Purging "stale" packages from a user

[mturok]

What is the right way to purge the "stale" packages for a user and have it reload it from the freshly created tarball?

(At the same time - is there some more documentation on where/how the volume manager works?)

MIchael

[tanmaykm]

Volumes implement the JBoxVol plugin interface. There are some code comments here: https://github.com/JuliaLang/JuliaBox/blob/58e9cd90c9fef4a2cb4dcc3d34cbca64642cbe35/engine/src/juliabox/vol/jbox_volume.py#L18

Updating package bundles on a live server works in the following manner:

• on each maintenance cycle (one in 5 minutes) a configuration record is looked up from the table dynconfig that holds the latest package bundle name and location (https://github.com/JuliaLang/JuliaBox/blob/58e9cd90c9fef4a2cb4dcc3d34cbca64642cbe35/engine/src/juliabox/vol/volmgr.py#L21)
• if the latest package is different from what is in use, it is downloaded (through JBP_BUCKETSTORE plugin) and extracted to a different folder
• the packages folder path is reset to the new folder (https://github.com/JuliaLang/JuliaBox/blob/58e9cd90c9fef4a2cb4dcc3d34cbca64642cbe35/engine/src/juliabox/plugins/vol_defpkg/defpkg.py#L82)
• new containers start using the use packages folder.
• old package folders are removed once all containers that were using them terminate (again checked as part of the maintenance cycle)

[mturok]

Thank you - but is there a way to force the purge? I wasn't seeing the maintenance cycle take effect -and much better to have some way of forcing the update.