Your Pods Are Not Draining: I Checked

This story was originally published on HackerNoon at: https://hackernoon.com/your-pods-are-not-draining-i-checked.
I measured Kubernetes graceful shutdown across 25 trials: SIGTERM handling swings TCP fate by three orders of magnitude, and UDP gets no drain at all.
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I built drainwatch, a small Go tool, and ran 25 measured trials of Kubernetes pod termination.