k8s: enable SPDY pings on in/outbound connections #4377
Merged
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This helps with ELB and similar L5 load balancers that don't respect
TCP-level keep-alives. ELB for example kills connections after 60s of no
application traffic.
With this PR, you can leave a
kubectl exec
session open indefinitelywithout any activity.
There's an unfortunate number of dependencies that had to be bumped to bring kubernetes/kubernetes#94170 in. I couldn't figure out a smaller subset of upgrades.
I suggest you review only the 2nd commit in this PR, the 1st one is all dependencies.
Fixes #3765