Apache Alias和多个版本的代码库

Question

I am trying to run a versioned API from separate directories outside my Apache doc root.

My current approach is to try this with the Alias directive:

Alias /api/v1.2/ /var/www/api-v1.2/
Alias /api/v1.1/ /var/www/api-v1.1/

This is working fine, however I am using a PHP framework (Codeigniter) that uses mod_rewrite to route all requests to my index.php front controller:

RewriteCond %{REQUEST_URI} !=/server-status
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/?$1 [L]

I can access actual files via the URL, and the alias directive works fine. When I access a URL that the system means to rewrite, the request is served from the doc root.

How can I get my CI application to follow the Alias rules while still routing traffic to each respective front controller?

EDIT: to be clear, I have 3 separate versions of my CI codebase: 1 in the Apache doc root, and 2 others in each aliased directory. I want to route requests to the correct version of the codebase based on the URL (defaulting to the doc root if no Alias is matched).

/var/www/html (doc root)
/var/www/api-v1.2
/var/www/api-v1.1

Answer 1

So, the problem is that you aren't preventing your initial .htaccess from rewriting the folders.

You will need 3 .htaccess files, one in the root and one in each of the v1.1 and v1.2 folders.

Root (docroot):

RewriteEngine on
RewriteBase /
RewriteCond %{REQUEST_URI} !=/server-status
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond $1 !^(index\.php|robots\.txt|api/v1.1|api/v1.2)
RewriteRule ^(.*)$ index.php/$1 [L]

The important line being the last RewriteCond where it tells apache to ignore the api folders.

api-v1.1 folder:

RewriteEngine on
RewriteBase /api/v1.1
RewriteCond %{REQUEST_URI} !=/server-status
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond $1 !^(index\.php|robots\.txt)
RewriteRule ^(.*)$ index.php/$1 [L]

api-v1.2 folder:

RewriteEngine on
RewriteBase /api/v1.2
RewriteCond %{REQUEST_URI} !=/server-status
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond $1 !^(index\.php|robots\.txt)
RewriteRule ^(.*)$ index.php/$1 [L]

The important lines being RewriteBase. This tells apache the directory we're working in and will process the rewrites based on its designation.