Git Sync 4 support

[potiuk]

Body

Git Sync 4 - about to be released- introduces a lot of changes (including changed names for env variables).That heavily impacts our Helm Chart and we should fix those incompatiblities before the next release

Info about the changes here: https://github.com/kubernetes/git-sync/releases/tag/v4.0.0-rc2

Committer

• I acknowledge that I am a maintainer/committer of the Apache Airflow project.

[potiuk]

cc: @jedcunningham @dstandish @ephraimbuddy

[potiuk]

FYI: Our chart variables - for one - are completely not working (for example GIT_SYNC_WAIT -> GITSYNC_PERIOD.

[Swalloow]

Is anyone assigned? If not, I will do it.

[bakome]

I was able to implement git-sync v4 but faced interesting problem there. I also open a PR on git-sync because I think airflow instances can be heavily impacted by this weird behavior. In my case it was implementation with NFS, but this bug can be repeated with other implementations.

kubernetes/git-sync#827

[potiuk]

kubernetes/git-sync#827

Interesting. I see you proposed a fix (cool!)

[eladkal]

v4.1.0 is released with the fix of kubernetes/git-sync#828