502 Bad Gateway error with python app running uwsgi and nginx (centos)

Question

Seen this question asked but all seemed to be Ubuntu and the solutions didn't quite work for me on Centos. I have a flask app trying to run from uwsgi and am getting

2017/07/26 17:44:24 [crit] 22785#0: *7 connect() to unix:/home/myname/perm_check/index.sock failed (13: Permission denied) while connecting to upstream, client: 127.0.0.1, server: 127.0.0.1, request: "GET / HTTP/1.1", upstream: "uwsgi://unix:/home/myname/perm_check/index.sock:", host: "127.0.0.1"

(it runs fine from virtualenv to localhost:500 or localhost:8000 with wsgi as per this https://www.digitalocean.com/community/tutorials/how-to-serve-flask-applications-with-uwsgi-and-nginx-on-centos-7 tutorial.

Here are my files: index.ini

[uwsgi]
module = wsgi

master = true
processes = 5

socket = index.sock
chmod-socket = 664
vacuum = true

die-on-term = true

index.py

from flask import Flask
app = Flask(__name__)

@app.route("/")
def check():
    return "<h1 style='color:red'>Test run...</h1>"


if __name__ == "__main__":
    app.run(host='0.0.0.0')

nginx.conf

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    fastcgi_buffers 8 16k;
    fastcgi_buffer_size 32k;


    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;

    server {
    listen 80;
    server_name 127.0.0.1;

    location / {
        include uwsgi_params;
        uwsgi_pass unix:/home/myname/perm_check/index.sock;
        }
    }

    server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
        }

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
    }

# Settings for a TLS enabled server.
#
#    server {
#        listen       443 ssl http2 default_server;
#        listen       [::]:443 ssl http2 default_server;
#        server_name  _;
#        root         /usr/share/nginx/html;
#
#        ssl_certificate "/etc/pki/nginx/server.crt";
#        ssl_certificate_key "/etc/pki/nginx/private/server.key";
#        ssl_session_cache shared:SSL:1m;
#        ssl_session_timeout  10m;
#        ssl_ciphers HIGH:!aNULL:!MD5;
#        ssl_prefer_server_ciphers on;
#
#        # Load configuration files for the default server block.
#        include /etc/nginx/default.d/*.conf;
#
#        location / {
#        }
#
#        error_page 404 /404.html;
#            location = /40x.html {
#        }
#
#        error_page 500 502 503 504 /50x.html;
#            location = /50x.html {
#        }
#    }

}

I know I'm missing something simple somewhere but I can't for the life of me figure it out. Permissions for everything is myname:myname and I'm trying to run the uwsgi service from 127.0.0.1.

Answer 1

解决了此问题，需要禁用SELinux并重新启动服务器