如何在oci_image中包括焦油（通过oci.pull（）获得？

Question

我想在我的oci_image中安装一个软件包（在这种情况下为

r-base

）。我的（不是很努力的）代码看起来像这样：

# ============
# MODULE.bazel
# ============

oci.pull(
    name = "databricksruntime",
    digest = "sha256:601cf3720547f3a28847071915b1f3f3a633746cac796bf9f4ed0b7592574ec3",
    image = "index.docker.io/databricksruntime/standard",
)

oci.pull(
    name = "r_base",
    digest = "sha256:feaff63863ff449976a4ba3935ef815b77236294f52c5e7749a179092772a456",
    image = "index.docker.io/library/r-base",
)

use_repo(oci, "databricksruntime", "r_base")

# ===========
# BUILD.bazel
# ===========

oci_image(
    name = "image",
    base = "@databricksruntime",
    tars = [
        "@r_base",
    ],
)

但是，在建立时间，我的Bazel命令失败：

> bazel build //path_to_my:image

File "/private/var/tmp/_bazel_stephengross/388d8b385f2abe50aa216c398c4790da/external/rules_oci~/oci/private/image.bzl", line 189, column 43, in _oci_image_impl
                descriptor = _calculate_descriptor(ctx, i, layer, zstd, jq, coreutils, regctl)
File "/private/var/tmp/_bazel_stephengross/388d8b385f2abe50aa216c398c4790da/external/rules_oci~/oci/private/image.bzl", line 106, column 13, in _calculate_descriptor
                args.add(layer)
Error in add: Cannot add directories to Args#add since they may expand to multiple values. Either use Args#add_all (if you want expansion) or args.add(directory.path) (if you do not).

不间断的是，我对

@r_base

（作为一个）的引用不起作用。我怀疑有一些Bazel Magic可以包裹焦油。到目前为止，我的尝试（

tar

等）已经失败。任何关于将

@r_base

tobted repo作为

tar(...); pkg_tar(...)

层中的to层的指针都得到赞赏！

事实证明，首选解决方案是使用

oci.pull()

（docs 

https：//github.com/googlecontainertools/rules_distroless/blob/main/main/main/docs/apt.md.）。