diff -Nur appliance-tools-008.0.orig/tools/appliance-creator appliance-tools-008.0/tools/appliance-creator

--- appliance-tools-008.0.orig/tools/appliance-creator	2018-07-05 13:09:19.391655392 -0700

+++ appliance-tools-008.0/tools/appliance-creator	2018-07-05 13:12:11.185416692 -0700

@@ -168,8 +168,25 @@

     del forgettable

     return hack

+#

+# https://bugzilla.redhat.com/show_bug.cgi?id=1591804

+# Try and look up a unknown user in the chroot so it 

+# Opens and uses all the nss libraries in the chroot

+# Instead of doing so in the install root which might

+# Keep the libraries open and fail the build.

+#

+def do_unknown_user_hack():

+    import pwd as forgettable

+    try:

+        forgettable.getpwnam('fwefwkejkgre')

+    except:

+        pass

+    del forgettable

+    return

+

 if __name__ == "__main__":

     hack = do_nss_sss_hack()

+    do_unknown_user_hack()

     sys.exit(main())