Bump minimum kubeadm supported version to v1.12

cmd/kubeadm/app/cmd/config_test.go

@@ -71,13 +71,13 @@ func TestImagesListRunWithCustomConfigPath(t *testing.T) {
 			name:               "set k8s version",
 			expectedImageCount: defaultNumberOfImages,
 			expectedImageSubstrings: []string{
-				":v1.12.1",
+				constants.CurrentKubernetesVersion.String(),
 			},
-			configContents: []byte(dedent.Dedent(`
+			configContents: []byte(dedent.Dedent(fmt.Sprintf(`
 				apiVersion: kubeadm.k8s.io/v1beta1
 				kind: ClusterConfiguration
-				kubernetesVersion: v1.12.1
-			`)),
+				kubernetesVersion: %s
+			`, constants.CurrentKubernetesVersion))),
 		},
 		{
 			name:               "use coredns",

cmd/kubeadm/app/componentconfigs/config_test.go

@@ -40,7 +40,7 @@ kind: KubeletConfiguration
 }
 
 func TestGetFromConfigMap(t *testing.T) {
-	k8sVersion := version.MustParseGeneric("v1.12.0")
+	k8sVersion := version.MustParseGeneric(kubeadmconstants.CurrentKubernetesVersion.String())
 
 	var tests = []struct {
 		name          string

cmd/kubeadm/app/constants/constants.go

@@ -387,18 +387,16 @@ var (
 	ControlPlaneComponents = []string{KubeAPIServer, KubeControllerManager, KubeScheduler}
 
 	// MinimumControlPlaneVersion specifies the minimum control plane version kubeadm can deploy
-	MinimumControlPlaneVersion = version.MustParseSemantic("v1.12.0")
+	MinimumControlPlaneVersion = version.MustParseSemantic("v1.13.0")
 
 	// MinimumKubeletVersion specifies the minimum version of kubelet which kubeadm supports
-	MinimumKubeletVersion = version.MustParseSemantic("v1.12.0")
+	MinimumKubeletVersion = version.MustParseSemantic("v1.13.0")
 
 	// CurrentKubernetesVersion specifies current Kubernetes version supported by kubeadm
-	CurrentKubernetesVersion = version.MustParseSemantic("v1.13.0")
+	CurrentKubernetesVersion = version.MustParseSemantic("v1.14.0")
 
 	// SupportedEtcdVersion lists officially supported etcd versions with corresponding Kubernetes releases
 	SupportedEtcdVersion = map[uint8]string{
-		10: "3.1.12",
-		11: "3.2.18",
 		12: "3.2.24",
 		13: "3.2.24",
 		14: "3.3.10",

cmd/kubeadm/app/constants/constants_test.go

@@ -160,16 +160,6 @@ func TestEtcdSupportedVersion(t *testing.T) {
 			expectedError:     errors.New("Unsupported or unknown Kubernetes version(1.99.0)"),
 		},
 		{
-			kubernetesVersion: "1.10.2",
-			expectedVersion:   version.MustParseSemantic("3.1.12"),
-			expectedError:     nil,
-		},
-		{
-			kubernetesVersion: "1.11.0",
-			expectedVersion:   version.MustParseSemantic("3.2.18"),
-			expectedError:     nil,
-		},
-		{
 			kubernetesVersion: "1.12.1",
 			expectedVersion:   version.MustParseSemantic("3.2.24"),
 			expectedError:     nil,

cmd/kubeadm/app/phases/upgrade/policy_test.go

@@ -69,14 +69,14 @@ func TestEnforceVersionPolicies(t *testing.T) {
 			newK8sVersion: constants.MinimumControlPlaneVersion.WithPatch(3).String(),
 		},
 		{
-			name: "new version must be higher than v1.10.0",
+			name: "new version must be higher than v1.12.0",
 			vg: &fakeVersionGetter{
-				clusterVersion: "v1.10.3",
-				kubeletVersion: "v1.10.3",
-				kubeadmVersion: "v1.10.3",
+				clusterVersion: "v1.12.3",
+				kubeletVersion: "v1.12.3",
+				kubeadmVersion: "v1.12.3",
 			},
-			newK8sVersion:         "v1.9.10",
-			expectedMandatoryErrs: 1, // version must be higher than v1.10.0
+			newK8sVersion:         "v1.11.10",
+			expectedMandatoryErrs: 1, // version must be higher than v1.12.0
 			expectedSkippableErrs: 1, // can't upgrade old k8s with newer kubeadm
 		},
 		{
@@ -93,9 +93,9 @@ func TestEnforceVersionPolicies(t *testing.T) {
 		{
 			name: "downgrading two minor versions in one go is not supported",
 			vg: &fakeVersionGetter{
-				clusterVersion: "v1.14.3",
-				kubeletVersion: "v1.14.3",
-				kubeadmVersion: "v1.14.0",
+				clusterVersion: "v1.15.3",
+				kubeletVersion: "v1.15.3",
+				kubeadmVersion: "v1.15.0",
 			},
 			newK8sVersion:         constants.MinimumControlPlaneVersion.WithPatch(3).String(),
 			expectedMandatoryErrs: 1, // can't downgrade two minor versions
@@ -125,7 +125,7 @@ func TestEnforceVersionPolicies(t *testing.T) {
 			name: "the maximum skew between the cluster version and the kubelet versions should be one minor version. This may be forced through though.",
 			vg: &fakeVersionGetter{
 				clusterVersion: constants.MinimumControlPlaneVersion.WithPatch(3).String(),
-				kubeletVersion: "v1.11.8",
+				kubeletVersion: "v1.12.8",
 				kubeadmVersion: constants.CurrentKubernetesVersion.String(),
 			},
 			newK8sVersion:         constants.CurrentKubernetesVersion.String(),

cmd/kubeadm/app/phases/uploadconfig/uploadconfig_test.go

@@ -69,7 +69,7 @@ func TestUploadConfiguration(t *testing.T) {
 					AdvertiseAddress: "1.2.3.4",
 				},
 				ClusterConfiguration: kubeadmapiv1beta1.ClusterConfiguration{
-					KubernetesVersion: "v1.12.10",
+					KubernetesVersion: kubeadmconstants.MinimumControlPlaneVersion.WithPatch(10).String(),
 				},
 				BootstrapTokens: []kubeadmapiv1beta1.BootstrapToken{
 					{