+For a @single hostname@ setup, the certificate and its key need to be copied to a file named after @HOSTNAME_EXT@.
+
+For example, if @HOSTNAME_EXT@ is defined as @my-arvados.example.net@, the script will look for
+
+<notextile>
+<pre><code>${CUSTOM_CERTS_DIR}/my-arvados.example.net.crt
+${CUSTOM_CERTS_DIR}/my-arvados.example.net.key
+</code></pre>
+</notextile>
+
+For a @multiple hostnames@ setup, the script expects cert/key files with these basenames (matching the role except for <i>keepweb</i>, which is split in both <i>download / collections</i>):