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rkt_image_rm_test.go
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// Copyright 2015 The rkt Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build host coreos src kvm
package main
import (
"bytes"
"fmt"
"os"
"os/exec"
"strings"
"testing"
"github.com/appc/spec/schema/types"
"github.com/coreos/gexpect"
"github.com/coreos/rkt/tests/testutils"
)
const (
rmImageOk = "rm: 1 image(s) successfully removed"
unreferencedACI = "rkt-unreferencedACI.aci"
unreferencedApp = "coreos.com/rkt-unreferenced"
referencedApp = "coreos.com/rkt-inspect"
stage1App = "coreos.com/rkt/stage1"
)
func TestImageRunRmName(t *testing.T) {
imageFile := patchTestACI(unreferencedACI, fmt.Sprintf("--name=%s", unreferencedApp))
defer os.Remove(imageFile)
ctx := testutils.NewRktRunCtx()
defer ctx.Cleanup()
cmd := fmt.Sprintf("%s --insecure-options=image fetch %s", ctx.Cmd(), imageFile)
spawnAndWaitOrFail(t, cmd, 0)
// at this point we know that RKT_INSPECT_IMAGE env var is not empty
referencedACI := os.Getenv("RKT_INSPECT_IMAGE")
cmd = fmt.Sprintf("%s --insecure-options=image run --mds-register=false %s", ctx.Cmd(), referencedACI)
spawnAndWaitOrFail(t, cmd, 0)
t.Logf("Retrieving stage1 image name")
stage1ImageName := getImageName(t, ctx, stage1App)
t.Logf("Removing stage1 image (should work)")
removeImage(t, ctx, stage1ImageName)
t.Logf("Removing image for app %s (should work)", referencedApp)
removeImage(t, ctx, referencedApp)
t.Logf("Removing image for app %s (should work)", unreferencedApp)
removeImage(t, ctx, unreferencedApp)
}
func TestImageRunRmID(t *testing.T) {
imageFile := patchTestACI(unreferencedACI, fmt.Sprintf("--name=%s", unreferencedApp))
defer os.Remove(imageFile)
ctx := testutils.NewRktRunCtx()
defer ctx.Cleanup()
cmd := fmt.Sprintf("%s --insecure-options=image fetch %s", ctx.Cmd(), imageFile)
t.Logf("Fetching %s", imageFile)
spawnAndWaitOrFail(t, cmd, 0)
// at this point we know that RKT_INSPECT_IMAGE env var is not empty
referencedACI := os.Getenv("RKT_INSPECT_IMAGE")
cmd = fmt.Sprintf("%s --insecure-options=image run --mds-register=false %s", ctx.Cmd(), referencedACI)
t.Logf("Running %s", referencedACI)
spawnAndWaitOrFail(t, cmd, 0)
t.Logf("Retrieving stage1 image ID")
stage1ImageID, err := getImageID(ctx, stage1App)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Retrieving %s image ID", referencedApp)
referencedImageID, err := getImageID(ctx, referencedApp)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Retrieving %s image ID", unreferencedApp)
unreferencedImageID, err := getImageID(ctx, unreferencedApp)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Removing stage1 image (should work)")
removeImage(t, ctx, stage1ImageID)
t.Logf("Removing image for app %s (should work)", referencedApp)
removeImage(t, ctx, referencedImageID)
t.Logf("Removing image for app %s (should work)", unreferencedApp)
removeImage(t, ctx, unreferencedImageID)
}
func TestImageRunRmDuplicate(t *testing.T) {
imageFile := patchTestACI(unreferencedACI, fmt.Sprintf("--name=%s", unreferencedApp))
defer os.Remove(imageFile)
ctx := testutils.NewRktRunCtx()
defer ctx.Cleanup()
cmd := fmt.Sprintf("%s --insecure-options=image fetch %s", ctx.Cmd(), imageFile)
t.Logf("Fetching %s", imageFile)
spawnAndWaitOrFail(t, cmd, 0)
// at this point we know that RKT_INSPECT_IMAGE env var is not empty
referencedACI := os.Getenv("RKT_INSPECT_IMAGE")
cmd = fmt.Sprintf("%s --insecure-options=image run --mds-register=false %s", ctx.Cmd(), referencedACI)
t.Logf("Running %s", referencedACI)
spawnAndWaitOrFail(t, cmd, 0)
t.Logf("Retrieving %s image ID", referencedApp)
referencedImageID, err := getImageID(ctx, referencedApp)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Retrieving %s image ID", unreferencedApp)
unreferencedImageID, err := getImageID(ctx, unreferencedApp)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Removing image for app %s (should work)", referencedApp)
removeImage(t, ctx, referencedApp, referencedImageID)
t.Logf("Removing image for app %s (should work)", unreferencedApp)
removeImage(t, ctx, unreferencedImageID, unreferencedApp)
}
func TestImagePrepareRmNameRun(t *testing.T) {
imageFile := patchTestACI(unreferencedACI, fmt.Sprintf("--name=%s", unreferencedApp))
defer os.Remove(imageFile)
ctx := testutils.NewRktRunCtx()
defer ctx.Cleanup()
cmd := fmt.Sprintf("%s --insecure-options=image fetch %s", ctx.Cmd(), imageFile)
t.Logf("Fetching %s", imageFile)
spawnAndWaitOrFail(t, cmd, 0)
// at this point we know that RKT_INSPECT_IMAGE env var is not empty
referencedACI := os.Getenv("RKT_INSPECT_IMAGE")
cmds := strings.Fields(ctx.Cmd())
prepareCmd := exec.Command(cmds[0], cmds[1:]...)
prepareCmd.Args = append(prepareCmd.Args, "--insecure-options=image", "prepare", referencedACI)
output, err := prepareCmd.Output()
if err != nil {
t.Fatalf("Cannot read the output: %v", err)
}
podIDStr := strings.TrimSpace(string(output))
podID, err := types.NewUUID(podIDStr)
if err != nil {
t.Fatalf("%q is not a valid UUID: %v", podIDStr, err)
}
t.Logf("Retrieving stage1 image name")
stage1ImageName := getImageName(t, ctx, stage1App)
t.Logf("Removing stage1 image (should work)")
removeImage(t, ctx, stage1ImageName)
t.Logf("Removing image for app %s (should work)", referencedApp)
removeImage(t, ctx, referencedApp)
t.Logf("Removing image for app %s (should work)", unreferencedApp)
removeImage(t, ctx, unreferencedApp)
cmd = fmt.Sprintf("%s run-prepared --mds-register=false %s", ctx.Cmd(), podID.String())
t.Logf("Running %s", referencedACI)
spawnAndWaitOrFail(t, cmd, 0)
}
func TestImagePrepareRmIDRun(t *testing.T) {
imageFile := patchTestACI(unreferencedACI, fmt.Sprintf("--name=%s", unreferencedApp))
defer os.Remove(imageFile)
ctx := testutils.NewRktRunCtx()
defer ctx.Cleanup()
cmd := fmt.Sprintf("%s --insecure-options=image fetch %s", ctx.Cmd(), imageFile)
t.Logf("Fetching %s", imageFile)
spawnAndWaitOrFail(t, cmd, 0)
// at this point we know that RKT_INSPECT_IMAGE env var is not empty
referencedACI := os.Getenv("RKT_INSPECT_IMAGE")
cmds := strings.Fields(ctx.Cmd())
prepareCmd := exec.Command(cmds[0], cmds[1:]...)
prepareCmd.Args = append(prepareCmd.Args, "--insecure-options=image", "prepare", referencedACI)
output, err := prepareCmd.Output()
if err != nil {
t.Fatalf("Cannot read the output: %v", err)
}
podIDStr := strings.TrimSpace(string(output))
podID, err := types.NewUUID(podIDStr)
if err != nil {
t.Fatalf("%q is not a valid UUID: %v", podIDStr, err)
}
t.Logf("Retrieving stage1 imageID")
stage1ImageID, err := getImageID(ctx, stage1App)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Retrieving %s image ID", referencedApp)
referencedImageID, err := getImageID(ctx, referencedApp)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Retrieving %s image ID", unreferencedApp)
unreferencedImageID, err := getImageID(ctx, unreferencedApp)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Removing stage1 image (should work)")
removeImage(t, ctx, stage1ImageID)
t.Logf("Removing image for app %s (should work)", referencedApp)
removeImage(t, ctx, referencedImageID)
t.Logf("Removing image for app %s (should work)", unreferencedApp)
removeImage(t, ctx, unreferencedImageID)
cmd = fmt.Sprintf("%s run-prepared --mds-register=false %s", ctx.Cmd(), podID.String())
t.Logf("Running %s", referencedACI)
spawnAndWaitOrFail(t, cmd, 0)
}
func TestImagePrepareRmDuplicate(t *testing.T) {
imageFile := patchTestACI(unreferencedACI, fmt.Sprintf("--name=%s", unreferencedApp))
defer os.Remove(imageFile)
ctx := testutils.NewRktRunCtx()
defer ctx.Cleanup()
cmd := fmt.Sprintf("%s --insecure-options=image fetch %s", ctx.Cmd(), imageFile)
t.Logf("Fetching %s", imageFile)
spawnAndWaitOrFail(t, cmd, 0)
// at this point we know that RKT_INSPECT_IMAGE env var is not empty
referencedACI := os.Getenv("RKT_INSPECT_IMAGE")
cmds := strings.Fields(ctx.Cmd())
prepareCmd := exec.Command(cmds[0], cmds[1:]...)
prepareCmd.Args = append(prepareCmd.Args, "--insecure-options=image", "prepare", referencedACI)
output, err := prepareCmd.Output()
if err != nil {
t.Fatalf("Cannot read the output: %v", err)
}
podIDStr := strings.TrimSpace(string(output))
podID, err := types.NewUUID(podIDStr)
if err != nil {
t.Fatalf("%q is not a valid UUID: %v", podIDStr, err)
}
t.Logf("Retrieving %s image ID", referencedApp)
referencedImageID, err := getImageID(ctx, referencedApp)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Retrieving %s image ID", unreferencedApp)
unreferencedImageID, err := getImageID(ctx, unreferencedApp)
if err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
t.Logf("Removing image for app %s (should work)", referencedApp)
removeImage(t, ctx, referencedApp, referencedImageID)
t.Logf("Removing image for app %s (should work)", unreferencedApp)
removeImage(t, ctx, unreferencedImageID, unreferencedApp)
cmd = fmt.Sprintf("%s run-prepared --mds-register=false %s", ctx.Cmd(), podID.String())
t.Logf("Running %s", referencedACI)
spawnAndWaitOrFail(t, cmd, 0)
}
func getImageName(t *testing.T, ctx *testutils.RktRunCtx, name string) string {
cmd := fmt.Sprintf(`/bin/sh -c "%s image list --fields=name --no-legend | grep %s"`, ctx.Cmd(), name)
child := spawnOrFail(t, cmd)
imageName, err := child.ReadLine()
imageName = strings.TrimSpace(imageName)
imageName = string(bytes.Trim([]byte(imageName), "\x00"))
if err != nil {
t.Fatalf("Cannot exec: %v", err)
}
waitOrFail(t, child, 0)
return imageName
}
func getImageID(ctx *testutils.RktRunCtx, name string) (string, error) {
cmd := fmt.Sprintf(`/bin/sh -c "%s image list --fields=id,name --no-legend | grep %s | awk '{print $1}'"`, ctx.Cmd(), name)
child, err := gexpect.Spawn(cmd)
if err != nil {
return "", fmt.Errorf("Cannot exec rkt: %v", err)
}
imageID, err := child.ReadLine()
imageID = strings.TrimSpace(imageID)
imageID = string(bytes.Trim([]byte(imageID), "\x00"))
if err != nil {
return "", fmt.Errorf("Cannot exec: %v", err)
}
if err := child.Wait(); err != nil {
return "", fmt.Errorf("rkt didn't terminate correctly: %v", err)
}
return imageID, nil
}
func removeImage(t *testing.T, ctx *testutils.RktRunCtx, images ...string) {
cmd := fmt.Sprintf("%s image rm %s", ctx.Cmd(), strings.Join(images, " "))
child, err := gexpect.Spawn(cmd)
if err != nil {
t.Fatalf("Cannot exec: %v", err)
}
if err := expectWithOutput(child, rmImageOk); err != nil {
t.Fatalf("Expected %q but not found: %v", rmImageOk, err)
}
if err := child.Wait(); err != nil {
t.Fatalf("rkt didn't terminate correctly: %v", err)
}
}