Bug 1707427 - Document that kubectl drain and oc adm drain do not behave as expected
Summary: Document that kubectl drain and oc adm drain do not behave as expected
Alias: None
Product: Container Native Virtualization (CNV)
Classification: Red Hat
Component: Documentation
Version: 2.0
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
: 2.0
Assignee: Pan Ousley
QA Contact: Irina Gulina
Depends On:
TreeView+ depends on / blocked
Reported: 2019-05-07 13:55 UTC by Fabian Deutsch
Modified: 2020-07-27 20:36 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2019-09-24 14:53:16 UTC
Target Upstream Version:

Attachments (Terms of Use)

Description Fabian Deutsch 2019-05-07 13:55:05 UTC
We need a documentation item which describes how CNV behaves with oc adm drain (kubectl drain).

The problem is as follows:
Today CNV (kubevirt) can not reliably identify node drains if they are triggered through a call of "oc adm drain" (or "kubectl drain").
If these commands are called on a node of a cluster with CNV deployed, then those nodes might not go to maintenance if there are VMs running on top of that node.

The current solution is to use the Node Maintenance Operator for putting nodes into maintenance.

Comment 2 Pan Ousley 2019-06-09 19:23:32 UTC
Fabian, could you please provide the original BZ URL for this issue? Thanks!

Comment 3 Fabian Deutsch 2019-06-11 12:46:08 UTC
There was no original bug.

ROman/rmohrRoan can provide the relevant details for this item.

Comment 15 Pan Ousley 2019-09-24 14:53:16 UTC
The content associated with this bug was published in the CNV 2.0 Release Notes: https://docs.openshift.com/container-platform/4.1/cnv/cnv_release_notes/cnv-release-notes.html

Comment 17 Israel Pinto 2019-10-23 14:40:09 UTC
I verify with Dev, the issue should also be in 2.1 release notes.

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