Dockerfile

FROM python:3.6-slim

RUN export DEBIAN_FRONTEND=noninteractive && \
    apt-get update && \
    apt-get -y install bash git curl libxml2 libxslt1.1 xz-utils && \
    rm -rf /var/lib/apt/lists/*

RUN pip install -U flake8 pylint lxml ast-to-xml requests

ARG SHELLCHECK_VERSION=0.8.0
RUN mkdir -p /opt/shellcheck && \
    cd /opt/shellcheck && \
    curl -LO "https://github.com/koalaman/shellcheck/releases/download/v${SHELLCHECK_VERSION}/shellcheck-v${SHELLCHECK_VERSION}.linux.x86_64.tar.xz" && \
    tar -xf *.tar.xz --strip-components=1 && \
    rm *.tar.xz && \
    ln -s /opt/shellcheck/shellcheck /usr/bin