Please ignore the last message, having learned a bit more about probing the file system we can now see that it is PHP that is caching the file to the system default location (hence rootfs) a small change to the PHP configuration has sorted this.
Thanks to everyone for your help Gary Posted at Nginx Forum: https://forum.nginx.org/read.php?2,275567,276162#msg-276162 _______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx