chore: import upstream snapshot with attribution

ci/docker/ray-cpp-core.Dockerfile

@@ -0,0 +1,67 @@
+# syntax=docker/dockerfile:1.3-labs
+#
+# Ray C++ Core Artifacts Builder
+# ==============================
+# Builds ray_cpp_pkg.zip containing C++ headers, libraries, and examples.
+#
+ARG ARCH_SUFFIX=
+ARG HOSTTYPE=x86_64
+ARG MANYLINUX_VERSION
+FROM rayproject/manylinux2014:${MANYLINUX_VERSION}-jdk-${HOSTTYPE} AS builder
+
+ARG PYTHON_VERSION=3.10
+ARG BUILDKITE_BAZEL_CACHE_URL
+ARG BUILDKITE_CACHE_READONLY
+ARG HOSTTYPE
+ARG CACHE_DIR=/opt/cache
+
+ENV BUILDKITE_BAZEL_CACHE_URL=${BUILDKITE_BAZEL_CACHE_URL}
+ENV BUILDKITE_CACHE_READONLY=${BUILDKITE_CACHE_READONLY}
+ENV CACHE_DIR=${CACHE_DIR}
+ENV DOWNLOAD_CACHE=${CACHE_DIR}/downloads
+ENV BAZEL_CACHE=${CACHE_DIR}/bazel
+
+WORKDIR /home/forge/ray
+
+COPY . .
+
+RUN --mount=type=cache,target=${DOWNLOAD_CACHE},uid=2000,gid=100,id=ray-downloads-${HOSTTYPE} \
+    --mount=type=cache,target=${BAZEL_CACHE},uid=2000,gid=100,id=ray-bazel-${HOSTTYPE} \
+    <<'EOF'
+#!/bin/bash
+set -euo pipefail
+
+export BAZELISK_HOME=$DOWNLOAD_CACHE/bazelisk
+REPOSITORY_CACHE=$DOWNLOAD_CACHE/repo
+
+PY_CODE="${PYTHON_VERSION//./}"
+PY_BIN="cp${PY_CODE}-cp${PY_CODE}"
+export RAY_BUILD_ENV="manylinux_py${PY_BIN}"
+
+sudo ln -sf "/opt/python/${PY_BIN}/bin/python3" /usr/local/bin/python3
+sudo ln -sf /usr/local/bin/python3 /usr/local/bin/python
+
+BAZEL_CACHE_ARGS=""
+if [[ -z "${BUILDKITE_BAZEL_CACHE_URL:-}" ]]; then
+  # Disable remote cache for local builds (no credentials)
+  BAZEL_CACHE_ARGS="--remote_cache="
+else
+  # Override whatever the base image baked into ~/.bazelrc
+  BAZEL_CACHE_ARGS="--remote_cache=${BUILDKITE_BAZEL_CACHE_URL}"
+  if [[ "${BUILDKITE_CACHE_READONLY:-}" == "true" ]]; then
+    BAZEL_CACHE_ARGS="$BAZEL_CACHE_ARGS --remote_upload_local_results=false"
+  fi
+fi
+
+bazelisk --output_base=$BAZEL_CACHE build --config=ci \
+    --repository_cache=$REPOSITORY_CACHE \
+    $BAZEL_CACHE_ARGS \
+    //cpp:ray_cpp_pkg_zip
+
+cp bazel-bin/cpp/ray_cpp_pkg.zip /home/forge/ray_cpp_pkg.zip
+
+EOF
+
+FROM scratch
+
+COPY --from=builder /home/forge/ray_cpp_pkg.zip /