FROM thegeeklab/alpine

LABEL maintainer="Robert Kaussow <mail@geeklabor.de>" \
    org.label-schema.name="vNu" \
    org.label-schema.vcs-url="https://gitea.rknet.org/docker/vnu" \
    org.label-schema.vendor="Robert Kaussow" \
    org.label-schema.schema-version="1.0"

ARG BUILD_VERSION
ENV VALIDATOR_VERSION="${BUILD_VERSION:-20.6.30}"

ADD overlay/ /

RUN apk add --update --no-cache --virtual .build-deps libarchive-tools curl && \
    apk --update add openjdk8 && \
    mkdir -p /var/www/app && \
    VALIDATOR_VERSION="${VALIDATOR_VERSION##v}" && \
    echo "Installing v.Nu Validator version '${VALIDATOR_VERSION}' ..." && \
    curl -SsL "https://github.com/validator/validator/releases/download/${VALIDATOR_VERSION}/vnu.jar_${VALIDATOR_VERSION}.zip" | \
      bsdtar -xf - -C /var/www/app/ --strip-components=1 dist/vnu.jar && \
    apk del .build-deps && \
    rm -rf /var/cache/apk/* && \
    rm -rf /tmp/* && \
    rm -rf /root/.cache/

WORKDIR /var/www/app

USER root
CMD []
ENTRYPOINT ["/bin/vnu"]