如何在Docker容器中使用matplotlib.pyplot? [英] How can I use matplotlib.pyplot in a docker container?
问题描述
我在名为 deep
的Docker映像中具有特定的Python设置。我曾经运行python代码
I have a certain setting of Python in an docker image named deep
. I used to run python code
docker run --rm -it -v "$PWD":/app -w /app deep python some-code.py
有关信息, -v
和 -w
选项用于将当前路径中的本地文件链接到容器。
For information, -v
and -w
options are to link a local file in the current path to the container.
但是,我不能使用 matplotlib.pyplot
。假设 test.py
是
However, I can't use matplotlib.pyplot
. Let's say test.py
is
import matplotlib.pyplot as plt
plt.plot([1,2], [3,4])
plt.show()
我遇到了此错误。
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 3147, in plot
ax = gca()
File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 928, in gca
return gcf().gca(**kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 578, in gcf
return figure()
File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 527, in figure
**kwargs)
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_tkagg.py", line 84, in new_figure_manager
return new_figure_manager_given_figure(num, figure)
File "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_tkagg.py", line 92, in new_figure_manager_given_figure
window = Tk.Tk()
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1818, in __init__
self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
_tkinter.TclError: no display name and no $DISPLAY environment variable
通过解决方案搜索,我只有一个解决方案。
With solution search, I am having only one solution. I figured out I can do if
$ xauth list
xxxx/unix:0 yyyy 5nsk3hd # copy this list
$ docker run --rm -it -v "$PWD":/app -w /app \
--net=host -e DISPLAY \
-v /tmp/.X11-unix:/tmp/.X11-unix \
deep bash
inside-container$ xauth add xxxx/unix:0 yyyy 5nsk3hd # paste the list
inside-container$ python test.py # now the plot works!!
我的问题是,而不是所有发起 bash $ c $的人c>,设置
xauth
并在Python 内部容器中运行,我可以使用 docker run
,这样我就可以在容器外部运行代码?
My question is, instead of all those launching bash
, setting xauth
, and running Python inside container, can I do such setting with docker run
so that I can just run the code outside of the container?
我尝试过
docker run --rm -it -v "$PWD":/app -w /app \
--net=host -e DISPLAY \
-v /tmp/.X11-unix:/tmp/.X11-unix \
-e "xauth add xxxx/unix:0 yyyy 5nsk3hd" \
deep python test.py
使用-entry
参数,但是它没有用。请帮忙。
using --entry
parameter, but it didn't work. Please help.
推荐答案
有趣的是,我在ROS社区中找到了相当不错且彻底的解决方案。 http://wiki.ros.org/docker/Tutorials/GUI
Interestingly, I found quite nice and thorough solutions in ROS community. http://wiki.ros.org/docker/Tutorials/GUI
对于我的问题,我的最终选择是本教程中的第二种方式:
For my problem, my final choice is the second way in the tutorial:
docker run --rm -it \
--user=$(id -u) \
--env="DISPLAY" \
--workdir=/app \
--volume="$PWD":/app \
--volume="/etc/group:/etc/group:ro" \
--volume="/etc/passwd:/etc/passwd:ro" \
--volume="/etc/shadow:/etc/shadow:ro" \
--volume="/etc/sudoers.d:/etc/sudoers.d:ro" \
--volume="/tmp/.X11-unix:/tmp/.X11-unix:rw" \
deepaul python test.python
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