Cheap SharePoint -> Wordpress fail-over help request

Server NGINX
1

We have nginx setup as a reverse proxy and on one of the backend servers
we have a Sharepoint website that we want to failover to a Wordpress
website hosted on another server if there’s a problem with Sharepoint
website. I’ve googled and red through books etc but can’t we an example
for this. I think i need “try_files” and some type of error code
checking but havent been able to figure it out. Could someone advice ?
Below is the type of thing that I think I am after.

Thanks for looking.
Keith

upstream primaryserver { server 10.1.1.1:80; }
upstream secondaryserver { server 10.1.1.2:80; }

server
{
listen 80;
server_name _;
server_name_in_redirect off;

 location /

{
try_files @sharepoint @wordpress;
}
location @sharepoint
{
proxy_pass http://primaryserver;
proxy_set_header Host $host;
proxy_connect_timeout 3;
proxy_next_upstream error timeout;
}

location @wordpress
{
proxy_pass http://secondaryserver;
proxy_set_header Host $host;
proxy_connect_timeout 3;
proxy_next_upstream error timeout;
}

}

2

On Tue, Oct 11, 2011 at 10:39:43AM +0100, keith wrote:

{
location @wordpress
{
proxy_pass http://secondaryserver;
proxy_set_header Host $host;
proxy_connect_timeout 3;
proxy_next_upstream error timeout;
}

}

“try_files” tries files, but not proxied requests.
There are two way to fallback to backup servers:

  1. upstream sharepoint {
    server primaryserver;
    server secondaryserver backup;
    }

    server {
    location / {
    proxy_pass http://sharepoint;
    proxy_set_header Host $host;
    proxy_connect_timeout 3;
    }
    }

  2. server {
    location / {
    proxy_pass http://primaryserver;
    proxy_set_header Host $host;
    proxy_connect_timeout 3;
    proxy_intercept_errors on;
    error_page 502 504 @wordpress;
    }

     location @wordpress {
     proxy_pass http://secondaryserver;
     proxy_set_header Host $host;
     proxy_connect_timeout 3;
 }

    }

–
Igor S.

3

Try files refers to local files so that wont work. You need a failover
in
the upstream.

4

On 11/10/2011 10:50, Igor S. wrote:

Keith
location /

There are two way to fallback to backup servers:
proxy_set_header Host $host;
proxy_intercept_errors on;

Cheers Igor, Option 2 seems to be working for us !! So thanks for the
quick answers. I think we just need to setup the correct error codes
now.

Below is the current configuration that seems to be working.

upstream primaryserver { server 10.0.0.xx:80; }
upstream secondaryserver { server 10.0.0.xx:80; }

server
{
listen 80;
server_name www.somewebsites.com;
server_name_in_redirect off;

location /
{
proxy_pass http://primaryserver;
proxy_set_header Host $host;
proxy_connect_timeout 3;
proxy_intercept_errors on;
error_page 400 403 502 504 @wordpress;
}

location @wordpress
{
proxy_pass http://secondaryserver;
proxy_set_header Host $host;
proxy_connect_timeout 3;
}
}