Migrating Yii2 from Apache to Nginx - failed on backend app - php

Question

I try to move my Yii2 app from using apache to nginx. I'm using Yii2 advanced template on a single domain, so I follow the solution from this link creating a symlink from frontend/web to the backend/web. This solution works fine when I'm using apache, but when I try to use nginx I can't open the backend app.
The frontend app works fine, but when I try to open the backend app using app.local/belakang, it is redirected to app.local/belakang/site/login, but still stuck in the frontend app and therefore giving a [yii\web\HttpException:404] exception 'yii\base\InvalidRouteException' with message 'Unable to resolve the request "belakang/site/login".'
Here is the symlinks that I have on the frontend/web directory :
lrwxrwxrwx 1 vagrant vagrant 17 Jun 24 14:03 belakang -> ../../backend/web
and this is the nginx vhost config that I use:
server {
charset utf-8;
client_max_body_size 128M;
listen 80; ## listen for ipv4
server_name app.local;
root /var/www/html/frontend/web;
index index.php;
location / {
# Redirect everything that isn't a real file to index.php
try_files $uri $uri/ /index.php$is_args$args;
}
# deny accessing php files for the /assets directory
location ~ ^/assets/.*\.php$ {
deny all;
}
location ~ \.php$ {
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_pass unix:/var/run/php5-fpm.sock;
try_files $uri =404;
}
location ~* /\. {
deny all;
}
}
Can anyone help so that I can open the backend app from app.local/belakang ?

Answer 1

Fix it myself by adding config below
location ^~ /belakang {
try_files $uri $uri/ /belakang/index.php$is_args$args;
location ~ /\.(ht|svn|git) {
deny all;
}
location ~ \.php$ {
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_pass unix:/var/run/php/php5-fpm.sock;
try_files $uri =404;
}
}