public Builder setLayerConfigurations(List<FileEntriesLayer> layerConfigurations) {
      this.layerConfigurations = ImmutableList.copyOf(layerConfigurations);
      return this;
    }
Sets the layers to build.

@param layerConfigurations the configurations for the layers
@return this
jib-core/src/main/java/com/google/cloud/tools/jib/configuration/BuildContext.java