Use etcd v3.5.0 for Kubernetes 1.22+

pkg/model/components/etcd.go

@@ -24,7 +24,7 @@ import (
 	"k8s.io/kops/upup/pkg/fi/loader"
 )
 
-const DefaultBackupImage = "k8s.gcr.io/etcdadm/etcd-backup:3.0.20210430"
+const DefaultBackupImage = "k8s.gcr.io/etcdadm/etcd-backup:3.0.20210707"
 
 // EtcdOptionsBuilder adds options for etcd to the model
 type EtcdOptionsBuilder struct {
@@ -35,8 +35,8 @@ var _ loader.OptionsBuilder = &EtcdOptionsBuilder{}
 
 const (
 	DefaultEtcd3Version_1_17 = "3.4.3"
-
 	DefaultEtcd3Version_1_19 = "3.4.13"
+	DefaultEtcd3Version_1_22 = "3.5.0"
 )
 
 // BuildOptions is responsible for filling in the defaults for the etcd cluster model
@@ -52,7 +52,9 @@ func (b *EtcdOptionsBuilder) BuildOptions(o interface{}) error {
 		// Ensure the version is set
 		if c.Version == "" {
 			// We run the k8s-recommended versions of etcd
-			if b.IsKubernetesGTE("1.19") {
+			if b.IsKubernetesGTE("1.22") {
+				c.Version = DefaultEtcd3Version_1_22
+			} else if b.IsKubernetesGTE("1.19") {
 				c.Version = DefaultEtcd3Version_1_19
 			} else {
 				c.Version = DefaultEtcd3Version_1_17

pkg/model/components/etcdmanager/model.go

@@ -183,7 +183,7 @@ metadata:
   namespace: kube-system
 spec:
   containers:
-  - image: k8s.gcr.io/etcdadm/etcd-manager:3.0.20210430
+  - image: k8s.gcr.io/etcdadm/etcd-manager:3.0.20210707
     name: etcd-manager
     resources:
       requests:

pkg/model/components/etcdmanager/options.go

@@ -67,7 +67,7 @@ func (b *EtcdManagerOptionsBuilder) BuildOptions(o interface{}) error {
 	return nil
 }
 
-var supportedEtcdVersions = []string{"3.1.12", "3.2.18", "3.2.24", "3.3.10", "3.3.13", "3.3.17", "3.4.3", "3.4.13"}
+var supportedEtcdVersions = []string{"3.1.12", "3.2.18", "3.2.24", "3.3.10", "3.3.13", "3.3.17", "3.4.3", "3.4.13", "3.5.0"}
 
 func etcdVersionIsSupported(version string) bool {
 	version = strings.TrimPrefix(version, "v")