Graceful shutdown - Closing display window, using tart stop, or ctrl+c

[mbentley]

I wasn't sure if this was something that was worth putting in an issue but it seems to me that when I either close the display window (if one is active), use tart stop..., or use ctrl+c, the VM process is being killed instead of doing any sort of graceful shutdown. I am not sure if this is anticipated but I have seen other solutions where it looks like they're using an agent running inside of the VM to initiate a clean, graceful shutdown.

Seems like if I am concerned about stateful data, this could lead to potential data issues.

[fkorotkov]

Right now Tart deliberately just request the VM to stop. This is done purely for optimizing for scenario of creation one-off ephemeral VMs that you delete right away after running. There is a way to request a stop but in this case there will be just the window hanging:

I'd recommend to incorporate sudo -S shutdown -h now similary to how Tart Packer Plugin does:

https://github.com/cirruslabs/packer-plugin-tart/blob/b25da725f429c5cddcb146f37e381596929efd2f/builder/tart/step_run.go#L105-L107

Alternatively, if you are running Sonoma host and guest via tart run --resumable then closing a window will actually suspend your VM. Check out this video on how it works.

[mbentley]

Thanks for that. I should have included that my use cases are all Linux based today, semi-stateful (trying to slowly move to stateless arm64 VMs for native Docker image builds).