Rewrite mirrored request

[Roman Arutyunyan]

Hello Jurian,

On Mon, May 28, 2018 at 03:38:45PM +0200, Jurian Broertjes wrote:
> Hi All,
> 
> I'm trying to do a simple rewrite of a mirrored request, see the snippet
> below. I'm under the impression that mirrored requests somehow cannot be
> rewritten. Is this the case or am I doing something wrong here? Is there
> some other way to get the job done?
> 
>   location / {
>     mirror /mirror;
> ....
>     proxy_pass http://slave;
>   }
> 
>   location /mirror {
>     internal;
> 
>     rewrite prd-solr solr;
>     proxy_pass http://cloud;
>   }

Mirror requests can be rewritten.  But keep in mind that a mirror subrequest
has a different URI than the original request.  In your case it's /mirror.
So unless 'prd-solr' matches it, rewrite will not happen.

Normally $request_uri is used to access the original request URI in a mirror
subrequest.

-- 
Roman Arutyunyan