repo2docker/docs/source/config_files.txt

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.. _config-files:
Supported configuration files
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Below is a list of supported configuration files.
.. contents::
:local:
:depth: 1
``requirements.txt``
^^^^^^^^^^^^^^^^^^^^
This specifies a list of python packages that would be installed in a virtualenv (or conda environment).
Example Contents
````````````````
::
numpy==1.7
matplotlib==2.1
``environment.yml``
^^^^^^^^^^^^^^^^^^^
This is a conda environment specification, that lets you install packages with conda.
Example Contents
````````````````
::
channels:
- conda-forge
- defaults
dependencies:
- matplotlib
- pip:
- sphinx-gallery
.. important::
You must leave the ``environment.yml``'s name field empty for this
to work out of the box.
``apt.txt``
^^^^^^^^^^^
A list of debian packages that should be installed. The base image used is usually the latest released
version of Ubuntu (currently Zesty.)
Example Contents
````````````````
::
cowsay
fortune
``postBuild``
^^^^^^^^^^^^^
A script that can contain arbitrary commands to be run after the whole repository has been built. If you
want this to be a shell script, make sure the first line is `#!/bin/bash`.
Example Contents
````````````````
::
wget <url-to-dataset>
python myfile.py
.. note::
This file must be executable to be used with ``repo2docker``. To do this,
run the following::
chmod +x postBuild
``REQUIRE``
^^^^^^^^^^^
This specifies a list of Julia packages!
.. note::
Using a ``REQUIRE`` file also requires that the repository contain an
``environment.yml`` file.
Example Contents
````````````````
::
PyPlot
Stats
``runtime.txt``
^^^^^^^^^^^^^^^
This allows you to control the runtime of Python. To use Python 2,
put the line ``python-2.7`` in the file. A Python 2 kernel will be installed
alongside Python 3.
Example Contents
````````````````
::
python-2.7
``Dockerfile``
^^^^^^^^^^^^^^
This will be treated as a regular Dockerfile and a regular Docker build will be performed.
The presence of a Dockerfile prevents all other build behavior.
See the `Binder Documentation <https://mybinder.readthedocs.io/en/latest/dockerfile.html>`_ for
best-practices with Dockerfiles.