FROM node:14.2.0-alpine3.11

ENV VERSION=1.5

RUN mkdir -p /opt/app && \
    apk add --no-cache --virtual .download ca-certificates wget && \
    wget https://github.com/cracker0dks/whiteboard/archive/v$VERSION.tar.gz && \
    tar -C /opt/app -xzf v$VERSION.tar.gz && \
    rm v$VERSION.tar.gz && \
    cd /opt/app/whiteboard-$VERSION && \
    npm ci && \
    apk del .download

EXPOSE 8080

ENTRYPOINT ["node", "/opt/app/whiteboard-1.5/server.js", "--mode=production"]