Ruby on rails Puma未在ROR中与nginx合作

我正在手动使用此命令

bundle exec puma -e production -b unix:///var/www/rails_apps/agarcents/shared/tmp/sockets/puma.sock

我的服务器工作正常。我可以访问url，但当我用nginx绑定套接字时，我无法访问服务器

我的nginx配置是

upstream puma_agarscents { 
  server unix:/var/www/rails_apps/agarcents/shared/tmp/sockets/puma.sock fail_timeout=0;
}

server {
  listen 80;
  server_name x.x.x.x; # change to match your URL
  root /var/www/rails_apps/agarcents/current/public;

  listen 443 ssl;

  location / {
    proxy_pass http://puma_agarscents;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }

  ssl_certificate /etc/nginx/ssl/nginx.crt;
  ssl_certificate_key /etc/nginx/ssl/nginx.key;

  location ~* ^/assets/ {
    # Per RFC2616 - 1 year maximum expiry
    expires 1y;
    add_header Cache-Control public;

    # Some browsers still send conditional-GET requests if there's a
    # Last-Modified header or an ETag header even if they haven't
    # reached the expiry date sent in the Expires header.
    add_header Last-Modified "";
    add_header ETag "";
    break;
  }
}

获取以下错误

2015/05/14 05:34:31[错误]6802#0:*79连接（）到 unix:/var/www/rails\u apps/agarcents/shared/tmp/sockets/puma.sock失败 （11：资源暂时不可用）连接到上游时， 客户端：x.x.x.x，服务器：x.x.x.x，请求：“获取” /favicon.ico HTTP/1.1“，上游： "", 主持人：“x.x.x.x”

---

检查socket permissions.srwxrwx这是sockets的权限和所有父目录的权限

namei-l/var/www/rails\u apps/agarcents/shared/tmp/sockets/puma.sock

每个父目录都有相同的权限。这可能是selinux的问题。我不擅长，但你可以检查一下