Xvfb＆amp; Docker - 无法打开显示

Question

我需要使用firefox运行XVFB和docker，但无法让它们一起工作

这是我的Dockerfile：

FROM abevoelker/ruby:latest # based on ubuntu
ENV TERM linux
RUN apt-get update && apt-get install -y .....

ENV DISPLAY :99

# Install Xvfb init script
ADD xvfb_init /etc/init.d/xvfb # default xvfb init.d
RUN chmod a+x /etc/init.d/xvfb

CMD ["firefox"]

我从Firefox获得的错误消息是

 Error: cannot open display: :99

Answer 1

I solved this by writing a startup script which will:

1. start xvfb
2. start firefox

Executing the script via CMD allows the proper sequence of commands to run on container startup.

Dockerfile

...
ENV DISPLAY :99

ADD run.sh /run.sh
RUN chmod a+x /run.sh

CMD /run.sh

run.sh

Xvfb :99 -screen 0 640x480x8 -nolisten tcp &
firefox