fsGroup check will be enforcing that if a volume has already been
mounted by one pod and another pod wants to mount it but has a different
fsGroup value, this mount operation will not be allowed.
this is a workaround for the unmount device issue caused by gci mounter. In GCI cluster, if gci mounter is used for mounting, the container started by mounter script will cause additional mounts created in the container. Since these mounts are irrelavant to the original mounts, they should be not considered when checking the mount references. By comparing the mount path prefix, those additional mounts can be filtered out.
Plan to work on better approach to solve this issue.
# *** ERROR: *** docs are out of sync between cli and markdown
# run hack/run-gendocs.sh > docs/kubectl.md to regenerate
#
# Your commit will be aborted unless you regenerate docs.
COMMIT_BLOCKED_ON_GENDOCS
Serguei Bezverkhi