Allow running amd64 binary on M1

cmd/minikube/cmd/root.go

@@ -25,9 +25,6 @@ import (
 	"strings"
 	"time"
 
-	"k8s.io/minikube/pkg/minikube/notify"
-	"k8s.io/minikube/pkg/version"
-
 	"github.com/spf13/cobra"
 	"github.com/spf13/pflag"
 	"github.com/spf13/viper"
@@ -41,9 +38,11 @@ import (
 	"k8s.io/minikube/pkg/minikube/detect"
 	"k8s.io/minikube/pkg/minikube/exit"
 	"k8s.io/minikube/pkg/minikube/localpath"
+	"k8s.io/minikube/pkg/minikube/notify"
 	"k8s.io/minikube/pkg/minikube/out"
 	"k8s.io/minikube/pkg/minikube/reason"
 	"k8s.io/minikube/pkg/minikube/translate"
+	"k8s.io/minikube/pkg/version"
 )
 
 var dirs = [...]string{
@@ -96,7 +95,7 @@ func Execute() {
 	}
 
 	if runtime.GOOS == "darwin" && detect.IsAmd64M1Emulation() {
-		exit.Message(reason.WrongBinaryM1, "You are trying to run amd64 binary on M1 system. Please use darwin/arm64 binary instead (Download at {{.url}}.)",
+		out.Infof("You are trying to run amd64 binary on M1 system. Please consider running darwin/arm64 binary instead (Download at {{.url}}.)",
 			out.V{"url": notify.DownloadURL(version.GetVersion(), "darwin", "arm64")})
 	}
 

pkg/minikube/detect/detect.go

@@ -77,6 +77,15 @@ func IsAmd64M1Emulation() bool {
 	return runtime.GOARCH == "amd64" && strings.HasPrefix(cpuid.CPU.BrandName, "VirtualApple")
 }
 
+// EffectiveArch return architecture to use in minikube VM/container
+// may differ from host arch
+func EffectiveArch() string {
+	if IsAmd64M1Emulation() {
+		return "arm64"
+	}
+	return runtime.GOARCH
+}
+
 // MinikubeInstalledViaSnap returns true if the minikube binary path includes "snap".
 func MinikubeInstalledViaSnap() bool {
 	ex, err := os.Executable()

pkg/minikube/download/binary.go

@@ -22,6 +22,8 @@ import (
 	"path"
 	"runtime"
 
+	"k8s.io/minikube/pkg/minikube/detect"
+
 	"github.com/blang/semver"
 	"github.com/pkg/errors"
 	"k8s.io/klog/v2"
@@ -70,7 +72,7 @@ func Binary(binary, version, osName, archName string) (string, error) {
 		return "", errors.Wrapf(err, "download failed: %s", url)
 	}
 
-	if osName == runtime.GOOS && archName == runtime.GOARCH {
+	if osName == runtime.GOOS && archName == detect.EffectiveArch() {
 		if err = os.Chmod(targetFilepath, 0755); err != nil {
 			return "", errors.Wrapf(err, "chmod +x %s", targetFilepath)
 		}

pkg/minikube/download/preload.go

@@ -25,10 +25,10 @@ import (
 	"net/http"
 	"os"
 	"path/filepath"
-	"runtime"
 
 	"cloud.google.com/go/storage"
 	"google.golang.org/api/option"
+	"k8s.io/minikube/pkg/minikube/detect"
 
 	"github.com/pkg/errors"
 	"github.com/spf13/viper"
@@ -70,7 +70,8 @@ func TarballName(k8sVersion, containerRuntime string) string {
 	} else {
 		storageDriver = "overlay2"
 	}
-	return fmt.Sprintf("preloaded-images-k8s-%s-%s-%s-%s-%s.tar.lz4", PreloadVersion, k8sVersion, containerRuntime, storageDriver, runtime.GOARCH)
+	arch := detect.EffectiveArch()
+	return fmt.Sprintf("preloaded-images-k8s-%s-%s-%s-%s-%s.tar.lz4", PreloadVersion, k8sVersion, containerRuntime, storageDriver, arch)
 }
 
 // returns the name of the checksum file

pkg/minikube/machine/cache_binaries.go

@@ -18,14 +18,14 @@ package machine
 
 import (
 	"path"
-	"runtime"
 
 	"github.com/pkg/errors"
 	"golang.org/x/sync/errgroup"
 	"k8s.io/klog/v2"
 	"k8s.io/minikube/pkg/minikube/assets"
 	"k8s.io/minikube/pkg/minikube/bootstrapper"
 	"k8s.io/minikube/pkg/minikube/command"
+	"k8s.io/minikube/pkg/minikube/detect"
 	"k8s.io/minikube/pkg/minikube/download"
 )
 
@@ -53,7 +53,7 @@ func CacheBinariesForBootstrapper(version string, clusterBootstrapper string, ex
 		}
 		bin := bin // https://golang.org/doc/faq#closures_and_goroutines
 		g.Go(func() error {
-			if _, err := download.Binary(bin, version, "linux", runtime.GOARCH); err != nil {
+			if _, err := download.Binary(bin, version, "linux", detect.EffectiveArch()); err != nil {
 				return errors.Wrapf(err, "caching binary %s", bin)
 			}
 			return nil

pkg/minikube/node/cache.go

@@ -22,6 +22,8 @@ import (
 	"runtime"
 	"strings"
 
+	"k8s.io/minikube/pkg/minikube/detect"
+
 	"github.com/pkg/errors"
 	"github.com/spf13/viper"
 	"golang.org/x/sync/errgroup"
@@ -97,7 +99,7 @@ func CacheKubectlBinary(k8sVersion string) (string, error) {
 		binary = "kubectl.exe"
 	}
 
-	return download.Binary(binary, k8sVersion, runtime.GOOS, runtime.GOARCH)
+	return download.Binary(binary, k8sVersion, runtime.GOOS, detect.EffectiveArch())
 }
 
 // doCacheBinaries caches Kubernetes binaries in the foreground