finally fixing the selinux exception

roles/rke2/selinux/my-openstack.te

@@ -7,9 +7,10 @@ require {
         class lnk_file read;
         class file read;
         class file write;
+        class file open;
 }
 
 #============= container_t ==============
 allow container_t cert_t:dir read;
 allow container_t cert_t:lnk_file read;
-allow container_t cert_t:file {read write};
+allow container_t cert_t:file {open read write};
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