Dockerfile 在 Linux 服务器中不工作，但在 Ubuntu VM 中工作

Question

我有一个 Dockerfile，它在 Ubuntu VM 中运行良好。但是，相同的 Dockerfile 不会在 Linux Server 中构建。

Dockerfile：

FROM python:3.9.7-slim as builder-image
ARG DEBIAN_FRONTEND=noninteractive
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONFAULTHANDLER 1

RUN apt-get update && apt-get install -y --no-install-recommends  python3-dev  gcc libc-dev musl-dev  libffi-dev g++  cargo && \
    apt-get clean && rm -rf /var/lib/apt/lists/*

RUN python3.9 -m venv /home/myuser/venv
ENV PATH="/home/myuser/venv/bin:$PATH"
RUN /home/myuser/venv/bin/pip install --upgrade pip
WORKDIR /home/myuser/venv
COPY /data/requirements.txt requirements.txt
RUN pip3 install --no-cache-dir wheel
RUN pip3 install --no-cache-dir -r requirements.txt



FROM python:3.9.7-slim
RUN useradd --create-home myuser
COPY --from=builder-image /home/myuser/venv /home/myuser/venv
USER myuser
RUN mkdir /home/myuser/code
WORKDIR /home/myuser/code
ENV PYTHONUNBUFFERED=1
ENV VIRTUAL_ENV=/home/myuser/venv
ENV PATH="/home/myuser/venv/bin:$PATH"
ENTRYPOINT ["/bin/bash"]

docker build -t python-docker_14122021 .

Error:

Sending build context to Docker daemon 49.66 kB
Step 1/23 : FROM python:3.9-slim-buster as builder-image
Error parsing reference: "python:3.9-slim-buster as builder-image" is not a valid repository/tag: invalid reference format

Answer 1

服务器上有一个非常旧的docker。您需要至少具有 docker 的 17.06 版本才能支持多阶段构建。