add draft bazel build docker image

containers/bazel/.dockerignore

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+cloudbuild.yaml

containers/bazel/Dockerfile

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+FROM debian:stable
+
+RUN echo 'intall packages'; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        locales openssh-client gnupg ca-certificates  \
+        zip wget git \
+        gdb build-essential  \
+        ninja-build \
+        libelf-dev libffi-dev gcc-multilib \
+        # for llvm-libc tests that build mpfr and gmp from source
+        autoconf automake libtool \
+        ccache \
+        python3 python3-psutil \
+        python3-pip python3-setuptools \
+        lsb-release software-properties-common \
+        swig python3-dev libedit-dev libncurses5-dev libxml2-dev liblzma-dev golang rsync jq \
+        # for llvm installation script
+        sudo;
+
+# debian stable cmake is 3.18, we need to install a more recent version.
+RUN wget --no-verbose -O /cmake.sh https://github.com/Kitware/CMake/releases/download/v3.23.3/cmake-3.23.3-linux-x86_64.sh; \
+    chmod +x /cmake.sh; \
+    mkdir -p /etc/cmake; \
+    /cmake.sh --prefix=/etc/cmake --skip-license; \
+    ln -s /etc/cmake/bin/cmake /usr/bin/cmake; \
+    cmake --version; \
+    rm /cmake.sh
+
+# LLVM must be installed after prerequsite packages.
+ENV LLVM_VERSION=16
+RUN echo 'install llvm ${LLVM_VERSION}'; \
+    wget --no-verbose https://apt.llvm.org/llvm.sh; \
+    chmod +x llvm.sh; \
+    ./llvm.sh ${LLVM_VERSION};\
+    apt-get update; \
+    apt install -y clang-${LLVM_VERSION} clang-format-${LLVM_VERSION} clang-tidy-${LLVM_VERSION} lld-${LLVM_VERSION}; \
+    ln -s /usr/bin/clang-${LLVM_VERSION} /usr/bin/clang;\
+    ln -s /usr/bin/clang++-${LLVM_VERSION} /usr/bin/clang++;\
+    ln -s /usr/bin/clang-tidy-${LLVM_VERSION} /usr/bin/clang-tidy;\
+    ln -s /usr/bin/clang-tidy-diff-${LLVM_VERSION}.py /usr/bin/clang-tidy-diff;\
+    ln -s /usr/bin/clang-format-${LLVM_VERSION} /usr/bin/clang-format;\
+    ln -s /usr/bin/clang-format-diff-${LLVM_VERSION} /usr/bin/clang-format-diff;\
+    ln -s /usr/bin/lld-${LLVM_VERSION} /usr/bin/lld;\
+    ln -s /usr/bin/lldb-${LLVM_VERSION} /usr/bin/lldb;\
+    ln -s /usr/bin/ld.lld-${LLVM_VERSION} /usr/bin/ld.lld
+
+RUN echo 'configure locale'; \
+    sed --in-place '/en_US.UTF-8/s/^#//' /etc/locale.gen ;\
+    locale-gen ;\
+    echo 'make python 3 default'; \
+    rm -f /usr/bin/python && ln -s /usr/bin/python3 /usr/bin/python; \
+    pip3 install wheel
+
+# Configure locale
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
+
+RUN wget --no-verbose -O /usr/bin/bazelisk https://github.com/bazelbuild/bazelisk/releases/download/v1.17.0/bazelisk-linux-amd64; \
+  chmod +x /usr/bin/bazelisk; \
+  bazelisk --version
+
+RUN echo 'install buildkite' ;\
+    apt-get install -y apt-transport-https gnupg;\
+    sh -c 'echo deb https://apt.buildkite.com/buildkite-agent stable main > /etc/apt/sources.list.d/buildkite-agent.list' ;\
+    apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 32A37959C2FA5C3C99EFBC32A79206696452D198 ;\
+    apt-get update ;\
+    apt-get install -y buildkite-agent tini gosu; \
+    apt-get clean;
+COPY *.sh /usr/local/bin/
+RUN chmod og+rx /usr/local/bin/*.sh
+COPY --chown=buildkite-agent:buildkite-agent pre-checkout /etc/buildkite-agent/hooks
+COPY --chown=buildkite-agent:buildkite-agent post-checkout /etc/buildkite-agent/hooks
+
+# buildkite working directory
+VOLUME /var/lib/buildkite-agent
+
+ENTRYPOINT ["entrypoint.sh"]
+CMD ["gosu", "buildkite-agent", "buildkite-agent", "start", "--no-color"]

containers/bazel/entrypoint.sh

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+#!/usr/bin/env bash
+
+# Copyright 2021 Google LLC
+#
+# Licensed under the the Apache License v2.0 with LLVM Exceptions (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://llvm.org/LICENSE.txt
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+set -eo pipefail
+
+USER=buildkite-agent
+P="${BUILDKITE_BUILD_PATH:-/var/lib/buildkite-agent}"
+set -u
+mkdir -p "$P"
+chown -R ${USER}:${USER} "$P"
+
+export CCACHE_DIR="${P}"/ccache
+export CCACHE_MAXSIZE=20G
+mkdir -p "${CCACHE_DIR}"
+chown -R ${USER}:${USER} "${CCACHE_DIR}"
+
+# /mnt/ssh should contain known_hosts, id_rsa and id_rsa.pub .
+mkdir -p /var/lib/buildkite-agent/.ssh
+if [ -d /mnt/ssh ]; then
+  cp /mnt/ssh/* /var/lib/buildkite-agent/.ssh || echo "no "
+  chmod 700 /var/lib/buildkite-agent/.ssh
+  chmod 600 /var/lib/buildkite-agent/.ssh/*
+  chown -R buildkite-agent:buildkite-agent /var/lib/buildkite-agent/.ssh/
+else
+  echo "/mnt/ssh is not mounted"
+fi
+exec /usr/bin/tini -g -- $@

containers/bazel/post-checkout

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+# Copyright 2021 Google LLC
+#
+# Licensed under the the Apache License v2.0 with LLVM Exceptions (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://llvm.org/LICENSE.txt
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# The `post-checkout` hook runs after checkout.
+
+set -eu
+
+# Run prune as git will start to complain "warning: There are too many unreachable loose objects; run 'git prune' to remove them.".
+# That happens as we routinely drop old branches.
+git prune
+if [ -f ".git/gc.log" ]; then
+  echo ".git/gc.log exist"
+  cat ./.git/gc.log
+  rm -f ./.git/gc.log
+fi

containers/bazel/pre-checkout

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+#!/bin/bash
+# Copyright 2020 Google LLC
+#
+# Licensed under the the Apache License v2.0 with LLVM Exceptions (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://llvm.org/LICENSE.txt
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# The `pre-checkout` hook will run just before your pipelines source code is
+# checked out from your SCM provider
+
+set -e
+
+# Convert https://github.com/llvm-premerge-tests/llvm-project.git -> llvm-project
+# to use the same directory for fork and origin.
+BUILDKITE_BUILD_CHECKOUT_PATH="${BUILDKITE_BUILD_PATH}/$(echo $BUILDKITE_REPO | sed -E "s#.*/([^/]*)#\1#" | sed "s/.git$//")"