docker bashrc文件的合理配置方案详解

FROM ubuntu:24.04
# 可选：装点补全
RUN apt-get update && apt-get install -y bash-completion && rm -rf /var/lib/apt/lists/*
# 复制你为容器准备的 rc（比如放在同目录的 docker.bashrc）
COPY docker.bashrc /root/.bashrc
SHELL ["/bin/bash", "-lc"]

docker build -t my-ubuntu .
docker run -it --name u1 my-ubuntu bash

# 假设准备了一份 /path/to/container.bashrc
docker run -it \
  -v /path/to/container.bashrc:/root/.bashrc:ro \
  ubuntu:24.04 bash

services:
  dev:
    image: ubuntu:24.04
    volumes:
      - /path/to/container.bashrc:/root/.bashrc:ro
    command: bash

docker run -it \
  -e HOME=/home/dev -w /home/dev \
  -v /some/project:/work \
  ubuntu:24.04 bash
# 首次进入后创建容器专用 rc
cp /etc/skel/.bashrc ~/.bashrc  # 或者自己写一份

# ~/.bashrc（共享）
is_in_docker=false
if [ -f /.dockerenv ] || grep -qa "docker" /proc/1/cgroup 2>/dev/null; then
  is_in_docker=true
fi
if $is_in_docker; then
  # 容器专用设置
  export PS1='(ctr) \u@\h:\w\$ '
  alias ll='ls -alF --color=auto'
  # 也可以把容器专用内容拆到一个文件
  [ -f ~/.bashrc.d/docker.rc ] && source ~/.bashrc.d/docker.rc
else
  # 宿主机专用设置
  export PS1='\u@\h:\w\$ '
  [ -f ~/.bashrc.d/host.rc ] && source ~/.bashrc.d/host.rc
fi

docker exec -it <container> bash --noprofile --norc