mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-11-04 16:07:03 +00:00
009858f18d
Automatic merge from submit-queue Fix subPath existence check to not follow symlink **What this PR does / why we need it**: Volume mounting logic introduced in #43775 and #45623 checks for subPath existence before attempting to create a directory, should subPath not be present. This breaks if subPath is a dangling symlink, os.Stat returns "do not exist" status, yet `os.MkdirAll` can't create directory as symlink is present at the given path. This patch makes existence check to use os.Lstat which works for normal files/directories as well as doesn't not attempt to follow symlink, therefore it's "do not exist" status is more reliable when making a decision whether to create directory or not. subPath symlinks can be dangling in situations where kubelet is running in a container itself with access to docker socket, such as CoreOS's kubelet-wrapper script **Release note**: ```release-note Fix pods failing to start when subPath is a dangling symlink from kubelet point of view, which can happen if it is running inside a container ```