Eric Yang created YARN-9391:
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Summary: Disable PATH variable to be passed to Docker container
Key: YARN-9391
URL: https://issues.apache.org/jira/browse/YARN-9391
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Eric Yang
This is observed from using Apache NiFi docker image. It makes assumption that
PATH variable contains /bin to reference to system utility. Where host YARN
environment PATH variable is default to leaked into container by accident and
not containing /bin path (default configuration). In general, it seems like
node manager should block PATH variable from leaking into container. Not sure
if there is a valid use case that host PATH variable must leak into container
from docker point of view. From Hadoop point of view, if container is merely a
chroot, and container is a mirror image of host worker dir. It is good to keep
host PATH variable the same.
Maybe we want to be more specific that block PATH variable to leak into Docker
container, if it is using ENTRYPOINT only?
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