dynamic-config

在项目开始之前声明配置变量，并从环境变量或配置文件中推断。在开发（CI/CD）和部署（CI/CD）Django Web应用时非常有用。

安装

pip install dynamic-conf

功能

• 支持.env或.py文件
• 支持使用类型注解进行类型转换
• 您也不需要包含样本文件。因为Config对象可以自己生成.env.py。
• 它还会从环境变量中加载配置变量。优先顺序是环境变量 > env.py
• 属性是延迟评估的。

入门

• 您需要继承Config类。
• 配置文件应定义项目所需的所有变量。

# 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

• 要创建project/env.py，只需运行并指定CONFIG类模块的路径

# 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"

用法

• 要使用配置，只需导入并使用特定的属性即可

# 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",
    }
}