fixup! python: Add script to work with systemd-nspawn

Signed-off-by: Nathan Chancellor <nathan@kernel.org>

python/scripts/sd_nspawn.py

@@ -104,6 +104,10 @@ def _add_dynamic_mounts(self, name):
                 self.data['Files']['Bind'].append(item)
 
         for mount in ro_mounts:
+            # If it is a temporary directory that does not exist already, just
+            # created it so that the next check passes.
+            if mount.startswith('/var/tmp'):
+                Path(mount).mkdir(exist_ok=True)
             if Path(mount).exists():
                 self.data['Files']['BindReadOnly'].append(mount)