[
https://issues.apache.org/jira/browse/YARN-9391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16796560#comment-16796560
]
Jim Brennan commented on YARN-9391:
-----------------------------------
[~ebadger] I assume you are referring to the PATH variable in particular, not
to all environment variables.
I think in this case the PATH variable is being included in the whitelist for
the NM (for the non-docker case that [~eyang] mentioned above). I agree that
it is unlikely that we really need the NM's PATH variable inside of a docker
container. I'm a little reluctant to have the NM just skip that whitelist
entry for docker/oci runtimes. Currently the whitelist environment variable
processing/script writing is done in ContainerLaunch/ContainerExecutor. What
is there works for the non-entry-point case (as long as the PATH is defined in
the image, which I think we are assuming here).
For the entry point case, the environment is added to the run command in
DockerLinuxContainerRuntime.launchContainer().
> 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
> Priority: Major
>
> 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?
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
