[wip] Backup location

[zamentur]

The problem

We need to be able to backup and restore easily on remote location. Current solution (borg app, archivist) made easier to create a daily backup but the restore operation is quite difficult to do.

Solution

To improve the current app archivist_ynh and borg_ynh, this app create a repository subcategory, to be able to check backup are correctly made and to select them for restoration.

It integrates a borg connector to backup remotely.

See http://pad.arn-fai.net/p/yunohost-backup-api

PR Status

• [x] Make local borg working
• [x] Make remote borg working
• [x] Be able to list files in an archive
• [x] Be able to mount an archive somewhere
• [x] Optimize selective extraction
• [x] Change actionmap to support all new arguments
• [x] Predebug
• [x] Debug timer
• [x] Improve pruning
• [x] Debug legacy tar method
• [x] Debug hook method
• [ ] Debug support self hosting federation client and write SHF server part
• [ ] Debug borg repo encryption settings
• [ ] Diagnosis alert on failed backup
• [x] Readd a repo without reinstalling
• [ ] Download archive from borg :/
• [ ] Go through all fixme / todo
• [x] Add a default repository settings and change actionmap call to get a better backward compatibility
• [ ] Fix property name empty when listing or getting info
• [ ] Migration to publish the ssh public key and create default repository (local-borg and local-legacy)
• [ ] Check correctly the fingerprint on the first connection on a remote repository
• [ ] Webadmin
• [ ] write i18n pattern error
• [ ] write unit tests
• [ ] Write some comments on each function
• [x] Write an example of custom backup methods
• [ ] Compatibility with current remote backup (borg app, borg tuto, archivist, outputdir uncompress) ?
• [ ] Rewrite documentation

Maybe:

• [ ] write Restic integration
• [ ] Debug borg repo update
• [ ] Find a way to check archive integrity by checking weight of .sql for example
• [ ] Find a way to detect if a backup disk is not mounted as usual
• [ ] Find a way to not block yunohost command when backup is running (cause it could be looooong the first time)
• [ ] Check if servers could be in the same building ?
• [ ] Evaluate speed connexion
• [ ] Mount tar archive with ratarmount

How to test

apt install borgbackup
yunohost backup repository add local-borg
yunohost backup create -r local-borg
yunohost backup list
yunohost backup restore local-borg ARCHIVE

Validation

• [ ] Principle agreement 0/2 :
• [ ] Quick review 0/1 :
• [ ] Simple test 0/1 :
• [ ] Deep review 0/1 :