rails nginx puma 在 /etc/nginx/sites-enabled 中复制上游“puma”

Question

我已经为本教程设置了我的服务器（https://coderwall.com/p/ttrhow/deploying-rails-app-using-nginx-puma-and-capistrano-3）

当我使用一个项目时，一切正常，但是当我将另一个项目添加到此 VPS 时，出现错误 [emerg] 20737#0: duplicate upstream "puma" in /etc/nginx/sites-enabled/vsejalreg:1

我的 nginx 配置

upstream puma {
  server unix:///home/deployer/apps/vsejalreg/shared/tmp/sockets/vsejalreg-puma.sock;
}

server {
  listen 80;
  server_name wjreg.rubyserv.ru www.wjreg.rubyserv.ru;

  root /home/deployer/apps/vsejalreg/current/public;
  access_log /home/deployer/apps/vsejalreg/current/log/nginx.access.log;
  error_log /home/deployer/apps/vsejalreg/current/log/nginx.error.log info;

  location ^~ /assets/ {
    gzip_static on;
    expires max;
    add_header Cache-Control public;
  }

  try_files $uri/index.html $uri @puma;
  location @puma {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;

    proxy_pass http://puma;
  }

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

和

upstream puma {
  server unix:///home/deployer/apps/register/shared/tmp/sockets/register-puma.sock;
}

server {
  listen 80;
  server_name ws.rubyserv.ru www.ws.rubyserv.ru;

  root /home/deployer/apps/register/current/public;
  access_log /home/deployer/apps/register/current/log/nginx.access.log;
  error_log /home/deployer/apps/register/current/log/nginx.error.log info;

  location ^~ /assets/ {
    gzip_static on;
    expires max;
    add_header Cache-Control public;
  }

  try_files $uri/index.html $uri @puma;
  location @puma {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;

    proxy_pass http://puma;
  }

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

当我一一添加nginx配置时 - 一切正常！

如何修复这个包或 puma 不适用于许多项目？

谢谢！

Answer 1

请注意，您还需要更改此部分：

location @puma {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;

    proxy_pass http://puma;
  }

否则你会遇到这样的错误 - nginx: [emerg] host not found in upstream "puma" in /etc/nginx/sites-enabled/furnitureapp:25

因此，如果您将上游重命名为

upstream puma_register

您还需要将您的 proxy_pass 重命名为

location @puma {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;

    proxy_pass http://puma_register; <------ Change here
  }

Answer 2

Puma 可与任何正确配置的项目配合使用:) 您只需配置一次命名的上游（上游 puma），而不是对每个服务器配置进行配置。如果每个服务器需要不同的 puma 实例，只需使用不同的名称设置上游即可。

upstream puma_vsejalreg {
  server unix://...PATH.../vsejalreg-puma.sock;
}
upstream puma_register {
  server unix://...PATH.../register-puma.sock;
}