tmt: Add test for bootc examples build scripts

Add test-26-examples-build to validate that the bootc-bls and bootc-uki
example build scripts work correctly.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>
Signed-off-by: John Eckersberg <[email protected]>

Author: 2 people

examples/bootc-bls/extra/etc/dracut.conf.d/no-xattr.conf

@@ -1,6 +1,3 @@
-# we want to make sure the virtio disk drivers get included
-hostonly=no
-
 # we need to force these in via the initramfs because we don't have modules in
 # the base image
 force_drivers+=" virtio_net vfat "

examples/bootc-bls/extra/usr/lib/dracut/dracut.conf.d/37composefs.conf

@@ -1,6 +1,3 @@
-# we want to make sure the virtio disk drivers get included
-hostonly=no
-
 # we need to force these in via the initramfs because we don't have modules in
 # the base image
 force_drivers+=" virtio_net vfat "

examples/bootc-uki/extra/etc/dracut.conf.d/no-xattr.conf

@@ -53,3 +53,10 @@ execute:
     how: fmf
     test:
         - /tmt/tests/test-25-soft-reboot
+
+/test-26-examples-build:
+  summary: Test bootc examples build scripts
+  discover:
+    how: fmf
+    test:
+        - /tmt/tests/test-26-examples-build

examples/bootc-uki/extra/usr/lib/dracut/dracut.conf.d/37composefs.conf

@@ -0,0 +1,18 @@
+summary: Test bootc examples build scripts
+test: |
+    #!/bin/bash
+    set -eux
+
+    # Test bootc-bls example
+    echo "Testing bootc-bls example..."
+    cd examples/bootc-bls
+    ./build
+
+    # Test bootc-uki example
+    echo "Testing bootc-uki example..."
+    cd ../bootc-uki
+    ./build.base
+    ./build.final
+
+    echo "All example builds completed successfully"
+duration: 45m