--- /dev/null
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# 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.
+
+# CI docker CPU env
+# tag: v0.62
+FROM ubuntu:18.04
+
+RUN apt-get update --fix-missing
+
+COPY install/ubuntu_install_core.sh /install/ubuntu_install_core.sh
+RUN bash /install/ubuntu_install_core.sh
+
+COPY install/ubuntu1804_install_python_venv.sh /install/ubuntu1804_install_python_venv.sh
+RUN bash /install/ubuntu1804_install_python_venv.sh
+ENV PATH=/opt/tvm-venv/bin:$PATH
+
+COPY install/ubuntu_install_python_package.sh /install/ubuntu_install_python_package.sh
+RUN bash /install/ubuntu_install_python_package.sh
+
+COPY install/ubuntu1804_install_llvm.sh /install/ubuntu1804_install_llvm.sh
+RUN bash /install/ubuntu1804_install_llvm.sh
+
+# Rust env (build early; takes a while)
+COPY install/ubuntu_install_rust.sh /install/ubuntu_install_rust.sh
+RUN bash /install/ubuntu_install_rust.sh
+ENV RUSTUP_HOME /opt/rust
+ENV CARGO_HOME /opt/rust
+
+# AutoTVM deps
+COPY install/ubuntu_install_redis.sh /install/ubuntu_install_redis.sh
+RUN bash /install/ubuntu_install_redis.sh
+
+# ANTLR deps
+COPY install/ubuntu_install_java.sh /install/ubuntu_install_java.sh
+RUN bash /install/ubuntu_install_java.sh
+
+# TFLite deps
+COPY install/ubuntu_install_tflite.sh /install/ubuntu_install_tflite.sh
+RUN bash /install/ubuntu_install_tflite.sh
+
+# TensorFlow deps
+COPY install/ubuntu_install_tensorflow.sh /install/ubuntu_install_tensorflow.sh
+RUN bash /install/ubuntu_install_tensorflow.sh
+
+# QEMU deps
+COPY install/ubuntu_install_qemu.sh /install/ubuntu_install_qemu.sh
+RUN bash /install/ubuntu_install_qemu.sh
+
+# Zephyr SDK deps
+COPY install/ubuntu_install_zephyr.sh /install/ubuntu_install_zephyr.sh
+RUN bash /install/ubuntu_install_zephyr.sh
+ENV ZEPHYR_BASE=/opt/zephyrproject/zephyr
--- /dev/null
+#!/bin/bash
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# 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 -e
+set -u
+set -o pipefail
+
+sudo sed -i '/deb-src/s/^# //' /etc/apt/sources.list
+apt update
+apt-get -y build-dep qemu
+
+gpg --keyserver keys.gnupg.net --recv-keys 0x3353C9CEF108B584
+cat <<EOF | gpg --dearmor >qemu-5.1.0.tar.xz.sig
+-----BEGIN PGP ARMORED FILE-----
+Comment: Use "gpg --dearmor" for unpacking
+
+iQEzBAABCgAdFiEEzqzJ4VU066u4LT+gM1PJzvEItYQFAl8zEnAACgkQM1PJzvEI
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+p5ez/+2k4VAIwIQoP5DoO06waLBffvLIAdPPKYsx71K67OoGG2svc7duC/+5qf1x
+8FBFJX9b4ft0tr/cwpVdq8dr/VWqQg==
+=hCS7
+-----END PGP ARMORED FILE-----
+EOF
+curl -OLs https://download.qemu.org/qemu-5.1.0.tar.xz
+gpg --verify qemu-5.1.0.tar.xz.sig
+
+tar -xf qemu-5.1.0.tar.xz
+cd qemu-5.1.0
+./configure --target-list=aarch64-softmmu,arm-softmmu,i386-softmmu,riscv32-softmmu,riscv64-softmmu,x86_64-softmmu
+make -j2
+sudo make install
--- /dev/null
+#!/bin/bash
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# 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 -e
+set -u
+set -o pipefail
+set -x
+
+export DEBIAN_FRONTEND=noninteractive
+export TZ=Etc/UTC
+sudo ln -snf /usr/share/zoneinfo/$TZ /etc/localtime
+echo $TZ > /etc/timezone
+
+sudo apt-get install -y --no-install-recommends \
+ libsdl2-dev ca-certificates gnupg software-properties-common wget \
+ git cmake ninja-build gperf \
+ ccache dfu-util device-tree-compiler wget \
+ python3-dev python3-pip python3-setuptools python3-tk python3-wheel python3-venv \
+ xz-utils file make gcc gcc-multilib g++-multilib apt-transport-https
+
+cat <<EOF | gpg --dearmor - | sudo tee /etc/apt/trusted.gpg.d/kitware.gpg >/dev/null
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+-----END PGP PUBLIC KEY BLOCK-----
+
+EOF
+
+sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ bionic main'
+sudo apt-get update
+
+sudo apt-get install -y cmake
+
+#mkdir /opt/west
+#python3.6 -mvenv /opt/west # NOTE: include .6 to make a python3.6 link for west/cmake.
+#/opt/west/bin/pip3 install west
+pip3 install west
+
+#cat <<EOF | tee /usr/local/bin/west >/dev/null
+##!/bin/bash -e
+#
+#source /opt/west/bin/activate
+#export ZEPHYR_BASE=/opt/zephyrproject/zephyr
+#west "\$@"
+#EOF
+#chmod a+x /usr/local/bin/west
+
+west init --mr v2.4.0 /opt/zephyrproject
+cd /opt/zephyrproject
+west update
+
+# This step is required because of the way docker/bash.sh works. It sets the user home directory to
+# /workspace (or the TVM root, anyhow), and this means that zephyr expects a ~/.cache directory to be
+# present *in the TVM project root*. Since we don't intend to add one to avoid dirtying the repo
+# tree, we need to populate the zephyr fallback cache directory and ensure it's writable. Cache
+# artifacts aren't intended to be saved into the docker image.
+mkdir zephyr/.cache
+chmod o+rwx zephyr/.cache
+
+west zephyr-export
+
+#/opt/west/bin/pip3 install -r /opt/zephyrproject/zephyr/scripts/requirements.txt
+pip3 install -r /opt/zephyrproject/zephyr/scripts/requirements.txt
+
+SDK_VERSION=0.11.3
+wget --no-verbose \
+ https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v${SDK_VERSION}/zephyr-sdk-${SDK_VERSION}-setup.run
+chmod +x zephyr-sdk-${SDK_VERSION}-setup.run
+./zephyr-sdk-${SDK_VERSION}-setup.run -- -d /opt/zephyr-sdk