Codebuild Image for ruby 2.4.1 with ubuntu 16.04 based on https://jonbake.com/blog/2018/08/29/setting-up-codebuild-rails.html

dockerd-entrypoint.sh

#!/bin/sh
set -e

/usr/local/bin/dockerd \
	--host=unix:///var/run/docker.sock \
	--host=tcp://127.0.0.1:2375 \
	--storage-driver=overlay &>/var/log/docker.log &


tries=0
d_timeout=60
until docker info >/dev/null 2>&1
do
	if [ "$tries" -gt "$d_timeout" ]; then
                cat /var/log/docker.log
		echo 'Timed out trying to connect to internal docker host.' >&2
		exit 1
	fi
        tries=$(( $tries + 1 ))
	sleep 1
done

eval "$@"

Dockerfile

# Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Amazon Software License (the "License"). You may not use this file except in compliance with the License.
# A copy of the License is located at
#
#    http://aws.amazon.com/asl/
#
# or in the "license" file accompanying this file.
# This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, express or implied.
# See the License for the specific language governing permissions and limitations under the License.
#

FROM ubuntu:16.04

ENV DOCKER_BUCKET="download.docker.com" \
    DOCKER_VERSION="17.09.0-ce" \
    DOCKER_CHANNEL="stable" \
    DOCKER_SHA256="a9e90a73c3cdfbf238f148e1ec0eaff5eb181f92f35bdd938fd7dab18e1c4647" \
    DIND_COMMIT="3b5fac462d21ca164b3778647420016315289034" \
    DOCKER_COMPOSE_VERSION="1.21.2" \
    GITVERSION_VERSION="3.6.5"

# Install git, SSH, and other utilities
RUN set -ex \
    && echo 'Acquire::CompressionTypes::Order:: "gz";' > /etc/apt/apt.conf.d/99use-gzip-compression \
    && apt-get update \
    && apt install -y apt-transport-https \
    && apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF \
    && echo "deb https://download.mono-project.com/repo/ubuntu stable-trusty main" | tee /etc/apt/sources.list.d/mono-official-stable.list \
    && apt-get update \
    && apt-get install software-properties-common -y --no-install-recommends \
    && apt-add-repository ppa:git-core/ppa \
    && apt-get update \
    && apt-get install git=1:2.* -y --no-install-recommends \
    && git version \
    && apt-get install -y --no-install-recommends openssh-client \
    && mkdir ~/.ssh \
    && touch ~/.ssh/known_hosts \
    && ssh-keyscan -t rsa,dsa -H github.com >> ~/.ssh/known_hosts \
    && ssh-keyscan -t rsa,dsa -H bitbucket.org >> ~/.ssh/known_hosts \
    && chmod 600 ~/.ssh/known_hosts \
    && apt-get install -y --no-install-recommends \
       wget python=2.7.* python2.7-dev=2.7.* fakeroot ca-certificates \
       tar gzip zip autoconf automake \
       bzip2 file g++ gcc imagemagick \
       libbz2-dev libc6-dev libcurl4-openssl-dev libdb-dev \
       libevent-dev libffi-dev libgeoip-dev libglib2.0-dev \
       libjpeg-dev libkrb5-dev liblzma-dev \
       libmagickcore-dev libmagickwand-dev libmysqlclient-dev \
       libncurses5-dev libpng12-dev libpq-dev libreadline-dev \
       libsqlite3-dev libssl-dev libtool libwebp-dev \
       libxml2-dev libxslt1-dev libyaml-dev make \
       patch xz-utils zlib1g-dev unzip curl \
       e2fsprogs iptables xfsprogs xz-utils \
       less groff liberror-perl \
       asciidoc build-essential bzr cvs cvsps docbook-xml docbook-xsl dpkg-dev \
       libdbd-sqlite3-perl libdbi-perl libdpkg-perl libhttp-date-perl \
       libio-pty-perl libserf-1-1 libsvn-perl libsvn1 libtcl8.6 libtimedate-perl \
       libunistring0 libxml2-utils libyaml-perl python-bzrlib python-configobj \
       sgml-base sgml-data subversion tcl tcl8.6 xml-core xmlto xsltproc \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean

# Download and set up GitVersion
RUN set -ex \
    && wget "https://github.com/GitTools/GitVersion/releases/download/v${GITVERSION_VERSION}/GitVersion_${GITVERSION_VERSION}.zip" -O /tmp/GitVersion_${GITVERSION_VERSION}.zip \
    && mkdir -p /usr/local/GitVersion_${GITVERSION_VERSION} \
    && unzip /tmp/GitVersion_${GITVERSION_VERSION}.zip -d /usr/local/GitVersion_${GITVERSION_VERSION} \
    && rm /tmp/GitVersion_${GITVERSION_VERSION}.zip \
    && echo "mono /usr/local/GitVersion_${GITVERSION_VERSION}/GitVersion.exe \$@" >> /usr/local/bin/gitversion \
    && chmod +x /usr/local/bin/gitversion

RUN set -ex \
    && sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list' \
    && wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add - \
    && apt-get update -qq && apt-get install -y postgresql-9.6 \
    && sed -i -- 's/peer/trust/g' /etc/postgresql/9.6/main/pg_hba.conf

# Install Docker
RUN set -ex \
    && curl -fSL "https://${DOCKER_BUCKET}/linux/static/${DOCKER_CHANNEL}/x86_64/docker-${DOCKER_VERSION}.tgz" -o docker.tgz \
    && echo "${DOCKER_SHA256} *docker.tgz" | sha256sum -c - \
    && tar --extract --file docker.tgz --strip-components 1  --directory /usr/local/bin/ \
    && rm docker.tgz \
    && docker -v \
# set up subuid/subgid so that "--userns-remap=default" works out-of-the-box
    && addgroup dockremap \
    && useradd -g dockremap dockremap \
    && echo 'dockremap:165536:65536' >> /etc/subuid \
    && echo 'dockremap:165536:65536' >> /etc/subgid \
    && wget "https://raw.githubusercontent.com/docker/docker/${DIND_COMMIT}/hack/dind" -O /usr/local/bin/dind \
    && curl -L https://github.com/docker/compose/releases/download/${DOCKER_COMPOSE_VERSION}/docker-compose-Linux-x86_64 > /usr/local/bin/docker-compose \
    && chmod +x /usr/local/bin/dind /usr/local/bin/docker-compose \
# Ensure docker-compose works
    && docker-compose version

# Install dependencies by all python images equivalent to buildpack-deps:jessie
# on the public repos.

RUN set -ex \
    && wget "https://bootstrap.pypa.io/2.6/get-pip.py" -O /tmp/get-pip.py \
    && python /tmp/get-pip.py \
    && pip install awscli==1.* \
    && rm -fr /var/lib/apt/lists/* /tmp/* /var/tmp/*

VOLUME /var/lib/docker

COPY dockerd-entrypoint.sh /usr/local/bin/

ENV RUBY_MAJOR="2.4" \
    RUBY_VERSION="2.4.1" \
    RUBY_DOWNLOAD_SHA256="a330e10d5cb5e53b3a0078326c5731888bb55e32c4abfeb27d9e7f8e5d000250" \
    RUBYGEMS_VERSION="2.7.2" \
    BUNDLER_VERSION="1.16.1" \
    GEM_HOME="/usr/local/bundle"

ENV BUNDLE_PATH="$GEM_HOME" \
    BUNDLE_BIN="$GEM_HOME/bin" \
    BUNDLE_SILENCE_ROOT_WARNING=1 \
    BUNDLE_APP_CONFIG="$GEM_HOME"

ENV PATH $BUNDLE_BIN:$PATH

RUN mkdir -p /usr/local/etc \
	&& { \
        echo 'install: --no-document'; \
        echo 'update: --no-document'; \
    } >> /usr/local/etc/gemrc \
    && apt-get update && apt-get install -y --no-install-recommends \
       bison libgdbm-dev ruby \
    && wget "https://cache.ruby-lang.org/pub/ruby/$RUBY_MAJOR/ruby-$RUBY_VERSION.tar.gz" -O /tmp/ruby.tar.gz \
    && echo "$RUBY_DOWNLOAD_SHA256 /tmp/ruby.tar.gz" | sha256sum -c - \
    && mkdir -p /usr/src/ruby \
    && tar -xzf /tmp/ruby.tar.gz -C /usr/src/ruby --strip-components=1 \
    && cd /usr/src/ruby \
	&& { \
             echo '#define ENABLE_PATH_CHECK 0'; \
             echo; \
             cat file.c; \
	   } > file.c.new \
    && mv file.c.new file.c \
    && autoconf \
    && ./configure --disable-install-doc \
    && make -j"$(nproc)" \
    && make install \
    && apt-get purge -y --auto-remove bison libgdbm-dev ruby \
    && cd / \
    && rm -r /usr/src/ruby \
    && gem update --system "$RUBYGEMS_VERSION" \
	&& gem install bundler --version "$BUNDLER_VERSION" \
    && mkdir -p "$GEM_HOME" "$BUNDLE_BIN" \
    && chmod 777 "$GEM_HOME" "$BUNDLE_BIN" \
    && rm -fr /var/lib/apt/lists/* /tmp/* /var/tmp/*

CMD [ "irb" ]