Add peqp to monthly backups

[icyflame]

@amrav The peqp/ folder resides inside /srv/mediawiki in the nginx container. So, we need to put that file into the archive that is prepared here. If my understanding is correct, I can go ahead and try to solve this.

[amrav]

I've been thinking that the best way to add static assets (images, peqp) to the wiki server is to put them into a separate "static assets" volume, and serve them out of a different path (eg. /srv/static). This has the advantage of making the mediawiki volume completely ephemeral - right now, we lose images and peqp every time we redeploy. Then the backup container could do backups from the static assets volume.

This would require some changes to the nginx container though, to add configuration for serving the static assets. What do you think?

[icyflame]

I understand this a bit more now. I will read through the existing code and documentation and try to figure out how we would do this. For now, I think there should be a volume called "static" which will be accesible at /srv/static inside the nginx container (defined in the docker-compose.override.yml file)

This is only preliminary and probably incorrect, I will post something for you to review soon.

[icyflame]

27 puts peqp in the static volume, this issue has become a lot easier. I am changing the tags to let newcomers know that this is a good issue to begin with.

It involves changing the backup script to include the /srv/static/peqp folder (if it exists) inside the backup archive.

Also, the prod configuration needs to be edited to allow the static-volume to be mounted at /srv/static inside the backup container as well.

(cc @amrav and @hargup)

[harshkhandeparkar]

Closing this since peqp will no longer be part of the wiki.