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proxy: Add tests for kube-proxy config defaulting

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Signed-off-by: Christopher M. Luciano <cmluciano@us.ibm.com>
This commit is contained in:
Christopher M. Luciano 2020-10-02 10:34:57 -04:00
parent 112dbd5586
commit 601c5150ca
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2 changed files with 130 additions and 0 deletions
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13
pkg/proxy/apis/config/v1alpha1/BUILD
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@ -3,6 +3,7 @@ package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_library(
@ -43,3 +44,15 @@ filegroup(
srcs = [":package-srcs"],
tags = ["automanaged"],
)
go_test(
name = "go_default_test",
srcs = ["defaults_test.go"],
embed = [":go_default_library"],
deps = [
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/component-base/config/v1alpha1:go_default_library",
"//staging/src/k8s.io/kube-proxy/config/v1alpha1:go_default_library",
"//vendor/github.com/google/go-cmp/cmp:go_default_library",
],
)

117
pkg/proxy/apis/config/v1alpha1/defaults_test.go Normal file
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@ -0,0 +1,117 @@
/*
Copyright 2020 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 v1alpha1
import (
"testing"
"time"
"github.com/google/go-cmp/cmp"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
componentbaseconfig "k8s.io/component-base/config/v1alpha1"
kubeproxyconfigv1alpha1 "k8s.io/kube-proxy/config/v1alpha1"
)
func TestDefaultsKubeProxyConfiguration(t *testing.T) {
masqBit := int32(14)
oomScore := int32(-999)
ctMaxPerCore := int32(32768)
ctMin := int32(131072)
testCases := []struct {
name string
original *kubeproxyconfigv1alpha1.KubeProxyConfiguration
expected *kubeproxyconfigv1alpha1.KubeProxyConfiguration
}{
{
name: "empty-config",
original: &kubeproxyconfigv1alpha1.KubeProxyConfiguration{},
expected: &kubeproxyconfigv1alpha1.KubeProxyConfiguration{
FeatureGates: map[string]bool{},
BindAddress: "0.0.0.0",
HealthzBindAddress: "0.0.0.0:10256",
MetricsBindAddress: "127.0.0.1:10249",
ClientConnection: componentbaseconfig.ClientConnectionConfiguration{
ContentType: "application/vnd.kubernetes.protobuf",
QPS: 5,
Burst: 10,
},
IPTables: kubeproxyconfigv1alpha1.KubeProxyIPTablesConfiguration{
MasqueradeBit: &masqBit,
MasqueradeAll: false,
SyncPeriod: metav1.Duration{Duration: 30 * time.Second},
MinSyncPeriod: metav1.Duration{Duration: 1 * time.Second},
},
IPVS: kubeproxyconfigv1alpha1.KubeProxyIPVSConfiguration{
SyncPeriod: metav1.Duration{Duration: 30 * time.Second},
},
OOMScoreAdj: &oomScore,
UDPIdleTimeout: metav1.Duration{Duration: 250 * time.Millisecond},
Conntrack: kubeproxyconfigv1alpha1.KubeProxyConntrackConfiguration{
MaxPerCore: &ctMaxPerCore,
Min: &ctMin,
TCPEstablishedTimeout: &metav1.Duration{Duration: 24 * time.Hour},
TCPCloseWaitTimeout: &metav1.Duration{Duration: 1 * time.Hour},
},
ConfigSyncPeriod: metav1.Duration{Duration: 15 * time.Minute},
},
},
{
name: "metrics and healthz address with no port",
original: &kubeproxyconfigv1alpha1.KubeProxyConfiguration{
MetricsBindAddress: "127.0.0.1",
HealthzBindAddress: "127.0.0.1",
},
expected: &kubeproxyconfigv1alpha1.KubeProxyConfiguration{
FeatureGates: map[string]bool{},
BindAddress: "0.0.0.0",
HealthzBindAddress: "127.0.0.1:10256",
MetricsBindAddress: "127.0.0.1:10249",
ClientConnection: componentbaseconfig.ClientConnectionConfiguration{
ContentType: "application/vnd.kubernetes.protobuf",
QPS: 5,
Burst: 10,
},
IPTables: kubeproxyconfigv1alpha1.KubeProxyIPTablesConfiguration{
MasqueradeBit: &masqBit,
MasqueradeAll: false,
SyncPeriod: metav1.Duration{Duration: 30 * time.Second},
MinSyncPeriod: metav1.Duration{Duration: 1 * time.Second},
},
IPVS: kubeproxyconfigv1alpha1.KubeProxyIPVSConfiguration{
SyncPeriod: metav1.Duration{Duration: 30 * time.Second},
},
OOMScoreAdj: &oomScore,
UDPIdleTimeout: metav1.Duration{Duration: 250 * time.Millisecond},
Conntrack: kubeproxyconfigv1alpha1.KubeProxyConntrackConfiguration{
MaxPerCore: &ctMaxPerCore,
Min: &ctMin,
TCPEstablishedTimeout: &metav1.Duration{Duration: 24 * time.Hour},
TCPCloseWaitTimeout: &metav1.Duration{Duration: 1 * time.Hour},
},
ConfigSyncPeriod: metav1.Duration{Duration: 15 * time.Minute},
},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
SetDefaults_KubeProxyConfiguration(tc.original)
if diff := cmp.Diff(tc.expected, tc.original); diff != "" {
t.Errorf("Got unexpected defaults (-want, +got):\n%s", diff)
}
})
}
}