// BuildAndPushImageOfSizeWithBuilder tries to build an image of wanted size and number of layers. Built image
// is stored as an image stream tag <name>:<tag>. If shouldSucceed is false, a build is expected to fail with
// a denied error. Note the size is only approximate. Resulting image size will be different depending on used
// compression algorithm and metadata overhead.
func BuildAndPushImageOfSizeWithBuilder(
oc *exutil.CLI,
dClient *dockerclient.Client,
namespace, name, tag string,
size uint64,
numberOfLayers int,
shouldSucceed bool,
) error {
istName := name
if tag != "" {
istName += ":" + tag
}
bc, err := oc.REST().BuildConfigs(namespace).Get(name)
if err == nil {
if bc.Spec.CommonSpec.Output.To.Kind != "ImageStreamTag" {
return fmt.Errorf("Unexpected kind of buildspec's output (%s != %s)", bc.Spec.CommonSpec.Output.To.Kind, "ImageStreamTag")
}
bc.Spec.CommonSpec.Output.To.Name = istName
if _, err = oc.REST().BuildConfigs(namespace).Update(bc); err != nil {
return err
}
} else {
err = oc.Run("new-build").Args("--binary", "--name", name, "--to", istName).Execute()
if err != nil {
return err
}
}
tempDir, err := ioutil.TempDir("", "name-build")
if err != nil {
return err
}
dataSize := calculateRoughDataSize(oc.Stdout(), size, numberOfLayers)
lines := make([]string, numberOfLayers+1)
lines[0] = "FROM scratch"
for i := 1; i <= numberOfLayers; i++ {
blobName := fmt.Sprintf("data%d", i)
if err := createRandomBlob(path.Join(tempDir, blobName), dataSize); err != nil {
return err
}
lines[i] = fmt.Sprintf("COPY %s /%s", blobName, blobName)
}
if err := ioutil.WriteFile(path.Join(tempDir, "Dockerfile"), []byte(strings.Join(lines, "\n")+"\n"), 0644); err != nil {
return err
}
out, err := oc.Run("start-build").Args(name, "--from-dir", tempDir, "--wait").Output()
fmt.Fprintf(g.GinkgoWriter, "\nstart-build output:\n%s\n", out)
buildLog, logsErr := oc.Run("logs").Args("bc/" + name).Output()
if match := reSuccessfulBuild.FindStringSubmatch(buildLog); len(match) > 1 {
defer dClient.RemoveImageExtended(match[1], dockerclient.RemoveImageOptions{Force: true})
}
if shouldSucceed && err != nil {
return fmt.Errorf("Got unexpected build error: %v", err)
}
if !shouldSucceed {
if err == nil {
return fmt.Errorf("Build unexpectedly succeeded")
}
if logsErr != nil {
return fmt.Errorf("Failed to show log of build config %s: %v", name, err)
}
if !reExpectedDeniedError.MatchString(buildLog) {
return fmt.Errorf("Failed to match expected %q in: %q", reExpectedDeniedError.String(), buildLog)
}
}
return nil
}
// BuildAndPushImageOfSizeWithDocker tries to build an image of wanted size and number of layers. It instructs
// Docker daemon directly. Built image is stored as an image stream tag <name>:<tag>. If shouldSucceed is
// false, a push is expected to fail with a denied error. Note the size is only approximate. Resulting image
// size will be different depending on used compression algorithm and metadata overhead.
func BuildAndPushImageOfSizeWithDocker(
oc *exutil.CLI,
dClient *dockerclient.Client,
name, tag string,
size uint64,
numberOfLayers int,
outSink io.Writer,
shouldSucceed bool,
) (imageDigest string, err error) {
registryURL, err := GetDockerRegistryURL(oc)
if err != nil {
return "", err
}
tempDir, err := ioutil.TempDir("", "name-build")
if err != nil {
return "", err
}
dataSize := calculateRoughDataSize(oc.Stdout(), size, numberOfLayers)
lines := make([]string, numberOfLayers+1)
lines[0] = "FROM scratch"
for i := 1; i <= numberOfLayers; i++ {
blobName := fmt.Sprintf("data%d", i)
if err := createRandomBlob(path.Join(tempDir, blobName), dataSize); err != nil {
return "", err
}
lines[i] = fmt.Sprintf("COPY %s /%s", blobName, blobName)
}
if err := ioutil.WriteFile(path.Join(tempDir, "Dockerfile"), []byte(strings.Join(lines, "\n")+"\n"), 0644); err != nil {
return "", err
}
imageName := fmt.Sprintf("%s/%s/%s", registryURL, oc.Namespace(), name)
taggedName := fmt.Sprintf("%s:%s", imageName, tag)
err = dClient.BuildImage(dockerclient.BuildImageOptions{
Name: taggedName,
RmTmpContainer: true,
ForceRmTmpContainer: true,
ContextDir: tempDir,
OutputStream: outSink,
})
if err != nil {
return "", fmt.Errorf("failed to build %q image: %v", taggedName, err)
}
image, err := dClient.InspectImage(taggedName)
if err != nil {
return "", err
}
defer dClient.RemoveImageExtended(image.ID, dockerclient.RemoveImageOptions{Force: true})
digest := ""
if len(image.RepoDigests) == 1 {
digest = image.RepoDigests[0]
}
out, err := oc.Run("whoami").Args("-t").Output()
if err != nil {
return "", err
}
token := strings.TrimSpace(out)
var buf bytes.Buffer
err = dClient.PushImage(dockerclient.PushImageOptions{
Name: imageName,
Tag: tag,
Registry: registryURL,
OutputStream: &buf,
}, dockerclient.AuthConfiguration{
Username: "******",
Password: token,
Email: "*****@*****.**",
ServerAddress: registryURL,
})
out = buf.String()
outSink.Write([]byte(out))
if shouldSucceed {
if err != nil {
return "", fmt.Errorf("Got unexpected push error: %v", err)
}
if len(digest) == 0 {
outSink.Write([]byte("matching digest string\n"))
match := rePushedImageDigest.FindStringSubmatch(out)
if len(match) < 2 {
return "", fmt.Errorf("Failed to parse digest")
}
digest = match[1]
}
return digest, nil
}
if err == nil {
return "", fmt.Errorf("Push unexpectedly succeeded")
}
if !reExpectedDeniedError.MatchString(err.Error()) {
return "", fmt.Errorf("Failed to match expected %q in: %q", reExpectedDeniedError.String(), err.Error())
}
return "", nil
}