pkg/util: drop pointer wrapper functions.

The new k8s.io/utils/ptr package provides generic wrapper functions,
which can be used instead of type-specific pointer wrapper functions.
This replaces the latter with the former, and migrates other uses of
the deprecated pointer package to ptr in affacted files.

See kubernetes/utils#283 for details.

Signed-off-by: Lan Liang <gcslyp@gmail.com>

pkg/util/iptables/testing/parse_test.go

@@ -28,7 +28,7 @@ import (
 	"github.com/lithammer/dedent"
 
 	"k8s.io/kubernetes/pkg/util/iptables"
-	utilpointer "k8s.io/utils/pointer"
+	ptr "k8s.io/utils/ptr"
 )
 
 func TestParseRule(t *testing.T) {
@@ -139,8 +139,8 @@ func TestParseRule(t *testing.T) {
 				Comment:         &IPTablesValue{Value: "ns1/svc1:p80"},
 				AffinityName:    &IPTablesValue{Value: "KUBE-SEP-SXIVWICOYRO3J4NJ"},
 				AffinitySeconds: &IPTablesValue{Value: "10800"},
-				AffinityCheck:   utilpointer.Bool(true),
-				AffinityReap:    utilpointer.Bool(true),
+				AffinityCheck:   ptr.To(true),
+				AffinityReap:    ptr.To(true),
 				Jump:            &IPTablesValue{Value: "KUBE-SEP-SXIVWICOYRO3J4NJ"},
 			},
 		},
@@ -200,7 +200,7 @@ func TestParseRule(t *testing.T) {
 			parsed: &Rule{
 				Raw:           `-A TEST -m recent ! --rcheck -j KUBE-SEP-SXIVWICOYRO3J4NJ`,
 				Chain:         iptables.Chain("TEST"),
-				AffinityCheck: utilpointer.Bool(false),
+				AffinityCheck: ptr.To(false),
 				Jump:          &IPTablesValue{Value: "KUBE-SEP-SXIVWICOYRO3J4NJ"},
 			},
 		},

pkg/util/tolerations/tolerations_test.go

@@ -28,7 +28,7 @@ import (
 	"k8s.io/apimachinery/pkg/util/validation/field"
 	api "k8s.io/kubernetes/pkg/apis/core"
 	"k8s.io/kubernetes/pkg/apis/core/validation"
-	utilpointer "k8s.io/utils/pointer"
+	ptr "k8s.io/utils/ptr"
 )
 
 var (
@@ -99,20 +99,20 @@ var (
 			Key:               "foo",
 			Operator:          api.TolerationOpExists,
 			Effect:            api.TaintEffectNoExecute,
-			TolerationSeconds: utilpointer.Int64Ptr(10),
+			TolerationSeconds: ptr.To[int64](10),
 		},
 		"foo-noexec-0": {
 			Key:               "foo",
 			Operator:          api.TolerationOpExists,
 			Effect:            api.TaintEffectNoExecute,
-			TolerationSeconds: utilpointer.Int64Ptr(0),
+			TolerationSeconds: ptr.To[int64](0),
 		},
 		"foo-bar-noexec-10": {
 			Key:               "foo",
 			Operator:          api.TolerationOpEqual,
 			Value:             "bar",
 			Effect:            api.TaintEffectNoExecute,
-			TolerationSeconds: utilpointer.Int64Ptr(10),
+			TolerationSeconds: ptr.To[int64](10),
 		},
 	}
 )
@@ -338,7 +338,7 @@ func TestFuzzed(t *testing.T) {
 			gen.Value = strings.Repeat("b", r.Intn(6)+1)
 		}
 		if gen.Effect == api.TaintEffectNoExecute && r.Float32() < tolerationSecondsProbability {
-			gen.TolerationSeconds = utilpointer.Int64Ptr(r.Int63n(10))
+			gen.TolerationSeconds = ptr.To[int64](r.Int63n(10))
 		}
 		// Ensure only valid tolerations are generated.
 		require.NoError(t, validation.ValidateTolerations([]api.Toleration{gen}, field.NewPath("")).ToAggregate(), "%#v", gen)