换镜像源
Ubuntu
RUN sed -i 's/archive.ubuntu.com/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list
Alpine
RUN sed -i 's/http://dl-cdn.alpinelinux.org/https://mirrors.tuna.tsinghua.edu.cn/g' /etc/apk/repositories
移除软件包缓存
Ubuntu
RUN rm -vrf /var/lib/apt/lists/*
Alpine
RUN rm -vrf /var/cache/apk/* &&
rm -vrf /var/lib/apk/* &&
rm -vrf /etc/apk/cache/*
常用软件的安装使用方式
ping
apt install -yqq inetutils-ping
vnc for firefox
RUN apt update && apt install x11vnc xufb
RUN mkdir /.vnc
RUN x11vnc -storepasswd pass ~/.vnc/passwd
RUN bash -c 'echo "firefox" >> /.bashrc
EXPOSE 5900
CMD ["x11vnc", "-forever", "-usepw", "-create"]
ssh取消pam登陆
RUN sed -ri 's/session required pam_loginuid.so/#session required pam_loginuid.so/g' /etc/pam.d/sshd
debian的非交互式操作
ENV DEBIAN_FRONTEND noninteractive
apache httpd
RUN exec apache2 -D FOREGROUND
以新用户身份运行
RUN adduser --disabled-login user
RUN su user -c 'command'