docker - 在Ubuntu 16.04 docker image : '/etc/resolv.conf' : Device or resource busy中进行apt-get install

Question

从相当原始的Ubuntu 16.04镜像中运行apt-get install时，出现以下错误消息:

ln: cannot remove '/etc/resolv.conf': Device or resource busy
dpkg: error processing package resolvconf (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 resolvconf

不过，这些软件包似乎已正确安装。如何解决？

我的Dockerfile看起来像这样:

FROM ubuntu:16.04
MAINTAINER Me Myself <me@myself.com>
RUN apt-get update && apt-get install -y git nano 
RUN apt-get upgrade -y

# set the timezone. Note: there is an Ubuntu 16.04 bug which
# requires this to be done this way: 
# http://stackoverflow.com/questions/40234847/docker-timezone-in-ubuntu-16-04-image/40235306#40235306
RUN ln -fs /usr/share/zoneinfo/Europe/Berlin /etc/localtime && dpkg-reconfigure -f noninteractive tzdata

RUN locale-gen en_US en_US.UTF-8 de_DE.UTF-8
ENV PATH="/opt/xyz/bin:${PATH}"

Answer 1

如https://github.com/moby/moby/issues/1297中所述，您可以将以下行添加到Dockerfile中:

RUN echo "resolvconf resolvconf/linkify-resolvconf boolean false" | debconf-set-selections

这样可以在容器内安装 resolvconf。