Enhanced private network exercise

Doc/Sdi/CloudProvider/gettingStarted.xml

@@ -1227,20 +1227,24 @@ resource "hcloud_volume" "volume01" {
                 role="red">vol01</emphasis>" {
   size = 10  ....
 }
-resource "hcloud_server" "helloServer" {
-  user_data    = templatefile("userData.yml.tpl", {
-    <emphasis role="blue">volume01Id</emphasis> = hcloud_volume.<emphasis
-                role="red">vol01</emphasis>.id # No cycle
+resource "hcloud_server" "hello" {
+  user_data = templatefile(
+    "userData.yml.tpl", {
+       # No cycle
+       <emphasis role="blue">volId</emphasis>=hcloud_volume.<emphasis
+                role="red">vol01</emphasis>.id
   })  ...
 }
-resource "hcloud_volume_attachment" "main" {
-  volume_id = hcloud_volume.<emphasis role="red">vol01</emphasis>.id
-  server_id = hcloud_server.helloServer.id
+resource "hcloud_volume_attachment"
+  "main" {
+  volume_id=hcloud_volume.<emphasis role="red">vol01</emphasis>.id
+  server_id=hcloud_server.hello.id
 }</programlisting></td>
 
-          <td valign="top"><programlisting language="bash">echo `/bin/ls /dev/disk/by-id/*${<emphasis
-                role="blue">volume01Id</emphasis>}` 
- /<emphasis role="red">vol01</emphasis> xfs discard,nofail,defaults 0 0 &gt;&gt; /etc/fstab</programlisting></td>
+          <td valign="top"><programlisting language="bash">echo 
+ `/bin/ls /dev/disk/by-id/*${<emphasis role="blue">volId</emphasis>}` 
+ /<emphasis role="red">vol01</emphasis> xfs discard,nofail,defaults 0 0
+  &gt;&gt; /etc/fstab</programlisting></td>
         </tr>
       </informaltable>
     </figure>
@@ -1392,7 +1396,25 @@ resource "hcloud_network_route" "gateway"{
                   linkend="sdi_cloudProvider_networks_qanda_httpGateway"/>.</para>
                 </note>
               </listitem>
+
+              <listitem>
+                <para>Provide <xref linkend="glo_DNS"/> names to be used on
+                your two hosts locally by defining
+                <filename>/etc/cloud/templates/hosts.debian.tmpl</filename>
+                accordingly.</para>
+              </listitem>
             </orderedlist>
+
+            <tip>
+              <para>Variables of <code
+              xlink:href="https://developer.hashicorp.com/terraform/language/values/variables">type
+              = object</code> are your friend:</para>
+
+              <programlisting language="tf">privateSubnet = {
+  dnsDomainName  = "intern.g3.hdm-stuttgart.cloud"
+  ipAndNetmask   = "10.0.1.0/24"
+}</programlisting>
+            </tip>
           </question>
         </qandaentry>
       </qandadiv>