如何在执行模式下使用SELinux运行Flask + Nginx + uWSGI？

Question

我正在按照本教程在Nginx服务器上运行Flask.我几乎让它工作,其中页面在SELinux设置为时加载,Permissive但显示502 Bad GatewaySELinux何时处于Enforcing模式.

以下是一些相关文件:

myproject.ini

[uwsgi]
module = wsgi

master = true
processes = 5

socket = myproject.sock
chmod-socket = 660
vacuum = true

die-on-term = true

myproject.service

[Unit]
Description=uWSGI instance to serve myproject
After=network.target

[Service]
User=thisuser
Group=nginx
WorkingDirectory=/home/thisuser/public_html
Environment="PATH=/home/thisuser/thisuser_env/bin"
ExecStart=/home/thisuser/thisuser_env/bin/uwsgi --ini myproject.ini

[Install]
WantedBy=multi-user.target

thisuser.com.conf( Nginx配置)

server {
    listen  80;

    server_name thisuser.com www.thisuser.com;
    access_log /home/thisuser/logs/access.log;
    error_log /home/thisuser/logs/error.log;

    location / {
        include uwsgi_params;
        uwsgi_pass unix:/home/thisuser/public_html/myproject.sock;
        try_files $uri $uri/ =404;
    }

}

Flask文件+目录的位置是/home/thisuser/,它的上下文设置如下:

[root@dev ~]# ls -ldZ /home/thisuser/
drwx--x--x. thisuser thisuser unconfined_u:object_r:user_home_dir_t:s0 /home/thisuser/
[root@dev ~]# ls -ldZ /home/thisuser/public_html/
drwxrwxr-x. thisuser thisuser unconfined_u:object_r:httpd_sys_content_t:s0 /home/thisuser/public_html/

错误如下:

/var/log/audit/audit.log

type=AVC msg=audit(1498880449.864:156): avc:  denied  { write } for  pid=2667 comm="nginx" name="myproject.sock" dev="dm-2" ino=67165858 scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:httpd_sys_content_t:s0 tclass=sock_file
type=SYSCALL msg=audit(1498880449.864:156): arch=c000003e syscall=42 success=no exit=-13 a0=f a1=7f526e12e548 a2=6e a3=7ffdf52991b0 items=0 ppid=2666 pid=2667 auid=4294967295 uid=997 gid=995 euid=997 suid=997 fsuid=997 egid=995 sgid=995 fsgid=995 tty=(none) ses=4294967295 comm="nginx" exe="/usr/sbin/nginx" subj=system_u:system_r:httpd_t:s0 key=(null)

和

/home/thisuser/logs/error.log

2017/06/30 23:40:49 [crit] 2667#0: *1 connect() to unix:/home/thisuser/public_html/myproject.sock failed (13: Permission denied) while connecting to upstream, client: 192.168.1.15, server: thisuser.com, request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/home/thisuser/public_html/myproject.sock:", host: "thisuser.com"

试过的步骤:

• 尝试将sock权限更改为 chmod-socket = 666
• 用过的 setsebool -P httpd_can_network_connect 1
• 从改变user=thisuser为user=nginx
• 添加thisuser到该nginx组

唯一有效的是将SELinux改为Permissive.我可以做一些改变/补充,以便SELinux留下来Enforcing吗？

编辑: http(s)已被允许进入firewalld

[root@dev ~]# firewall-cmd --permanent --zone=public --add-service=https
[root@dev ~]# firewall-cmd --permanent --zone=public --add-service=http
[root@dev ~]# firewall-cmd --reload

Answer 1

您需要启用端口80才能semanage通过该端口发送流量。

semanage port -a -t http_port_t -p tcp 80

您可能还需要启用该端口firewalld：

firewall-cmd --zone=public --permanent --add-port=80/tcp