7634cc01c5
kube-controller-manager. If a service CIDR that overlaps with the cluster CIDR is specified to kube-controller-manager then kube-controller- manager will incorrectly allocate node CIDRs that overlap with the service CIDR. The fix ensure that kubeadm maps the --service-cidr to --service-cluster-ip-range for use by kube-controller-manager. As per docs, --allocate-node-cidrs must be true for --service-cluster-ip-range to be considered. It does not make sense for --cluster-cidr to be unspecified but for --service-cluster-ip-range and --allocate-node-cidrs to be set, since the purpose of these options is to have the controller-manager do the per node CIDR allocation. Also note that --service-cluster-ip-range is passed to the api-server, so the presence of *just* --service-cluster-ip-range should not imply that --allocate-node-cidrs should be true. Resolves: kubernetes/kubeadm/issues/1591
964 lines
35 KiB
Go
964 lines
35 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package controlplane
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import (
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"fmt"
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"os"
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"path/filepath"
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"reflect"
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"sort"
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"strings"
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"testing"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/apimachinery/pkg/util/version"
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kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
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kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
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"k8s.io/kubernetes/cmd/kubeadm/app/phases/certs"
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authzmodes "k8s.io/kubernetes/pkg/kubeapiserver/authorizer/modes"
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testutil "k8s.io/kubernetes/cmd/kubeadm/test"
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)
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const (
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testCertsDir = "/var/lib/certs"
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)
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var cpVersion = kubeadmconstants.MinimumControlPlaneVersion.WithPreRelease("beta.2").String()
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func TestGetStaticPodSpecs(t *testing.T) {
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// Creates a Cluster Configuration
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cfg := &kubeadmapi.ClusterConfiguration{
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KubernetesVersion: "v1.9.0",
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}
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// Executes GetStaticPodSpecs
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// TODO: Move the "pkg/util/version".Version object into the internal API instead of always parsing the string
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k8sVersion, _ := version.ParseSemantic(cfg.KubernetesVersion)
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specs := GetStaticPodSpecs(cfg, &kubeadmapi.APIEndpoint{}, k8sVersion)
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var tests = []struct {
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name string
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staticPodName string
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}{
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{
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name: "KubeAPIServer",
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staticPodName: kubeadmconstants.KubeAPIServer,
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},
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{
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name: "KubeControllerManager",
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staticPodName: kubeadmconstants.KubeControllerManager,
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},
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{
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name: "KubeScheduler",
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staticPodName: kubeadmconstants.KubeScheduler,
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},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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// assert the spec for the staticPodName exists
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if spec, ok := specs[tc.staticPodName]; ok {
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// Assert each specs refers to the right pod
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if spec.Spec.Containers[0].Name != tc.staticPodName {
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t.Errorf("getKubeConfigSpecs spec for %s contains pod %s, expects %s", tc.staticPodName, spec.Spec.Containers[0].Name, tc.staticPodName)
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}
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} else {
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t.Errorf("getStaticPodSpecs didn't create spec for %s ", tc.staticPodName)
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}
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})
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}
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}
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func TestCreateStaticPodFilesAndWrappers(t *testing.T) {
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var tests = []struct {
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name string
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components []string
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}{
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{
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name: "KubeAPIServer KubeAPIServer KubeScheduler",
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components: []string{kubeadmconstants.KubeAPIServer, kubeadmconstants.KubeControllerManager, kubeadmconstants.KubeScheduler},
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},
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{
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name: "KubeAPIServer",
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components: []string{kubeadmconstants.KubeAPIServer},
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},
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{
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name: "KubeControllerManager",
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components: []string{kubeadmconstants.KubeControllerManager},
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},
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{
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name: "KubeScheduler",
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components: []string{kubeadmconstants.KubeScheduler},
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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// Create temp folder for the test case
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tmpdir := testutil.SetupTempDir(t)
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defer os.RemoveAll(tmpdir)
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// Creates a Cluster Configuration
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cfg := &kubeadmapi.ClusterConfiguration{
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KubernetesVersion: "v1.9.0",
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}
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// Execute createStaticPodFunction
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manifestPath := filepath.Join(tmpdir, kubeadmconstants.ManifestsSubDirName)
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err := CreateStaticPodFiles(manifestPath, cfg, &kubeadmapi.APIEndpoint{}, test.components...)
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if err != nil {
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t.Errorf("Error executing createStaticPodFunction: %v", err)
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return
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}
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// Assert expected files are there
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testutil.AssertFilesCount(t, manifestPath, len(test.components))
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for _, fileName := range test.components {
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testutil.AssertFileExists(t, manifestPath, fileName+".yaml")
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}
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})
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}
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}
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func TestGetAPIServerCommand(t *testing.T) {
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var tests = []struct {
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name string
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cfg *kubeadmapi.ClusterConfiguration
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endpoint *kubeadmapi.APIEndpoint
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expected []string
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}{
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{
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name: "testing defaults",
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cfg: &kubeadmapi.ClusterConfiguration{
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Networking: kubeadmapi.Networking{ServiceSubnet: "bar"},
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CertificatesDir: testCertsDir,
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},
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endpoint: &kubeadmapi.APIEndpoint{BindPort: 123, AdvertiseAddress: "1.2.3.4"},
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expected: []string{
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"kube-apiserver",
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"--insecure-port=0",
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"--enable-admission-plugins=NodeRestriction",
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"--service-cluster-ip-range=bar",
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"--service-account-key-file=" + testCertsDir + "/sa.pub",
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"--client-ca-file=" + testCertsDir + "/ca.crt",
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"--tls-cert-file=" + testCertsDir + "/apiserver.crt",
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"--tls-private-key-file=" + testCertsDir + "/apiserver.key",
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"--kubelet-client-certificate=" + testCertsDir + "/apiserver-kubelet-client.crt",
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"--kubelet-client-key=" + testCertsDir + "/apiserver-kubelet-client.key",
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"--enable-bootstrap-token-auth=true",
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"--secure-port=123",
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"--allow-privileged=true",
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"--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname",
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"--proxy-client-cert-file=/var/lib/certs/front-proxy-client.crt",
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"--proxy-client-key-file=/var/lib/certs/front-proxy-client.key",
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"--requestheader-username-headers=X-Remote-User",
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"--requestheader-group-headers=X-Remote-Group",
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"--requestheader-extra-headers-prefix=X-Remote-Extra-",
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"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
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"--requestheader-allowed-names=front-proxy-client",
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"--authorization-mode=Node,RBAC",
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"--advertise-address=1.2.3.4",
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fmt.Sprintf("--etcd-servers=https://127.0.0.1:%d", kubeadmconstants.EtcdListenClientPort),
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"--etcd-cafile=" + testCertsDir + "/etcd/ca.crt",
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"--etcd-certfile=" + testCertsDir + "/apiserver-etcd-client.crt",
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"--etcd-keyfile=" + testCertsDir + "/apiserver-etcd-client.key",
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},
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},
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{
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name: "ipv6 advertise address",
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cfg: &kubeadmapi.ClusterConfiguration{
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Networking: kubeadmapi.Networking{ServiceSubnet: "bar"},
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CertificatesDir: testCertsDir,
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},
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endpoint: &kubeadmapi.APIEndpoint{BindPort: 123, AdvertiseAddress: "2001:db8::1"},
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expected: []string{
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"kube-apiserver",
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"--insecure-port=0",
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"--enable-admission-plugins=NodeRestriction",
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"--service-cluster-ip-range=bar",
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"--service-account-key-file=" + testCertsDir + "/sa.pub",
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"--client-ca-file=" + testCertsDir + "/ca.crt",
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"--tls-cert-file=" + testCertsDir + "/apiserver.crt",
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"--tls-private-key-file=" + testCertsDir + "/apiserver.key",
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"--kubelet-client-certificate=" + testCertsDir + "/apiserver-kubelet-client.crt",
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"--kubelet-client-key=" + testCertsDir + "/apiserver-kubelet-client.key",
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"--enable-bootstrap-token-auth=true",
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fmt.Sprintf("--secure-port=%d", 123),
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"--allow-privileged=true",
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"--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname",
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"--proxy-client-cert-file=/var/lib/certs/front-proxy-client.crt",
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"--proxy-client-key-file=/var/lib/certs/front-proxy-client.key",
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"--requestheader-username-headers=X-Remote-User",
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"--requestheader-group-headers=X-Remote-Group",
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"--requestheader-extra-headers-prefix=X-Remote-Extra-",
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"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
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"--requestheader-allowed-names=front-proxy-client",
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"--authorization-mode=Node,RBAC",
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"--advertise-address=2001:db8::1",
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fmt.Sprintf("--etcd-servers=https://127.0.0.1:%d", kubeadmconstants.EtcdListenClientPort),
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"--etcd-cafile=" + testCertsDir + "/etcd/ca.crt",
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"--etcd-certfile=" + testCertsDir + "/apiserver-etcd-client.crt",
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"--etcd-keyfile=" + testCertsDir + "/apiserver-etcd-client.key",
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},
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},
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{
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name: "an external etcd with custom ca, certs and keys",
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cfg: &kubeadmapi.ClusterConfiguration{
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Networking: kubeadmapi.Networking{ServiceSubnet: "bar"},
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Etcd: kubeadmapi.Etcd{
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External: &kubeadmapi.ExternalEtcd{
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Endpoints: []string{"https://8.6.4.1:2379", "https://8.6.4.2:2379"},
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CAFile: "fuz",
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CertFile: "fiz",
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KeyFile: "faz",
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},
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},
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CertificatesDir: testCertsDir,
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},
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endpoint: &kubeadmapi.APIEndpoint{BindPort: 123, AdvertiseAddress: "2001:db8::1"},
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expected: []string{
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"kube-apiserver",
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"--insecure-port=0",
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"--enable-admission-plugins=NodeRestriction",
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"--service-cluster-ip-range=bar",
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"--service-account-key-file=" + testCertsDir + "/sa.pub",
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"--client-ca-file=" + testCertsDir + "/ca.crt",
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"--tls-cert-file=" + testCertsDir + "/apiserver.crt",
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"--tls-private-key-file=" + testCertsDir + "/apiserver.key",
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"--kubelet-client-certificate=" + testCertsDir + "/apiserver-kubelet-client.crt",
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"--kubelet-client-key=" + testCertsDir + "/apiserver-kubelet-client.key",
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fmt.Sprintf("--secure-port=%d", 123),
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"--allow-privileged=true",
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"--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname",
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"--enable-bootstrap-token-auth=true",
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"--proxy-client-cert-file=/var/lib/certs/front-proxy-client.crt",
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"--proxy-client-key-file=/var/lib/certs/front-proxy-client.key",
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"--requestheader-username-headers=X-Remote-User",
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"--requestheader-group-headers=X-Remote-Group",
|
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"--requestheader-extra-headers-prefix=X-Remote-Extra-",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
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"--requestheader-allowed-names=front-proxy-client",
|
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"--authorization-mode=Node,RBAC",
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"--advertise-address=2001:db8::1",
|
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"--etcd-servers=https://8.6.4.1:2379,https://8.6.4.2:2379",
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"--etcd-cafile=fuz",
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"--etcd-certfile=fiz",
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"--etcd-keyfile=faz",
|
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},
|
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},
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{
|
|
name: "an insecure etcd",
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cfg: &kubeadmapi.ClusterConfiguration{
|
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Networking: kubeadmapi.Networking{ServiceSubnet: "bar"},
|
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Etcd: kubeadmapi.Etcd{
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External: &kubeadmapi.ExternalEtcd{
|
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Endpoints: []string{"http://127.0.0.1:2379", "http://127.0.0.1:2380"},
|
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},
|
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},
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CertificatesDir: testCertsDir,
|
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},
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endpoint: &kubeadmapi.APIEndpoint{BindPort: 123, AdvertiseAddress: "2001:db8::1"},
|
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expected: []string{
|
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"kube-apiserver",
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"--insecure-port=0",
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"--enable-admission-plugins=NodeRestriction",
|
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"--service-cluster-ip-range=bar",
|
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"--service-account-key-file=" + testCertsDir + "/sa.pub",
|
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"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--tls-cert-file=" + testCertsDir + "/apiserver.crt",
|
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"--tls-private-key-file=" + testCertsDir + "/apiserver.key",
|
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"--kubelet-client-certificate=" + testCertsDir + "/apiserver-kubelet-client.crt",
|
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"--kubelet-client-key=" + testCertsDir + "/apiserver-kubelet-client.key",
|
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fmt.Sprintf("--secure-port=%d", 123),
|
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"--allow-privileged=true",
|
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"--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname",
|
|
"--enable-bootstrap-token-auth=true",
|
|
"--proxy-client-cert-file=/var/lib/certs/front-proxy-client.crt",
|
|
"--proxy-client-key-file=/var/lib/certs/front-proxy-client.key",
|
|
"--requestheader-username-headers=X-Remote-User",
|
|
"--requestheader-group-headers=X-Remote-Group",
|
|
"--requestheader-extra-headers-prefix=X-Remote-Extra-",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
"--requestheader-allowed-names=front-proxy-client",
|
|
"--authorization-mode=Node,RBAC",
|
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"--advertise-address=2001:db8::1",
|
|
"--etcd-servers=http://127.0.0.1:2379,http://127.0.0.1:2380",
|
|
},
|
|
},
|
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{
|
|
name: "test APIServer.ExtraArgs works as expected",
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cfg: &kubeadmapi.ClusterConfiguration{
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Networking: kubeadmapi.Networking{ServiceSubnet: "bar"},
|
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CertificatesDir: testCertsDir,
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APIServer: kubeadmapi.APIServer{
|
|
ControlPlaneComponent: kubeadmapi.ControlPlaneComponent{
|
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ExtraArgs: map[string]string{
|
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"service-cluster-ip-range": "baz",
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"advertise-address": "9.9.9.9",
|
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"audit-policy-file": "/etc/config/audit.yaml",
|
|
"audit-log-path": "/var/log/kubernetes",
|
|
},
|
|
},
|
|
},
|
|
},
|
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endpoint: &kubeadmapi.APIEndpoint{BindPort: 123, AdvertiseAddress: "1.2.3.4"},
|
|
expected: []string{
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|
"kube-apiserver",
|
|
"--insecure-port=0",
|
|
"--enable-admission-plugins=NodeRestriction",
|
|
"--service-cluster-ip-range=baz",
|
|
"--service-account-key-file=" + testCertsDir + "/sa.pub",
|
|
"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--tls-cert-file=" + testCertsDir + "/apiserver.crt",
|
|
"--tls-private-key-file=" + testCertsDir + "/apiserver.key",
|
|
"--kubelet-client-certificate=" + testCertsDir + "/apiserver-kubelet-client.crt",
|
|
"--kubelet-client-key=" + testCertsDir + "/apiserver-kubelet-client.key",
|
|
"--enable-bootstrap-token-auth=true",
|
|
"--secure-port=123",
|
|
"--allow-privileged=true",
|
|
"--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname",
|
|
"--proxy-client-cert-file=/var/lib/certs/front-proxy-client.crt",
|
|
"--proxy-client-key-file=/var/lib/certs/front-proxy-client.key",
|
|
"--requestheader-username-headers=X-Remote-User",
|
|
"--requestheader-group-headers=X-Remote-Group",
|
|
"--requestheader-extra-headers-prefix=X-Remote-Extra-",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
"--requestheader-allowed-names=front-proxy-client",
|
|
"--authorization-mode=Node,RBAC",
|
|
"--advertise-address=9.9.9.9",
|
|
fmt.Sprintf("--etcd-servers=https://127.0.0.1:%d", kubeadmconstants.EtcdListenClientPort),
|
|
"--etcd-cafile=" + testCertsDir + "/etcd/ca.crt",
|
|
"--etcd-certfile=" + testCertsDir + "/apiserver-etcd-client.crt",
|
|
"--etcd-keyfile=" + testCertsDir + "/apiserver-etcd-client.key",
|
|
"--audit-policy-file=/etc/config/audit.yaml",
|
|
"--audit-log-path=/var/log/kubernetes",
|
|
},
|
|
},
|
|
{
|
|
name: "authorization-mode extra-args ABAC",
|
|
cfg: &kubeadmapi.ClusterConfiguration{
|
|
Networking: kubeadmapi.Networking{ServiceSubnet: "bar"},
|
|
CertificatesDir: testCertsDir,
|
|
APIServer: kubeadmapi.APIServer{
|
|
ControlPlaneComponent: kubeadmapi.ControlPlaneComponent{
|
|
ExtraArgs: map[string]string{
|
|
"authorization-mode": authzmodes.ModeABAC,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
endpoint: &kubeadmapi.APIEndpoint{BindPort: 123, AdvertiseAddress: "1.2.3.4"},
|
|
expected: []string{
|
|
"kube-apiserver",
|
|
"--insecure-port=0",
|
|
"--enable-admission-plugins=NodeRestriction",
|
|
"--service-cluster-ip-range=bar",
|
|
"--service-account-key-file=" + testCertsDir + "/sa.pub",
|
|
"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--tls-cert-file=" + testCertsDir + "/apiserver.crt",
|
|
"--tls-private-key-file=" + testCertsDir + "/apiserver.key",
|
|
"--kubelet-client-certificate=" + testCertsDir + "/apiserver-kubelet-client.crt",
|
|
"--kubelet-client-key=" + testCertsDir + "/apiserver-kubelet-client.key",
|
|
"--enable-bootstrap-token-auth=true",
|
|
"--secure-port=123",
|
|
"--allow-privileged=true",
|
|
"--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname",
|
|
"--proxy-client-cert-file=/var/lib/certs/front-proxy-client.crt",
|
|
"--proxy-client-key-file=/var/lib/certs/front-proxy-client.key",
|
|
"--requestheader-username-headers=X-Remote-User",
|
|
"--requestheader-group-headers=X-Remote-Group",
|
|
"--requestheader-extra-headers-prefix=X-Remote-Extra-",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
"--requestheader-allowed-names=front-proxy-client",
|
|
"--authorization-mode=Node,RBAC,ABAC",
|
|
"--advertise-address=1.2.3.4",
|
|
fmt.Sprintf("--etcd-servers=https://127.0.0.1:%d", kubeadmconstants.EtcdListenClientPort),
|
|
"--etcd-cafile=" + testCertsDir + "/etcd/ca.crt",
|
|
"--etcd-certfile=" + testCertsDir + "/apiserver-etcd-client.crt",
|
|
"--etcd-keyfile=" + testCertsDir + "/apiserver-etcd-client.key",
|
|
},
|
|
},
|
|
{
|
|
name: "insecure-port extra-args",
|
|
cfg: &kubeadmapi.ClusterConfiguration{
|
|
Networking: kubeadmapi.Networking{ServiceSubnet: "bar"},
|
|
CertificatesDir: testCertsDir,
|
|
APIServer: kubeadmapi.APIServer{
|
|
ControlPlaneComponent: kubeadmapi.ControlPlaneComponent{
|
|
ExtraArgs: map[string]string{
|
|
"insecure-port": "1234",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
endpoint: &kubeadmapi.APIEndpoint{BindPort: 123, AdvertiseAddress: "1.2.3.4"},
|
|
expected: []string{
|
|
"kube-apiserver",
|
|
"--insecure-port=1234",
|
|
"--enable-admission-plugins=NodeRestriction",
|
|
"--service-cluster-ip-range=bar",
|
|
"--service-account-key-file=" + testCertsDir + "/sa.pub",
|
|
"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--tls-cert-file=" + testCertsDir + "/apiserver.crt",
|
|
"--tls-private-key-file=" + testCertsDir + "/apiserver.key",
|
|
"--kubelet-client-certificate=" + testCertsDir + "/apiserver-kubelet-client.crt",
|
|
"--kubelet-client-key=" + testCertsDir + "/apiserver-kubelet-client.key",
|
|
"--enable-bootstrap-token-auth=true",
|
|
"--secure-port=123",
|
|
"--allow-privileged=true",
|
|
"--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname",
|
|
"--proxy-client-cert-file=/var/lib/certs/front-proxy-client.crt",
|
|
"--proxy-client-key-file=/var/lib/certs/front-proxy-client.key",
|
|
"--requestheader-username-headers=X-Remote-User",
|
|
"--requestheader-group-headers=X-Remote-Group",
|
|
"--requestheader-extra-headers-prefix=X-Remote-Extra-",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
"--requestheader-allowed-names=front-proxy-client",
|
|
"--authorization-mode=Node,RBAC",
|
|
"--advertise-address=1.2.3.4",
|
|
fmt.Sprintf("--etcd-servers=https://127.0.0.1:%d", kubeadmconstants.EtcdListenClientPort),
|
|
"--etcd-cafile=" + testCertsDir + "/etcd/ca.crt",
|
|
"--etcd-certfile=" + testCertsDir + "/apiserver-etcd-client.crt",
|
|
"--etcd-keyfile=" + testCertsDir + "/apiserver-etcd-client.key",
|
|
},
|
|
},
|
|
{
|
|
name: "authorization-mode extra-args Webhook",
|
|
cfg: &kubeadmapi.ClusterConfiguration{
|
|
Networking: kubeadmapi.Networking{ServiceSubnet: "bar"},
|
|
CertificatesDir: testCertsDir,
|
|
APIServer: kubeadmapi.APIServer{
|
|
ControlPlaneComponent: kubeadmapi.ControlPlaneComponent{
|
|
ExtraArgs: map[string]string{
|
|
"authorization-mode": authzmodes.ModeWebhook,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
endpoint: &kubeadmapi.APIEndpoint{BindPort: 123, AdvertiseAddress: "1.2.3.4"},
|
|
expected: []string{
|
|
"kube-apiserver",
|
|
"--insecure-port=0",
|
|
"--enable-admission-plugins=NodeRestriction",
|
|
"--service-cluster-ip-range=bar",
|
|
"--service-account-key-file=" + testCertsDir + "/sa.pub",
|
|
"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--tls-cert-file=" + testCertsDir + "/apiserver.crt",
|
|
"--tls-private-key-file=" + testCertsDir + "/apiserver.key",
|
|
"--kubelet-client-certificate=" + testCertsDir + "/apiserver-kubelet-client.crt",
|
|
"--kubelet-client-key=" + testCertsDir + "/apiserver-kubelet-client.key",
|
|
"--enable-bootstrap-token-auth=true",
|
|
"--secure-port=123",
|
|
"--allow-privileged=true",
|
|
"--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname",
|
|
"--proxy-client-cert-file=/var/lib/certs/front-proxy-client.crt",
|
|
"--proxy-client-key-file=/var/lib/certs/front-proxy-client.key",
|
|
"--requestheader-username-headers=X-Remote-User",
|
|
"--requestheader-group-headers=X-Remote-Group",
|
|
"--requestheader-extra-headers-prefix=X-Remote-Extra-",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
"--requestheader-allowed-names=front-proxy-client",
|
|
"--authorization-mode=Node,RBAC,Webhook",
|
|
"--advertise-address=1.2.3.4",
|
|
fmt.Sprintf("--etcd-servers=https://127.0.0.1:%d", kubeadmconstants.EtcdListenClientPort),
|
|
"--etcd-cafile=" + testCertsDir + "/etcd/ca.crt",
|
|
"--etcd-certfile=" + testCertsDir + "/apiserver-etcd-client.crt",
|
|
"--etcd-keyfile=" + testCertsDir + "/apiserver-etcd-client.key",
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, rt := range tests {
|
|
t.Run(rt.name, func(t *testing.T) {
|
|
actual := getAPIServerCommand(rt.cfg, rt.endpoint)
|
|
sort.Strings(actual)
|
|
sort.Strings(rt.expected)
|
|
if !reflect.DeepEqual(actual, rt.expected) {
|
|
errorDiffArguments(t, rt.name, actual, rt.expected)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func errorDiffArguments(t *testing.T, name string, actual, expected []string) {
|
|
expectedShort := removeCommon(expected, actual)
|
|
actualShort := removeCommon(actual, expected)
|
|
t.Errorf(
|
|
"[%s] failed getAPIServerCommand:\nexpected:\n%v\nsaw:\n%v"+
|
|
"\nexpectedShort:\n%v\nsawShort:\n%v\n",
|
|
name, expected, actual,
|
|
expectedShort, actualShort)
|
|
}
|
|
|
|
// removeCommon removes common items from left list
|
|
// makes compairing two cmdline (with lots of arguments) easier
|
|
func removeCommon(left, right []string) []string {
|
|
origSet := sets.NewString(left...)
|
|
origSet.Delete(right...)
|
|
return origSet.List()
|
|
}
|
|
|
|
func TestGetControllerManagerCommand(t *testing.T) {
|
|
var tests = []struct {
|
|
name string
|
|
cfg *kubeadmapi.ClusterConfiguration
|
|
expected []string
|
|
}{
|
|
{
|
|
name: "custom certs dir for " + cpVersion,
|
|
cfg: &kubeadmapi.ClusterConfiguration{
|
|
CertificatesDir: testCertsDir,
|
|
KubernetesVersion: cpVersion,
|
|
},
|
|
expected: []string{
|
|
"kube-controller-manager",
|
|
"--bind-address=127.0.0.1",
|
|
"--leader-elect=true",
|
|
"--kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--root-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--service-account-private-key-file=" + testCertsDir + "/sa.key",
|
|
"--cluster-signing-cert-file=" + testCertsDir + "/ca.crt",
|
|
"--cluster-signing-key-file=" + testCertsDir + "/ca.key",
|
|
"--use-service-account-credentials=true",
|
|
"--controllers=*,bootstrapsigner,tokencleaner",
|
|
"--authentication-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--authorization-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
},
|
|
},
|
|
{
|
|
name: "custom cluster-cidr for " + cpVersion,
|
|
cfg: &kubeadmapi.ClusterConfiguration{
|
|
Networking: kubeadmapi.Networking{PodSubnet: "10.0.1.15/16"},
|
|
CertificatesDir: testCertsDir,
|
|
KubernetesVersion: cpVersion,
|
|
},
|
|
expected: []string{
|
|
"kube-controller-manager",
|
|
"--bind-address=127.0.0.1",
|
|
"--leader-elect=true",
|
|
"--kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--root-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--service-account-private-key-file=" + testCertsDir + "/sa.key",
|
|
"--cluster-signing-cert-file=" + testCertsDir + "/ca.crt",
|
|
"--cluster-signing-key-file=" + testCertsDir + "/ca.key",
|
|
"--use-service-account-credentials=true",
|
|
"--controllers=*,bootstrapsigner,tokencleaner",
|
|
"--authentication-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--authorization-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
"--allocate-node-cidrs=true",
|
|
"--cluster-cidr=10.0.1.15/16",
|
|
"--node-cidr-mask-size=24",
|
|
},
|
|
},
|
|
{
|
|
name: "custom service-cluster-ip-range for " + cpVersion,
|
|
cfg: &kubeadmapi.ClusterConfiguration{
|
|
Networking: kubeadmapi.Networking{
|
|
PodSubnet: "10.0.1.15/16",
|
|
ServiceSubnet: "172.20.0.0/24"},
|
|
CertificatesDir: testCertsDir,
|
|
KubernetesVersion: cpVersion,
|
|
},
|
|
expected: []string{
|
|
"kube-controller-manager",
|
|
"--bind-address=127.0.0.1",
|
|
"--leader-elect=true",
|
|
"--kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--root-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--service-account-private-key-file=" + testCertsDir + "/sa.key",
|
|
"--cluster-signing-cert-file=" + testCertsDir + "/ca.crt",
|
|
"--cluster-signing-key-file=" + testCertsDir + "/ca.key",
|
|
"--use-service-account-credentials=true",
|
|
"--controllers=*,bootstrapsigner,tokencleaner",
|
|
"--authentication-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--authorization-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
"--allocate-node-cidrs=true",
|
|
"--cluster-cidr=10.0.1.15/16",
|
|
"--node-cidr-mask-size=24",
|
|
"--service-cluster-ip-range=172.20.0.0/24",
|
|
},
|
|
},
|
|
{
|
|
name: "custom extra-args for " + cpVersion,
|
|
cfg: &kubeadmapi.ClusterConfiguration{
|
|
Networking: kubeadmapi.Networking{PodSubnet: "10.0.1.15/16"},
|
|
ControllerManager: kubeadmapi.ControlPlaneComponent{
|
|
ExtraArgs: map[string]string{"node-cidr-mask-size": "20"},
|
|
},
|
|
CertificatesDir: testCertsDir,
|
|
KubernetesVersion: cpVersion,
|
|
},
|
|
expected: []string{
|
|
"kube-controller-manager",
|
|
"--bind-address=127.0.0.1",
|
|
"--leader-elect=true",
|
|
"--kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--root-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--service-account-private-key-file=" + testCertsDir + "/sa.key",
|
|
"--cluster-signing-cert-file=" + testCertsDir + "/ca.crt",
|
|
"--cluster-signing-key-file=" + testCertsDir + "/ca.key",
|
|
"--use-service-account-credentials=true",
|
|
"--controllers=*,bootstrapsigner,tokencleaner",
|
|
"--authentication-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--authorization-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
"--allocate-node-cidrs=true",
|
|
"--cluster-cidr=10.0.1.15/16",
|
|
"--node-cidr-mask-size=20",
|
|
},
|
|
},
|
|
{
|
|
name: "custom IPv6 networking for " + cpVersion,
|
|
cfg: &kubeadmapi.ClusterConfiguration{
|
|
Networking: kubeadmapi.Networking{
|
|
PodSubnet: "2001:db8::/64",
|
|
ServiceSubnet: "fd03::/112",
|
|
},
|
|
CertificatesDir: testCertsDir,
|
|
KubernetesVersion: cpVersion,
|
|
},
|
|
expected: []string{
|
|
"kube-controller-manager",
|
|
"--bind-address=127.0.0.1",
|
|
"--leader-elect=true",
|
|
"--kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--root-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--service-account-private-key-file=" + testCertsDir + "/sa.key",
|
|
"--cluster-signing-cert-file=" + testCertsDir + "/ca.crt",
|
|
"--cluster-signing-key-file=" + testCertsDir + "/ca.key",
|
|
"--use-service-account-credentials=true",
|
|
"--controllers=*,bootstrapsigner,tokencleaner",
|
|
"--authentication-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--authorization-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--client-ca-file=" + testCertsDir + "/ca.crt",
|
|
"--requestheader-client-ca-file=" + testCertsDir + "/front-proxy-ca.crt",
|
|
"--allocate-node-cidrs=true",
|
|
"--cluster-cidr=2001:db8::/64",
|
|
"--node-cidr-mask-size=80",
|
|
"--service-cluster-ip-range=fd03::/112",
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, rt := range tests {
|
|
t.Run(rt.name, func(t *testing.T) {
|
|
actual := getControllerManagerCommand(rt.cfg, version.MustParseSemantic(rt.cfg.KubernetesVersion))
|
|
sort.Strings(actual)
|
|
sort.Strings(rt.expected)
|
|
if !reflect.DeepEqual(actual, rt.expected) {
|
|
errorDiffArguments(t, rt.name, actual, rt.expected)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCalcNodeCidrSize(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
podSubnet string
|
|
expectedPrefix string
|
|
}{
|
|
{
|
|
name: "Malformed pod subnet",
|
|
podSubnet: "10.10.10/160",
|
|
expectedPrefix: "24",
|
|
},
|
|
{
|
|
name: "V4: Always uses 24",
|
|
podSubnet: "10.10.10.10/16",
|
|
expectedPrefix: "24",
|
|
},
|
|
{
|
|
name: "V6: Use pod subnet size, when not enough space",
|
|
podSubnet: "2001:db8::/128",
|
|
expectedPrefix: "128",
|
|
},
|
|
{
|
|
name: "V6: Use pod subnet size, when not enough space",
|
|
podSubnet: "2001:db8::/113",
|
|
expectedPrefix: "113",
|
|
},
|
|
{
|
|
name: "V6: Special case with 256 nodes",
|
|
podSubnet: "2001:db8::/112",
|
|
expectedPrefix: "120",
|
|
},
|
|
{
|
|
name: "V6: Using /120 for node CIDR",
|
|
podSubnet: "2001:db8::/104",
|
|
expectedPrefix: "120",
|
|
},
|
|
{
|
|
name: "V6: Using /112 for node CIDR",
|
|
podSubnet: "2001:db8::/103",
|
|
expectedPrefix: "112",
|
|
},
|
|
{
|
|
name: "V6: Using /112 for node CIDR",
|
|
podSubnet: "2001:db8::/96",
|
|
expectedPrefix: "112",
|
|
},
|
|
{
|
|
name: "V6: Using /104 for node CIDR",
|
|
podSubnet: "2001:db8::/95",
|
|
expectedPrefix: "104",
|
|
},
|
|
{
|
|
name: "V6: For /64 pod net, use /80",
|
|
podSubnet: "2001:db8::/64",
|
|
expectedPrefix: "80",
|
|
},
|
|
{
|
|
name: "V6: For /48 pod net, use /64",
|
|
podSubnet: "2001:db8::/48",
|
|
expectedPrefix: "64",
|
|
},
|
|
{
|
|
name: "V6: For /32 pod net, use /48",
|
|
podSubnet: "2001:db8::/32",
|
|
expectedPrefix: "48",
|
|
},
|
|
}
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
actualPrefix := calcNodeCidrSize(test.podSubnet)
|
|
if actualPrefix != test.expectedPrefix {
|
|
t.Errorf("Case [%s]\nCalc of node CIDR size for pod subnet %q failed: Expected %q, saw %q",
|
|
test.name, test.podSubnet, test.expectedPrefix, actualPrefix)
|
|
}
|
|
})
|
|
}
|
|
|
|
}
|
|
func TestGetControllerManagerCommandExternalCA(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
cfg *kubeadmapi.InitConfiguration
|
|
caKeyPresent bool
|
|
expectedArgFunc func(dir string) []string
|
|
}{
|
|
{
|
|
name: "caKeyPresent-false for " + cpVersion,
|
|
cfg: &kubeadmapi.InitConfiguration{
|
|
LocalAPIEndpoint: kubeadmapi.APIEndpoint{AdvertiseAddress: "1.2.3.4"},
|
|
ClusterConfiguration: kubeadmapi.ClusterConfiguration{
|
|
KubernetesVersion: cpVersion,
|
|
Networking: kubeadmapi.Networking{ServiceSubnet: "10.96.0.0/12", DNSDomain: "cluster.local"},
|
|
},
|
|
},
|
|
caKeyPresent: false,
|
|
expectedArgFunc: func(tmpdir string) []string {
|
|
return []string{
|
|
"kube-controller-manager",
|
|
"--bind-address=127.0.0.1",
|
|
"--leader-elect=true",
|
|
"--kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--root-ca-file=" + tmpdir + "/ca.crt",
|
|
"--service-account-private-key-file=" + tmpdir + "/sa.key",
|
|
"--cluster-signing-cert-file=",
|
|
"--cluster-signing-key-file=",
|
|
"--use-service-account-credentials=true",
|
|
"--controllers=*,bootstrapsigner,tokencleaner",
|
|
"--authentication-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--authorization-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--client-ca-file=" + tmpdir + "/ca.crt",
|
|
"--requestheader-client-ca-file=" + tmpdir + "/front-proxy-ca.crt",
|
|
}
|
|
},
|
|
},
|
|
{
|
|
name: "caKeyPresent true for " + cpVersion,
|
|
cfg: &kubeadmapi.InitConfiguration{
|
|
LocalAPIEndpoint: kubeadmapi.APIEndpoint{AdvertiseAddress: "1.2.3.4"},
|
|
ClusterConfiguration: kubeadmapi.ClusterConfiguration{
|
|
KubernetesVersion: cpVersion,
|
|
Networking: kubeadmapi.Networking{ServiceSubnet: "10.96.0.0/12", DNSDomain: "cluster.local"},
|
|
},
|
|
},
|
|
caKeyPresent: true,
|
|
expectedArgFunc: func(tmpdir string) []string {
|
|
return []string{
|
|
"kube-controller-manager",
|
|
"--bind-address=127.0.0.1",
|
|
"--leader-elect=true",
|
|
"--kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--root-ca-file=" + tmpdir + "/ca.crt",
|
|
"--service-account-private-key-file=" + tmpdir + "/sa.key",
|
|
"--cluster-signing-cert-file=" + tmpdir + "/ca.crt",
|
|
"--cluster-signing-key-file=" + tmpdir + "/ca.key",
|
|
"--use-service-account-credentials=true",
|
|
"--controllers=*,bootstrapsigner,tokencleaner",
|
|
"--authentication-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--authorization-kubeconfig=" + kubeadmconstants.KubernetesDir + "/controller-manager.conf",
|
|
"--client-ca-file=" + tmpdir + "/ca.crt",
|
|
"--requestheader-client-ca-file=" + tmpdir + "/front-proxy-ca.crt",
|
|
}
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
// Create temp folder for the test case
|
|
tmpdir := testutil.SetupTempDir(t)
|
|
defer os.RemoveAll(tmpdir)
|
|
test.cfg.CertificatesDir = tmpdir
|
|
|
|
if err := certs.CreatePKIAssets(test.cfg); err != nil {
|
|
t.Errorf("failed creating pki assets: %v", err)
|
|
}
|
|
|
|
// delete ca.key and front-proxy-ca.key if test.caKeyPresent is false
|
|
if !test.caKeyPresent {
|
|
if err := os.Remove(filepath.Join(test.cfg.CertificatesDir, kubeadmconstants.CAKeyName)); err != nil {
|
|
t.Errorf("failed removing %s: %v", kubeadmconstants.CAKeyName, err)
|
|
}
|
|
if err := os.Remove(filepath.Join(test.cfg.CertificatesDir, kubeadmconstants.FrontProxyCAKeyName)); err != nil {
|
|
t.Errorf("failed removing %s: %v", kubeadmconstants.FrontProxyCAKeyName, err)
|
|
}
|
|
}
|
|
|
|
actual := getControllerManagerCommand(&test.cfg.ClusterConfiguration, version.MustParseSemantic(test.cfg.KubernetesVersion))
|
|
expected := test.expectedArgFunc(tmpdir)
|
|
sort.Strings(actual)
|
|
sort.Strings(expected)
|
|
if !reflect.DeepEqual(actual, expected) {
|
|
errorDiffArguments(t, test.name, actual, expected)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGetSchedulerCommand(t *testing.T) {
|
|
var tests = []struct {
|
|
name string
|
|
cfg *kubeadmapi.ClusterConfiguration
|
|
expected []string
|
|
}{
|
|
{
|
|
name: "scheduler defaults",
|
|
cfg: &kubeadmapi.ClusterConfiguration{},
|
|
expected: []string{
|
|
"kube-scheduler",
|
|
"--bind-address=127.0.0.1",
|
|
"--leader-elect=true",
|
|
"--kubeconfig=" + kubeadmconstants.KubernetesDir + "/scheduler.conf",
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, rt := range tests {
|
|
t.Run(rt.name, func(t *testing.T) {
|
|
actual := getSchedulerCommand(rt.cfg)
|
|
sort.Strings(actual)
|
|
sort.Strings(rt.expected)
|
|
if !reflect.DeepEqual(actual, rt.expected) {
|
|
errorDiffArguments(t, rt.name, actual, rt.expected)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestGetAuthzModes(t *testing.T) {
|
|
var tests = []struct {
|
|
name string
|
|
authMode []string
|
|
expected string
|
|
}{
|
|
{
|
|
name: "default if empty",
|
|
authMode: []string{},
|
|
expected: "Node,RBAC",
|
|
},
|
|
{
|
|
name: "add missing Node",
|
|
authMode: []string{authzmodes.ModeRBAC},
|
|
expected: "Node,RBAC",
|
|
},
|
|
{
|
|
name: "add missing RBAC",
|
|
authMode: []string{authzmodes.ModeNode},
|
|
expected: "Node,RBAC",
|
|
},
|
|
{
|
|
name: "add defaults to ABAC",
|
|
authMode: []string{authzmodes.ModeABAC},
|
|
expected: "Node,RBAC,ABAC",
|
|
},
|
|
{
|
|
name: "add defaults to RBAC+Webhook",
|
|
authMode: []string{authzmodes.ModeRBAC, authzmodes.ModeWebhook},
|
|
expected: "Node,RBAC,Webhook",
|
|
},
|
|
{
|
|
name: "add default to Webhook",
|
|
authMode: []string{authzmodes.ModeWebhook},
|
|
expected: "Node,RBAC,Webhook",
|
|
},
|
|
{
|
|
name: "AlwaysAllow ignored",
|
|
authMode: []string{authzmodes.ModeAlwaysAllow},
|
|
expected: "Node,RBAC",
|
|
},
|
|
{
|
|
name: "AlwaysDeny ignored",
|
|
authMode: []string{authzmodes.ModeAlwaysDeny},
|
|
expected: "Node,RBAC",
|
|
},
|
|
{
|
|
name: "Unspecified ignored",
|
|
authMode: []string{"FooAuthzMode"},
|
|
expected: "Node,RBAC",
|
|
},
|
|
{
|
|
name: "Multiple ignored",
|
|
authMode: []string{authzmodes.ModeAlwaysAllow, authzmodes.ModeAlwaysDeny, "foo"},
|
|
expected: "Node,RBAC",
|
|
},
|
|
{
|
|
name: "all",
|
|
authMode: []string{authzmodes.ModeNode, authzmodes.ModeRBAC, authzmodes.ModeWebhook, authzmodes.ModeABAC},
|
|
expected: "Node,RBAC,ABAC,Webhook",
|
|
},
|
|
}
|
|
|
|
for _, rt := range tests {
|
|
t.Run(rt.name, func(t *testing.T) {
|
|
actual := getAuthzModes(strings.Join(rt.authMode, ","))
|
|
if actual != rt.expected {
|
|
t.Errorf("failed getAuthzParameters:\nexpected:\n%v\nsaw:\n%v", rt.expected, actual)
|
|
}
|
|
})
|
|
}
|
|
}
|