linux-builder: Add ephemeral option to delete VM's disk image on service restart
#1214
tfctest.yml
on: pull_request
test-stable
5m 9s
test-unstable
13m 17s
install-against-stable
3m 45s
install-against-unstable
4m 52s
install-flake-against-stable
2m 32s
install-flake-against-unstable
4m 36s