refactor(*): replace experimental maps and slices with stdlib

api/common/v1alpha1/ref.go

@@ -7,7 +7,7 @@ import (
 	"sort"
 	"strings"
 
-	"golang.org/x/exp/maps"
+	util_maps "github.com/kumahq/kuma/pkg/util/maps"
 )
 
 type TargetRefKind string
@@ -67,7 +67,7 @@ func (k TargetRefKind) IsOldKind() bool {
 }
 
 func AllTargetRefKinds() []TargetRefKind {
-	keys := maps.Keys(order)
+	keys := util_maps.AllKeys(order)
 	sort.Sort(TargetRefKindSlice(keys))
 	return keys
 }
@@ -152,15 +152,13 @@ type BackendRefHash string
 
 // Hash returns a hash of the BackendRef
 func (in BackendRef) Hash() BackendRefHash {
-	keys := maps.Keys(in.Tags)
-	sort.Strings(keys)
+	keys := util_maps.SortedKeys(in.Tags)
 	orderedTags := make([]string, 0, len(keys))
 	for _, k := range keys {
 		orderedTags = append(orderedTags, fmt.Sprintf("%s=%s", k, in.Tags[k]))
 	}
 
-	keys = maps.Keys(in.Labels)
-	sort.Strings(keys)
+	keys = util_maps.SortedKeys(in.Labels)
 	orderedLabels := make([]string, 0, len(in.Labels))
 	for _, k := range keys {
 		orderedLabels = append(orderedLabels, fmt.Sprintf("%s=%s", k, in.Labels[k]))

go.mod

@@ -65,8 +65,8 @@ require (
 	go.opentelemetry.io/proto/otlp v1.3.1
 	go.uber.org/multierr v1.11.0
 	go.uber.org/zap v1.27.0
-	golang.org/x/exp v0.0.0-20240904232852-e7e105dedf7e
 	golang.org/x/net v0.31.0
+	golang.org/x/sync v0.9.0
 	golang.org/x/sys v0.27.0
 	golang.org/x/text v0.20.0
 	gonum.org/v1/gonum v0.15.1
@@ -91,8 +91,6 @@ require (
 	sigs.k8s.io/yaml v1.4.0
 )
 
-require golang.org/x/sync v0.9.0
-
 require (
 	cel.dev/expr v0.16.1 // indirect
 	dario.cat/mergo v1.0.1 // indirect
@@ -216,6 +214,7 @@ require (
 	go.opentelemetry.io/otel/metric v1.32.0 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	golang.org/x/crypto v0.29.0 // indirect
+	golang.org/x/exp v0.0.0-20240904232852-e7e105dedf7e // indirect
 	golang.org/x/mod v0.21.0 // indirect
 	golang.org/x/oauth2 v0.23.0 // indirect
 	golang.org/x/term v0.26.0 // indirect

pkg/config/loader_test.go

@@ -6,13 +6,13 @@ import (
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
-	"golang.org/x/exp/maps"
 
 	"github.com/kumahq/kuma/pkg/config"
 	kuma_cp "github.com/kumahq/kuma/pkg/config/app/kuma-cp"
 	config_core "github.com/kumahq/kuma/pkg/config/core"
 	"github.com/kumahq/kuma/pkg/config/core/resources/store"
 	"github.com/kumahq/kuma/pkg/config/plugins/resources/postgres"
+	util_maps "github.com/kumahq/kuma/pkg/util/maps"
 	"github.com/kumahq/kuma/test/testenvconfig"
 )
 
@@ -77,7 +77,7 @@ var _ = Describe("Config loader", func() {
 					testEnvs[key] = struct{}{}
 				}
 
-				Expect(maps.Keys(testEnvs)).To(ConsistOf(maps.Keys(configEnvs)), "config values are not overridden in the test. Add overrides for them with a value that is different than default.")
+				Expect(util_maps.AllKeys(testEnvs)).To(ConsistOf(util_maps.AllKeys(configEnvs)), "config values are not overridden in the test. Add overrides for them with a value that is different than default.")
 			}
 
 			Expect(cfg.BootstrapServer.Params.AdminPort).To(Equal(uint32(1234)))

pkg/defaults/mesh/mesh.go

@@ -3,11 +3,11 @@ package mesh
 import (
 	"context"
 	"fmt"
+	"slices"
 	"strings"
 	"sync"
 
 	"github.com/pkg/errors"
-	"golang.org/x/exp/slices"
 
 	"github.com/kumahq/kuma/pkg/core"
 	"github.com/kumahq/kuma/pkg/core/resources/manager"

pkg/dns/vips/tag_first_virtual_outbound_view.go

@@ -1,11 +1,11 @@
 package vips
 
 import (
+	"maps"
 	"reflect"
 	"strings"
 
 	"github.com/asaskevich/govalidator"
-	"golang.org/x/exp/maps"
 
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"
 	"github.com/kumahq/kuma/pkg/util/pointer"

pkg/kds/util/meta.go

@@ -1,11 +1,10 @@
 package util
 
 import (
+	"maps"
 	"strings"
 	"time"
 
-	"golang.org/x/exp/maps"
-
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"
 	config_store "github.com/kumahq/kuma/pkg/config/core/resources/store"
 	"github.com/kumahq/kuma/pkg/core/resources/model"

pkg/kds/v2/reconcile/reconciler.go

@@ -2,19 +2,20 @@ package reconcile
 
 import (
 	"context"
+	"maps"
 	"sync"
 
 	envoy_core "github.com/envoyproxy/go-control-plane/envoy/config/core/v3"
 	envoy_cache "github.com/envoyproxy/go-control-plane/pkg/cache/v3"
 	"github.com/go-logr/logr"
 	"github.com/pkg/errors"
-	"golang.org/x/exp/maps"
 
 	config_core "github.com/kumahq/kuma/pkg/config/core"
 	core_model "github.com/kumahq/kuma/pkg/core/resources/model"
 	cache_v2 "github.com/kumahq/kuma/pkg/kds/v2/cache"
 	util_kds_v2 "github.com/kumahq/kuma/pkg/kds/v2/util"
 	"github.com/kumahq/kuma/pkg/multitenant"
+	util_maps "github.com/kumahq/kuma/pkg/util/maps"
 	"github.com/kumahq/kuma/pkg/util/xds"
 )
 
@@ -73,7 +74,7 @@ func (r *reconciler) Reconcile(ctx context.Context, node *envoy_core.Node, chang
 
 			oldRes := old.GetResources(typ)
 			if len(oldRes) > 0 {
-				builder = builder.With(resType, maps.Values(oldRes))
+				builder = builder.With(resType, util_maps.AllValues(oldRes))
 			}
 		}
 	}

pkg/kds/v2/server/event_based_watchdog.go

@@ -3,12 +3,12 @@ package server
 import (
 	"context"
 	"errors"
+	"maps"
 	"strings"
 	"time"
 
 	envoy_core "github.com/envoyproxy/go-control-plane/envoy/config/core/v3"
 	"github.com/go-logr/logr"
-	"golang.org/x/exp/maps"
 
 	"github.com/kumahq/kuma/pkg/core"
 	"github.com/kumahq/kuma/pkg/core/resources/model"

pkg/plugins/policies/core/xds/meshroute/gateway/gateway.go

@@ -4,8 +4,6 @@ import (
 	"context"
 	"slices"
 
-	"golang.org/x/exp/maps"
-
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"
 	"github.com/kumahq/kuma/pkg/core/permissions"
 	core_mesh "github.com/kumahq/kuma/pkg/core/resources/apis/mesh"
@@ -14,6 +12,7 @@ import (
 	"github.com/kumahq/kuma/pkg/plugins/policies/core/rules"
 	plugin_gateway "github.com/kumahq/kuma/pkg/plugins/runtime/gateway"
 	"github.com/kumahq/kuma/pkg/plugins/runtime/gateway/match"
+	util_maps "github.com/kumahq/kuma/pkg/util/maps"
 	xds_context "github.com/kumahq/kuma/pkg/xds/context"
 	envoy_names "github.com/kumahq/kuma/pkg/xds/envoy/names"
 	xds_topology "github.com/kumahq/kuma/pkg/xds/topology"
@@ -159,7 +158,7 @@ func SortByHostname(listenersByHostname map[string]plugin_gateway.GatewayListene
 	}
 
 	var listenerHostnames []plugin_gateway.GatewayListenerHostname
-	for _, hostname := range match.SortHostnamesByExactnessDec(maps.Keys(listenersByHostname)) {
+	for _, hostname := range match.SortHostnamesByExactnessDec(util_maps.AllKeys(listenersByHostname)) {
 		listenerHostnames = append(listenerHostnames, listenersByHostname[hostname])
 	}
 

pkg/plugins/policies/meshhttproute/plugin/v1alpha1/gateway_routes.go

@@ -4,7 +4,6 @@ import (
 	"slices"
 	"strings"
 
-	"golang.org/x/exp/maps"
 	"k8s.io/apimachinery/pkg/util/intstr"
 
 	common_api "github.com/kumahq/kuma/api/common/v1alpha1"
@@ -19,6 +18,7 @@ import (
 	"github.com/kumahq/kuma/pkg/plugins/runtime/gateway/match"
 	"github.com/kumahq/kuma/pkg/plugins/runtime/gateway/metadata"
 	"github.com/kumahq/kuma/pkg/plugins/runtime/gateway/route"
+	util_maps "github.com/kumahq/kuma/pkg/util/maps"
 	"github.com/kumahq/kuma/pkg/util/pointer"
 	xds_context "github.com/kumahq/kuma/pkg/xds/context"
 	"github.com/kumahq/kuma/pkg/xds/envoy/tags"
@@ -52,7 +52,7 @@ func sortRulesToHosts(
 	// under the same route config
 	var observedHostnames []string
 
-	for _, hostname := range match.SortHostnamesByExactnessDec(maps.Keys(sublistenersByHostname)) {
+	for _, hostname := range match.SortHostnamesByExactnessDec(util_maps.AllKeys(sublistenersByHostname)) {
 		hostnameTag := sublistenersByHostname[hostname]
 		inboundListener := rules.NewInboundListenerHostname(
 			address,

pkg/plugins/policies/meshhttproute/plugin/v1alpha1/listeners.go

@@ -2,8 +2,7 @@ package v1alpha1
 
 import (
 	"reflect"
-
-	"golang.org/x/exp/slices"
+	"slices"
 
 	common_api "github.com/kumahq/kuma/api/common/v1alpha1"
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"

pkg/plugins/policies/meshloadbalancingstrategy/plugin/v1alpha1/locality_aware.go

@@ -2,19 +2,18 @@ package v1alpha1
 
 import (
 	"fmt"
-	"sort"
 	"strings"
 
 	envoy_cluster "github.com/envoyproxy/go-control-plane/envoy/config/cluster/v3"
 	envoy_endpoint "github.com/envoyproxy/go-control-plane/envoy/config/endpoint/v3"
-	"golang.org/x/exp/maps"
 	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/types/known/wrapperspb"
 
 	common_api "github.com/kumahq/kuma/api/common/v1alpha1"
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"
 	core_xds "github.com/kumahq/kuma/pkg/core/xds"
 	api "github.com/kumahq/kuma/pkg/plugins/policies/meshloadbalancingstrategy/api/v1alpha1"
+	util_maps "github.com/kumahq/kuma/pkg/util/maps"
 	"github.com/kumahq/kuma/pkg/xds/cache/sha256"
 	envoy_endpoints "github.com/kumahq/kuma/pkg/xds/envoy/endpoints"
 	envoy_metadata "github.com/kumahq/kuma/pkg/xds/envoy/metadata/v3"
@@ -200,11 +199,11 @@ func egressLocality(crossZoneGroups []CrossZoneLbGroup) *core_xds.Locality {
 	for _, group := range crossZoneGroups {
 		switch group.Type {
 		case api.Only:
-			builder.WriteString(fmt.Sprintf("%d:%s", group.Priority, strings.Join(sortedZones(group.Zones), ",")))
+			builder.WriteString(fmt.Sprintf("%d:%s", group.Priority, strings.Join(util_maps.SortedKeys(group.Zones), ",")))
 		case api.Any:
 			builder.WriteString(fmt.Sprintf("%d:%s", group.Priority, group.Type))
 		case api.AnyExcept:
-			builder.WriteString(fmt.Sprintf("%d:%s:%s", group.Priority, group.Type, strings.Join(sortedZones(group.Zones), ",")))
+			builder.WriteString(fmt.Sprintf("%d:%s:%s", group.Priority, group.Type, strings.Join(util_maps.SortedKeys(group.Zones), ",")))
 		default:
 			continue
 		}
@@ -216,9 +215,3 @@ func egressLocality(crossZoneGroups []CrossZoneLbGroup) *core_xds.Locality {
 		Priority: 1,
 	}
 }
-
-func sortedZones(zones map[string]bool) []string {
-	keys := maps.Keys(zones)
-	sort.Strings(keys)
-	return keys
-}

pkg/plugins/policies/meshloadbalancingstrategy/plugin/v1alpha1/plugin.go

@@ -8,7 +8,6 @@ import (
 	envoy_hcm "github.com/envoyproxy/go-control-plane/envoy/extensions/filters/network/http_connection_manager/v3"
 	envoy_resource "github.com/envoyproxy/go-control-plane/pkg/resource/v3"
 	"github.com/pkg/errors"
-	"golang.org/x/exp/maps"
 
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"
 	core_plugins "github.com/kumahq/kuma/pkg/core/plugins"
@@ -24,6 +23,7 @@ import (
 	"github.com/kumahq/kuma/pkg/plugins/policies/meshloadbalancingstrategy/plugin/xds"
 	gateway_plugin "github.com/kumahq/kuma/pkg/plugins/runtime/gateway"
 	"github.com/kumahq/kuma/pkg/plugins/runtime/gateway/metadata"
+	util_maps "github.com/kumahq/kuma/pkg/util/maps"
 	"github.com/kumahq/kuma/pkg/util/pointer"
 	xds_context "github.com/kumahq/kuma/pkg/xds/context"
 	v3 "github.com/kumahq/kuma/pkg/xds/envoy/listeners/v3"
@@ -408,7 +408,7 @@ func (p plugin) configureEgress(rs *core_xds.ResourceSet, proxy *core_xds.Proxy)
 // Zone egress is a single point for multiple clients. At this moment we don't support different
 // configurations based on the client. That's why we are computing rules for MeshSubset
 func (p plugin) computeFrom(fr core_rules.FromRules) *core_rules.Rule {
-	rules := maps.Values(fr.Rules)
+	rules := util_maps.AllValues(fr.Rules)
 	if len(rules) == 0 {
 		return nil
 	}

pkg/plugins/policies/meshtrafficpermission/graph/backends/reachable_backend_refs_graph.go

@@ -1,7 +1,7 @@
 package backends
 
 import (
-	"golang.org/x/exp/maps"
+	"maps"
 
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"
 	"github.com/kumahq/kuma/pkg/core"

pkg/plugins/policies/meshtrafficpermission/graph/services/reachable_services_graph.go

@@ -1,7 +1,7 @@
 package services
 
 import (
-	"golang.org/x/exp/maps"
+	"maps"
 
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"
 	"github.com/kumahq/kuma/pkg/core"

pkg/plugins/resources/postgres/pgx_store.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"maps"
 	"math/rand"
 	"strconv"
 	"strings"
@@ -15,7 +16,6 @@ import (
 	_ "github.com/jackc/pgx/v5/stdlib"
 	"github.com/pkg/errors"
 	"github.com/prometheus/client_golang/prometheus"
-	"golang.org/x/exp/maps"
 
 	config "github.com/kumahq/kuma/pkg/config/plugins/resources/postgres"
 	core_model "github.com/kumahq/kuma/pkg/core/resources/model"

pkg/plugins/runtime/gateway/generator.go

@@ -8,7 +8,6 @@ import (
 
 	envoy_service_runtime_v3 "github.com/envoyproxy/go-control-plane/envoy/service/runtime/v3"
 	"github.com/pkg/errors"
-	"golang.org/x/exp/maps"
 
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"
 	"github.com/kumahq/kuma/pkg/core/permissions"
@@ -21,6 +20,7 @@ import (
 	"github.com/kumahq/kuma/pkg/plugins/runtime/gateway/merge"
 	"github.com/kumahq/kuma/pkg/plugins/runtime/gateway/metadata"
 	"github.com/kumahq/kuma/pkg/plugins/runtime/gateway/route"
+	util_maps "github.com/kumahq/kuma/pkg/util/maps"
 	util_proto "github.com/kumahq/kuma/pkg/util/proto"
 	xds_context "github.com/kumahq/kuma/pkg/xds/context"
 	envoy_listeners "github.com/kumahq/kuma/pkg/xds/envoy/listeners"
@@ -430,7 +430,7 @@ func MakeGatewayListener(
 	}
 
 	var listenerHostnames []GatewayListenerHostname
-	for _, hostname := range match.SortHostnamesByExactnessDec(maps.Keys(hostsByName)) {
+	for _, hostname := range match.SortHostnamesByExactnessDec(util_maps.AllKeys(hostsByName)) {
 		hostAcc := hostsByName[hostname]
 		hosts := RedistributeWildcardRoutes(hostAcc.hosts)
 

pkg/plugins/runtime/gateway/route/configurers.go

@@ -5,11 +5,10 @@ import (
 	envoy_config_route "github.com/envoyproxy/go-control-plane/envoy/config/route/v3"
 	envoy_type_matcher "github.com/envoyproxy/go-control-plane/envoy/type/matcher/v3"
 	"github.com/pkg/errors"
-	"golang.org/x/exp/maps"
-	"golang.org/x/exp/slices"
 
 	mesh_proto "github.com/kumahq/kuma/api/mesh/v1alpha1"
 	core_xds "github.com/kumahq/kuma/pkg/core/xds"
+	util_maps "github.com/kumahq/kuma/pkg/util/maps"
 	util_proto "github.com/kumahq/kuma/pkg/util/proto"
 	xds_context "github.com/kumahq/kuma/pkg/xds/context"
 	envoy_listeners "github.com/kumahq/kuma/pkg/xds/envoy/listeners/v3"
@@ -172,8 +171,7 @@ func RouteActionForward(xdsCtx xds_context.Context, endpoints core_xds.EndpointM
 
 		var weights []*envoy_config_route.WeightedCluster_ClusterWeight
 
-		names := maps.Keys(byName)
-		slices.Sort(names)
+		names := util_maps.SortedKeys(byName)
 		for _, name := range names {
 			destination := byName[name]
 			var requestHeadersToAdd []*envoy_config_core.HeaderValueOption

pkg/plugins/runtime/k8s/controllers/cni_taint_controller.go

@@ -2,10 +2,10 @@ package controllers
 
 import (
 	"context"
+	"slices"
 
 	"github.com/go-logr/logr"
 	"github.com/pkg/errors"
-	"golang.org/x/exp/slices"
 	kube_core "k8s.io/api/core/v1"
 	kube_apierrs "k8s.io/apimachinery/pkg/api/errors"
 	kube_types "k8s.io/apimachinery/pkg/types"