How can I take off www(sub-domain) if url contains it? - nginx

Question

I've just switched from Apache to Nginx.
Then I'm stucked with this problem.
When I was using Apache, first www(sub-domain) could be removed automatically by having this .htaccess
If I want the same on Nginx, how can I do that?
Here's my old .htaccess
.htaccess (I was using this when I was using Apache)
Options +FollowSymLinks -MultiViews
# Turn mod_rewrite on
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^www\.(test-sample-site\.com)$ [NC]
RewriteRule ^ http://%1%{REQUEST_URI} [R=301,L]
Then here's my current conf for Nginx
etc/nginx/conf.d/rails.conf
upstream sample {
ip_hash;
server unix:/var/run/unicorn/unicorn_sample.sock fail_timeout=0;
}
server {
listen 80;
server_name sample.jp;
root /var/www/html/sample/public;
location /wiki {
alias /usr/share/wiki;
index index.php;
}
location ~ ^/wiki.+\.php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_split_path_info ^/wiki(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME /usr/share/wiki$fastcgi_script_name;
include /etc/nginx/fastcgi_params;
}
location / {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_redirect off;
if (!-f $request_filename) {
proxy_pass http://sample;
break;
}
}
location ~ ^/assets|system/ {
expires 1y;
add_header Cache-Control public;
log_not_found off;
}
}
UPDATE
upstream sample {
ip_hash;
server unix:/var/run/unicorn/unicorn_sample.sock fail_timeout=0;
}
server {
listen 80;
server_name sample.jp;
root /var/www/html/sample/public;
location /wiki {
alias /usr/share/wiki;
index index.php;
}
location ~ ^/wiki.+\.php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_split_path_info ^/wiki(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME /usr/share/wiki$fastcgi_script_name;
include /etc/nginx/fastcgi_params;
}
location / {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_redirect off;
if (!-f $request_filename) {
proxy_pass http://sample;
break;
}
}
location ~ ^/assets|system/ {
expires 1y;
add_header Cache-Control public;
log_not_found off;
}
}
server { # <== redirection server block
server_name www.sample.jp;
return 301 sample.jp$request_uri;
}

Answer 1

Add this server block to your config ( at the bottom or top, but outside the other server block )
server {
server_name www.sample.jp;
return 301 sample.jp$request_uri;
}
Your can add it to your config like this
upstream sample { # <== upstream block
# ...
}
server { # <== server block
# ....
}
server { # <== redirection server block
server_name www.sample.jp;
return 301 sample.jp$request_uri;
}
As for what it would do, the $request_uri will append every thing that was in the original URL to the new one, for example
http://www.example.com/a/b/c
$request_uri = /a/b/c
new URL will be
http://example.com/a/b/c
I believe it should append the query string too, the ?x=y part in http://example.com/a/b?x=y