feat: lower pod gc threshold #176
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set the
terminaged-pod-gc-thresholdoption of kube-controller-manager to 1 to trigger automatical garbage collection of terminated pods.note that the smallest valid value for this option is
1, so in some cases a terminated pod will still be left not cleaned, the complete garbage collection of terminated pod is discussed in the Kubernetes repo but not merged: kubernetes/enhancements#2890, so maybe in the future we should add a garbage collection controller that cleans up all terminated pods if necessary.