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minikube
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remove manual verifying checksum since it is already handeled by go-getter lib

pull/21605/head
Medya Ghazizadeh 2025-09-24 15:26:10 -07:00
parent b4d51e9b4d
commit e00f07219e
2 changed files with 25 additions and 58 deletions
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8
pkg/minikube/download/download_test.go
View File

@ -97,7 +97,7 @@ func testPreloadDownloadPreventsMultipleDownload(t *testing.T) {
return os.Stat(f.Name())
}
checkPreloadExists = func(_, _, _ string, _ ...bool) bool { return true }
getChecksum = func(_, _ string) ([]byte, error) { return []byte("check"), nil }
getChecksumGCS = func(_, _ string) ([]byte, error) { return []byte("check"), nil }
ensureChecksumValid = func(_, _, _ string, _ []byte) error { return nil }
var group sync.WaitGroup
@ -125,7 +125,7 @@ func testPreloadNotExists(t *testing.T) {
checkCache = func(_ string) (fs.FileInfo, error) { return nil, fmt.Errorf("cache not found") }
checkPreloadExists = func(_, _, _ string, _ ...bool) bool { return false }
getChecksum = func(_, _ string) ([]byte, error) { return []byte("check"), nil }
getChecksumGCS = func(_, _ string) ([]byte, error) { return []byte("check"), nil }
ensureChecksumValid = func(_, _, _ string, _ []byte) error { return nil }
err := Preload(constants.DefaultKubernetesVersion, constants.Docker, "docker")
@ -144,7 +144,7 @@ func testPreloadChecksumMismatch(t *testing.T) {
checkCache = func(_ string) (fs.FileInfo, error) { return nil, fmt.Errorf("cache not found") }
checkPreloadExists = func(_, _, _ string, _ ...bool) bool { return true }
getChecksum = func(_, _ string) ([]byte, error) { return []byte("check"), nil }
getChecksumGCS = func(_, _ string) ([]byte, error) { return []byte("check"), nil }
ensureChecksumValid = func(_, _, _ string, _ []byte) error {
return fmt.Errorf("checksum mismatch")
}
@ -256,7 +256,7 @@ func testPreloadWithCachedSizeZero(t *testing.T) {
checkCache = func(_ string) (fs.FileInfo, error) { return os.Stat(f.Name()) }
checkPreloadExists = func(_, _, _ string, _ ...bool) bool { return true }
getChecksum = func(_, _ string) ([]byte, error) { return []byte("check"), nil }
getChecksumGCS = func(_, _ string) ([]byte, error) { return []byte("check"), nil }
ensureChecksumValid = func(_, _, _ string, _ []byte) error { return nil }
if err := Preload(constants.DefaultKubernetesVersion, constants.Docker, "docker"); err != nil {

75
pkg/minikube/download/preload.go
View File

@ -18,7 +18,6 @@ package download
import (
"context"
"crypto/md5"
"encoding/hex"
"fmt"
"net/http"
@ -34,6 +33,7 @@ import (
"github.com/pkg/errors"
"github.com/spf13/viper"
"k8s.io/klog/v2"
"k8s.io/minikube/pkg/minikube/download/gh"
"k8s.io/minikube/pkg/minikube/driver"
"k8s.io/minikube/pkg/minikube/localpath"
"k8s.io/minikube/pkg/minikube/out"
@ -46,9 +46,9 @@ const (
// NOTE: You may need to bump this version up when upgrading auxiliary docker images
PreloadVersion = "v18"
// PreloadBucket is the name of the GCS bucket where preloaded volume tarballs exist
PreloadBucket = "minikube-preloaded-volume-tarballs"
// PreloadGitHubRepo is the GitHub repo that hosts the preload artifacts
PreloadGitHubRepo = "kubernetes/minikube-preloads"
PreloadBucket = "minikube-preloaded-volume-tarballs"
PreloadGitHubOrg = "kubernetes-sigs"
PreloadGitHubRepo = "minikube-preloads"
)
type preloadSource string
@ -110,7 +110,7 @@ func remoteTarballURLGCS(k8sVersion, containerRuntime string) string {
// remoteTarballURLGitHub returns the URL for the remote tarball hosted on GitHub releases
func remoteTarballURLGitHub(k8sVersion, containerRuntime string) string {
return fmt.Sprintf("https://github.com/%s/releases/download/%s/%s", PreloadGitHubRepo, PreloadVersion, TarballName(k8sVersion, containerRuntime))
return fmt.Sprintf("https://github.com/%s/%s/releases/download/%s/%s", PreloadGitHubOrg, PreloadGitHubRepo, PreloadVersion, TarballName(k8sVersion, containerRuntime))
}
func remoteTarballURL(k8sVersion, containerRuntime string, source preloadSource) string {
@ -257,9 +257,16 @@ func Preload(k8sVersion, containerRuntime, driverName string) error {
source = state.source
}
url := remoteTarballURL(k8sVersion, containerRuntime, source)
checksum, err := getChecksum(k8sVersion, containerRuntime)
var checksum []byte
var chksErr error
if source == preloadSourceGCS {
checksum, chksErr = getChecksumGCS(k8sVersion, containerRuntime)
}
if source == preloadSourceGitHub {
checksum, chksErr = getChecksumGithub(k8sVersion, containerRuntime)
}
var realPath string
if err != nil {
if chksErr != nil {
klog.Warningf("No checksum for preloaded tarball for k8s version %s: %v", k8sVersion, err)
realPath = targetPath
tmp, err := os.CreateTemp(targetDir(), TarballName(k8sVersion, containerRuntime)+".*")
@ -276,10 +283,6 @@ func Preload(k8sVersion, containerRuntime, driverName string) error {
return errors.Wrapf(err, "download failed: %s", url)
}
if err := ensureChecksumValid(k8sVersion, containerRuntime, targetPath, checksum); err != nil {
return err
}
if realPath != "" {
klog.Infof("renaming tempfile to %s ...", TarballName(k8sVersion, containerRuntime))
err := os.Rename(targetPath, realPath)
@ -306,9 +309,9 @@ func getStorageAttrs(name string) (*storage.ObjectAttrs, error) {
return attrs, nil
}
// getChecksum returns the MD5 checksum of the preload tarball
var getChecksum = func(k8sVersion, containerRuntime string) ([]byte, error) {
klog.Infof("getting checksum for %s ...", TarballName(k8sVersion, containerRuntime))
// getChecksumGCS returns the MD5 checksum of the preload tarball
var getChecksumGCS = func(k8sVersion, containerRuntime string) ([]byte, error) {
klog.Infof("getting checksum for %s from gcs...", TarballName(k8sVersion, containerRuntime))
filename := fmt.Sprintf("%s/%s/%s", PreloadVersion, k8sVersion, TarballName(k8sVersion, containerRuntime))
attrs, err := getStorageAttrs(filename)
if err != nil {
@ -317,46 +320,10 @@ var getChecksum = func(k8sVersion, containerRuntime string) ([]byte, error) {
return attrs.MD5, nil
}
// saveChecksumFile saves the checksum to a local file for later verification
func saveChecksumFile(k8sVersion, containerRuntime string, checksum []byte) error {
klog.Infof("saving checksum for %s ...", TarballName(k8sVersion, containerRuntime))
return os.WriteFile(PreloadChecksumPath(k8sVersion, containerRuntime), checksum, 0o644)
}
// verifyChecksum returns true if the checksum of the local binary matches
// the checksum of the remote binary
func verifyChecksum(k8sVersion, containerRuntime, binaryPath string) error {
klog.Infof("verifying checksum of %s ...", binaryPath)
// get md5 checksum of tarball path
contents, err := os.ReadFile(binaryPath)
if err != nil {
return errors.Wrap(err, "reading tarball")
}
checksum := md5.Sum(contents)
remoteChecksum, err := os.ReadFile(PreloadChecksumPath(k8sVersion, containerRuntime))
if err != nil {
return errors.Wrap(err, "reading checksum file")
}
// create a slice of checksum, which is [16]byte
if string(remoteChecksum) != string(checksum[:]) {
return fmt.Errorf("checksum of %s does not match remote checksum (%s != %s)", binaryPath, string(remoteChecksum), string(checksum[:]))
}
return nil
}
// ensureChecksumValid saves and verifies local binary checksum matches remote binary checksum
var ensureChecksumValid = func(k8sVersion, containerRuntime, targetPath string, checksum []byte) error {
if err := saveChecksumFile(k8sVersion, containerRuntime, checksum); err != nil {
return errors.Wrap(err, "saving checksum file")
}
if err := verifyChecksum(k8sVersion, containerRuntime, targetPath); err != nil {
return errors.Wrap(err, "verify")
}
return nil
var getChecksumGithub = func(k8sVersion, containerRuntime string) ([]byte, error) {
klog.Infof("getting checksum for %s from github...", TarballName(k8sVersion, containerRuntime))
gh.ReleaseAssets(PreloadGitHubRepo, PreloadGitHubRepo, PreloadVersion)
return nil, nil
}
// CleanUpOlderPreloads deletes preload files belonging to older minikube versions