为什么我在生产中看不到我的应用程序而不是默认的 nginx 测试页面？

Question

按照以下链接enter link description here 中概述的使用 Unicorn 和 nginx 在 digitalocean 中部署 Rails 应用程序的所有步骤之后 ，在浏览器中输入我的 IP 地址会导致我进入默认的 nginx 登录页面，上面写着：“这是在 Fedora 上与 nginx 一起分发的默认 index.html 页面。它位于 /usr/share/nginx/html。

您现在应该将您的内容放在您选择的位置，并在 nginx 配置文件 /etc/nginx/nginx.conf 中编辑根配置指令。

这是我的 etc/nginx/ngingx.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;

    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 default_server;
        server_name  localhost;
        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 {
 #        }
 #    }

这里是 /etc/nginx/conf.d/default.conf ：

upstream app {
    # Path to Unicorn SOCK file, as defined previously
    server unix:/tmp/unicorn.myapp.sock fail_timeout=0;
}

 server {


    listen 80;
    server_name localhost;

    # Application root, as defined previously
    root /root/my_app/public;

    try_files $uri/index.html $uri @app;

    location @app {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_pass http://app;
     }

    error_page 500 502 503 504 /500.html;
    client_max_body_size 4G;
    keepalive_timeout 10;
}  

还有 config/unicorn.rb

#application root path
app_root = "/var/www/mav"

# Set the working application directory
# working_directory "/path/to/your/app"
working_directory app_root

# Unicorn PID file location
# pid "/path/to/pids/unicorn.pid"
pid "#{app_root}/tmp/pids/unicorn.pid"

# Path to logs
# stderr_path "/path/to/log/unicorn.log"
# stdout_path "/path/to/log/unicorn.log"
stderr_path "#{app_root}/log/unicorn.log"
stdout_path "#{app_root}/log/unicorn.log"

# Number of processes
# worker_processes 4
worker_processes 2

# Time-out
timeout 30

访问独角兽日志时：

tail -20 /var/log/nginx/error.log


2017/12/10 05:06:30 [warn] 8810#0: conflicting server name "localhost" on 0.0.0.0:80, ignored
2017/12/10 05:06:30 [warn] 8818#0: conflicting server name "localhost" on 0.0.0.0:80, ignored
2017/12/10 05:08:31 [error] 8826#0: *2 open() "/usr/share/nginx/html/favicon.ico" failed (2: No such file or directory), client: 190.104.119.69, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "138.197.195.201", referrer: "http://138.197.195.201/"
2017/12/10 05:29:51 [warn] 19171#0: conflicting server name "localhost" on 0.0.0.0:80, ignored
2017/12/10 05:29:51 [warn] 19176#0: conflicting server name "localhost" on 0.0.0.0:80, ignored
2017/12/10 05:43:49 [warn] 12191#0: conflicting server name "localhost" on 0.0.0.0:80, ignored
2017/12/10 05:43:50 [warn] 12203#0: conflicting server name "localhost" on 0.0.0.0:80, ignored
2017/12/10 06:01:29 [warn] 11819#0: conflicting server name "localhost" on 0.0.0.0:80, ignored
2017/12/10 06:01:30 [warn] 11825#0: conflicting server name "localhost" on 0.0.0.0:80, ignored
2017/12/10 06:01:48 [error] 11833#0: *1 directory index of "/var/www/mav/" is forbidden, client: 100.12.198.208, server: localhost, request: "GET / HTTP/1.1", host: "138.197.195.201"
2017/12/10 06:01:50 [error] 11833#0: *1 directory index of "/var/www/mav/" is forbidden, client: 100.12.198.208, server: localhost, request: "GET / HTTP/1.1", host: "138.197.195.201"
2017/12/10 06:01:52 [error] 11833#0: *1 directory index of "/var/www/mav/" is forbidden, client: 100.12.198.208, server: localhost, request: "GET / HTTP/1.1", host: "138.197.195.201"
 2017/12/10 06:04:57 [error] 11833#0: *4 directory index of "/var/www/mav/" is forbidden, client: 100.12.198.208, server: localhost, request: "GET / HTTP/1.1", host: "138.197.195.201"
2017/12/10 06:04:58 [error] 11833#0: *4 directory index of "/var/www/mav/" is forbidden, client: 100.12.198.208, server: localhost, request: "GET / HTTP/1.1", host: "138.197.195.201"
2017/12/10 06:04:59 [error] 11833#0: *4 directory index of "/var/www/mav/" is forbidden, client: 100.12.198.208, server: localhost, request: "GET / HTTP/1.1", host: "138.197.195.201"
2017/12/10 06:04:59 [error] 11833#0: *4 directory index of "/var/www/mav/" is forbidden, client: 100.12.198.208, server: localhost, request: "GET / HTTP/1.1", host: "138.197.195.201"
2017/12/10 06:11:38 [emerg] 30474#0: unknown directive "And" in /etc/nginx/nginx.conf:91
 2017/12/10 06:12:10 [emerg] 31474#0: unknown directive "And" in /etc/nginx/nginx.conf:91
2017/12/10 06:19:31 [emerg] 12641#0: unexpected end of file, expecting "}" in /etc/nginx/nginx.conf:89
2017/12/10 06:43:30 [emerg] 24459#0: unexpected end of file, expecting "}" in /etc/nginx/nginx.conf:89

Answer 1

有几个错误配置。由于您没有提供全部，我将它们列在这里，然后您可以自己检查

1. 您的代码所在的文件夹在哪里？
   我假设它在/var/www/mav 中，正如您在config/unicorn.rb 中所写的那样。这将是您的起点。
2. nginx.conf 的根应该是 /var/www/mav/public
3. 您应该删除/var/www/mav/public 文件夹中的所有index.html 文件

4. 你的NginX监听了Unicorn的unix socket，但是你的unicorn.rb没有配置。
   这是我从您的设置文档中得到的信息

   # Unicorn socket
   listen "/tmp/unicorn.[app name].sock"
   listen "/tmp/unicorn.myapp.sock"
   

5. 启动unicorn后，你应该检查它是否正确启动（例如：通过日志，通过@​​987654330@命令...）

P/S：你的 NginX 配置名称应该是 etc/nginx/nginx.conf（没有最后一个 g）