Node Local Storage Provisioning

[bensallen]

Add functionality to partition and format local storage.

A lot of our environments have local disk of some sort, where the nodes are running either in a "state-lite" mode, or just using the local disk for /tmp.

I started considering how this would be accomplished in Golang and came across https://github.com/diskfs/go-diskfs and https://github.com/nerd2/gexto, but these seem like unmaintainable approaches.

Instead perhaps this should be implemented as a container run via imageapi (eg. Alpine with parted, mkfs.*, mdadm, etc). Then add a Kraken module that provides the input configuration for this container.

[jlowellwofford]

Transfering to kraken-layercake

[jlowellwofford]

After digging through the native goland options for making filesystems, I concur, that doesn't seem to be a real option right now.

One way to handle this is to have your system image use cloud-init (or similar) and have cloud-init do the disk init.

I think the idea of having imageapi load initialization containers is pretty interesting, but it would require some enhancements to the imageapi for blocking container runs. Perhaps a front-end command that would fire up a container and wait for it to complete before returning, then clean it up? This could be pretty handy for side-car operations in general. Needs a little planning though.