Add integration test build for retain feature

Author: schaefi

build-tests/x86/tumbleweed/test-image-disk/appliance.kiwi

@@ -6,6 +6,10 @@
         <contact>[email protected]</contact>
         <specification>Disk test build</specification>
     </description>
+    <profiles>
+        <profile name="Standard" description="Standard Disk"/>
+        <profile name="Retain" description="Retain Last Partition"/>
+    </profiles>
     <preferences>
         <version>1.42.1</version>
         <packagemanager>zypper</packagemanager>
@@ -16,16 +20,39 @@
         <rpm-check-signatures>false</rpm-check-signatures>
         <bootsplash-theme>breeze</bootsplash-theme>
         <bootloader-theme>openSUSE</bootloader-theme>
+    </preferences>
+    <preferences profiles="Standard">
         <type image="oem" filesystem="btrfs" kernelcmdline="console=ttyS0" firmware="efi" installiso="true" bootpartition="false" btrfs_root_is_snapshot="true" installboot="install">
             <bootloader name="grub2" console="serial" timeout="10"/>
             <oemconfig>
                 <oem-unattended>true</oem-unattended>
+                <oem-swap>true</oem-swap>
+                <oem-swapsize>1024</oem-swapsize>
+                <oem-multipath-scan>false</oem-multipath-scan>
+            </oemconfig>
+            <systemdisk>
+                <volume name="home"/>
+            </systemdisk>
+        </type>
+    </preferences>
+    <preferences profiles="Retain">
+        <type image="oem" filesystem="btrfs" kernelcmdline="console=ttyS0 rd.kiwi.install.retain_last" firmware="efi" installiso="true" bootpartition="false" btrfs_root_is_snapshot="true" installboot="install" spare_part="0" spare_part_is_last="true">
+            <bootloader name="grub2" console="serial" timeout="10"/>
+            <oemconfig>
+                <oem-unattended>true</oem-unattended>
+                <oem-swap>true</oem-swap>
                 <oem-swapsize>1024</oem-swapsize>
+                <!-- set root partition to fixed 2048MB -->
+                <oem-systemsize>2048</oem-systemsize>
                 <oem-multipath-scan>false</oem-multipath-scan>
+                <!-- data part (spare) is last, no auto resize from us -->
+                <oem-resize>false</oem-resize>
             </oemconfig>
             <systemdisk>
                 <volume name="home"/>
             </systemdisk>
+            <!-- whole disk must be big enough for fixed root + other -->
+            <size unit="M">3100</size>
         </type>
     </preferences>
     <users>