项目开发--开发模式的配置

2020年5月25日 10:52 by scott

服务部署

今天聊一下项目开发中环境变量设置踩过的坑。

配置文件中设置

为便于调试开发,项目开发中一般都会设置开发环境,所用的数据库或者其他变量对应开发模式。

第一次尝试:

在config.py中设置DEV=True为开发模式,DEV=False为生成模式。

问题:

开发完之后需要把代码合并到生产环境,此时开发config.py中的DEV=True会覆盖生产环境中的这个变量,导致服务完全错乱。

解决方法:

每次往生产环境合并代码前,手动修改下这个标志。

下面说一个更好的解决方案:

环境变量中设置

1. 在环境变量中设置标志

export DEV=true

2. 在配置文件(config.py)中获取这个变量

import os
dev = os.environ.get("DEV", "true").lower()
DEV = True if dev == 'true' else False

 

总结

建议大家在环境变量中设置开发标志。

你认为这样有什么好处呢?欢迎在下方留言

 


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