运行添加组/添加用户。得到：Optionsisambiguous(shell,system)错误

我正在 Dockerising 我的第一个 Flask 应用程序并遵循在线指南，但在Dockerfile.prod.

RUN addgroup -S app && adduser -S app -G app

我收到错误 Option s is ambiguous (shell, system)

我遇到了这个 SO 帖子并尝试了接受的答案（几乎相同）：

RUN addgroup -S appgroup && adduser -S appuser -G appgroup

同样的结果。我试过指定--shelland --system，--group而是得到错误addgroup: Only one or two names allowed.

无论我尝试什么，我都会收到以下错误：
Option s is ambiguous (shell, system)
Option g is ambiguous (gecos, gid, group)

我在 Windows 上（使用 Docker，而不是 Docker Windows）。不确定是不是这个问题。但我找不到解决办法。

Dockerfile.prod

FROM python:3.8.1-slim-buster as builder

# set work directory
WORKDIR /usr/src/app

# set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# install system dependencies
RUN apt-get update && 
    apt-get install -y --no-install-recommends gcc

# lint
RUN pip install --upgrade pip
RUN pip install flake8
COPY . /usr/src/app/
RUN flake8 --ignore=E501,F401,E722 .

# install python dependencies
COPY ./requirements.txt .
# COPY requirements .

RUN pip wheel --no-cache-dir --no-deps --wheel-dir /usr/src/app/wheels -r requirements.txt
# RUN pip wheel --no-cache-dir --no-deps --wheel-dir /usr/src/app/wheels -r requirements/prod.txt

# pull official base image
FROM python:3.8.1-slim-buster

# create directory for the app user
RUN mkdir -p /home/app

# create the app user
RUN addgroup -S app && adduser -S app -G app

# create the appropriate directories
ENV HOME=/home/app
ENV APP_HOME=/home/app/web
RUN mkdir $APP_HOME
WORKDIR $APP_HOME

# install dependencies
RUN apt-get update && apt-get install -y --no-install-recommends netcat
COPY --from=builder /usr/src/app/wheels /wheels

COPY --from=builder /usr/src/app/requirements.txt .
# COPY --from=builder /usr/src/app/requirements/common.txt .
# COPY --from=builder /usr/src/app/requirements/prod.txt .

RUN pip install --upgrade pip
RUN pip install --no-cache /wheels/*

# copy entrypoint-prod.sh
COPY ./entrypoint.prod.sh $APP_HOME

# copy project
COPY . $APP_HOME

# chown all the files to the app user
RUN chown -R app:app $APP_HOME

# change to the app user
USER app

# run entrypoint.prod.sh
ENTRYPOINT ["/home/app/web/entrypoint.prod.sh"]

回答

RUN adduser --system --group app