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使用Docker镜像快速搭建moviepy环境

前言：之前有不少同学说搭建moviepy环境失败了，大部分是卡在ffmpeg自动下载的步骤了，原因在于从国外下载ffmpeg。当然有办法解决：可以手动下载，然后放在~/.imageio/ffmpeg目录下。

ucsheep@ucsheep-B250M-D2V:~/.imageio/ffmpeg$ ll 总用量 44864 drwxrwxr-x 2 ucsheep ucsheep 4096 8月 21 10:44 ./ drwxrwxr-x 3 ucsheep ucsheep 4096 8月 14 08:54 ../ -rwxrw-r-- 1 ucsheep ucsheep 45929032 8月 21 10:44 ffmpeg-linux64-v3.3.1*

但是，其实我这边最开始就直接使用的是moviepy的docker镜像，很方便。也不会遇到上述的情况。那么，在那里可以买的到呢？

有两种办法，一种是通过Dockerfile构建，一种是直接在Docker Hub寻找有么有现成的镜像。

注意：进行以下操作的首要前提是，您的电脑已经安装Docker

1.Docker Hub拉取镜像

首先，查找镜像

ucsheep@ucsheep-B250M-D2V:~$ docker search moviepy NAME DESCRIPTION STARS OFFICIAL AUTOMATED dkarchmervue/moviepy Image for moviepy, with latest Python 3.4, l… 1 [OK] jdauphant/moviepy 0 [OK] mentlsve/anaconda3-opencv-moviepy Anaconda3 (Python 3.5) with opencv and movie… 0 srid/moviepy 0 [OK] mbeacom/moviepy 0 jacquesvdm/moviepy Image that contains PHP and MoviePy 0 hongyusir/python-moviepy docker image with python, pil and moviepy in… 0 ib5k/moviepy 0 screencom/moviepy 0 verynb/moviepy 0 hongyusir/mnpp mongo, nodejs and python together, and with … 0 lucasrodesg/deepo Modified from ufoym/deepo. Incorporates pyth… 0

然后，选择第一个，拉取镜像，创建一个容器

ucsheep@ucsheep-B250M-D2V:~$ docker run -idt --name moviepy-test dkarchmervue/moviepy 4e4afde5a3702171ac345f924f4a40596fb081f20cf6984544c0b7855d5585b7

查看容器运行情况

ucsheep@ucsheep-B250M-D2V:~$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 4e4afde5a370 dkarchmervue/moviepy "/bin/bash" About a minute ago Up About a minute moviepy-test

进入容器，看看moviepy环境是否可用

ucsheep@ucsheep-B250M-D2V:~$ docker attach moviepy-test root@4e4afde5a370:/work# root@4e4afde5a370:/work# python3 Python 3.4.4 (default, May 25 2016, 06:34:52) [GCC 4.8.4] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import moviepy >>>

没有报错，大功告成。可以将开发目录挂载到容器中的work目录，方便运行。

Dockerfile构建

首先，clone MoviePy源码

ucsheep@ucsheep-B250M-D2V:~/git-projects$ git clone https://github.com/Zulko/moviepy.git

查看，看到了Dockerfile

ucsheep@ucsheep-B250M-D2V:~/git-projects$ cd moviepy/ ucsheep@ucsheep-B250M-D2V:~/git-projects/moviepy$ ls appveyor CONTRIBUTING.md examples MANIFEST.in setup.py appveyor.yml Dockerfile ez_setup.py moviepy tests CHANGELOG.md docs LICENCE.txt README.rst

Dockerfile的内容如下

FROM python:3 # Install numpy using system package manager RUN apt-get -y update && apt-get -y install libav-tools imagemagick libopencv-dev python-opencv # Install some special fonts we use in testing, etc.. RUN apt-get -y install fonts-liberation RUN apt-get install -y locales && \ locale-gen C.UTF-8 && \ /usr/sbin/update-locale LANG=C.UTF-8 ENV LC_ALL C.UTF-8 # do we need all of these, maybe remove some of them? RUN pip install imageio numpy scipy matplotlib pandas sympy nose decorator tqdm pillow pytest requests # install scikit-image after the other deps, it doesn't cause errors this way. RUN pip install scikit-image sklearn ADD . /var/src/moviepy/ #RUN git clone https://github.com/Zulko/moviepy.git /var/src/moviepy RUN cd /var/src/moviepy/ && python setup.py install # install ffmpeg from imageio. RUN python -c "import imageio; imageio.plugins.ffmpeg.download()" #add soft link so that ffmpeg can executed (like usual) from command line RUN ln -s /root/.imageio/ffmpeg/ffmpeg.linux64 /usr/bin/ffmpeg # modify ImageMagick policy file so that Textclips work correctly. RUN cat /etc/ImageMagick-6/policy.xml | sed 's/none/read,write/g'> /etc/ImageMagick-6/policy.xml

就是在Python3的基础上，搭建量MoviePy的运行环境

那么，接下来，开始构建

ucsheep@ucsheep-B250M-D2V:~/git-projects/moviepy$ docker build -t moviepy -f Dockerfile . Sending build context to Docker daemon 7.115MB Step 1/12 : FROM python:3 ---> 825141134528 Step 2/12 : RUN apt-get -y update && apt-get -y install libav-tools imagemagick libopencv-dev python-opencv ---> Running in b09eb178cc0a Ign:1 http://deb.debian.org/debian stretch InRelease Get:2 http://security.debian.org/debian-security stretch/updates InRelease [94.3 kB] Get:3 http://deb.debian.org/debian stretch-updates InRelease [91.0 kB] Get:4 http://deb.debian.org/debian stretch Release [118 kB] Get:5 http://security.debian.org/debian-security stretch/updates/main amd64 Packages [437 kB] Get:6 http://deb.debian.org/debian stretch-updates/main amd64 Packages [5148 B] Get:7 http://deb.debian.org/debian stretch Release.gpg [2434 B] Get:8 http://deb.debian.org/debian stretch/main amd64 Packages [7099 kB]

最终执行到Step 12/12后会构建完毕

接下来，可以运行容器，测试moviepy给出的示例代码：

ucsheep@ucsheep-B250M-D2V:~/git-projects/moviepy$ cd tests/ ucsheep@ucsheep-B250M-D2V:~/git-projects/moviepy/tests$ ls download_media.py test_fx.py test_resourcerelease.py __init__.py test_helper.py test_TextClip.py README.rst test_ImageSequenceClip.py test_tools.py test_AudioClips.py test_issues.py test_VideoClip.py test_compositing.py test_misc.py test_VideoFileClip.py test_examples.py test_PR.py test_Videos.py test_ffmpeg_reader.py test_resourcereleasedemo.py test_videotools.py ucsheep@ucsheep-B250M-D2V:~/git-projects/moviepy/tests$ docker run -it -v `pwd`:/tests moviepy bash

 

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