Updated Version of the apache http caching setup for snac, including proxy media
I already wrote about caching here
Now I extended what I cache a bit.
This was because after enabling Option to proxy media I've seen access to the file paths /x/ and /y/ in addition to the path were snac stores the media that I include in my own posts ( /s/ ).
There are two locations to proxy media, depending if you requests the media via the mastodonapi or via the web. (/x/ and /y/), oh and I added the nodeinfo2 path too, because I've noticed it was queried all the time by a lot of instances and it gives me pleasure to see something cached handed out in the access logs 🙂 (I guess it is actaully irrelevant for the system resources).
This is the updated setup:
Enable the relevant modules:
a2enmod expires cache cache_disk
Be sure "htcacheclean" is running to clean up old disk cache. (under debian see /etc/default/apache-htcacheclean or else the relevant systemd service or whatever)
Then add to the snac Virtualhost config:
<LocationMatch "^/social/[^/]+/[xys]/|^/social/nodeinfo_2_0">
CacheEnable disk
Header set Cache-Control "max-age=86400, public" "expr=%{REQUEST_STATUS} == 200"
ExpiresActive On
ExpiresDefault "access plus 86400 seconds"
</LocationMatch>
This will use the disk cache to cache everything under the /s/, /x/ and /y/ Path, as well as for /$username/nodeinfo
20, utilizing the mod_expires to generate the appropriate cache headers (for lazy ones like me), In this case caching it for 1 day.
Further reading and all options explained under
https://httpd.apache.org/docs/2.4/caching.html (and ff)
The Header that I set here, on the condition of Status code 200, is needed for the path /y/, because snac defaults to set
no-cache on that location and the mod
expires will honor that if we don't override it. I set it to the same Cache-Control value as modexpores woud. (mod_expires will additionally calculate the date and put that in the
expiresheader. (hence the name I guess 😀 )
#Fediverse #Hosting #ITNotes #apache2 #httpd #Ownyourdata #Server #Snac #Snac2 #Tipsandtricks #Tutorial #Debian #caching
