kubeadm: remove arch suffix from control plane images

This change removes arch suffixes from control plane images (etcd,
kube-apiserver, kube-scheduler, kube-proxy, etc.). These are not needed, as
almost all control plane images have a fat manifest now.

We have arch suffixes only for kube-dns images now.

Signed-off-by: Rostislav M. Georgiev <rostislavg@vmware.com>

cmd/kubeadm/app/images/images.go

@@ -43,7 +43,7 @@ func GetKubeControlPlaneImage(image string, cfg *kubeadmapi.ClusterConfiguration
 	}
 	repoPrefix := cfg.GetControlPlaneImageRepository()
 	kubernetesImageTag := kubeadmutil.KubernetesVersionToImageTag(cfg.KubernetesVersion)
-	return GetGenericArchImage(repoPrefix, image, kubernetesImageTag)
+	return GetGenericImage(repoPrefix, image, kubernetesImageTag)
 }
 
 // GetEtcdImage generates and returns the image for etcd or returns cfg.Etcd.Local.Image if specified
@@ -56,7 +56,7 @@ func GetEtcdImage(cfg *kubeadmapi.ClusterConfiguration) string {
 	if err == nil {
 		etcdImageTag = etcdImageVersion.String()
 	}
-	return GetGenericArchImage(cfg.ImageRepository, constants.Etcd, etcdImageTag)
+	return GetGenericImage(cfg.ImageRepository, constants.Etcd, etcdImageTag)
 }
 
 // GetAllImages returns a list of container images kubeadm expects to use on a control plane node

cmd/kubeadm/app/images/images_test.go

@@ -59,7 +59,7 @@ func TestGetKubeControlPlaneImage(t *testing.T) {
 		},
 		{
 			image:    constants.KubeAPIServer,
-			expected: GetGenericArchImage(gcrPrefix, "kube-apiserver", expected),
+			expected: GetGenericImage(gcrPrefix, "kube-apiserver", expected),
 			cfg: &kubeadmapi.ClusterConfiguration{
 				ImageRepository:   gcrPrefix,
 				KubernetesVersion: testversion,
@@ -67,7 +67,7 @@ func TestGetKubeControlPlaneImage(t *testing.T) {
 		},
 		{
 			image:    constants.KubeControllerManager,
-			expected: GetGenericArchImage(gcrPrefix, "kube-controller-manager", expected),
+			expected: GetGenericImage(gcrPrefix, "kube-controller-manager", expected),
 			cfg: &kubeadmapi.ClusterConfiguration{
 				ImageRepository:   gcrPrefix,
 				KubernetesVersion: testversion,
@@ -75,7 +75,7 @@ func TestGetKubeControlPlaneImage(t *testing.T) {
 		},
 		{
 			image:    constants.KubeScheduler,
-			expected: GetGenericArchImage(gcrPrefix, "kube-scheduler", expected),
+			expected: GetGenericImage(gcrPrefix, "kube-scheduler", expected),
 			cfg: &kubeadmapi.ClusterConfiguration{
 				ImageRepository:   gcrPrefix,
 				KubernetesVersion: testversion,
@@ -110,7 +110,7 @@ func TestGetEtcdImage(t *testing.T) {
 			},
 		},
 		{
-			expected: GetGenericArchImage(gcrPrefix, "etcd", constants.DefaultEtcdVersion),
+			expected: GetGenericImage(gcrPrefix, "etcd", constants.DefaultEtcdVersion),
 			cfg: &kubeadmapi.ClusterConfiguration{
 				ImageRepository:   gcrPrefix,
 				KubernetesVersion: testversion,

cmd/kubeadm/app/phases/addons/proxy/manifests.go

@@ -108,7 +108,5 @@ spec:
       - key: CriticalAddonsOnly
         operator: Exists
       - operator: Exists
-      nodeSelector:
-        beta.kubernetes.io/arch: {{ .Arch }}
 `
 )

cmd/kubeadm/app/phases/addons/proxy/proxy.go

@@ -19,7 +19,6 @@ package proxy
 import (
 	"bytes"
 	"fmt"
-	"runtime"
 
 	apps "k8s.io/api/apps/v1"
 	"k8s.io/api/core/v1"
@@ -75,9 +74,8 @@ func EnsureProxyAddon(cfg *kubeadmapi.InitConfiguration, client clientset.Interf
 	if err != nil {
 		return fmt.Errorf("error when parsing kube-proxy configmap template: %v", err)
 	}
-	proxyDaemonSetBytes, err = kubeadmutil.ParseTemplate(KubeProxyDaemonSet19, struct{ Image, Arch string }{
+	proxyDaemonSetBytes, err = kubeadmutil.ParseTemplate(KubeProxyDaemonSet19, struct{ Image string }{
 		Image: images.GetKubeControlPlaneImage(constants.KubeProxy, &cfg.ClusterConfiguration),
-		Arch:  runtime.GOARCH,
 	})
 	if err != nil {
 		return fmt.Errorf("error when parsing kube-proxy daemonset template: %v", err)

cmd/kubeadm/app/phases/addons/proxy/proxy_test.go

@@ -108,9 +108,8 @@ func TestCompileManifests(t *testing.T) {
 		},
 		{
 			manifest: KubeProxyDaemonSet19,
-			data: struct{ Image, Arch string }{
+			data: struct{ Image string }{
 				Image: "foo",
-				Arch:  "foo",
 			},
 			expected: true,
 		},