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portmap: delete UDP conntrack entries on teardown #123
As observed in kubernetes/kubernetes#59033, a quick teardown + spinup of portmappings can cause UDP "flows" to be lost, thanks to stale conntrack entries.
From the original issue:
I have found that this bug doesn't seem to only apply to changing pod IPs. It can also apply if there is incoming traffic that is being dropped because there is no pod, and then a pod is added that should start receiving the traffic.
Complete details and steps to reproduce: projectcalico/felix#1880
I think I am hitting a similar issue.
I deploy a pod with
Is this the same issue ? If so, is there a workaround till this issue is fixed ?
I am using the following CNI plugins
It seems like this PR aimed to fix the issue: kubernetes/kubernetes#59286
There is a workaround but this is not ideal.
You need to set