251 lines
8.3 KiB
Go
251 lines
8.3 KiB
Go
//go:build integration
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// +build integration
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/*
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Copyright 2019 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package integration
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import (
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"bufio"
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"bytes"
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"context"
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"crypto/md5"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"strings"
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"testing"
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"k8s.io/minikube/pkg/minikube/bootstrapper/images"
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"k8s.io/minikube/pkg/minikube/constants"
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"k8s.io/minikube/pkg/minikube/download"
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"k8s.io/minikube/pkg/minikube/localpath"
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)
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// TestDownloadOnly makes sure the --download-only parameter in minikube start caches the appropriate images and tarballs.
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func TestDownloadOnly(t *testing.T) {
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// Stores the startup run result for later error messages
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var rrr *RunResult
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profile := UniqueProfileName("download-only")
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ctx, cancel := context.WithTimeout(context.Background(), Minutes(30))
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defer Cleanup(t, profile, cancel)
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containerRuntime := ContainerRuntime()
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versions := []string{
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constants.OldestKubernetesVersion,
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constants.DefaultKubernetesVersion,
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constants.NewestKubernetesVersion,
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}
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// Small optimization, don't run the exact same set of tests twice
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if constants.DefaultKubernetesVersion == constants.NewestKubernetesVersion {
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versions = versions[:len(versions)-1]
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}
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for _, v := range versions {
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t.Run(v, func(t *testing.T) {
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defer PostMortemLogs(t, profile)
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t.Run("json-events", func(t *testing.T) {
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// --force to avoid uid check
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args := append([]string{"start", "-o=json", "--download-only", "-p", profile, "--force", "--alsologtostderr", fmt.Sprintf("--kubernetes-version=%s", v), fmt.Sprintf("--container-runtime=%s", containerRuntime)}, StartArgs()...)
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rt, err := Run(t, exec.CommandContext(ctx, Target(), args...))
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if rrr == nil {
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// Preserve the initial run-result for debugging
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rrr = rt
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}
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if err != nil {
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t.Errorf("failed to download only. args: %q %v", args, err)
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}
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s := bufio.NewScanner(bytes.NewReader(rt.Stdout.Bytes()))
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for s.Scan() {
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var rtObj map[string]interface{}
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err := json.Unmarshal(s.Bytes(), &rtObj)
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if err != nil {
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t.Errorf("failed to parse output: %v", err)
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} else if step, ok := rtObj["data"]; ok {
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if stepMap, ok := step.(map[string]interface{}); ok {
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if stepMap["currentstep"] == "" {
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t.Errorf("Empty step number for %v", stepMap["name"])
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}
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}
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}
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}
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})
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preloadExists := false
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t.Run("preload-exists", func(t *testing.T) {
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// skip for none, as none driver does not have preload feature.
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if NoneDriver() {
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t.Skip("None driver does not have preload")
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}
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// Driver does not matter here, since the only exception is none driver,
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// which cannot occur here.
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if download.PreloadExists(v, containerRuntime, "docker", true) {
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// Just make sure the tarball path exists
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if _, err := os.Stat(download.TarballPath(v, containerRuntime)); err != nil {
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t.Errorf("failed to verify preloaded tarball file exists: %v", err)
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}
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preloadExists = true
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} else {
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t.Skip("No preload image")
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}
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})
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t.Run("cached-images", func(t *testing.T) {
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// skip verify for cache images if --driver=none
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if NoneDriver() {
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t.Skip("None driver has no cache")
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}
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if preloadExists {
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t.Skip("Preload exists, images won't be cached")
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}
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imgs, err := images.Kubeadm("", v)
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if err != nil {
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t.Errorf("failed to get kubeadm images for %v: %+v", v, err)
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}
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for _, img := range imgs {
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img = strings.Replace(img, ":", "_", 1) // for example kube-scheduler:v1.15.2 --> kube-scheduler_v1.15.2
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fp := filepath.Join(localpath.MiniPath(), "cache", "images", img)
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_, err := os.Stat(fp)
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if err != nil {
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t.Errorf("expected image file exist at %q but got error: %v", fp, err)
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}
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}
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})
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t.Run("binaries", func(t *testing.T) {
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if preloadExists {
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t.Skip("Preload exists, binaries are present within.")
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}
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// checking binaries downloaded (kubelet,kubeadm)
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for _, bin := range constants.KubernetesReleaseBinaries {
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fp := filepath.Join(localpath.MiniPath(), "cache", "linux", v, bin)
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_, err := os.Stat(fp)
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if err != nil {
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t.Errorf("expected the file for binary exist at %q but got error %v", fp, err)
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}
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}
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})
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t.Run("kubectl", func(t *testing.T) {
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// If we are on darwin/windows, check to make sure OS specific kubectl has been downloaded
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// as well for the `minikube kubectl` command
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if runtime.GOOS == "linux" {
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t.Skip("Test for darwin and windows")
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}
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binary := "kubectl"
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if runtime.GOOS == "windows" {
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binary = "kubectl.exe"
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}
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fp := filepath.Join(localpath.MiniPath(), "cache", runtime.GOOS, v, binary)
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if _, err := os.Stat(fp); err != nil {
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t.Errorf("expected the file for binary exist at %q but got error %v", fp, err)
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}
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})
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// checks if the duration of `minikube logs` takes longer than 5 seconds
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t.Run("LogsDuration", func(t *testing.T) {
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ctx, cancel := context.WithTimeout(context.Background(), Seconds(5))
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defer cancel()
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args := []string{"logs", "-p", profile}
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if _, err := Run(t, exec.CommandContext(ctx, Target(), args...)); err != nil {
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t.Logf("minikube logs failed with error: %v", err)
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}
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if err := ctx.Err(); err == context.DeadlineExceeded {
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t.Error("minikube logs expected to finish by 5 seconds, but took longer")
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}
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})
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})
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}
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// This is a weird place to test profile deletion, but this test is serial, and we have a profile to delete!
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t.Run("DeleteAll", func(t *testing.T) {
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defer PostMortemLogs(t, profile)
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if !CanCleanup() {
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t.Skip("skipping, as cleanup is disabled")
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}
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rr, err := Run(t, exec.CommandContext(ctx, Target(), "delete", "--all"))
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if err != nil {
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t.Errorf("failed to delete all. args: %q : %v", rr.Command(), err)
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}
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})
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// Delete should always succeed, even if previously partially or fully deleted.
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t.Run("DeleteAlwaysSucceeds", func(t *testing.T) {
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defer PostMortemLogs(t, profile)
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if !CanCleanup() {
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t.Skip("skipping, as cleanup is disabled")
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}
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rr, err := Run(t, exec.CommandContext(ctx, Target(), "delete", "-p", profile))
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if err != nil {
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t.Errorf("failed to delete. args: %q: %v", rr.Command(), err)
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}
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})
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}
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// TestDownloadOnlyKic makes sure --download-only caches the docker driver images as well.
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func TestDownloadOnlyKic(t *testing.T) {
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if !KicDriver() {
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t.Skip("skipping, only for docker or podman driver")
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}
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profile := UniqueProfileName("download-docker")
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ctx, cancel := context.WithTimeout(context.Background(), Minutes(15))
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defer Cleanup(t, profile, cancel)
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cRuntime := ContainerRuntime()
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args := []string{"start", "--download-only", "-p", profile, "--force", "--alsologtostderr"}
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args = append(args, StartArgs()...)
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cmd := exec.CommandContext(ctx, Target(), args...)
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// make sure this works even if docker daemon isn't running
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cmd.Env = append(os.Environ(), "DOCKER_HOST=/does/not/exist")
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if _, err := Run(t, cmd); err != nil {
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t.Errorf("start with download only failed %q : %v", args, err)
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}
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// Make sure the downloaded image tarball exists
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tarball := download.TarballPath(constants.DefaultKubernetesVersion, cRuntime)
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contents, err := ioutil.ReadFile(tarball)
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if err != nil {
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t.Errorf("failed to read tarball file %q: %v", tarball, err)
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}
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if arm64Platform() {
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t.Skip("Skip for arm64 platform. See https://github.com/kubernetes/minikube/issues/10144")
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}
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// Make sure it has the correct checksum
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checksum := md5.Sum(contents)
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remoteChecksum, err := ioutil.ReadFile(download.PreloadChecksumPath(constants.DefaultKubernetesVersion, cRuntime))
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if err != nil {
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t.Errorf("failed to read checksum file %q : %v", download.PreloadChecksumPath(constants.DefaultKubernetesVersion, cRuntime), err)
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}
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if string(remoteChecksum) != string(checksum[:]) {
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t.Errorf("failed to verify checksum. checksum of %q does not match remote checksum (%q != %q)", tarball, string(remoteChecksum), string(checksum[:]))
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}
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}
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