e5ba48f7d1
Just check that the actual IP:port of the filtered endpoints is correct; using DeepEqual requires us to copy all the extra endpoint fields (eg, ZoneHints, IsLocal) from endpoints to expectedEndpoints, which just makes the test cases unnecessarily bigger.
323 lines
12 KiB
Go
323 lines
12 KiB
Go
/*
|
|
Copyright 2019 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package proxy
|
|
|
|
import (
|
|
"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 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) {
|
|
type endpoint struct {
|
|
ip string
|
|
zoneHints sets.String
|
|
unready bool
|
|
}
|
|
testCases := []struct {
|
|
name string
|
|
hintsEnabled bool
|
|
nodeLabels map[string]string
|
|
serviceInfo ServicePort
|
|
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: 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: 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: 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: 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, 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: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.5:80", "10.1.2.6:80"),
|
|
}}
|
|
|
|
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 + ":80", ZoneHints: ep.zoneHints, Ready: !ep.unready})
|
|
}
|
|
|
|
filteredEndpoints := FilterEndpoints(endpoints, tc.serviceInfo, tc.nodeLabels)
|
|
err := checkExpectedEndpoints(tc.expectedEndpoints, filteredEndpoints)
|
|
if err != nil {
|
|
t.Errorf(err.Error())
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
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 sets.String
|
|
}{{
|
|
name: "empty node labels",
|
|
nodeLabels: map[string]string{},
|
|
hintsAnnotation: "auto",
|
|
endpoints: []endpoint{{ip: "10.1.2.3", zoneHints: sets.NewString("zone-a")}},
|
|
expectedEndpoints: sets.NewString("10.1.2.3:80"),
|
|
}, {
|
|
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: sets.NewString("10.1.2.3:80"),
|
|
}, {
|
|
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: sets.NewString("10.1.2.3:80"),
|
|
}, {
|
|
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: sets.NewString("10.1.2.3:80", "10.1.2.6:80"),
|
|
}, {
|
|
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: sets.NewString("10.1.2.3:80"),
|
|
}, {
|
|
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: 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",
|
|
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: sets.NewString("10.1.2.3:80", "10.1.2.6:80"),
|
|
}, {
|
|
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: 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",
|
|
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: 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",
|
|
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: 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",
|
|
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: sets.NewString("10.1.2.3:80", "10.1.2.4:80", "10.1.2.6:80"),
|
|
}}
|
|
|
|
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 + ":80", ZoneHints: ep.zoneHints, Ready: !ep.unready})
|
|
}
|
|
|
|
filteredEndpoints := filterEndpointsWithHints(endpoints, tc.hintsAnnotation, tc.nodeLabels)
|
|
err := checkExpectedEndpoints(tc.expectedEndpoints, filteredEndpoints)
|
|
if err != nil {
|
|
t.Errorf(err.Error())
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestFilterLocalEndpoint(t *testing.T) {
|
|
testCases := []struct {
|
|
name string
|
|
endpoints []Endpoint
|
|
expected sets.String
|
|
}{
|
|
{
|
|
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: sets.NewString("10.0.0.0:80", "10.0.0.1:80"),
|
|
},
|
|
{
|
|
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: sets.NewString("10.0.0.0:80"),
|
|
},
|
|
}
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
filteredEndpoint := FilterLocalEndpoint(tc.endpoints)
|
|
err := checkExpectedEndpoints(tc.expected, filteredEndpoint)
|
|
if err != nil {
|
|
t.Errorf(err.Error())
|
|
}
|
|
})
|
|
}
|
|
}
|