Merge pull request #107393 from danwinship/filter-endpoints

kube-proxy endpoint filtering unit test refactoring
This commit is contained in:
Kubernetes Prow Robot 2022-02-22 08:55:15 -08:00 committed by GitHub
commit 108e8136e2
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

View File

@ -17,376 +17,264 @@ limitations under the License.
package proxy
import (
"reflect"
"fmt"
"testing"
v1 "k8s.io/api/core/v1"
kerrors "k8s.io/apimachinery/pkg/util/errors"
"k8s.io/apimachinery/pkg/util/sets"
utilfeature "k8s.io/apiserver/pkg/util/feature"
featuregatetesting "k8s.io/component-base/featuregate/testing"
"k8s.io/kubernetes/pkg/features"
)
func TestFilterEndpoints(t *testing.T) {
type endpoint struct {
ip string
zoneHints sets.String
unready bool
func checkExpectedEndpoints(expected sets.String, actual []Endpoint) error {
var errs []error
expectedCopy := sets.NewString(expected.UnsortedList()...)
for _, ep := range actual {
if !expectedCopy.Has(ep.String()) {
errs = append(errs, fmt.Errorf("unexpected endpoint %v", ep))
}
expectedCopy.Delete(ep.String())
}
if len(expectedCopy) > 0 {
errs = append(errs, fmt.Errorf("missing endpoints %v", expectedCopy.UnsortedList()))
}
return kerrors.NewAggregate(errs)
}
func TestFilterEndpoints(t *testing.T) {
testCases := []struct {
name string
hintsEnabled bool
nodeLabels map[string]string
serviceInfo ServicePort
endpoints []endpoint
expectedEndpoints []endpoint
endpoints []Endpoint
expectedEndpoints sets.String
}{{
name: "hints enabled, hints annotation == auto",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{nodeLocalExternal: false, hintsAnnotation: "auto"},
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.6:80"),
}, {
name: "hints, hints annotation == disabled, hints ignored",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{nodeLocalExternal: false, hintsAnnotation: "disabled"},
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.5:80", "10.1.2.6:80"),
}, {
name: "hints, hints annotation == aUto (wrong capitalization), hints ignored",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{nodeLocalExternal: false, hintsAnnotation: "aUto"},
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.5:80", "10.1.2.6:80"),
}, {
name: "hints, hints annotation empty, hints ignored",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{nodeLocalExternal: false},
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.5:80", "10.1.2.6:80"),
}, {
name: "node local endpoints, hints are ignored",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{nodeLocalExternal: true},
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
serviceInfo: &BaseServiceInfo{nodeLocalExternal: true, hintsAnnotation: "auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.5:80", "10.1.2.6:80"),
}, {
name: "empty node labels",
hintsEnabled: true,
nodeLabels: map[string]string{},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80"),
}, {
name: "empty zone label",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: ""},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80"),
}, {
name: "node in different zone, no endpoint filtering",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-b"},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80"),
}, {
name: "normal endpoint filtering, auto annotation",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.6:80"),
}, {
name: "unready endpoint",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: false},
},
expectedEndpoints: sets.NewString("10.1.2.3:80"),
}, {
name: "only unready endpoints in same zone (should not filter)",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: false},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: false},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.5:80", "10.1.2.6:80"),
}, {
name: "normal endpoint filtering, Auto annotation",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "Auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.6:80"),
}, {
name: "hintsAnnotation empty, no filtering applied",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{hintsAnnotation: ""},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.5:80", "10.1.2.6:80"),
}, {
name: "hintsAnnotation disabled, no filtering applied",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "disabled"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.5:80", "10.1.2.6:80"),
}, {
name: "missing hints, no filtering applied",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: nil, Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-a"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.5:80", "10.1.2.6:80"),
}, {
name: "multiple hints per endpoint, filtering includes any endpoint with zone included",
hintsEnabled: true,
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-c"},
serviceInfo: &BaseServiceInfo{hintsAnnotation: "auto"},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.1.2.3:80", ZoneHints: sets.NewString("zone-a", "zone-b", "zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.4:80", ZoneHints: sets.NewString("zone-b", "zone-c"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.5:80", ZoneHints: sets.NewString("zone-b", "zone-d"), Ready: true},
&BaseEndpointInfo{Endpoint: "10.1.2.6:80", ZoneHints: sets.NewString("zone-c"), Ready: true},
},
expectedEndpoints: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.6:80"),
}, {
name: "internalTrafficPolicy: Local, with empty endpoints",
serviceInfo: &BaseServiceInfo{nodeLocalInternal: true},
endpoints: []Endpoint{},
expectedEndpoints: nil,
}, {
name: "internalTrafficPolicy: Local, but all endpoints are remote",
serviceInfo: &BaseServiceInfo{nodeLocalInternal: true},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.0.0.0:80", Ready: true, IsLocal: false},
&BaseEndpointInfo{Endpoint: "10.0.0.1:80", Ready: true, IsLocal: false},
},
expectedEndpoints: nil,
}, {
name: "internalTrafficPolicy: Local, all endpoints are local",
serviceInfo: &BaseServiceInfo{nodeLocalInternal: true},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.0.0.0:80", Ready: true, IsLocal: true},
&BaseEndpointInfo{Endpoint: "10.0.0.1:80", Ready: true, IsLocal: true},
},
expectedEndpoints: sets.NewString("10.0.0.0:80", "10.0.0.1:80"),
}, {
name: "internalTrafficPolicy: Local, some endpoints are local",
serviceInfo: &BaseServiceInfo{nodeLocalInternal: true},
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.0.0.0:80", Ready: true, IsLocal: true},
&BaseEndpointInfo{Endpoint: "10.0.0.1:80", Ready: true, IsLocal: false},
},
expectedEndpoints: sets.NewString("10.0.0.0:80"),
}}
endpointsToStringArray := func(endpoints []Endpoint) []string {
result := make([]string, 0, len(endpoints))
for _, ep := range endpoints {
result = append(result, ep.String())
}
return result
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.TopologyAwareHints, tc.hintsEnabled)()
endpoints := []Endpoint{}
for _, ep := range tc.endpoints {
endpoints = append(endpoints, &BaseEndpointInfo{Endpoint: ep.ip, ZoneHints: ep.zoneHints, Ready: !ep.unready})
}
expectedEndpoints := []Endpoint{}
for _, ep := range tc.expectedEndpoints {
expectedEndpoints = append(expectedEndpoints, &BaseEndpointInfo{Endpoint: ep.ip, ZoneHints: ep.zoneHints, Ready: !ep.unready})
}
filteredEndpoints := FilterEndpoints(endpoints, tc.serviceInfo, tc.nodeLabels)
if len(filteredEndpoints) != len(expectedEndpoints) {
t.Errorf("expected %d filtered endpoints, got %d", len(expectedEndpoints), len(filteredEndpoints))
}
if !reflect.DeepEqual(filteredEndpoints, expectedEndpoints) {
t.Errorf("expected %v, got %v", endpointsToStringArray(expectedEndpoints), endpointsToStringArray(filteredEndpoints))
}
})
}
}
func Test_filterEndpointsWithHints(t *testing.T) {
type endpoint struct {
ip string
zoneHints sets.String
unready bool
}
testCases := []struct {
name string
nodeLabels map[string]string
hintsAnnotation string
endpoints []endpoint
expectedEndpoints []endpoint
}{{
name: "empty node labels",
nodeLabels: map[string]string{},
hintsAnnotation: "auto",
endpoints: []endpoint{{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")}},
expectedEndpoints: []endpoint{{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")}},
}, {
name: "empty zone label",
nodeLabels: map[string]string{v1.LabelTopologyZone: ""},
hintsAnnotation: "auto",
endpoints: []endpoint{{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")}},
expectedEndpoints: []endpoint{{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")}},
}, {
name: "node in different zone, no endpoint filtering",
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-b"},
hintsAnnotation: "auto",
endpoints: []endpoint{{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")}},
expectedEndpoints: []endpoint{{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")}},
}, {
name: "normal endpoint filtering, auto annotation",
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
hintsAnnotation: "auto",
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
}, {
name: "unready endpoint",
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
hintsAnnotation: "auto",
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a"), unready: true},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
},
}, {
name: "only unready endpoints in same zone (should not filter)",
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
hintsAnnotation: "auto",
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a"), unready: true},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a"), unready: true},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a"), unready: true},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a"), unready: true},
},
}, {
name: "normal endpoint filtering, Auto annotation",
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
hintsAnnotation: "Auto",
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
}, {
name: "hintsAnnotation empty, no filtering applied",
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
hintsAnnotation: "",
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
}, {
name: "hintsAnnotation disabled, no filtering applied",
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
hintsAnnotation: "disabled",
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
}, {
name: "missing hints, no filtering applied",
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-a"},
hintsAnnotation: "auto",
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5"},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b")},
{ip: "10.1.2.5"},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-a")},
},
}, {
name: "multiple hints per endpoint, filtering includes any endpoint with zone included",
nodeLabels: map[string]string{v1.LabelTopologyZone: "zone-c"},
hintsAnnotation: "auto",
endpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a", "zone-b", "zone-c")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b", "zone-c")},
{ip: "10.1.2.5", zoneHints: sets.NewString("zone-b", "zone-d")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-c")},
},
expectedEndpoints: []endpoint{
{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a", "zone-b", "zone-c")},
{ip: "10.1.2.4", zoneHints: sets.NewString("zone-b", "zone-c")},
{ip: "10.1.2.6", zoneHints: sets.NewString("zone-c")},
},
}}
endpointsToStringArray := func(endpoints []Endpoint) []string {
result := make([]string, 0, len(endpoints))
for _, ep := range endpoints {
result = append(result, ep.String())
}
return result
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
endpoints := []Endpoint{}
for _, ep := range tc.endpoints {
endpoints = append(endpoints, &BaseEndpointInfo{Endpoint: ep.ip, ZoneHints: ep.zoneHints, Ready: !ep.unready})
}
expectedEndpoints := []Endpoint{}
for _, ep := range tc.expectedEndpoints {
expectedEndpoints = append(expectedEndpoints, &BaseEndpointInfo{Endpoint: ep.ip, ZoneHints: ep.zoneHints, Ready: !ep.unready})
}
filteredEndpoints := filterEndpointsWithHints(endpoints, tc.hintsAnnotation, tc.nodeLabels)
if len(filteredEndpoints) != len(expectedEndpoints) {
t.Errorf("expected %d filtered endpoints, got %d", len(expectedEndpoints), len(filteredEndpoints))
}
if !reflect.DeepEqual(filteredEndpoints, expectedEndpoints) {
t.Errorf("expected %v, got %v", endpointsToStringArray(expectedEndpoints), endpointsToStringArray(filteredEndpoints))
}
})
}
}
func TestFilterLocalEndpoint(t *testing.T) {
testCases := []struct {
name string
endpoints []Endpoint
expected []Endpoint
}{
{
name: "with empty endpoints",
endpoints: []Endpoint{},
expected: nil,
},
{
name: "all endpoints not local",
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.0.0.0:80", IsLocal: false},
&BaseEndpointInfo{Endpoint: "10.0.0.1:80", IsLocal: false},
},
expected: nil,
},
{
name: "all endpoints are local",
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.0.0.0:80", IsLocal: true},
&BaseEndpointInfo{Endpoint: "10.0.0.1:80", IsLocal: true},
},
expected: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.0.0.0:80", IsLocal: true},
&BaseEndpointInfo{Endpoint: "10.0.0.1:80", IsLocal: true},
},
},
{
name: "some endpoints are local",
endpoints: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.0.0.0:80", IsLocal: true},
&BaseEndpointInfo{Endpoint: "10.0.0.1:80", IsLocal: false},
},
expected: []Endpoint{
&BaseEndpointInfo{Endpoint: "10.0.0.0:80", IsLocal: true},
},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
filteredEndpoint := FilterLocalEndpoint(tc.endpoints)
if !reflect.DeepEqual(filteredEndpoint, tc.expected) {
t.Errorf("expected %v, got %v", tc.expected, filteredEndpoint)
filteredEndpoints := FilterEndpoints(tc.endpoints, tc.serviceInfo, tc.nodeLabels)
err := checkExpectedEndpoints(tc.expectedEndpoints, filteredEndpoints)
if err != nil {
t.Errorf(err.Error())
}
})
}