kube-proxy: internal config: remove PortRange

Remove PortRange for internal configuration of kube-proxy
adhering to the v1alpha2 version specifications as detailed in
https://kep.k8s.io/784.

Signed-off-by: Daman Arora <[email protected]>

Author: aroradaman

cmd/kube-proxy/app/options.go

@@ -170,8 +170,6 @@ func (o *Options) AddFlags(fs *pflag.FlagSet) {
 	_ = fs.MarkDeprecated("healthz-port", "This flag is deprecated and will be removed in a future release. Please use --healthz-bind-address instead.")
 	fs.Int32Var(&o.metricsPort, "metrics-port", o.metricsPort, "The port to bind the metrics server. Use 0 to disable.")
 	_ = fs.MarkDeprecated("metrics-port", "This flag is deprecated and will be removed in a future release. Please use --metrics-bind-address instead.")
-	fs.Var(utilflag.PortRangeVar{Val: &o.config.PortRange}, "proxy-port-range", "This was previously used to configure the userspace proxy, but is now unused.")
-	_ = fs.MarkDeprecated("proxy-port-range", "This flag has no effect and will be removed in a future release.")
 
 	logsapi.AddFlags(&o.config.Logging, fs)
 }

cmd/kube-proxy/app/options_test.go

@@ -224,7 +224,6 @@ nodePortAddresses:
 				},
 				MetricsBindAddress: tc.metricsBindAddress,
 				Mode:               kubeproxyconfig.ProxyMode(tc.mode),
-				PortRange:          "2-7",
 				NodePortAddresses:  []string{"10.20.30.40/16", "fd00:1::0/64"},
 				DetectLocalMode:    kubeproxyconfig.LocalModeClusterCIDR,
 				DetectLocal: kubeproxyconfig.DetectLocalConfiguration{

pkg/proxy/apis/config/types.go

@@ -236,9 +236,6 @@ type KubeProxyConfiguration struct {
 	// configSyncPeriod is how often configuration from the apiserver is refreshed. Must be greater
 	// than 0.
 	ConfigSyncPeriod metav1.Duration
-
-	// portRange was previously used to configure the userspace proxy, but is now unused.
-	PortRange string
 }
 
 // ProxyMode represents modes used by the Kubernetes proxy server.

pkg/proxy/apis/config/v1alpha1/zz_generated.conversion.go

@@ -23,7 +23,6 @@ import (
 	"strconv"
 	"strings"
 
-	utilnet "k8s.io/apimachinery/pkg/util/net"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
@@ -80,10 +79,6 @@ func Validate(config *kubeproxyconfig.KubeProxyConfiguration) field.ErrorList {
 	}
 	allErrs = append(allErrs, validateHostPort(config.MetricsBindAddress, newPath.Child("MetricsBindAddress"))...)
 
-	if _, err := utilnet.ParsePortRange(config.PortRange); err != nil {
-		allErrs = append(allErrs, field.Invalid(newPath.Child("PortRange"), config.PortRange, "must be a valid port range (e.g. 300-2000)"))
-	}
-
 	allErrs = append(allErrs, validateKubeProxyNodePortAddress(config.NodePortAddresses, newPath.Child("NodePortAddresses"))...)
 	allErrs = append(allErrs, validateShowHiddenMetricsVersion(config.ShowHiddenMetricsForVersion, newPath.Child("ShowHiddenMetricsForVersion"))...)