Extend resyncPeriods in controllers in production.

hack/jenkins/e2e.sh

@@ -353,6 +353,8 @@ case ${JOB_NAME} in
     NUM_MINIONS="100"
     # Reduce logs verbosity
     TEST_CLUSTER_LOG_LEVEL="--v=1"
+    # Increase resync period to simulate production
+    TEST_CLUSTER_RESYNC_PERIOD="--min-resync-period=12h"
     ;;
 
   # Runs tests on GCE soak cluster.

hack/verify-flags/known-flags.txt

@@ -185,6 +185,7 @@ minion-max-log-size
 minion-path-override
 min-pr-number
 min-request-timeout
+min-resync-period
 namespace-sync-period
 network-plugin
 network-plugin-dir