Dockerfile - 用于切换主目录的 Docker 指令

Question

对于下面的 dockerfile:

FROM buildpack-deps:buster

RUN groupadd -r someteam --gid=1280 && useradd -r -g someteam --uid=1280 --create-home --shell /bin/bash someteam

# Update and allow for apt over HTTPS
RUN apt-get update && \
  apt-get install -y apt-utils
RUN apt-get install -y apt-transport-https
RUN apt update -y 
RUN apt install python3-pip -y

# switch user from 'root' to ‘someteam’ and also to the home directory that it owns 
USER someteam

RUN pwd 

---

USER 只更改用户而不是主目录

编辑:

Step 11/14 : WORKDIR $HOME
cannot normalize nothing

如何将主目录更改为/home/someteam？

Answer 1

您可以使用 dockerfile 中的 WORKDIR 更改用户目录，这将成为工作目录。因此，无论何时创建容器，工作目录都将是传递给 Dockerfile 中的 WORKDIR 指令的目录。

工作目录

WORKDIR 指令的 Dockerfile 引用

For clarity and reliability, you should always use absolute paths for your WORKDIR. Also, you should use WORKDIR instead of proliferating instructions like RUN cd … && do-something, which are hard to read, troubleshoot, and maintain.

FROM buildpack-deps:buster

RUN groupadd -r someteam --gid=1280 && useradd -r -g someteam --uid=1280 --create-home --shell /bin/bash someteam

# Update and allow for apt over HTTPS
RUN apt-get update && \
  apt-get install -y apt-utils
RUN apt-get install -y apt-transport-https
RUN apt update -y 
RUN apt install python3-pip -y

# switch user from 'root' to ‘someteam’ and also to the home directory that it owns 
USER someteam
WORKDIR /home/someteam

使用 $HOME 会导致错误。

When you use the USER directive, it affects the userid used to start new commands inside the container.Your best bet is to either set ENV HOME /home/aptly in your Dockerfile, which will work dockerfile-home-is-not-working-with-add-copy-instructions