453 lines
12 KiB
Go
453 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 componentconfigs
|
|
|
|
import (
|
|
"reflect"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/lithammer/dedent"
|
|
|
|
v1 "k8s.io/api/core/v1"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
clientsetfake "k8s.io/client-go/kubernetes/fake"
|
|
componentbaseconfig "k8s.io/component-base/config/v1alpha1"
|
|
kubeproxyconfig "k8s.io/kube-proxy/config/v1alpha1"
|
|
|
|
kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
|
|
kubeadmapiv1beta2 "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/v1beta2"
|
|
"k8s.io/kubernetes/cmd/kubeadm/app/constants"
|
|
"k8s.io/kubernetes/cmd/kubeadm/app/features"
|
|
kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
|
|
)
|
|
|
|
// kubeProxyMarshalCases holds common marshal test cases for both the marshal and unmarshal tests
|
|
var kubeProxyMarshalCases = []struct {
|
|
name string
|
|
obj *kubeProxyConfig
|
|
yaml string
|
|
}{
|
|
{
|
|
name: "Empty config",
|
|
obj: &kubeProxyConfig{
|
|
config: kubeproxyconfig.KubeProxyConfiguration{},
|
|
},
|
|
yaml: dedent.Dedent(`
|
|
apiVersion: kubeproxy.config.k8s.io/v1alpha1
|
|
bindAddress: ""
|
|
bindAddressHardFail: false
|
|
clientConnection:
|
|
acceptContentTypes: ""
|
|
burst: 0
|
|
contentType: ""
|
|
kubeconfig: ""
|
|
qps: 0
|
|
clusterCIDR: ""
|
|
configSyncPeriod: 0s
|
|
conntrack:
|
|
maxPerCore: null
|
|
min: null
|
|
tcpCloseWaitTimeout: null
|
|
tcpEstablishedTimeout: null
|
|
detectLocalMode: ""
|
|
enableProfiling: false
|
|
healthzBindAddress: ""
|
|
hostnameOverride: ""
|
|
iptables:
|
|
masqueradeAll: false
|
|
masqueradeBit: null
|
|
minSyncPeriod: 0s
|
|
syncPeriod: 0s
|
|
ipvs:
|
|
excludeCIDRs: null
|
|
minSyncPeriod: 0s
|
|
scheduler: ""
|
|
strictARP: false
|
|
syncPeriod: 0s
|
|
tcpFinTimeout: 0s
|
|
tcpTimeout: 0s
|
|
udpTimeout: 0s
|
|
kind: KubeProxyConfiguration
|
|
metricsBindAddress: ""
|
|
mode: ""
|
|
nodePortAddresses: null
|
|
oomScoreAdj: null
|
|
portRange: ""
|
|
showHiddenMetricsForVersion: ""
|
|
udpIdleTimeout: 0s
|
|
winkernel:
|
|
enableDSR: false
|
|
networkName: ""
|
|
sourceVip: ""
|
|
`),
|
|
},
|
|
{
|
|
name: "Non empty config",
|
|
obj: &kubeProxyConfig{
|
|
config: kubeproxyconfig.KubeProxyConfiguration{
|
|
BindAddress: "1.2.3.4",
|
|
EnableProfiling: true,
|
|
},
|
|
},
|
|
yaml: dedent.Dedent(`
|
|
apiVersion: kubeproxy.config.k8s.io/v1alpha1
|
|
bindAddress: 1.2.3.4
|
|
bindAddressHardFail: false
|
|
clientConnection:
|
|
acceptContentTypes: ""
|
|
burst: 0
|
|
contentType: ""
|
|
kubeconfig: ""
|
|
qps: 0
|
|
clusterCIDR: ""
|
|
configSyncPeriod: 0s
|
|
conntrack:
|
|
maxPerCore: null
|
|
min: null
|
|
tcpCloseWaitTimeout: null
|
|
tcpEstablishedTimeout: null
|
|
detectLocalMode: ""
|
|
enableProfiling: true
|
|
healthzBindAddress: ""
|
|
hostnameOverride: ""
|
|
iptables:
|
|
masqueradeAll: false
|
|
masqueradeBit: null
|
|
minSyncPeriod: 0s
|
|
syncPeriod: 0s
|
|
ipvs:
|
|
excludeCIDRs: null
|
|
minSyncPeriod: 0s
|
|
scheduler: ""
|
|
strictARP: false
|
|
syncPeriod: 0s
|
|
tcpFinTimeout: 0s
|
|
tcpTimeout: 0s
|
|
udpTimeout: 0s
|
|
kind: KubeProxyConfiguration
|
|
metricsBindAddress: ""
|
|
mode: ""
|
|
nodePortAddresses: null
|
|
oomScoreAdj: null
|
|
portRange: ""
|
|
showHiddenMetricsForVersion: ""
|
|
udpIdleTimeout: 0s
|
|
winkernel:
|
|
enableDSR: false
|
|
networkName: ""
|
|
sourceVip: ""
|
|
`),
|
|
},
|
|
}
|
|
|
|
func TestKubeProxyMarshal(t *testing.T) {
|
|
for _, test := range kubeProxyMarshalCases {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
b, err := test.obj.Marshal()
|
|
if err != nil {
|
|
t.Fatalf("Marshal failed: %v", err)
|
|
}
|
|
|
|
got := strings.TrimSpace(string(b))
|
|
expected := strings.TrimSpace(test.yaml)
|
|
if expected != string(got) {
|
|
t.Fatalf("Missmatch between expected and got:\nExpected:\n%s\n---\nGot:\n%s", expected, string(got))
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestKubeProxyUnmarshal(t *testing.T) {
|
|
for _, test := range kubeProxyMarshalCases {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
gvkmap, err := kubeadmutil.SplitYAMLDocuments([]byte(test.yaml))
|
|
if err != nil {
|
|
t.Fatalf("unexpected failure of SplitYAMLDocuments: %v", err)
|
|
}
|
|
|
|
got := &kubeProxyConfig{}
|
|
if err = got.Unmarshal(gvkmap); err != nil {
|
|
t.Fatalf("unexpected failure of Unmarshal: %v", err)
|
|
}
|
|
|
|
expected := test.obj.DeepCopy().(*kubeProxyConfig)
|
|
expected.config.APIVersion = kubeProxyHandler.GroupVersion.String()
|
|
expected.config.Kind = "KubeProxyConfiguration"
|
|
|
|
if !reflect.DeepEqual(got, expected) {
|
|
t.Fatalf("Missmatch between expected and got:\nExpected:\n%v\n---\nGot:\n%v", expected, got)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestKubeProxyDefault(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
clusterCfg kubeadmapi.ClusterConfiguration
|
|
endpoint kubeadmapi.APIEndpoint
|
|
expected kubeProxyConfig
|
|
}{
|
|
{
|
|
name: "No specific defaulting works",
|
|
clusterCfg: kubeadmapi.ClusterConfiguration{},
|
|
endpoint: kubeadmapi.APIEndpoint{},
|
|
expected: kubeProxyConfig{
|
|
config: kubeproxyconfig.KubeProxyConfiguration{
|
|
FeatureGates: map[string]bool{},
|
|
BindAddress: kubeadmapiv1beta2.DefaultProxyBindAddressv6,
|
|
ClientConnection: componentbaseconfig.ClientConnectionConfiguration{
|
|
Kubeconfig: kubeproxyKubeConfigFileName,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "IPv4 bind address",
|
|
clusterCfg: kubeadmapi.ClusterConfiguration{},
|
|
endpoint: kubeadmapi.APIEndpoint{
|
|
AdvertiseAddress: "1.2.3.4",
|
|
},
|
|
expected: kubeProxyConfig{
|
|
config: kubeproxyconfig.KubeProxyConfiguration{
|
|
FeatureGates: map[string]bool{},
|
|
BindAddress: kubeadmapiv1beta2.DefaultProxyBindAddressv4,
|
|
ClientConnection: componentbaseconfig.ClientConnectionConfiguration{
|
|
Kubeconfig: kubeproxyKubeConfigFileName,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "ClusterCIDR is fetched from PodSubnet",
|
|
clusterCfg: kubeadmapi.ClusterConfiguration{
|
|
Networking: kubeadmapi.Networking{
|
|
PodSubnet: "192.168.0.0/16",
|
|
},
|
|
},
|
|
endpoint: kubeadmapi.APIEndpoint{},
|
|
expected: kubeProxyConfig{
|
|
config: kubeproxyconfig.KubeProxyConfiguration{
|
|
FeatureGates: map[string]bool{},
|
|
BindAddress: kubeadmapiv1beta2.DefaultProxyBindAddressv6,
|
|
ClientConnection: componentbaseconfig.ClientConnectionConfiguration{
|
|
Kubeconfig: kubeproxyKubeConfigFileName,
|
|
},
|
|
ClusterCIDR: "192.168.0.0/16",
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "IPv6DualStack feature gate set to true",
|
|
clusterCfg: kubeadmapi.ClusterConfiguration{
|
|
FeatureGates: map[string]bool{
|
|
features.IPv6DualStack: true,
|
|
},
|
|
},
|
|
endpoint: kubeadmapi.APIEndpoint{},
|
|
expected: kubeProxyConfig{
|
|
config: kubeproxyconfig.KubeProxyConfiguration{
|
|
FeatureGates: map[string]bool{
|
|
features.IPv6DualStack: true,
|
|
},
|
|
BindAddress: kubeadmapiv1beta2.DefaultProxyBindAddressv6,
|
|
ClientConnection: componentbaseconfig.ClientConnectionConfiguration{
|
|
Kubeconfig: kubeproxyKubeConfigFileName,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "IPv6DualStack feature gate set to false",
|
|
clusterCfg: kubeadmapi.ClusterConfiguration{
|
|
FeatureGates: map[string]bool{
|
|
features.IPv6DualStack: false,
|
|
},
|
|
},
|
|
endpoint: kubeadmapi.APIEndpoint{},
|
|
expected: kubeProxyConfig{
|
|
config: kubeproxyconfig.KubeProxyConfiguration{
|
|
FeatureGates: map[string]bool{
|
|
features.IPv6DualStack: false,
|
|
},
|
|
BindAddress: kubeadmapiv1beta2.DefaultProxyBindAddressv6,
|
|
ClientConnection: componentbaseconfig.ClientConnectionConfiguration{
|
|
Kubeconfig: kubeproxyKubeConfigFileName,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
got := &kubeProxyConfig{}
|
|
got.Default(&test.clusterCfg, &test.endpoint, &kubeadmapi.NodeRegistrationOptions{})
|
|
if !reflect.DeepEqual(got, &test.expected) {
|
|
t.Fatalf("Missmatch between expected and got:\nExpected:\n%v\n---\nGot:\n%v", test.expected, got)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// runKubeProxyFromTest holds common test case data and evaluation code for kubeProxyHandler.From* functions
|
|
func runKubeProxyFromTest(t *testing.T, perform func(t *testing.T, in string) (kubeadmapi.ComponentConfig, error)) {
|
|
tests := []struct {
|
|
name string
|
|
in string
|
|
out *kubeProxyConfig
|
|
expectErr bool
|
|
}{
|
|
{
|
|
name: "Empty document map should return nothing successfully",
|
|
},
|
|
{
|
|
name: "Non-empty non-kube-proxy document map returns nothing successfully",
|
|
in: dedent.Dedent(`
|
|
apiVersion: api.example.com/v1
|
|
kind: Configuration
|
|
`),
|
|
},
|
|
{
|
|
name: "Old kube-proxy version returns an error",
|
|
in: dedent.Dedent(`
|
|
apiVersion: kubeproxy.config.k8s.io/v1alpha0
|
|
kind: KubeProxyConfiguration
|
|
`),
|
|
expectErr: true,
|
|
},
|
|
{
|
|
name: "New kube-proxy version returns an error",
|
|
in: dedent.Dedent(`
|
|
apiVersion: kubeproxy.config.k8s.io/v1beta1
|
|
kind: KubeProxyConfiguration
|
|
`),
|
|
expectErr: true,
|
|
},
|
|
{
|
|
name: "Wrong kube-proxy kind returns an error",
|
|
in: dedent.Dedent(`
|
|
apiVersion: kubeproxy.config.k8s.io/v1alpha1
|
|
kind: Configuration
|
|
`),
|
|
expectErr: true,
|
|
},
|
|
{
|
|
name: "Valid kube-proxy only config gets loaded",
|
|
in: dedent.Dedent(`
|
|
apiVersion: kubeproxy.config.k8s.io/v1alpha1
|
|
kind: KubeProxyConfiguration
|
|
bindAddress: 1.2.3.4
|
|
enableProfiling: true
|
|
`),
|
|
out: &kubeProxyConfig{
|
|
config: kubeproxyconfig.KubeProxyConfiguration{
|
|
TypeMeta: metav1.TypeMeta{
|
|
APIVersion: kubeProxyHandler.GroupVersion.String(),
|
|
Kind: "KubeProxyConfiguration",
|
|
},
|
|
BindAddress: "1.2.3.4",
|
|
EnableProfiling: true,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
name: "Valid kube-proxy config gets loaded when coupled with an extra document",
|
|
in: dedent.Dedent(`
|
|
apiVersion: api.example.com/v1
|
|
kind: Configuration
|
|
---
|
|
apiVersion: kubeproxy.config.k8s.io/v1alpha1
|
|
kind: KubeProxyConfiguration
|
|
bindAddress: 1.2.3.4
|
|
enableProfiling: true
|
|
`),
|
|
out: &kubeProxyConfig{
|
|
config: kubeproxyconfig.KubeProxyConfiguration{
|
|
TypeMeta: metav1.TypeMeta{
|
|
APIVersion: kubeProxyHandler.GroupVersion.String(),
|
|
Kind: "KubeProxyConfiguration",
|
|
},
|
|
BindAddress: "1.2.3.4",
|
|
EnableProfiling: true,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
componentCfg, err := perform(t, test.in)
|
|
if err != nil {
|
|
if !test.expectErr {
|
|
t.Errorf("unexpected failure: %v", err)
|
|
}
|
|
} else {
|
|
if test.expectErr {
|
|
t.Error("unexpected success")
|
|
} else {
|
|
if componentCfg == nil {
|
|
if test.out != nil {
|
|
t.Error("unexpected nil result")
|
|
}
|
|
} else {
|
|
if got, ok := componentCfg.(*kubeProxyConfig); !ok {
|
|
t.Error("different result type")
|
|
} else {
|
|
if test.out == nil {
|
|
t.Errorf("unexpected result: %v", got)
|
|
} else if !reflect.DeepEqual(test.out, got) {
|
|
t.Errorf("missmatch between expected and got:\nExpected:\n%v\n---\nGot:\n%v", test.out, got)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestKubeProxyFromDocumentMap(t *testing.T) {
|
|
runKubeProxyFromTest(t, func(t *testing.T, in string) (kubeadmapi.ComponentConfig, error) {
|
|
gvkmap, err := kubeadmutil.SplitYAMLDocuments([]byte(in))
|
|
if err != nil {
|
|
t.Fatalf("unexpected failure of SplitYAMLDocuments: %v", err)
|
|
}
|
|
|
|
return kubeProxyHandler.FromDocumentMap(gvkmap)
|
|
})
|
|
}
|
|
|
|
func TestKubeProxyFromCluster(t *testing.T) {
|
|
runKubeProxyFromTest(t, func(t *testing.T, in string) (kubeadmapi.ComponentConfig, error) {
|
|
client := clientsetfake.NewSimpleClientset(
|
|
&v1.ConfigMap{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: constants.KubeProxyConfigMap,
|
|
Namespace: metav1.NamespaceSystem,
|
|
},
|
|
Data: map[string]string{
|
|
constants.KubeProxyConfigMapKey: in,
|
|
},
|
|
},
|
|
)
|
|
|
|
return kubeProxyHandler.FromCluster(client, &kubeadmapi.ClusterConfiguration{})
|
|
})
|
|
}
|