Ensure 127.0.0.1 for the --bind-address parameter #1723
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If
--bind-addressof kube-scheduler and kube-controller-manager is not set it defaults to 0.0.0.0 (all interfaces) [1, 2].The respective checks (1.3.7 and 1.4.2) should not accept the default bind-address value and should fail if
--bind-addressis not set.[1] https://kubernetes.io/docs/reference/command-line-tools-reference/kube-scheduler/
[2] https://kubernetes.io/docs/reference/command-line-tools-reference/kube-controller-manager/