Merge pull request kubernetes#35681 from vincentheet/issue-35677

Automatic merge from submit-queue

Change stickyMaxAge from seconds to minutes, fixes issue kubernetes#35677

**What this PR does / why we need it**: Increases the service sessionAfinity time from 180 seconds to 180 minutes for proxy mode iptables which was a bug introduced in a refactor.

**Which issue this PR fixes**: fixes kubernetes#35677

**Special notes for your reviewer**: 

**Release note**:

``` release-note
Fixed wrong service sessionAffinity stickiness time from 180 sec to 180 minutes in proxy mode iptables.
```

Since there is no test for the sessionAffinity feature at the moment I wanted to create one but I don't know how.

pkg/proxy/iptables/proxier.go

@@ -138,7 +138,7 @@ type serviceInfo struct {
 	nodePort                 int
 	loadBalancerStatus       api.LoadBalancerStatus
 	sessionAffinityType      api.ServiceAffinity
-	stickyMaxAgeSeconds      int
+	stickyMaxAgeMinutes      int
 	externalIPs              []string
 	loadBalancerSourceRanges []string
 	onlyNodeLocalEndpoints   bool
@@ -155,7 +155,7 @@ type endpointsInfo struct {
 func newServiceInfo(service proxy.ServicePortName) *serviceInfo {
 	return &serviceInfo{
 		sessionAffinityType: api.ServiceAffinityNone, // default
-		stickyMaxAgeSeconds: 180,                     // TODO: paramaterize this in the API.
+		stickyMaxAgeMinutes: 180,                     // TODO: paramaterize this in the API.
 	}
 }
 
@@ -1165,7 +1165,7 @@ func (proxier *Proxier) syncProxyRules() {
 					"-A", string(svcChain),
 					"-m", "comment", "--comment", svcName.String(),
 					"-m", "recent", "--name", string(endpointChain),
-					"--rcheck", "--seconds", fmt.Sprintf("%d", svcInfo.stickyMaxAgeSeconds), "--reap",
+					"--rcheck", "--seconds", fmt.Sprintf("%d", svcInfo.stickyMaxAgeMinutes*60), "--reap",
 					"-j", string(endpointChain))
 			}
 		}

pkg/proxy/iptables/proxier_test.go

@@ -260,7 +260,7 @@ func TestExecConntrackTool(t *testing.T) {
 func newFakeServiceInfo(service proxy.ServicePortName, ip net.IP, protocol api.Protocol, onlyNodeLocalEndpoints bool) *serviceInfo {
 	return &serviceInfo{
 		sessionAffinityType:    api.ServiceAffinityNone, // default
-		stickyMaxAgeSeconds:    180,                     // TODO: paramaterize this in the API.
+		stickyMaxAgeMinutes:    180,                     // TODO: paramaterize this in the API.
 		clusterIP:              ip,
 		protocol:               protocol,
 		onlyNodeLocalEndpoints: onlyNodeLocalEndpoints,