MySQL 8.0 Release Notes
        MySQL 8.0 Source Code Documentation
        
        The default TCP port for mysqld is
        3306; and the SELinux context type used is
        mysqld_port_t.
      
        If you configure mysqld to use a different
        TCP port, you may need to set
        the context for the new port. For example to define the SELinux
        context for a non-default port such as port 3307:
      
semanage port -a -t mysqld_port_t -p tcp 3307To confirm that the port is added:
$> semanage port -l | grep mysqld
mysqld_port_t                  tcp      3307, 1186, 3306, 63132-63164