Plugin not working (cache folder not created)

So upon testing my nginx config file I meet the following error:
nginx: [warn] the “ssl” directive is deprecated, use the “listen … ssl” directive instead in /etc/nginx-rc/conf.d/wpwp.conf:28
nginx: [emerg] duplicate location “/” in /etc/nginx-rc/extra.d/wpwp.location.main.autoresize.conf:1
nginx: configuration file /etc/nginx-rc/nginx.conf test failed

To add, I was trying to append the autoresize.conf with the nginx code to the main nginx.conf as my managed hosting recommends this. Seems like there is an error in adding the nginx code which might be why it’s not working.

Hello, my friend,

One thing I need to make sure first is whether Apache is your main application server and Nginx your proxy/caching server. This is quite a common setup nowadays. Is that it?

If that is your setup, then there is nothing you need to configure in Nginx. You only need manual Nginx configuration if Nginx is your main application server.

Also, could you possibly share your website url with us, so that we can debug your images?

Cheers,
Takis

Hello Takis,

Thanks for your reply. Between last night and now, the image cache folder was created, but it is empty. I asked my managed host and this was their reply:

“Different from most setup, this stack does not fully proxying Apache2. It is called hybrid because NGINX and Apache2 does their own job.
NGINX is good at serving static files such as css,js,image and icon. And it is better at serving static files than Apache2. By using this stack, your static files will be served by NGINX and dynamic files will be served by Apache2 + FPM.”

So it seems like it’s a bit of both. This is on Runcloud by the way.

I managed to edit the the NginX conf file by adding only the following line as suggested by my host

rewrite .(?:jpe?g|gif|png)$ /wp-content/plugins/adaptive-images/adaptive-images-script.php;

However this breaks all images on my wordpress site. Neither having the experimental option checked with the above line or not works, so I removed the code and images work fine again.

Appending ?debug=true simply loads original file in browser. I can send the debug and site URL in private if it’s possible?

Also I read in another thread that images behind CSS don’t work. Almost all my images are behind CSS. Also I’m using Cloudflare. Would this be a dealbreaker for the plugin?

Thanks for your advice

• This reply was modified 6 years, 7 months ago by sastaran.

Hello, my friend,

Thank you for the information you have shared with me. I am really interested in debugging all possible setups and covering as many cases as possible.

What your host mentions is basically correct. However, it is not yet clear to me who serves your images in the first place. Is it Apache or Nginx? Does Nginx make HTTP requests back to Apache in order to obtain the images (let’s call this case A) and serve them to your users or does it obtain them from the filesystem and serve them directly (case B)?

If in case A, then Nginx is being used as a caching server/reverse proxy for your images and you do not need to add the rewrite rule to its configuration file at all.

If in case B, then Nginx is accessing your images directly and you do need to add the rewrite rule to its configuration file. But you have to put the rewrite rule in the correct place and it needs to have the correct path to the adaptive-images-script.php in it.

Also, sorry for mentioning that again, but it would really help if you could share your website url with us so that we can do some remote debugging. You can do it in private with an email to info [at] nevma [dot] gr if you would like.

Cheers,
Takis