FROM alpine MAINTAINER b4tman ENV SQUID_CONFIG_FILE=/etc/squid/squid.conf COPY docker-entrypoint.sh / RUN apk add --no-cache squid &&\ chmod 755 /docker-entrypoint.sh ENTRYPOINT ["/docker-entrypoint.sh"] VOLUME ["/var/cache/squid"] EXPOSE 3128/tcp CMD ["squid"]