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https://github.com/jnoortheen/dynamic-conf

Declarative way to manage configuration variables separated from source.
https://github.com/jnoortheen/dynamic-conf

configuration-files configuration-management django dotenv python

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Declarative way to manage configuration variables separated from source.

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# dynamic-config
Project configuration variables are declared beforehand and inferred from environment variables or configuration files. Useful while developing and deploying( CI/CD) django web-apps

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[![PyPi Version](https://img.shields.io/pypi/v/dynamic-conf.svg?style=flat)](https://pypi.python.org/pypi/dynamic-conf)
[![Python Version](https://img.shields.io/pypi/pyversions/returns.svg)](https://pypi.org/project/dynamic-conf/)

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# Install
```
pip install dynamic-conf
```

# Features
- supports `.env` or `.py` files
- supports casting with type annotations
- You also don't need to include a sample file. Since the `Config` object would be able to generate `.env.py` itself.
- It also loads Configuration variables from environment variables.
The order of preference is `env variables` > `env.py`
- Attributes are lazily evaluated.

# Getting Started

- You need to subclass the `Config` class.
- The config file should define all the variables needed for a project.

```python

# project/conf.py

from dynamic_conf import Config, REQUIRED

class CONFIG(Config):
"""singleton to be used for configuring from os.environ and env.py"""

# default settings

ENV = "prod" # optional field with a default value

DB_NAME = "db"
DB_HOST = "127.0.0.1"
DB_USER = "postgres"
DB_PASS = None # even None could be given as default value

SECRET_KEY:str # Python 3 only
AN_SECRET_KEY = REQUIRED # Python 2 & 3
```

- to create `project/env.py` just run with the path to CONFIG class's module
```shell script
# you could pass environment variables or set already with export
env DB_PASS='123' dynamic-conf project/conf.py

dynamic-conf project/conf.py DB_USER='user-1' DB_PASS='123' # pass as list of key-value pair

#to filter environment variables with a prefix
env VARS_PREFIX="PROD_" dynamic-conf project/conf.py PROD_DB_USER="user-2"
```

# Usage

- To use the config simply import and use particular attribute
```python
# project/settings.py
from conf import CONFIG
DATABASES = {
"default": {
"ENGINE": "django.contrib.gis.db.backends.postgis",
"HOST": CONFIG.DB_HOST,
"NAME": CONFIG.DB_NAME,
"USER": CONFIG.DB_USER,
"PASSWORD": CONFIG.DB_PASSWORD,
"PORT": "5432",
}
}
```