# This dockerfile is used to test containerd within a container
#
# usage:
# 1.) docker build -t containerd-test -f Dockerfile.test ../
# 2.) docker run -it --privileged -v /tmp:/tmp --tmpfs /var/lib/containerd-test containerd-test  bash
# 3.) $ make binaries install test
#
# Use the RUNC_VERSION build-arg to build with a custom version of runc, for example,
# to build runc v1.0.0-rc94, use:
#
# docker build -t containerd-test --build-arg RUNC_VERSION=v1.0.0-rc94 -f Dockerfile.test ../

# ------------------------------------------------------------------------------
# Public stages:
# "integration": for running integration tests:
#   docker build -t containerd-test -f Dockerfile.test --target integration ../
#   docker run --privileged containerd-test
#
# "cri-integration": for running cri-integration tests:
#   docker build -t containerd-test -f Dockerfile.test --target cri-integration ../
#   docker run --privileged --sysctl net.ipv6.conf.all.disable_ipv6=0 containerd-test
#
# "critest: for running critest:
#   docker build -t containerd-test -f Dockerfile.test --target critest ../
#   docker run --privileged --sysctl net.ipv6.conf.all.disable_ipv6=0 containerd-test
#
# "cri-in-userns": for running critest with "CRI-in-UserNS" mode; needs Rootless Docker/Podman/nerdctl:
#   docker build -t containerd-test -f Dockerfile.test --target cri-in-userns ../
#   docker run --privileged containerd-test
# ------------------------------------------------------------------------------

ARG GOLANG_VERSION=1.20.4
ARG GOLANG_IMAGE=golang

FROM ${GOLANG_IMAGE}:${GOLANG_VERSION} AS golang

# Install runc
FROM golang AS runc
RUN apt-get update && apt-get install -y --no-install-recommends \
    libseccomp-dev \
    && rm -rf /var/lib/apt/lists/*

COPY script/setup/runc-version script/setup/install-runc ./
# Allow overriding the version of runc to install through build-args
ARG RUNC_VERSION
ARG GOPROXY=direct
ARG DESTDIR=/build
RUN ./install-runc

FROM golang AS build-env
RUN apt-get update && apt-get install -y --no-install-recommends \
    btrfs-progs \
    libseccomp-dev \
    xfsprogs \
    && rm -rf /var/lib/apt/lists/*
RUN mkdir -p /go/src/github.com/containerd/containerd
WORKDIR /go/src/github.com/containerd/containerd

FROM golang AS cni
ENV DESTDIR=/build
COPY script/setup/install-cni go.mod /
RUN DESTDIR=/build /install-cni

FROM golang AS critools
ARG DESTDIR=/build
COPY script/setup/install-critools script/setup/critools-version  ./
RUN GOBIN=$DESTDIR/usr/local/bin ./install-critools

# integration stage is for running integration tests.
FROM build-env AS integration
RUN apt-get update && apt-get install -y --no-install-recommends \
    lsof \
    && rm -rf /var/lib/apt/lists/*
COPY --from=runc       /build/ /
COPY contrib/Dockerfile.test.d/docker-entrypoint.sh /docker-entrypoint.sh
COPY . .
RUN make BUILDTAGS="no_btrfs no_devmapper" binaries install
VOLUME /tmp
# TestMain wants to unlink /var/lib/containerd-test, so the entire /var/lib has to be volumified.
VOLUME /var/lib
# The entrypoint script is needed for nesting cgroup v2.
ENTRYPOINT ["/docker-entrypoint.sh"]
CMD ["make", "integration"]

# cri-integration stage is for running cri-integration tests.
FROM integration AS cri-integration
RUN apt-get update && apt-get install -y --no-install-recommends \
    sudo iptables \
    && rm -rf /var/lib/apt/lists/*
COPY --from=cni                /build/ /
COPY --from=critools           /build/ /
RUN make BUILDTAGS="no_btrfs no_devmapper" bin/cri-integration.test
# install-failpoint-binaries cannot be easily executed in a substage as it does not support custom DESTDIR.
RUN ./script/setup/install-failpoint-binaries
# The test scripts need these env vars to be explicitly set
ENV GITHUB_WORKSPACE=""
ENV ENABLE_CRI_SANDBOXES=""
ENV CONTAINERD_RUNTIME="io.containerd.runc.v2"
CMD ["make", "cri-integration"]

# critest stage is for running critest.
FROM cri-integration AS critest
# critest wants to create mounts under this directory, so it has to be volumified.
VOLUME /go/src/github.com/containerd/containerd
ENV TEST_RUNTIME="io.containerd.runc.v2"
CMD ["script/critest.sh", "/tmp"]

# cri-in-userns stage is for testing "CRI-in-UserNS", which should be used in conjunction with
# "Kubelet-in-UserNS": https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/2033-kubelet-in-userns-aka-rootless
# This feature is mostly expected to be used for `kind` and `minikube`.
#
# Requires Rootless Docker/Podman/nerdctl with cgroup v2 delegation: https://rootlesscontaine.rs/getting-started/common/cgroup2/
# (Rootless Docker/Podman/nerdctl prepares the UserNS, so we do not need to create UserNS by ourselves)
FROM critest AS cri-in-userns
COPY contrib/Dockerfile.test.d/cri-in-userns/etc_containerd_config.toml /etc/containerd/config.toml
COPY contrib/Dockerfile.test.d/cri-in-userns/docker-entrypoint.sh       /docker-entrypoint.sh
ENTRYPOINT ["/docker-entrypoint.sh"]
# Skip "runtime should support unsafe sysctls": `container init caused:  write sysctl key fs.mqueue.msg_max: open /proc/sys/fs/mqueue/msg_max: permission denied`
# Skip "runtime should support safe sysctls": `container init caused: write sysctl key kernel.shm_rmid_forced: open /proc/sys/kernel/shm_rmid_forced: permission denied`
# Skip "should allow privilege escalation when (NoNewPrivis is) false": expected log "Effective uid: 0\n" (stream="stdout") not found in logs [{timestamp:{wall:974487519 ext:63761339984 loc:<nil>} stream:stdout log:Effective uid: 1000) }]
CMD ["critest", "--ginkgo.skip=should support unsafe sysctls|should support safe sysctls|should allow privilege escalation when false"]

# Install proto3
FROM golang AS proto3
ARG DESTDIR=/build
RUN apt-get update && apt-get install -y --no-install-recommends \
    autoconf \
    automake \
    g++ \
    libtool \
    unzip \
    && rm -rf /var/lib/apt/lists/*

COPY script/setup/install-protobuf install-protobuf
RUN ./install-protobuf \
    && mkdir -p $DESTDIR/usr/local/bin $DESTDIR/usr/local/include \
    && mv /usr/local/bin/protoc $DESTDIR/usr/local/bin/protoc \
    && mv /usr/local/include/google $DESTDIR/usr/local/include/google

FROM build-env AS dev
COPY --from=proto3 /build/ /
COPY --from=runc   /build/ /
COPY . .