[release/v2.9] Add downstream triple (#2913)

* Use downstream triple package (#2910)

Upstream removed the triple package[0], in order to be able to upgrade
client-go we need to have a downsream version.

[0] kubernetes/kubernetes#70966

* Remove test occurence of the upstream triple package

api/pkg/controller/backup/backup_controller.go

@@ -21,6 +21,7 @@ import (
 	kubermaticv1 "github.com/kubermatic/kubermatic/api/pkg/crd/kubermatic/v1"
 	"github.com/kubermatic/kubermatic/api/pkg/resources"
 	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates"
+	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
 
 	"k8s.io/api/batch/v1"
 	batchv1beta1 "k8s.io/api/batch/v1beta1"
@@ -41,7 +42,6 @@ import (
 	listersbatchv1beta1 "k8s.io/client-go/listers/batch/v1beta1"
 	corev1lister "k8s.io/client-go/listers/core/v1"
 	"k8s.io/client-go/tools/cache"
-	"k8s.io/client-go/util/cert/triple"
 	"k8s.io/client-go/util/workqueue"
 )
 

api/pkg/controller/cluster/resources_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/kubermatic/kubermatic/api/pkg/provider"
 	"github.com/kubermatic/kubermatic/api/pkg/resources"
 	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates"
+	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
 	"github.com/kubermatic/kubermatic/api/pkg/semver"
 
 	corev1 "k8s.io/api/core/v1"
@@ -22,7 +23,6 @@ import (
 	listerscorev1 "k8s.io/client-go/listers/core/v1"
 	"k8s.io/client-go/tools/cache"
 	certutil "k8s.io/client-go/util/cert"
-	"k8s.io/client-go/util/cert/triple"
 )
 
 func TestLaunchingCreateNamespace(t *testing.T) {

api/pkg/resources/certificates/client-certificate.go

@@ -4,11 +4,11 @@ import (
 	"fmt"
 
 	"github.com/kubermatic/kubermatic/api/pkg/resources"
+	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
 
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	certutil "k8s.io/client-go/util/cert"
-	"k8s.io/client-go/util/cert/triple"
 )
 
 type templateDataProvider interface {

api/pkg/resources/certificates/root-ca.go

@@ -4,11 +4,11 @@ import (
 	"fmt"
 
 	"github.com/kubermatic/kubermatic/api/pkg/resources"
+	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
 
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	certutil "k8s.io/client-go/util/cert"
-	"k8s.io/client-go/util/cert/triple"
 )
 
 // GetCACreator returns a function to create a secret containing a CA with the specified name

api/vendor/k8s.io/client-go/util/cert/triple/triple.go → api/pkg/resources/certificates/triple/triple.go

@@ -1,13 +1,10 @@
 /*
 Copyright 2016 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
+ 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
+     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

api/pkg/resources/data.go

@@ -10,12 +10,12 @@ import (
 	"github.com/golang/glog"
 	kubermaticv1 "github.com/kubermatic/kubermatic/api/pkg/crd/kubermatic/v1"
 	"github.com/kubermatic/kubermatic/api/pkg/provider"
+	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
 
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	corev1lister "k8s.io/client-go/listers/core/v1"
-	"k8s.io/client-go/util/cert/triple"
 )
 
 // TemplateData is a group of data required for template generation

api/pkg/resources/kubeconfig.go

@@ -4,14 +4,15 @@ import (
 	"crypto/x509"
 	"fmt"
 
+	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
+
 	"github.com/golang/glog"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/equality"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/client-go/tools/clientcmd"
 	clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
 	certutil "k8s.io/client-go/util/cert"
-	"k8s.io/client-go/util/cert/triple"
 )
 
 // AdminKubeconfig returns a secret with the AdminKubeconfig key

api/pkg/resources/kubeconfig_test.go

@@ -10,9 +10,9 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	kubermaticv1 "github.com/kubermatic/kubermatic/api/pkg/crd/kubermatic/v1"
+	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
 
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/client-go/util/cert/triple"
 )
 
 func TestGetBaseKubeconfig(t *testing.T) {

api/pkg/resources/machinecontroller/webhook.go

@@ -6,6 +6,7 @@ import (
 	kubermaticv1 "github.com/kubermatic/kubermatic/api/pkg/crd/kubermatic/v1"
 	"github.com/kubermatic/kubermatic/api/pkg/resources"
 	"github.com/kubermatic/kubermatic/api/pkg/resources/apiserver"
+	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
 
 	admissionregistrationv1beta1 "k8s.io/api/admissionregistration/v1beta1"
 	appsv1 "k8s.io/api/apps/v1"
@@ -14,7 +15,6 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/intstr"
 	certutil "k8s.io/client-go/util/cert"
-	"k8s.io/client-go/util/cert/triple"
 )
 
 var (

api/pkg/resources/resources.go

@@ -14,6 +14,7 @@ import (
 	"time"
 
 	kubermaticv1 "github.com/kubermatic/kubermatic/api/pkg/crd/kubermatic/v1"
+	"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
 	"github.com/kubermatic/kubermatic/api/pkg/semver"
 
 	"github.com/golang/glog"
@@ -31,7 +32,6 @@ import (
 	"k8s.io/apimachinery/pkg/util/sets"
 	corev1lister "k8s.io/client-go/listers/core/v1"
 	certutil "k8s.io/client-go/util/cert"
-	"k8s.io/client-go/util/cert/triple"
 	apiregistrationv1beta1 "k8s.io/kube-aggregator/pkg/apis/apiregistration/v1beta1"
 
 	autoscalingv1beta "k8s.io/autoscaler/vertical-pod-autoscaler/pkg/apis/autoscaling.k8s.io/v1beta1"