Hi everyone,
I’m trying to set up safe file downloading with Nginx. My config file
stripped down to most important elements looks like this:
upstream tempurl {
server tempurl:8888;
}
upstream storage {
server storage:8888;
}
server {
listen 8888;
location / {
proxy_pass http://tempurl;
}
location /storage {
root storage_cache;
try_files $uri @storage;
}
location @storage {
rewrite ^/storage/(.*) /$1 break;
proxy_pass http://storage;
proxy_store storage_cache$uri;
}
}
The idea is that a user obtains somehow a temporary URL to a file and
asks my server for it. Then my server asks the “tempurl” server to
resolve it to real file name. The “tempurl” server returns
X-Accel-Redirect header with real path to the file. The file is
located on “storage” server, so we download it from there and
simultaneously mirror it by using try_files and proxy_store
directives.
My question is: The “tempurl” server can send X-Accel-Buffering header
and I can use proxy_buffering directive. How will these two interact
with proxy_store? I’d like to avoid unnecessary disk reads/writes and
avoid blocking worker by sending response to a user with slow
connection. Where should I use buffering and where shouldn’t I in the
above situation?
Regards,
Mike