convert base image to a const

pkg/drivers/kic/kic.go

@@ -38,6 +38,9 @@ const DefaultPodCIDR = "10.244.0.0/16"
 // DefaultBindIPV4 is The default ip the container will bind to.
 const DefaultBindIPV4 = "127.0.0.1"
 
+// BaseImage is the base image is used to spin up kic containers
+const BaseImage = "gcr.io/k8s-minikube/kicbase:v0.0.1@sha256:c4ad2938877d2ae0d5b7248a5e7182ff58c0603165c3bedfe9d503e2d380a0db"
+
 // Driver represents a kic driver https://minikube.sigs.k8s.io/docs/reference/drivers/kic/
 type Driver struct {
 	*drivers.BaseDriver
@@ -258,8 +261,3 @@ func (d *Driver) nodeID(nameOrID string) (string, error) {
 	}
 	return string(id), err
 }
-
-// BaseImage returns the image used to spin up containers. in the future might pin down nodes per version
-func BaseImage() (string, error) {
-	return "gcr.io/k8s-minikube/kicbase@sha256:c4ad2938877d2ae0d5b7248a5e7182ff58c0603165c3bedfe9d503e2d380a0db", nil
-}

pkg/minikube/registry/drvs/docker/docker.go

@@ -21,7 +21,6 @@ import (
 	"os/exec"
 
 	"github.com/docker/machine/libmachine/drivers"
-	"github.com/golang/glog"
 	"k8s.io/minikube/pkg/drivers/kic"
 	"k8s.io/minikube/pkg/drivers/kic/oci"
 	"k8s.io/minikube/pkg/minikube/config"
@@ -43,14 +42,10 @@ func init() {
 }
 
 func configure(mc config.MachineConfig) interface{} {
-	img, err := kic.BaseImage()
-	if err != nil {
-		glog.Errorf("err to getting kic image for %s: imgesha:%s", img, mc.KubernetesConfig.KubernetesVersion)
-	}
 	return kic.NewDriver(kic.Config{
 		MachineName:  mc.Name,
 		StorePath:    localpath.MiniPath(),
-		ImageDigest:  img,
+		ImageDigest:  kic.BaseImage,
 		CPU:          mc.CPUs,
 		Memory:       mc.Memory,
 		HostBindPort: mc.KubernetesConfig.HostBindPort,