doc: most yaml samples in ccd format

doc/tutorial/intro-to-autoinstall.rst

@@ -149,84 +149,89 @@ The structure of an autoinstall configuration
 
 See the :ref:`ai` for full details on the supported autoinstall directives.
 
-A minimal autoinstall configuration is:
+A minimal autoinstall configuration in
+:external+cloud-init:ref:`user_data_formats-cloud_config` format looks like:
 
 .. code-block:: yaml
 
-    version: 1
-    identity:
-        hostname: hostname
-        username: username
-        password: $crypted_pass
+    #cloud-config
+    autoinstall:
+        version: 1
+        identity:
+            hostname: hostname
+            username: username
+            password: $crypted_pass
 
 Here is an example file that shows off most features:
 
 .. parsed-literal::
 
-    :ref:`ai-version`: 1
-    :ref:`ai-reporting`:
-        hook:
-            type: webhook
-            endpoint: http\://example.com/endpoint/path
-    :ref:`ai-early-commands`:
-        - ping -c1 198.162.1.1
-    :ref:`ai-locale`: en_US
-    :ref:`ai-keyboard`:
-        layout: gb
-        variant: dvorak
-    :ref:`ai-network`:
-        network:
-            version: 2
-            ethernets:
-                enp0s25:
-                   dhcp4: yes
-                enp3s0: {}
-                enp4s0: {}
-            bonds:
-                bond0:
-                    dhcp4: yes
-                    interfaces:
-                        - enp3s0
-                        - enp4s0
-                    parameters:
-                        mode: active-backup
-                        primary: enp3s0
-    :ref:`ai-proxy`: http\://squid.internal:3128/
-    :ref:`ai-apt`:
-        primary:
-            - arches: [default]
-              uri: http\://repo.internal/
-        sources:
-            my-ppa.list:
-                source: "deb http\://ppa.launchpad.net/curtin-dev/test-archive/ubuntu $RELEASE main"
-                keyid: B59D 5F15 97A5 04B7 E230  6DCA 0620 BBCF 0368 3F77
-    :ref:`ai-storage`:
-        layout:
-            name: lvm
-    :ref:`ai-identity`:
-        hostname: hostname
-        username: username
-        password: $crypted_pass
-    :ref:`ai-ssh`:
-        install-server: yes
-        authorized-keys:
-          - $key
-        allow-pw: no
-    :ref:`ai-snaps`:
-        - name: go
-          channel: 1.20/stable
-          classic: true
-    :ref:`ai-debconf-selections`: |
-        bind9      bind9/run-resolvconf    boolean false
-    :ref:`ai-packages`:
-        - libreoffice
-        - dns-server^
-    :ref:`ai-user-data`:
-        disable_root: false
-    :ref:`ai-late-commands`:
-        - sed -ie 's/GRUB_TIMEOUT=.\*/GRUB_TIMEOUT=30/' /target/etc/default/grub
-    :ref:`ai-error-commands`:
-        - tar c /var/log/installer | nc 192.168.0.1 1000
+    #cloud-config
+    autoinstall:
+        :ref:`ai-version`: 1
+        :ref:`ai-reporting`:
+            hook:
+                type: webhook
+                endpoint: http\://example.com/endpoint/path
+        :ref:`ai-early-commands`:
+            - ping -c1 198.162.1.1
+        :ref:`ai-locale`: en_US
+        :ref:`ai-keyboard`:
+            layout: gb
+            variant: dvorak
+        :ref:`ai-network`:
+            network:
+                version: 2
+                ethernets:
+                    enp0s25:
+                       dhcp4: yes
+                    enp3s0: {}
+                    enp4s0: {}
+                bonds:
+                    bond0:
+                        dhcp4: yes
+                        interfaces:
+                            - enp3s0
+                            - enp4s0
+                        parameters:
+                            mode: active-backup
+                            primary: enp3s0
+        :ref:`ai-proxy`: http\://squid.internal:3128/
+        :ref:`ai-apt`:
+            primary:
+                - arches: [default]
+                  uri: http\://repo.internal/
+            sources:
+                my-ppa.list:
+                    source: "deb http\://ppa.launchpad.net/curtin-dev/test-archive/ubuntu $RELEASE main"
+                    keyid: B59D 5F15 97A5 04B7 E230  6DCA 0620 BBCF 0368 3F77
+        :ref:`ai-storage`:
+            layout:
+                name: lvm
+        :ref:`ai-identity`:
+            hostname: hostname
+            username: username
+            password: $crypted_pass
+        :ref:`ai-ssh`:
+            install-server: yes
+            authorized-keys:
+              - $key
+            allow-pw: no
+        :ref:`ai-snaps`:
+            - name: go
+              channel: 1.20/stable
+              classic: true
+        :ref:`ai-debconf-selections`: |
+            bind9      bind9/run-resolvconf    boolean false
+        :ref:`ai-packages`:
+            - libreoffice
+            - dns-server^
+        :ref:`ai-user-data`:
+            disable_root: false
+        :ref:`ai-late-commands`:
+            - sed -ie 's/GRUB_TIMEOUT=.\*/GRUB_TIMEOUT=30/' /target/etc/default/grub
+        :ref:`ai-error-commands`:
+            - tar c /var/log/installer | nc 192.168.0.1 1000
 
 
 Error handling