Docker Support

[whit3he4d]

I created a Dockerfile thats downloads and install all necessary files.
Also adds a small python scrips which is able to handle multiple lists of spotify uris.

[tmaier]

Thanks for providing a Dockerfile, however it fails.
Please tag a specific ubuntu version, maybe even an official image for python with PIP installed

 => ERROR [10/15] RUN wget https://bootstrap.pypa.io/get-pip.py &&     python get-pip.py                                                          0.8s
------
 > [10/15] RUN wget https://bootstrap.pypa.io/get-pip.py &&     python get-pip.py:
#14 0.399 --2021-03-26 22:44:16--  https://bootstrap.pypa.io/get-pip.py
#14 0.400 Resolving bootstrap.pypa.io (bootstrap.pypa.io)... 151.101.0.175, 151.101.64.175, 151.101.128.175, ...
#14 0.465 Connecting to bootstrap.pypa.io (bootstrap.pypa.io)|151.101.0.175|:443... connected.
#14 0.516 HTTP request sent, awaiting response... 200 OK
#14 0.532 Length: 1927630 (1.8M) [text/x-python]
#14 0.532 Saving to: 'get-pip.py'
#14 0.532
#14 0.532      0K .......... .......... .......... .......... ..........  2% 3.18M 1s
#14 0.547     50K .......... .......... .......... .......... ..........  5% 7.62M 0s
#14 0.554    100K .......... .......... .......... .......... ..........  7% 5.92M 0s
#14 0.562    150K .......... .......... .......... .......... .......... 10% 7.87M 0s
#14 0.569    200K .......... .......... .......... .......... .......... 13% 6.73M 0s
#14 0.576    250K .......... .......... .......... .......... .......... 15% 11.0M 0s
#14 0.580    300K .......... .......... .......... .......... .......... 18% 7.94M 0s
#14 0.586    350K .......... .......... .......... .......... .......... 21% 14.1M 0s
#14 0.590    400K .......... .......... .......... .......... .......... 23% 6.66M 0s
#14 0.597    450K .......... .......... .......... .......... .......... 26% 9.70M 0s
#14 0.602    500K .......... .......... .......... .......... .......... 29% 12.1M 0s
#14 0.606    550K .......... .......... .......... .......... .......... 31% 3.77M 0s
#14 0.619    600K .......... .......... .......... .......... .......... 34% 32.4M 0s
#14 0.621    650K .......... .......... .......... .......... .......... 37% 27.2M 0s
#14 0.622    700K .......... .......... .......... .......... .......... 39% 4.60M 0s
#14 0.633    750K .......... .......... .......... .......... .......... 42% 8.62M 0s
#14 0.639    800K .......... .......... .......... .......... .......... 45% 12.8M 0s
#14 0.643    850K .......... .......... .......... .......... .......... 47% 12.6M 0s
#14 0.646    900K .......... .......... .......... .......... .......... 50% 8.09M 0s
#14 0.652    950K .......... .......... .......... .......... .......... 53% 12.3M 0s
#14 0.656   1000K .......... .......... .......... .......... .......... 55% 10.8M 0s
#14 0.661   1050K .......... .......... .......... .......... .......... 58% 8.43M 0s
#14 0.667   1100K .......... .......... .......... .......... .......... 61% 12.4M 0s
#14 0.671   1150K .......... .......... .......... .......... .......... 63% 10.2M 0s
#14 0.675   1200K .......... .......... .......... .......... .......... 66% 14.4M 0s
#14 0.679   1250K .......... .......... .......... .......... .......... 69% 14.0M 0s
#14 0.683   1300K .......... .......... .......... .......... .......... 71% 11.7M 0s
#14 0.687   1350K .......... .......... .......... .......... .......... 74% 9.85M 0s
#14 0.691   1400K .......... .......... .......... .......... .......... 77% 16.2M 0s
#14 0.694   1450K .......... .......... .......... .......... .......... 79% 12.0M 0s
#14 0.698   1500K .......... .......... .......... .......... .......... 82% 15.6M 0s
#14 0.702   1550K .......... .......... .......... .......... .......... 84% 10.5M 0s
#14 0.706   1600K .......... .......... .......... .......... .......... 87% 14.1M 0s
#14 0.710   1650K .......... .......... .......... .......... .......... 90% 21.7M 0s
#14 0.712   1700K .......... .......... .......... .......... .......... 92% 11.8M 0s
#14 0.716   1750K .......... .......... .......... .......... .......... 95% 13.9M 0s
#14 0.720   1800K .......... .......... .......... .......... .......... 98% 9.18M 0s
#14 0.725   1850K .......... .......... .......... ..                   100% 16.3M=0.2s
#14 0.727
#14 0.727 2021-03-26 22:44:16 (9.44 MB/s) - 'get-pip.py' saved [1927630/1927630]
#14 0.727
#14 0.764 ERROR: This script does not work on Python 2.7 The minimum supported Python version is 3.6. Please use https://bootstrap.pypa.io/pip/2.7/get-pip.py instead.
------
executor failed running [/bin/sh -c wget https://bootstrap.pypa.io/get-pip.py &&     python get-pip.py]: exit code: 1