docker 启动空容器

FROM registry.cn-hangzhou.aliyuncs.com/xxxxxx/dotnet/aspnet:5.0
WORKDIR /app
COPY ./xxxxxx .
ENV ASPNETCORE_ENVIRONMENT QA
EXPOSE 30015

ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

CMD ["echo", "hello"]
CMD ["tail", "-f", "/dev/null"]