought, I feel like it would be nice to add those (special) multi-line-settings explicitly in the template, such that subsequent parameters may be set more consistently defined in a hiera file.

[famfop]

Sorry, I did not notice it says in the README already.