[Ruby] rails question

[Alex Vollmer]

> so, i have a website hosted on a server with multiple vhosts.  we use
> Apache web server.  i want to create a calendar application and deploy
> it to my server.  I am not entirely sure how to do that.  I have rails
> apps using various single install solutions but that doesn't really work
> here.  So I guess my question is, how do you deploy a rails app to a
> multiple vhost server?
>
>
Raymond, if you're using Mongrel, check out
http://mongrel.rubyforge.org/docs/apache.html for details on hooking Mongrel
into apache. Essentially you have two main stanzas of apache configuration:
one for configuring the ProxyPass module and a virtual host for your mongrel
application. Here's a commented example:

### Load all the modules that are needed
LoadModule headers_module /usr/local/apache2/modules/mod_headers.so
LoadModule proxy_module /usr/local/apache2/modules/mod_proxy.so
LoadModule proxy_balancer_module
/usr/local/apache2/modules/mod_proxy_balancer.so
LoadModule proxy_http_module /usr/local/apache2/modules/mod_proxy_http.so
LoadModule rewrite_module /usr/local/apache2/modules/mod_rewrite.so

### Specific configuration for the proxy module
<IfModule mod_proxy.c>
        ProxyRequests Off
        <Proxy *>
                Order deny,allow
                Deny from all
                #Allow from .your_domain.com
        </Proxy>
        ProxyVia On
</IfModule>

### Declare a balancer configuration (referenced later)
<Proxy balancer://mongrel_cluster>
  BalancerMember http://127.0.0.1:8800
  BalancerMember http://127.0.0.1:8801
  BalancerMember http://127.0.0.1:8802
  BalancerMember http://127.0.0.1:8803
  BalancerMember http://127.0.0.1:8804
  BalancerMember http://127.0.0.1:8805
</Proxy>

### This is where you hook mongrel into apache
<VirtualHost *:80 *:443>
  ServerName www.example.com
  DocumentRoot /apps/myapp/current/public    ### This allows apache to serve
static files
  <Location "/">
    Order Allow,Deny
    Allow from all
  </Location>
</VirtualHost>

### This allows apache to work with all of the symlinks Capistrano creates
<Directory "/apps/myapp">
  Options FollowSymLinks
  AllowOverride None
  Order allow,deny
  Allow from all
</Directory>

### Specific configuration for the 'public' directory
<Directory "/apps/myapp/current/public">
  Options FollowSymLinks
  AllowOverride None
  Order Allow,Deny
  Allow from all

  ### The rewrite module is used to figure out what requests apache handles
  ### and which requests are passed to the mongrel cluster (via ProxyPass)
  RewriteEngine On

  # Check for maintenance file and redirect all requests
  RewriteCond /apps/portal/current/public/system/maintenance.html -f
  RewriteCond %{SCRIPT_FILENAME} !maintenance.html
  RewriteRule ^.*$ /system/maintenance.html [L]

  # Redirect all non-static requests to cluster
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteRule ^(.*)$ balancer://mongrel_cluster/$1 [P,QSA,L]
</Directory>

Hopefully that helps.

Cheers,

Alex V.

-- 
Musings and notes -- http://blog.livollmers.net