ARG BASE_IMAGE="nginx" FROM ${BASE_IMAGE} # Install groovy ENV GROOVY_HOME=/opt/groovy ENV GROOVY_VERSION=4.0.9 # Install ping and ip RUN apt update && \ apt install iproute2 && \ apt install iputils-ping COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh RUN chmod +x /usr/local/bin/docker-entrypoint.sh && \ ln -s /usr/local/bin/docker-entrypoint.sh / ENTRYPOINT [ "docker-entrypoint.sh" ] CMD [ "app" ]