Handle pod deletion when PrevResult has VLAN 0 #2323
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
What type of PR is this?
bug
Which issue does this PR fix:
#2321
What does this PR do / Why do we need it:
This PR handles the case where a pod being deleted has a PrevResult entry with a VLAN of 0. This fix is needed in the 1.11 release train so that if a customer creates a pod with v1.12.1+ and then decides they need to downgrade to 1.11, the pod can be deleted without issue.
If an issue # is not available please add repro steps and logs from IPAMD/CNI showing the issue:
N/A
Testing done on this change:
Manually created pods with v1.12.1+, then downgraded to an image with this change and verified that pods could be deleted. Also verified that integration tests pass.
Automation added to e2e:
N/A
Will this PR introduce any new dependencies?:
N/A
Will this break upgrades or downgrades. Has updating a running cluster been tested?:
No, Yes
Does this change require updates to the CNI daemonset config files to work?:
No
Does this PR introduce any user-facing change?:
Yes
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.