>For now, to work around the issue, CentOS forum user sercan has provided the following commands to create
>a new SELinux policy for Nginx. I've tested it on two of my servers and it works.
> . . .

And there's one more quick workaround to get running very quickly. Not entirely recommended since this turns off SELinux for nginx (while leaving it on for everything else).

# semanage permissive -a httpd_t

With this setting I expect the audit.log file will fill quickly with many warning messages. Another reason why it is not a great idea except for emergencies. But it worked for me as a quick test. (Don't forget to set it back to enforcing later).

Richard