On Wed, 25 May 2016, Neal P. Murphy wrote:
There is one possible solution. Have all VMs mount the virtual FS of tests
read-only. Then either give each VM its own writable virtual FS to store
results, or have each VM store results in a RAMFS and, when done, tar/cpio that
RAMFS into an unformatted (raw) COW virtual drive. The host would copy/move the
results from those virtual drives to permanent storage.
It might even be possible to create a virtual FS for each test case, and
hot-plug each, in turn, into a waiting idle test VM and mark the VM busy. The
VM runs the test, then signals the host (somehow) that it's done. The host
unplugs the virtual drive, stores the test result in the background, and marks
that VM idle.
that works for a full test run, but not so much when running a single
test. We typically run the test, detect failure (so we have the logs
on the host), then ssh into the running test nodes for a look to see
if we can find why it failed. eg run ipsec status, check network, etc.
In your suggested setup, you only get the logs when the machine is
no longer active.
Paul
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