Dockerfile

FROM python:3.8.1-slim-buster

RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    git \
    libxml2-dev \
    libxslt1-dev \
    nodejs \
    ruby \
    ruby-dev \
    unzip \
    xz-utils \
    zlib1g-dev && \
    apt-get clean && \
    rm -rf /var/lib/apt

# Use specific version of shellcheck. It's useful to keep
# this in sync with the version in Homebrew so macOS developer
# workstations have the same version as this Docker image.
ARG SHELLCHECK_VERSION=0.6.0
RUN mkdir /tmp/shellcheck && \
    cd /tmp/shellcheck && \
    curl -# -O "https://storage.googleapis.com/shellcheck/shellcheck-v${SHELLCHECK_VERSION}.linux.x86_64.tar.xz" && \
    tar --xz -xvf shellcheck-v"${SHELLCHECK_VERSION}".linux.x86_64.tar.xz && \
    cp shellcheck-v"${SHELLCHECK_VERSION}"/shellcheck /usr/bin/ && \
    rm -rf /tmp/shellcheck

ARG TERRAFORM_VERSION=0.10.7
RUN mkdir -p /tmp/terraform && \
    cd /tmp/terraform && \
    curl -# -o terraform.zip https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_linux_amd64.zip && \
    unzip terraform.zip && \
    mv terraform /usr/bin && \
    rm -rf /tmp/terraform

ARG TERRAGRUNT_VERSION=0.17.4
RUN mkdir /tmp/terragrunt && \
    cd /tmp/terragrunt && \
    curl -# -L -o terragrunt https://github.com/gruntwork-io/terragrunt/releases/download/v${TERRAGRUNT_VERSION}/terragrunt_linux_amd64 && \
    chmod +x terragrunt && \
    mv terragrunt /usr/bin && \
    rm -rf /tmp/terragrunt

RUN pip install pre-commit==1.21.0

ENTRYPOINT ["pre-commit"]