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Generates files by parsing the environment with jinja2

Project Description

env-render
==========

Render a file with jinja2 using a context built from processing environment
variables.

Installation
------------

From pip::

$ pip install env-render

Usage
-----

To render a jinja document and collect all the environment variables with the
prefix `APP`, enter this command::

$ env-render -p APP src_template.txt output.txt

Example
-------

So imagine this environment::

APP_0_ENV0=a
APP_0_ENV1=b
APP_0_HOSTNAME=app_0
APP_1_ENV0=c
APP_1_ENV1=d
APP_1_HOSTNAME=app_1
APP_2_ENV0=e
APP_2_ENV1=f
APP_2_HOSTNAME=app_2

Becomes this dictionary::

{
"apps": [
{
"_index": 0,
"ENV0": "a",
"ENV1": "b",
"HOSTNAME": "app_0"
},
{
"_index": 1,
"ENV0": "c",
"ENV1": "d",
"HOSTNAME": "app_1"
},
{
"_index": 2,
"ENV0": "e",
"ENV1": "f",
"HOSTNAME": "app_2"
}
]
}


Which can then be used like this in a file. Say an ``haproxy.cfg`` file::

listen someapp
bind 0.0.0.0:80

{% for app in apps %}
server server{{ app._index }} {{ app.HOSTNAME }}:80
{% endfor %}

This is what this library is meant to do.

Release history Release notifications

This version
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0.1.2

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0.1.1

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0.1.0

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