Nested Codeigniter apps not working in NGINX - codeigniter

Question

We've setup 2 CodeIgniter apps which has its own complete code bases on its own directories as in this example. Plus we also have wordpress blog on the same public_html directory.
public_html/HOME_APP
public_html/admin_tool/ADMIN_TOOL_CODES
public_html/blog/WORDPRESS_CODES
HOME_APP codes (CodeIgniter) and our WORDPRESS works fine. But the admin_tool (CodeIgniter) doesn't work. We can access only the http://example.com/admin_tool/index.php but not any inside controller pages. When accessing its show 404 error page. And it looks like the routes are handled via APP1
The nginx rules are as follows. Appreciate if anyone can help us to fix the issue with admin_tool
server{
listen 80;
root /home/ubuntu/websites/example.com/public_html;
index index.html index.htm index.php;
server_name example.com;
access_log /home/ubuntu/websites/example.com/logs/access.log;
error_log /home/ubuntu/websites/example.com/logs/error.log error;
location ~* \.(ico|css|js|gif|jpe?g|png)(\?[0-9]+)?$ {
expires max;
log_not_found off;
}
location / {
index index.php;
# Check if a file or directory index file exists, else route it to index.php.
try_files $uri $uri/ /index.php;
}
location ~ \.php$ {
try_files $uri =404;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
location ^~/admin_tool/ {
root /home/ubuntu/websites/example.com/public_html/admin_tool;
index index.php;
try_files $uri $uri/ /index.php$args;
}
}
server {
listen 443 ssl;
server_name example.com *.example.com;
return 301 http://$server_name$request_uri;
}

Answer 1

The following should do the trick for all of your installations:
# We define the index directory at the outermost level and therefore
# only once for all servers. Also note that we use the PHP file first
# because all main directories are handled by PHP scripts and this will
# give us best performance.
index index.php index.html index.htm;
server {
access_log /home/ubuntu/websites/example.com/logs/access.log;
error_log /home/ubuntu/websites/example.com/logs/error.log error;
# 80 is default!
#listen 80;
root /home/ubuntu/websites/example.com/public_html;
server_name example.com;
location / {
# Don't allow access to the logs directory.
location ~* ^/logs {
return 404;
}
# Don't allow access to PHP files.
location ~* \.php$ {
return 404;
}
# Handle static files.
location ~* \.(ico|css|js|gif|jpe?g|png)(\?[0-9]+)?$ {
expires max;
log_not_found off;
}
# Directly return if the requested URI is a real file.
try_files $uri $uri/ index.php =404;
}
# Codeigniter and WordPress will always handle everything with their
# index.php script, therefore we only need to catch that case.
location = /index.php {
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
server {
listen 443 ssl;
server_name example.com *.example.com;
return 301 http://$server_name$request_uri;
}

Answer 2

I had the same problem while I am using codeigniter in subfolder(dashboard).
All non-wordpress requests are not being entertained but remain on wordpress main page.
I fixed my issue by following lines in my configuration file /etc/nginx/sites-available/{my-site-name}
location /dashboard {
try_files $uri $uri/ /dashboard/index.php;
}
location /index.php {
fastcgi_pass unix:/usr/sbin/php5-fpm;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}