Reduce spammy logs in route table (#8879)

felix/routerule/route_rule.go

@@ -147,7 +147,6 @@ func (r *RouteRules) getActiveRule(rule *Rule, f RulesMatchFunc) *Rule {
 
 // Set a Rule. Add to activeRules if it does not already exist based on matchForUpdate function.
 func (r *RouteRules) SetRule(rule *Rule) {
-
 	if r.netlinkFamily != rule.nlRule.Family {
 		log.WithField("rule", rule).Warnf("Rule does not match family %d, ignoring.", r.netlinkFamily)
 	}
@@ -164,7 +163,6 @@ func (r *RouteRules) SetRule(rule *Rule) {
 
 // Remove a Rule. Do nothing if Rule not exists depends based on matchForRemove function.
 func (r *RouteRules) RemoveRule(rule *Rule) {
-
 	if r.netlinkFamily != rule.nlRule.Family {
 		log.WithField("rule", rule).Warnf("Rule does not match family %d, ignoring.", r.netlinkFamily)
 	}
@@ -186,7 +184,7 @@ func (r *RouteRules) getNetlinkHandle() (HandleIface, error) {
 			log.WithField("numFailures", r.numConsistentNetlinkFailures).Panic(
 				"Repeatedly failed to connect to netlink.")
 		}
-		log.Info("Trying to connect to netlink")
+		log.Debug("Trying to connect to netlink")
 		nlHandle, err := r.newNetlinkHandle()
 		if err != nil {
 			r.numConsistentNetlinkFailures++

felix/routetable/route_table.go

@@ -891,19 +891,19 @@ func (r *RouteTable) fullResyncRoutesForLink(logCxt *log.Entry, ifaceName string
 			continue
 		}
 		logCxt := logCxt.WithField("cidr", cidr)
-		logCxt.Info("Deleting from expected targets")
+		logCxt.Debug("Deleting from expected targets")
 		delete(expectedTargets, cidr)
 
 		// If we do not have an update that supersedes this entry, then add it back in as an update so that we add
 		// the route.
 		if pendingTarget, ok := pendingDeltaTargets[cidr]; !ok {
-			logCxt.Info("No pending target update, adding back in as an update")
+			logCxt.Debug("No pending target update, adding back in as an update")
 			pendingDeltaTargets[cidr] = safeTargetPointer(target)
 		} else if pendingTarget == nil {
-			logCxt.Info("Pending target deletion, removing delete update")
+			logCxt.Debug("Pending target deletion, removing delete update")
 			delete(pendingDeltaTargets, cidr)
 		} else {
-			logCxt.Info("Pending target update, no changes to deltas required")
+			logCxt.Debug("Pending target update, no changes to deltas required")
 		}
 	}