Examples with DescriptorDigest com.google.cloud.tools.jib.api.DescriptorDigest used on opensource projects

Example 11 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by GoogleContainerTools.

the class BlobTest method verifyBlobWriteTo.

/**
 * Checks that the {@link Blob} streams the expected string.
 */
private void verifyBlobWriteTo(String expected, Blob blob) throws IOException {
    OutputStream outputStream = new ByteArrayOutputStream();
    BlobDescriptor blobDescriptor = blob.writeTo(outputStream);
    String output = outputStream.toString();
    Assert.assertEquals(expected, output);
    byte[] expectedBytes = expected.getBytes(StandardCharsets.UTF_8);
    Assert.assertEquals(expectedBytes.length, blobDescriptor.getSize());
    DescriptorDigest expectedDigest = Digests.computeDigest(new ByteArrayInputStream(expectedBytes)).getDigest();
    Assert.assertEquals(expectedDigest, blobDescriptor.getDigest());
}

Example 12 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by GoogleContainerTools.

the class JsonToImageTranslator method toImage.

/**
 * Translates {@link V21ManifestTemplate} to {@link Image}.
 *
 * @param manifestTemplate the template containing the image layers.
 * @return the translated {@link Image}.
 * @throws LayerPropertyNotFoundException if adding image layers fails.
 * @throws BadContainerConfigurationFormatException if the container configuration is in a bad
 *     format
 */
public static Image toImage(V21ManifestTemplate manifestTemplate) throws LayerPropertyNotFoundException, BadContainerConfigurationFormatException {
    Image.Builder imageBuilder = Image.builder(V21ManifestTemplate.class);
    // V21 layers are in reverse order of V22. (The first layer is the latest one.)
    for (DescriptorDigest digest : Lists.reverse(manifestTemplate.getLayerDigests())) {
        imageBuilder.addLayer(new DigestOnlyLayer(digest));
    }
    Optional<ContainerConfigurationTemplate> configuration = manifestTemplate.getContainerConfiguration();
    if (configuration.isPresent()) {
        configureBuilderWithContainerConfiguration(imageBuilder, configuration.get());
    }
    return imageBuilder.build();
}

Example 13 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by GoogleContainerTools.

the class JsonToImageTranslator method toImage.

/**
 * Translates {@link BuildableManifestTemplate} to {@link Image}. Uses the corresponding {@link
 * ContainerConfigurationTemplate} to get the layer diff IDs.
 *
 * @param manifestTemplate the template containing the image layers.
 * @param containerConfigurationTemplate the template containing the diff IDs and container
 *     configuration properties.
 * @return the translated {@link Image}.
 * @throws LayerCountMismatchException if the manifest and configuration contain conflicting layer
 *     information.
 * @throws LayerPropertyNotFoundException if adding image layers fails.
 * @throws BadContainerConfigurationFormatException if the container configuration is in a bad
 *     format
 */
public static Image toImage(BuildableManifestTemplate manifestTemplate, ContainerConfigurationTemplate containerConfigurationTemplate) throws LayerCountMismatchException, LayerPropertyNotFoundException, BadContainerConfigurationFormatException {
    List<ReferenceNoDiffIdLayer> layers = new ArrayList<>();
    for (BuildableManifestTemplate.ContentDescriptorTemplate layerObjectTemplate : manifestTemplate.getLayers()) {
        if (layerObjectTemplate.getDigest() == null) {
            throw new IllegalArgumentException("All layers in the manifest template must have digest set");
        }
        layers.add(new ReferenceNoDiffIdLayer(new BlobDescriptor(layerObjectTemplate.getSize(), layerObjectTemplate.getDigest())));
    }
    List<DescriptorDigest> diffIds = containerConfigurationTemplate.getDiffIds();
    if (layers.size() != diffIds.size()) {
        throw new LayerCountMismatchException("Mismatch between image manifest and container configuration");
    }
    Image.Builder imageBuilder = Image.builder(manifestTemplate.getClass());
    for (int layerIndex = 0; layerIndex < layers.size(); layerIndex++) {
        ReferenceNoDiffIdLayer noDiffIdLayer = layers.get(layerIndex);
        DescriptorDigest diffId = diffIds.get(layerIndex);
        imageBuilder.addLayer(new ReferenceLayer(noDiffIdLayer.getBlobDescriptor(), diffId));
    }
    configureBuilderWithContainerConfiguration(imageBuilder, containerConfigurationTemplate);
    return imageBuilder.build();
}

Example 14 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by GoogleContainerTools.

the class ImageTarball method ociWriteTo.

private void ociWriteTo(OutputStream out) throws IOException {
    TarStreamBuilder tarStreamBuilder = new TarStreamBuilder();
    OciManifestTemplate manifest = new OciManifestTemplate();
    // Adds all the layers to the tarball and manifest
    for (Layer layer : image.getLayers()) {
        DescriptorDigest digest = layer.getBlobDescriptor().getDigest();
        long size = layer.getBlobDescriptor().getSize();
        tarStreamBuilder.addBlobEntry(layer.getBlob(), size, BLOB_PREFIX + digest.getHash(), TAR_ENTRY_MODIFICATION_TIME);
        manifest.addLayer(size, digest);
    }
    // Adds the container configuration to the tarball and manifest
    JsonTemplate containerConfiguration = new ImageToJsonTranslator(image).getContainerConfiguration();
    BlobDescriptor configDescriptor = Digests.computeDigest(containerConfiguration);
    manifest.setContainerConfiguration(configDescriptor.getSize(), configDescriptor.getDigest());
    tarStreamBuilder.addByteEntry(JsonTemplateMapper.toByteArray(containerConfiguration), BLOB_PREFIX + configDescriptor.getDigest().getHash(), TAR_ENTRY_MODIFICATION_TIME);
    // Adds the manifest to the tarball
    BlobDescriptor manifestDescriptor = Digests.computeDigest(manifest);
    tarStreamBuilder.addByteEntry(JsonTemplateMapper.toByteArray(manifest), BLOB_PREFIX + manifestDescriptor.getDigest().getHash(), TAR_ENTRY_MODIFICATION_TIME);
    // Adds the oci-layout and index.json
    tarStreamBuilder.addByteEntry("{\"imageLayoutVersion\": \"1.0.0\"}".getBytes(StandardCharsets.UTF_8), "oci-layout", TAR_ENTRY_MODIFICATION_TIME);
    OciIndexTemplate index = new OciIndexTemplate();
    // TODO: figure out how to tag with allTargetImageTags
    index.addManifest(manifestDescriptor, imageReference.toStringWithQualifier());
    tarStreamBuilder.addByteEntry(JsonTemplateMapper.toByteArray(index), "index.json", TAR_ENTRY_MODIFICATION_TIME);
    tarStreamBuilder.writeAsTarArchiveTo(out);
}

Example 15 with DescriptorDigest

use of com.google.cloud.tools.jib.api.DescriptorDigest in project jib by GoogleContainerTools.

the class PushBlobStep method call.

@Override
public BlobDescriptor call() throws IOException, RegistryException {
    EventHandlers eventHandlers = buildContext.getEventHandlers();
    DescriptorDigest blobDigest = blobDescriptor.getDigest();
    try (ProgressEventDispatcher progressEventDispatcher = progressEventDispatcherFactory.create("pushing blob " + blobDigest, blobDescriptor.getSize());
        TimerEventDispatcher ignored = new TimerEventDispatcher(eventHandlers, DESCRIPTION + blobDescriptor);
        ThrottledAccumulatingConsumer throttledProgressReporter = new ThrottledAccumulatingConsumer(progressEventDispatcher::dispatchProgress)) {
        // check if the BLOB is available
        if (!forcePush && registryClient.checkBlob(blobDigest).isPresent()) {
            eventHandlers.dispatch(LogEvent.info("Skipping push; BLOB already exists on target registry : " + blobDescriptor));
            return blobDescriptor;
        }
        // If base and target images are in the same registry, then use mount/from to try mounting the
        // BLOB from the base image repository to the target image repository and possibly avoid
        // having to push the BLOB. See
        // https://docs.docker.com/registry/spec/api/#cross-repository-blob-mount for details.
        String baseRegistry = buildContext.getBaseImageConfiguration().getImageRegistry();
        String baseRepository = buildContext.getBaseImageConfiguration().getImageRepository();
        String targetRegistry = buildContext.getTargetImageConfiguration().getImageRegistry();
        String sourceRepository = targetRegistry.equals(baseRegistry) ? baseRepository : null;
        registryClient.pushBlob(blobDigest, blob, sourceRepository, throttledProgressReporter);
        return blobDescriptor;
    }
}