Dockerfile 便利贴

here-documents

换源

COPY <<EOF /etc/apt/sources.list.d/ubuntu.sources
Types: deb
URIs: https://mirrors.tuna.tsinghua.edu.cn/ubuntu
Suites: noble noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg

# 以下安全更新软件源包含了官方源与镜像站配置，如有需要可自行修改注释切换
Types: deb
URIs: https://mirrors.tuna.tsinghua.edu.cn/ubuntu
Suites: noble-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
EOF

RUN

RUN <<EOT bash
  set -ex
  apt-get update
  apt-get install -y vim
EOT

https://docs.docker.com/reference/dockerfile/#here-documents

apt install

RUN apt-get update && \
    apt-get install -y wget --no-install-recommends && \
    rm -rf /var/lib/apt/lists/* && \
    apt-get clean

无人值守

替代文件内容

sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/' /etc/ssh/sshd_config && \