允许使用 nginx/php-fpm 在 EL8 中使用 SELinux 升级 Wordpress

我正在尝试允许直接在 Web 界面上使用 Wordpress 升级（不是插件更新）。

除了这个特性之外，我已经让 SELinux 可以工作。当试图确定应该允许的内容时，我无法准确找到需要更改的内容，而不是将整个重新标记/path/to/wordpress/directory为unconfined_u:object_r:httpd_sys_rw_content_t:s0

以下是我尝试通过 Web 界面升级时发生的情况：

==> /var/log/nginx/kosen.energy.access.log <==
172.21.1.28 - - [22/Jul/2021:14:21:27 -0300] "POST /wp-cron.php?doing_wp_cron=1626974487.4410700798034667968750 HTTP/1.0" 200 0 "https://kosen.energy/wp-cron.php?doing_wp_cron=1626974487.4410700798034667968750" "WordPress/5.7.2; https://kosen.energy"
172.21.1.28 - - [22/Jul/2021:14:21:29 -0300] "GET /wp-admin/update-core.php HTTP/1.0" 200 155053 "https://kosen.energy/wp-admin/update-core.php?action=do-core-upgrade" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Safari/605.1.15"

==> /var/log/audit/audit.log <== type=AVC msg=audit(1626974498.501:10696): avc:  denied  { write } for  pid=9658 comm="php-fpm" name="update-core.php" dev="dm-0" ino=101266980 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:httpd_sys_content_t:s0 tclass=file permissive=0

==> /var/log/nginx/error.log <== 2021/07/22 14:21:38 [error] 9646#0: *38349 FastCGI sent in stderr: "PHP message: PHP Warning:  copy(/var/www/html/kosen.energy/wp-admin/includes/update-core.php): failed to open stream: Permission denied in /var/www/html/kosen.energy/wp-admin/includes/class-wp-filesystem-direct.php on line 309" while reading upstream, client: 172.21.1.28, server: _, request: "POST /wp-admin/update-core.php?action=do-core-upgrade HTTP/1.0", upstream: "fastcgi://unix:/run/php-fpm/www.sock:", host: "kosen.energy", referrer: "https://kosen.energy/wp-admin/update-core.php"

==> /var/log/nginx/kosen.energy.access.log <==
172.21.1.28 - - [22/Jul/2021:14:21:38 -0300] "POST /wp-admin/update-core.php?action=do-core-upgrade HTTP/1.0" 200 150059 "https://kosen.energy/wp-admin/update-core.php" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Safari/605.1.15"

在我wp-config.conf已经有了FS_METHOD：direct

/** Enable proper support for updates without FTP/FTPS. */
define('FS_METHOD', 'direct');

php-fpm已经以nginx用户身份运行：

[root@kosen kosen.energy]# grep user /etc/php-fpm.d/www.conf | grep -v \;
user = nginx
listen.acl_users = apache,nginx

附加信息：

[root@kosen kosen.energy]# rpm -qa | egrep "php-fpm|nginx"
nginx-mod-http-xslt-filter-1.14.1-9.0.1.module+el8.0.0+5347+9282027e.x86_64
nginx-mod-http-image-filter-1.14.1-9.0.1.module+el8.0.0+5347+9282027e.x86_64
nginx-mod-http-perl-1.14.1-9.0.1.module+el8.0.0+5347+9282027e.x86_64
nginx-mod-mail-1.14.1-9.0.1.module+el8.0.0+5347+9282027e.x86_64
nginx-1.14.1-9.0.1.module+el8.0.0+5347+9282027e.x86_64
nginx-all-modules-1.14.1-9.0.1.module+el8.0.0+5347+9282027e.noarch
nginx-filesystem-1.14.1-9.0.1.module+el8.0.0+5347+9282027e.noarch
nginx-mod-stream-1.14.1-9.0.1.module+el8.0.0+5347+9282027e.x86_64
php-fpm-7.4.6-4.module+el8.3.0+7685+72d70b58.x86_64

谢谢。