1#===----------------------------------------------------------------------===##
2#
3# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4# See https://llvm.org/LICENSE.txt for license information.
5# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6#
7#===----------------------------------------------------------------------===##
8
9#
10# This Dockerfile describes the base image used to run the various libc++
11# build bots. By default, the image runs the Buildkite Agent, however one
12# can also just start the image with a shell to debug CI failures.
13#
14# To start a Buildkite Agent, run it as:
15#   $ docker run --env-file <secrets> -it $(docker build -q libcxx/utils/ci)
16#
17# The environment variables in `<secrets>` should be the ones necessary
18# to run a BuildKite agent.
19#
20# If you're only looking to run the Docker image locally for debugging a
21# build bot, see the `run-buildbot-container` script located in this directory.
22#
23# A pre-built version of this image is maintained on DockerHub as ldionne/libcxx-builder.
24# To update the image, rebuild it and push it to ldionne/libcxx-builder (which
25# will obviously only work if you have permission to do so).
26#
27#   $ docker build -t ldionne/libcxx-builder libcxx/utils/ci
28#   $ docker push ldionne/libcxx-builder
29#
30
31FROM ubuntu:focal
32
33# Make sure apt-get doesn't try to prompt for stuff like our time zone, etc.
34ENV DEBIAN_FRONTEND=noninteractive
35
36# This dummy command is meant to be edited from time to time, which causes the
37# CI builders to rebuild their copy of the Docker image. This is not a great
38# solution, however without that, the CI builders will keep the same cached
39# Docker image forever.
40RUN echo 6
41
42RUN apt-get update && apt-get install -y bash curl
43
44# Install various tools used by the build or the test suite
45RUN apt-get update && apt-get install -y ninja-build python3 python3-sphinx python3-distutils git gdb
46
47# Locales for gdb and localization tests
48RUN apt-get update && apt-get install -y language-pack-en language-pack-fr \
49                                         language-pack-ru language-pack-zh-hans
50# These two are not enabled by default so generate them
51RUN printf "fr_CA ISO-8859-1\ncs_CZ ISO-8859-2" >> /etc/locale.gen
52RUN mkdir /usr/local/share/i1en/
53RUN printf "fr_CA ISO-8859-1\ncs_CZ ISO-8859-2" >> /usr/local/share/i1en/SUPPORTED
54RUN locale-gen
55
56# Install Clang <latest>, <latest-1> and ToT, which are the ones we support.
57ENV LLVM_LATEST_VERSION=13
58RUN apt-get update && apt-get install -y lsb-release wget software-properties-common
59RUN wget https://apt.llvm.org/llvm.sh -O /tmp/llvm.sh
60RUN bash /tmp/llvm.sh $(($LLVM_LATEST_VERSION - 1)) # previous release
61RUN bash /tmp/llvm.sh $LLVM_LATEST_VERSION          # latest release
62RUN bash /tmp/llvm.sh $(($LLVM_LATEST_VERSION + 1)) # current ToT
63
64# Make the ToT Clang the "default" compiler on the system
65RUN ln -fs /usr/bin/clang++-$(($LLVM_LATEST_VERSION + 1)) /usr/bin/c++ && [ -e $(readlink /usr/bin/c++) ]
66RUN ln -fs /usr/bin/clang-$(($LLVM_LATEST_VERSION + 1)) /usr/bin/cc && [ -e $(readlink /usr/bin/cc) ]
67
68# Install clang-format
69RUN apt-get install -y clang-format-$LLVM_LATEST_VERSION
70RUN ln -s /usr/bin/clang-format-$LLVM_LATEST_VERSION /usr/bin/clang-format && [ -e $(readlink /usr/bin/clang-format) ]
71RUN ln -s /usr/bin/git-clang-format-$LLVM_LATEST_VERSION /usr/bin/git-clang-format && [ -e $(readlink /usr/bin/git-clang-format) ]
72
73# Install the most recent GCC
74ENV GCC_LATEST_VERSION=11
75RUN add-apt-repository ppa:ubuntu-toolchain-r/test
76RUN apt-get update && apt install -y gcc-$GCC_LATEST_VERSION g++-$GCC_LATEST_VERSION
77
78# Install a recent CMake
79RUN wget https://github.com/Kitware/CMake/releases/download/v3.21.1/cmake-3.21.1-linux-x86_64.sh -O /tmp/install-cmake.sh
80RUN bash /tmp/install-cmake.sh --prefix=/usr --exclude-subdir --skip-license
81RUN rm /tmp/install-cmake.sh
82
83# Change the user to a non-root user, since some of the libc++ tests
84# (e.g. filesystem) require running as non-root. Also setup passwordless sudo.
85RUN apt-get update && apt-get install -y sudo
86RUN echo "ALL ALL = (ALL) NOPASSWD: ALL" >> /etc/sudoers
87RUN useradd --create-home libcxx-builder
88USER libcxx-builder
89WORKDIR /home/libcxx-builder
90
91# Install the Buildkite agent and dependencies. This must be done as non-root
92# for the Buildkite agent to be installed in a path where we can find it.
93RUN bash -c "$(curl -sL https://raw.githubusercontent.com/buildkite/agent/main/install.sh)"
94ENV PATH="${PATH}:/home/libcxx-builder/.buildkite-agent/bin"
95RUN echo "tags=\"queue=libcxx-builders,arch=$(uname -m),os=linux\"" >> "/home/libcxx-builder/.buildkite-agent/buildkite-agent.cfg"
96
97# By default, start the Buildkite agent (this requires a token).
98CMD buildkite-agent start
99