python-3.x - 没有安装候选者时如何将libpcre3-dev添加到docker image python3.8-slim

Question

我正在为在uwsgi上运行的djangoapp使用Python3.8-slim镜像，但是uwsgi需要libpcre3-dev来构建具有pcre支持的代码。

当我添加RUN apt-get install -y libpcre3 libpcre3-dev

FROM python:3.8-slim

...

# Configure apt
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update \
    && apt-get -y install --no-install-recommends apt-utils 2>&1

...

RUN apt-get install -y libpcre3 libpcre3-dev
RUN pip install uwsgi  # hopefully uwsgi should built with PCRE support now?

到我的dockerfile，我得到
E: Package 'libpcre3-dev' has no installation candidate
如何安装？

编辑:这是完整的Dockerfile:
https://github.com/timberline-secondary/hackerspace/blob/f36cafd4c7d97eb989c37bbc9dfdc9c8ddf126c5/Dockerfile

Answer 1

您会收到此消息，而没有apt-get更新。尝试下面的代码。

RUN apt-get update &&\
 apt-get install -y libpcre3 libpcre3-dev