[release/0.14] WCOW: restore support for client-mounted roots (#2595)#2659
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anmaxvl merged 1 commit intomicrosoft:release/0.14from Apr 6, 2026
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Commit 00ca088 broke starting process-isolated containers when Root.Path is set in the container spec. Root.Path is set by clients such as Docker which mount and unmount the container's root filesystem themselves. Mounting is skipped, which also skips over setting coi.mountedWCOWLayers. The hcsoci.createWindowsContainerDocument function unconditionally dereferences that field, resulting in a nil-dereference panic when mounting is skipped. Restore the old behaviour by synthesizing the MountedWCOWLayers when Root.Path is set. Signed-off-by: Cory Snider <csnider@mirantis.com> (cherry picked from commit fa457e6) Signed-off-by: Brian Goff <cpuguy83@gmail.com>
anmaxvl
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rerunning tests. they're flaky. |
anmaxvl
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Apr 3, 2026
helsaawy
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Apr 6, 2026
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Commit 00ca088 broke starting process-isolated containers when Root.Path is set in the container spec. Root.Path is set by clients such as Docker which mount and unmount the container's root filesystem themselves. Mounting is skipped, which also skips over setting coi.mountedWCOWLayers. The
hcsoci.createWindowsContainerDocument function unconditionally dereferences that field, resulting in a nil-dereference panic when mounting is skipped. Restore the old behaviour by synthesizing the MountedWCOWLayers when Root.Path is set.
(cherry picked from commit fa457e6)