John Howard 02fe71843e Windows: DetachVhd attempt in cleanup ... Signed-off-by: John Howard <jhoward@microsoft.com> This is a fix for a few related scenarios where it's impossible to remove layers or containers until the host is rebooted. Generally (or at least easiest to repro) through a forced daemon kill while a container is running. Possibly slightly worse than that, as following a host reboot, the scratch layer would possibly be leaked and left on disk under the dataroot\windowsfilter directory after the container is removed. One such example of a failure: 1. run a long running container with the --rm flag docker run --rm -d --name test microsoft/windowsservercore powershell sleep 30 2. Force kill the daemon not allowing it to cleanup. Simulates a crash or a host power-cycle. 3. (re-)Start daemon 4. docker ps -a PS C:\control> docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 7aff773d782b malloc "powershell start-sl…" 11 seconds ago Removal In Progress malloc 5. Try to remove PS C:\control> docker rm 7aff Error response from daemon: container 7aff773d782bbf35d95095369ffcb170b7b8f0e6f8f65d5aff42abf61234855d: driver "windowsfilter" failed to remove root filesystem: rename C:\control\windowsfilter\7aff773d782bbf35d95095369ffcb170b7b8f0e6f8f65d5aff42abf61234855d C:\control\windowsfilter\7aff773d782bbf35d95095369ffcb170b7b8f0e6f8f65d5aff42abf61234855d-removing: Access is denied. PS C:\control> Step 5 fails. (cherry picked from commit efdad53744) Signed-off-by: Sebastiaan van Stijn <github@gone.nl>		2018-11-09 23:31:49 +01:00
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windows.go	Windows: DetachVhd attempt in cleanup	2018-11-09 23:31:49 +01:00