FROM docker.io/library/node:21.7.1-alpine3.19 AS build ARG MARKDOWNLINT_VERSION=master RUN set -ex && \ apk update && \ apk upgrade && \ apk add --no-cache git RUN git clone --branch ${MARKDOWNLINT_VERSION} https://github.com/igorshubovych/markdownlint-cli /markdownlint && \ cd /markdownlint && \ npm install --production && \ npm install --global WORKDIR /work RUN ln -fs /work /workspace ENTRYPOINT [ "/usr/local/bin/markdownlint" ]