[libc++] Remove the Docker files for BuildBot

[ldionne]

Summary

We don't use them anymore since we're using the BuildKite setup.

[ldionne]

@EricWF Can you kindly confirm that this is OK to do?

[ldionne]

Can't get reviewer's attention after a couple offline pings, so moving forward.

libcxx/utils/docker/debian9/buildbot/Dockerfile

-
-#===-------------------------------------------------------------------------------------------===//
-# buildslave
-#===-------------------------------------------------------------------------------------------===//
-ARG gcc_tot
-ARG llvm_tot
-
-FROM ${gcc_tot} AS gcc-tot
-FROM ${llvm_tot} AS llvm-tot
-
-FROM debian:stretch AS base-image
-
-ADD install-packages.sh /tmp/
-RUN /tmp/install-packages.sh && rm /tmp/install-packages.sh
-
-COPY --from=ericwf/gcc:5.5.0 /compiler /opt/gcc-5
-
-FROM base-image as worker-image
-
-COPY --from=gcc-tot /compiler /opt/gcc-tot
-COPY --from=llvm-tot /compiler /opt/llvm-tot
-
-ENV PATH /opt/llvm-tot/bin:$PATH
-
-RUN clang++ --version && echo hello
-RUN g++ --version
-
-
-RUN /opt/gcc-tot/bin/g++ --version
-RUN /opt/llvm-tot/bin/clang++ --version
-RUN /opt/llvm-tot/bin/clang --version
-
-# FIXME(EricWF): remove this once the buildbot's config doesn't clobber the path.
-RUN ln -s /opt/llvm-tot/bin/clang /usr/local/bin/clang
-RUN ln -s /opt/llvm-tot/bin/clang++ /usr/local/bin/clang++
-
-
-ADD run_buildbot.sh /
-CMD /run_buildbot.sh /run/secrets/buildbot-auth

libcxx/utils/docker/debian9/buildbot/buildbot-auth.json

-{
-  "login": "<login>",
-  "password": "<password>"
-}

libcxx/utils/docker/debian9/buildbot/docker-compose.yml

-version: '3.7'
-services:
-  llvm-buildbot-worker:
-    build:
-      context: https://github.com/llvm/llvm-project.git#master:libcxx/utils/docker/debian9/buildbot
-      args:
-        gcc_tot: "ericwf/gcc:9.2.0"
-        llvm_tot: "ericwf/llvm:11.x"
-    image: llvm-buildbot-worker
-    volumes:
-    - /var/run/docker.sock:/var/run/docker.sock
-    secrets:
-    - buildbot-auth
-    logging:
-      driver: gcplogs
-
-secrets:
-  buildbot-auth:
-    file: buildbot-auth.json

libcxx/utils/docker/debian9/buildbot/install-gcloud-agents.sh

-#!/usr/bin/env bash
-
-cd /tmp/
-
-curl -sSO https://dl.google.com/cloudagents/install-monitoring-agent.sh
-sudo bash install-monitoring-agent.sh
-rm install-monitoring-agent.sh
-
-curl -sSO https://dl.google.com/cloudagents/install-logging-agent.sh
-sudo bash install-logging-agent.sh
-rm install-logging-agent.sh

libcxx/utils/docker/debian9/buildbot/install-packages.sh

-#!/usr/bin/env bash
-
-set -x
-set -e
-
-apt-get update && \
-    apt-get install -y --no-install-recommends \
-      buildbot-slave \
-      ca-certificates \
-      gnupg \
-      build-essential \
-      wget \
-      unzip \
-      python \
-      ninja-build \
-      curl \
-      git \
-      gcc-multilib \
-      g++-multilib \
-      libc6-dev \
-      libtool \
-      locales-all \
-      binutils-dev \
-      binutils-gold \
-      software-properties-common \
-      gnupg \
-      apt-transport-https \
-      sudo \
-      bash-completion \
-      vim \
-      jq \
-      systemd \
-      sysvinit-utils \
-      systemd-sysv && \
-  rm -rf /var/lib/apt/lists/*
-
-# Install a recent CMake
-yes | apt-get purge cmake
-wget https://github.com/Kitware/CMake/releases/download/v3.18.2/cmake-3.18.2-Linux-x86_64.sh -O /tmp/install-cmake.sh
-bash /tmp/install-cmake.sh --prefix=/usr --exclude-subdir --skip-license

libcxx/utils/docker/debian9/buildbot/run_buildbot.sh

-#!/usr/bin/env bash
-set -x
-
-readonly BOT_ROOT=/b
-readonly AUTH_FILE=$1
-readonly BOT_ROOT_NAME=$(jq -r ".login" $AUTH_FILE)
-
-systemctl daemon-reload
-service buildslave stop
-mkdir -p /b
-rm -rf /b/*
-service buildslave stop
-
-pushd /tmp/
-
-curl -sSO https://dl.google.com/cloudagents/install-monitoring-agent.sh
-sudo bash install-monitoring-agent.sh
-rm install-monitoring-agent.sh
-
-curl -sSO https://dl.google.com/cloudagents/install-logging-agent.sh
-sudo bash install-logging-agent.sh
-rm install-logging-agent.sh
-
-popd
-
-
-systemctl set-property buildslave.service TasksMax=100000
-
-function setup_numbered_bot() {
-  local BOT_NAME=$1
-  local BOT_DIR=$2
-  mkdir -p $BOT_DIR
-
-  buildslave stop $BOT_DIR
-  chown buildbot $BOT_DIR
-  rm -rf $BOT_DIR/*
-
-  buildslave create-slave --allow-shutdown=signal "$BOT_DIR" "lab.llvm.org:9990" "$BOT_NAME" $(jq -r ".password" $AUTH_FILE)
-
-  echo "Eric Fiselier <[e-mail]>" > $BOT_DIR/info/admin
-
-  echo "Connecting as $1"
-  {
-    uname -a | head -n1
-    cmake --version | head -n1
-    g++ --version | head -n1
-    clang++ --version | head -n1
-    ld --version | head -n1
-    date
-    lscpu
-  } > $BOT_DIR/info/host
-
-
-#echo "SLAVE_RUNNER=/usr/bin/buildslave
-#SLAVE_ENABLED[1]=\"1\"
-#SLAVE_NAME[1]=\"$BOT_NAME\"
-#SLAVE_USER[1]=\"buildbot\"
-#SLAVE_BASEDIR[1]=\"$BOT_DIR\"
-#SLAVE_OPTIONS[1]=\"\"
-#SLAVE_PREFIXCMD[1]=\"\"" > $BOT_DIR/buildslave.cfg
-
-  ls $BOT_DIR/
-  cat $BOT_DIR/buildbot.tac
-}
-
-function try_start_builder {
-  local N=$1
-  local BOT_DIR="$BOT_ROOT/b$N"
-  local BOT_NAME="$BOT_ROOT_NAME$N"
-
-  systemctl daemon-reload
-  service buildslave restart
-  setup_numbered_bot "$BOT_NAME" "$BOT_DIR"
-
-  systemctl daemon-reload
-  service buildslave restart
-
-  chown -R buildbot $BOT_DIR/
-  sudo -u buildbot /usr/bin/buildslave start $BOT_DIR/
-
-  sleep 30
-  cat $BOT_DIR/twistd.log
-  if grep --quiet "slave is ready" $BOT_DIR/twistd.log; then
-    return 0
-  fi
-  if grep --quiet "configuration update complete" $BOT_DIR/twistd.log; then
-    return 0
-  fi
-  if grep "rejecting duplicate slave" $BOT_DIR/twistd.log; then
-    return 1
-  fi
-  echo "Unknown error"
-  cat $BOT_DIR/twistd.log
-  exit 1
-}
-
-for N in `shuf -i 1-5`
-do
-  if try_start_builder $N; then
-    break
-  fi
-  echo "failed to start any buildbot"
-  shutdown now
-done
-
-# GCE can restart instance after 24h in the middle of the build.
-# Gracefully restart before that happen.
-sleep 72000
-while pkill -SIGHUP buildslave; do sleep 5; done;
-shutdown now
-