在Apache和Mongrel上为Rails应用程序设置虚拟主机

Question

我有一个Linux服务器在Apache上运行3个站点。让我们叫他们RailsApp1，RailsApp2和SimpleApp。这两个Rails应用程序都在使用Mongrel集群。另一个应用程序只是一个HTML文件。我在Apache中为每个站点设置了不同的虚拟主机文件，为两个Rails站点设置了不同的mongrel_cluster.yml文件(所有这些代码都在底部)。

有了所有设置，我就可以启用Apache中的站点了。我可以为每个Rails站点启动Mongrel集群。而且，实际上，在我的浏览器中访问www.simpleapp.com和www.railsapp1.com也是很好的。然而，www.railsapp2.com给我带来了很多麻烦。服务器没有显示railsapp2的代码，而是返回用于railsapp1的HTML。如果我在Apache中禁用了railsapp1，然后转到www.railsapp2.com，服务器现在会返回simpleapp的HTML。只有当我在Apache中同时禁用railsapp1和railsapp2时，服务器才能正确地响应www.railsapp2.com上的请求。

对为什么会发生这种事有什么想法吗？

SimpleApp的VHOST文件：

<VirtualHost *:80>
  ServerName www.simpleapp.com
  ServerAlias simpleapp.com
  DocumentRoot /home/nudecanaltroll/public_html/simpleapp
</VirtualHost>

RailsApp1 1的VHOST文件：

<VirtualHost *:80>
  ServerName railsapp1.com
  DocumentRoot /home/nudecanaltroll/public_html/railsapp1/public
  RewriteEngine On
  <Proxy balancer://mongrel1>
    BalancerMember http://127.0.0.1:5000
    BalancerMember http://127.0.0.1:5001
    BalancerMember http://127.0.0.1:5002
  </Proxy>
  # Timeout in 30 seconds
  ProxyTimeout 30
  # Make sure people go to www.railsapp1.com, not railsapp1.com
  RewriteCond %{HTTP_HOST} ^railsapp1\.com$ [NC]
  RewriteRule ^(.*)$ http://www.railsapp1.com$1 [R=301,NE,L]
  # Redirect all non-static requests to thin
  RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
  RewriteRule ^/mongrel1(.*)$ balancer://mongrel1%{REQUEST_URI} [P,QSA,L]
  # Proxy Stuff
  ProxyPass / balancer://mongrel1/
  ProxyPassReverse / balancer://mongrel1/
  ProxyPreserveHost on
  <Proxy *>
    Order deny,allow
    Allow from all
  </Proxy>
  # Custom log file locations
  ErrorLog  /home/nudecanaltroll/public_html/railsapp1/log/error.log
  CustomLog /home/nudecanaltroll/public_html/railsapp1/log/access.log combined
</VirtualHost>

RailsApp2 2的VHOST文件：

<VirtualHost *:80>
  ServerName railsapp2.com
  DocumentRoot /home/nudecanaltroll/public_html/railsapp2/public
  RewriteEngine On
  <Proxy balancer://mongrel2>
    BalancerMember http://127.0.0.1:6000
    BalancerMember http://127.0.0.1:6001
    BalancerMember http://127.0.0.1:6002
  </Proxy>
  # Timeout in 30 seconds
  ProxyTimeout 30
  # Make sure people go to www.railsapp2.com, not railsapp2.com
  RewriteCond %{HTTP_HOST} ^railsapp2\.com$ [NC]
  RewriteRule ^(.*)$ http://www.railsapp2.com$1 [R=301,NE,L]
  # Redirect all non-static requests to thin
  RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
  RewriteRule ^/mongrel2(.*)$ balancer://mongrel2%{REQUEST_URI} [P,QSA,L]
  # Proxy Stuff
  ProxyPass / balancer://mongrel2/
  ProxyPassReverse / balancer://mongrel2/
  ProxyPreserveHost on
  <Proxy *>
    Order deny,allow
    Allow from all
  </Proxy>
  # Custom log file locations
  ErrorLog  /home/nudecanaltroll/public_html/railsapp2/log/error.log
  CustomLog /home/nudecanaltroll/public_html/railsapp2/log/access.log combined
</VirtualHost>

RailsApp1 1的mongrel_cluster.yml文件：

---
address: 127.0.0.1
log_file: log/mongrel.log
port: 5000
cwd: /home/nudecanaltroll/public_html/railsapp1
environment: production
pid_file: /home/nudecanaltroll/public_html/railsapp1/tmp/pids/mongrel.pid
servers: 3

RailsApp2 2的mongrel_cluster.yml文件：

---
address: 127.0.0.1
log_file: log/mongrel.log
port: 6000
cwd: /home/nudecanaltroll/public_html/railsapp2
environment: production
pid_file: /home/nudecanaltroll/public_html/railsapp2/tmp/pids/mongrel.pid
servers: 3

Answer 1

我想通了。由于我不知道的原因，我需要将ServerAlias设置为RailsApp2，并添加“www”。在ServerName前面。因此，railsapp2.com vhost文件的顶部现在看起来如下所示：

<VirtualHost *:80>
  ServerName www.railsapp2.com
  ServerAlias railsapp2.com
  ...

由于某些原因，RailsApp1不需要这些更改才能正常工作。