Forum: NGINX another "nested locations" question

I am interested in using a nesting of some sort so that I don't have to
duplicate all the proxy- and other directives for one "special case".

Basically, I'd like a very small subset of my webapp to also write to a
separate access-log.  When a user hits that particular page, I would
like to log it, AND also perform all the directives for the rest of the
site that are already configured.

Something like

location /site {
     location /site/search {
         access_log /var/log/nginx/search_access.log;
     }
     proxy_pass ...
     proxy_redirect off;
     proxy_set_header ...
}

So accessing /site/search should write an entry in the "special log
file", and then do all the "normal stuff" that location /site has 
itemized.

Is this possible?

Thanks again,
AJ

Hello!

On Tue, Sep 25, 2012 at 10:05:44PM -0400, AJ Weber wrote:

>
> file", and then do all the "normal stuff" that location /site has
> itemized.
>
> Is this possible?

Not exactly.  Each location is expected to have it's own "do
something" list, i.e. if you need proxy_pass in this location -
you have to write it explicitly.

On the other hand, there is no need to duplicate normal
configuration, e.g. proxy_redirect and proxy_set_header will be
inherited from previous level(s).  I.e. you have to write
explicitly only few directives which aren't inherited, notably
try_files, rewrite module directives, and content handlers like
proxy_pass.

In the above config snippet you have to duplicate proxy_pass into
location /site/search.

--
Maxim Dounin
http://nginx.com/support.html

OK, I am positive this is easy for you experienced nginx users!

I have a backend app server setup and am using nginx for
caching/proxy/ssl-termination.

I would like to use the "default" server (listening on 443) to redirect
the url https://host/monit to the server's monit-mini-http server (and
continue to use it for ssl termination).  so I need to direct the
backend to http://localhost:2812/.

Thus, I think I need a proxy_pass and a rewrite (to basically just
remove "/monit" from the url (pass the remainder of the url back to
monit's http server from root).  I was trying to do this inside a
location /monit { }.

But, of course, I can't get it to work. :(

Any hints?

On 26 Set 2012 21h00 CEST, aweber@comcast.net wrote:

> OK, I am positive this is easy for you experienced nginx users!
>
> I have a backend app server setup and am using nginx for
> caching/proxy/ssl-termination.
>
> I would like to use the "default" server (listening on 443) to
> redirect the url https://host/monit to the server's monit-mini-http
> server (and continue to use it for ssl termination).  so I need to
> direct the backend to http://localhost:2812/.


Very basic. No rewrites.

location ^~ /monit {
   location ~* ^/monit/(?<monit_request_uri>.*)$ {
       proxy_pass http://127.0.0.1:2812/$monit_request_uri;
       proxy_set_header Host $host;
}

Feel free to add other headers to your liking.

--- appa

On 26 Set 2012 23h56 CEST, appa@perusio.net wrote:

>> direct the backend to http://localhost:2812/.
>
>
> Very basic. No rewrites.
>
> location ^~ /monit {
> location ~* ^/monit/(?<monit_request_uri>.*)$ {
> proxy_pass http://127.0.0.1:2812/$monit_request_uri;
> proxy_set_header Host $host;
> }

Err, make that:

location ^~ /monit {
   location ~* ^/monit(?<monit_request_uri>.*)$ {
       proxy_pass http://127.0.0.1:2812/$monit_request_uri;
       proxy_set_header Host $host;
}

This way https://myserver/monit won't give a 404.

--- appa

On Thu, Sep 27, 2012 at 12:02:35AM +0200, Antnio P. P. Almeida wrote:
> >> redirect the url https://host/monit to the server's monit-mini-http
> > }
>
> Err, make that:
>
> location ^~ /monit {
>    location ~* ^/monit(?<monit_request_uri>.*)$ {
>        proxy_pass http://127.0.0.1:2812/$monit_request_uri;
>        proxy_set_header Host $host;
> }
>
> This way https://myserver/monit won't give a 404.

The regex is not required:

location ^~ /monit/ {
    proxy_pass http://127.0.0.1:2812/;
    proxy_set_header Host $host;
}

Requests to "/monit" will be redirected to "/monit/" automatically.


--
Igor Sysoev
http://nginx.com/support.html

So this probably will work if I have the access_log AND include a copy
of the proxy_pass directives in the nested location.  The
proxy_set_header, proxy_cache..., etc. would all be inherited
automatically in the nested location, so I can leave those in the 
parent?

Hello!

On Thu, Sep 27, 2012 at 09:05:47AM -0400, AJ Weber wrote:

> So this probably will work if I have the access_log AND include a
> copy of the proxy_pass directives in the nested location.  The
> proxy_set_header, proxy_cache..., etc. would all be inherited
> automatically in the nested location, so I can leave those in the
> parent?

Yes.  You actually can leave those on server or even http level,
and these directives will be inherited from there as well.

> >>
> >>     }
> >Not exactly.  Each location is expected to have it's own "do
> >In the above config snippet you have to duplicate proxy_pass into
> >location /site/search.
> >
>
> _______________________________________________
> nginx mailing list
> nginx@nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx

--
Maxim Dounin
http://nginx.com/support.html