Fix bug that caused agents to bypass local loadbalancer #1796

Job	Run time
build / Build	6m 33s
Integration Tests (certrotation)	2m 15s
Integration Tests (etcdrestore)	2m 24s
Integration Tests (localstorage)	2m 11s
Integration Tests (startup)	7m 44s
Integration Tests (custometcdargs)	1m 14s
Integration Tests (etcdsnapshot)	8m 38s
Integration Tests (kubeflags)	7m 28s
Integration Tests (longhorn)	3m 28s
Integration Tests (secretsencryption)	2m 48s
Integration Tests (flannelnone)	1m 48s
	46m 31s

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