Example of conditional automount map in chef templates

auto.direct.erb

/dlt/repo storage.
/dlt/users storage.
<% if node['application'] %>
/dlt/<%= node['application'] %> -local storage.dlt/ifs/data/<%= node['application'] %>
/dlt/<%= node['application'] %> -local storage.dlt/ifs/data/<%= node['application'] %>
<% end %>

dna.json

{
  "provider": "rackspace",
  "environments": ["staging", "beta", "production"],
  "passenger_ruby_version": "2.1.0",
  "application": "dbhosting",
  "run_list": [
    "role[rails_server]",
    "role[postgresql_server]",
  ]
}