/* Copyright 2017 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 etcd import ( "fmt" "os" "path/filepath" "reflect" "sort" "testing" kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm" kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants" etcdutil "k8s.io/kubernetes/cmd/kubeadm/app/util/etcd" testutil "k8s.io/kubernetes/cmd/kubeadm/test" ) func TestGetEtcdPodSpec(t *testing.T) { // Creates a ClusterConfiguration cfg := &kubeadmapi.ClusterConfiguration{ KubernetesVersion: "v1.7.0", Etcd: kubeadmapi.Etcd{ Local: &kubeadmapi.LocalEtcd{ DataDir: "/var/lib/etcd", }, }, } endpoint := &kubeadmapi.APIEndpoint{} // Executes GetEtcdPodSpec spec := GetEtcdPodSpec(cfg, endpoint, "", []etcdutil.Member{}) // Assert each specs refers to the right pod if spec.Spec.Containers[0].Name != kubeadmconstants.Etcd { t.Errorf("getKubeConfigSpecs spec for etcd contains pod %s, expects %s", spec.Spec.Containers[0].Name, kubeadmconstants.Etcd) } } func TestCreateLocalEtcdStaticPodManifestFile(t *testing.T) { // Create temp folder for the test case tmpdir := testutil.SetupTempDir(t) defer os.RemoveAll(tmpdir) var tests = []struct { cfg *kubeadmapi.ClusterConfiguration expectedError bool }{ { cfg: &kubeadmapi.ClusterConfiguration{ KubernetesVersion: "v1.7.0", Etcd: kubeadmapi.Etcd{ Local: &kubeadmapi.LocalEtcd{ DataDir: tmpdir + "/etcd", }, }, }, expectedError: false, }, { cfg: &kubeadmapi.ClusterConfiguration{ KubernetesVersion: "v1.7.0", Etcd: kubeadmapi.Etcd{ External: &kubeadmapi.ExternalEtcd{ Endpoints: []string{ "https://etcd-instance:2379", }, CAFile: "/etc/kubernetes/pki/etcd/ca.crt", CertFile: "/etc/kubernetes/pki/etcd/apiserver-etcd-client.crt", KeyFile: "/etc/kubernetes/pki/etcd/apiserver-etcd-client.key", }, }, }, expectedError: true, }, } for _, test := range tests { // Execute createStaticPodFunction manifestPath := filepath.Join(tmpdir, kubeadmconstants.ManifestsSubDirName) err := CreateLocalEtcdStaticPodManifestFile(manifestPath, "", test.cfg, &kubeadmapi.APIEndpoint{}) if !test.expectedError { if err != nil { t.Errorf("CreateLocalEtcdStaticPodManifestFile failed when not expected: %v", err) } // Assert expected files are there testutil.AssertFilesCount(t, manifestPath, 1) testutil.AssertFileExists(t, manifestPath, kubeadmconstants.Etcd+".yaml") } else { testutil.AssertError(t, err, "etcd static pod manifest cannot be generated for cluster using external etcd") } } } func TestGetEtcdCommand(t *testing.T) { var tests = []struct { name string advertiseAddress string nodeName string extraArgs map[string]string initialCluster []etcdutil.Member expected []string }{ { name: "Default args - with empty etcd initial cluster", advertiseAddress: "1.2.3.4", nodeName: "foo", expected: []string{ "etcd", "--name=foo", fmt.Sprintf("--listen-client-urls=https://127.0.0.1:%d,https://1.2.3.4:%d", kubeadmconstants.EtcdListenClientPort, kubeadmconstants.EtcdListenClientPort), fmt.Sprintf("--advertise-client-urls=https://1.2.3.4:%d", kubeadmconstants.EtcdListenClientPort), fmt.Sprintf("--listen-peer-urls=https://1.2.3.4:%d", kubeadmconstants.EtcdListenPeerPort), fmt.Sprintf("--initial-advertise-peer-urls=https://1.2.3.4:%d", kubeadmconstants.EtcdListenPeerPort), "--data-dir=/var/lib/etcd", "--cert-file=" + kubeadmconstants.EtcdServerCertName, "--key-file=" + kubeadmconstants.EtcdServerKeyName, "--trusted-ca-file=" + kubeadmconstants.EtcdCACertName, "--client-cert-auth=true", "--peer-cert-file=" + kubeadmconstants.EtcdPeerCertName, "--peer-key-file=" + kubeadmconstants.EtcdPeerKeyName, "--peer-trusted-ca-file=" + kubeadmconstants.EtcdCACertName, "--snapshot-count=10000", "--peer-client-cert-auth=true", fmt.Sprintf("--initial-cluster=foo=https://1.2.3.4:%d", kubeadmconstants.EtcdListenPeerPort), }, }, { name: "Default args - With an existing etcd cluster", advertiseAddress: "1.2.3.4", nodeName: "foo", initialCluster: []etcdutil.Member{ {Name: "foo", PeerURL: fmt.Sprintf("https://1.2.3.4:%d", kubeadmconstants.EtcdListenPeerPort)}, // NB. the joining etcd instance should be part of the initialCluster list {Name: "bar", PeerURL: fmt.Sprintf("https://5.6.7.8:%d", kubeadmconstants.EtcdListenPeerPort)}, }, expected: []string{ "etcd", "--name=foo", fmt.Sprintf("--listen-client-urls=https://127.0.0.1:%d,https://1.2.3.4:%d", kubeadmconstants.EtcdListenClientPort, kubeadmconstants.EtcdListenClientPort), fmt.Sprintf("--advertise-client-urls=https://1.2.3.4:%d", kubeadmconstants.EtcdListenClientPort), fmt.Sprintf("--listen-peer-urls=https://1.2.3.4:%d", kubeadmconstants.EtcdListenPeerPort), fmt.Sprintf("--initial-advertise-peer-urls=https://1.2.3.4:%d", kubeadmconstants.EtcdListenPeerPort), "--data-dir=/var/lib/etcd", "--cert-file=" + kubeadmconstants.EtcdServerCertName, "--key-file=" + kubeadmconstants.EtcdServerKeyName, "--trusted-ca-file=" + kubeadmconstants.EtcdCACertName, "--client-cert-auth=true", "--peer-cert-file=" + kubeadmconstants.EtcdPeerCertName, "--peer-key-file=" + kubeadmconstants.EtcdPeerKeyName, "--peer-trusted-ca-file=" + kubeadmconstants.EtcdCACertName, "--snapshot-count=10000", "--peer-client-cert-auth=true", "--initial-cluster-state=existing", fmt.Sprintf("--initial-cluster=foo=https://1.2.3.4:%d,bar=https://5.6.7.8:%d", kubeadmconstants.EtcdListenPeerPort, kubeadmconstants.EtcdListenPeerPort), }, }, { name: "Extra args", advertiseAddress: "1.2.3.4", nodeName: "bar", extraArgs: map[string]string{ "listen-client-urls": "https://10.0.1.10:2379", "advertise-client-urls": "https://10.0.1.10:2379", }, expected: []string{ "etcd", "--name=bar", "--listen-client-urls=https://10.0.1.10:2379", "--advertise-client-urls=https://10.0.1.10:2379", fmt.Sprintf("--listen-peer-urls=https://1.2.3.4:%d", kubeadmconstants.EtcdListenPeerPort), fmt.Sprintf("--initial-advertise-peer-urls=https://1.2.3.4:%d", kubeadmconstants.EtcdListenPeerPort), "--data-dir=/var/lib/etcd", "--cert-file=" + kubeadmconstants.EtcdServerCertName, "--key-file=" + kubeadmconstants.EtcdServerKeyName, "--trusted-ca-file=" + kubeadmconstants.EtcdCACertName, "--client-cert-auth=true", "--peer-cert-file=" + kubeadmconstants.EtcdPeerCertName, "--peer-key-file=" + kubeadmconstants.EtcdPeerKeyName, "--peer-trusted-ca-file=" + kubeadmconstants.EtcdCACertName, "--snapshot-count=10000", "--peer-client-cert-auth=true", fmt.Sprintf("--initial-cluster=bar=https://1.2.3.4:%d", kubeadmconstants.EtcdListenPeerPort), }, }, { name: "IPv6 advertise address", advertiseAddress: "2001:db8::3", nodeName: "foo", expected: []string{ "etcd", "--name=foo", fmt.Sprintf("--listen-client-urls=https://127.0.0.1:%d,https://[2001:db8::3]:%d", kubeadmconstants.EtcdListenClientPort, kubeadmconstants.EtcdListenClientPort), fmt.Sprintf("--advertise-client-urls=https://[2001:db8::3]:%d", kubeadmconstants.EtcdListenClientPort), fmt.Sprintf("--listen-peer-urls=https://[2001:db8::3]:%d", kubeadmconstants.EtcdListenPeerPort), fmt.Sprintf("--initial-advertise-peer-urls=https://[2001:db8::3]:%d", kubeadmconstants.EtcdListenPeerPort), "--data-dir=/var/lib/etcd", "--cert-file=" + kubeadmconstants.EtcdServerCertName, "--key-file=" + kubeadmconstants.EtcdServerKeyName, "--trusted-ca-file=" + kubeadmconstants.EtcdCACertName, "--client-cert-auth=true", "--peer-cert-file=" + kubeadmconstants.EtcdPeerCertName, "--peer-key-file=" + kubeadmconstants.EtcdPeerKeyName, "--peer-trusted-ca-file=" + kubeadmconstants.EtcdCACertName, "--snapshot-count=10000", "--peer-client-cert-auth=true", fmt.Sprintf("--initial-cluster=foo=https://[2001:db8::3]:%d", kubeadmconstants.EtcdListenPeerPort), }, }, } for _, rt := range tests { t.Run(rt.name, func(t *testing.T) { endpoint := &kubeadmapi.APIEndpoint{ AdvertiseAddress: rt.advertiseAddress, } cfg := &kubeadmapi.ClusterConfiguration{ Etcd: kubeadmapi.Etcd{ Local: &kubeadmapi.LocalEtcd{ DataDir: "/var/lib/etcd", ExtraArgs: rt.extraArgs, }, }, } actual := getEtcdCommand(cfg, endpoint, rt.nodeName, rt.initialCluster) sort.Strings(actual) sort.Strings(rt.expected) if !reflect.DeepEqual(actual, rt.expected) { t.Errorf("failed getEtcdCommand:\nexpected:\n%v\nsaw:\n%v", rt.expected, actual) } }) } }