Subtle changes, bugs and feedback

You use s3 don't you? Don't forget the data transfer costs will go up with bigger files...

We don't have a bandwidth charge from S3.

What I do instead:

1. Proxy S3 behind our app (long term durable storage)
   
2. Rename all files to their SHA1 hash
   
3. Serve all files from /api/files
   
4. Put an nginx file cache in front of /api/files (long term slow cache)
   
5. Put Cloudflare in front of nginx (short term fast cache)
   
6. Configure a Cloudflare Page Rule to cache everything
   
   

The only bandwidth we ever incur is the very first GET of a file after it's uploaded.

I really focused on this when our S3 cost became our biggest cost.

Now our Linode costs are our biggest costs (at just over £310 per month).

So it's just storage really... and that isn't so bad.