improve OVAL applicability check for bootc environment

check if /run/ostree-booted exists

Author: vojtapolasek

shared/applicability/oval/bootc.xml

@@ -5,6 +5,7 @@
       <criterion comment="kernel is installed" test_ref="bootc_platform_test_kernel_installed" />
       <criterion comment="rpm-ostree is installed" test_ref="bootc_platform_test_rpm_ostree_installed" />
       <criterion comment="bootc is installed" test_ref="bootc_platform_test_bootc_installed" />
+      <criterion comment="/run/ostree-booted exists" test_ref="bootc_platform_test_run_ostree_booted_exists" />
       <criterion comment="openshift-kubelet is not installed" test_ref="bootc_platform_test_openshift_kubelet_removed" />
     </criteria>
   </definition>
@@ -17,4 +18,13 @@
 {{{ oval_test_package_installed(package="rpm-ostree", test_id="bootc_platform_test_rpm_ostree_installed") }}}
 {{{ oval_test_package_installed(package="bootc", test_id="bootc_platform_test_bootc_installed") }}}
 {{{ oval_test_package_removed(package="openshift-kubelet", test_id="bootc_platform_test_openshift_kubelet_removed") }}}
+
+  <unix:file_test id="bootc_platform_test_run_ostree_booted_exists" check="all" check_existence="all_exist" comment="The file /run/ostree-booted exists" version="1">
+    <unix:object object_ref="bootc_platform_obj_run_ostree_booted_exists" />
+  </unix:file_test>
+
+  <unix:file_object id="bootc_platform_obj_run_ostree_booted_exists" comment="The file /run/ostree-booted exists" version="1">
+    <unix:filepath operation="equals">/run/ostree-booted</unix:filepath>
+  </unix:file_object>
+
 </def-group>