[e2e]: Add signal handler

[Callisto13]

Right now if I:

• Start the e2e tests make test-e2e or make test-e2e-docker
• Change my mind before they finish
• Hit ctrl-C (or whatever)

There is no cleanup:

• Any existing mvms created by the test will still be there
• Containerd will still be running
• Flintlockd will still be running
• The thinpool and loop devices will still be in place
• etc

in other words, annoying as you cannot re-run the test before manual cleanup

I should be able to CTRL+C in the middle of an e2e test run and still have the processes exit nicely and the cleanup run. I should be able to re-run the e2e tests immediately and see everything start from a blank slate.

Ginkgo does have a signal handler which does this, so that is an option. Otherwise we can roll our own.

[github-actions[bot]]

This issue is stale because it has been open 60 days with no activity.

[github-actions[bot]]

This issue is stale because it has been open 60 days with no activity.

[github-actions[bot]]

This issue is stale because it has been open 60 days with no activity.

[github-actions[bot]]

This issue was closed because it has been stalled for 365 days with no activity.