FROM adoptopenjdk/openjdk16:alpine-jre AS base-core ENV JAVA_HOME="/usr/lib/jvm/default-jvm/" RUN apk add --update ttf-dejavu ENV PATH=$PATH:${JAVA_HOME}/bin FROM base-core RUN mkdir /lc-core COPY target/scala-2.13/LibreCaptcha.jar /lc-core WORKDIR /lc-core RUN mkdir data/ EXPOSE 8888 CMD [ "java", "-jar", "LibreCaptcha.jar" ]