使用托管服务

多年以前我使用过PythonAnywhere，但是后来我使用nodejs了，我也需要类似的服务。heroku似乎可以接棒？免费？黑盒？对于业余玩家来说真的不需要太多的算力，网络，存储。

network
data store

mongodb as a service

redis as a service

mysql as a service

rocketmq as a service

web服务托管

静态资源托管 ‘
你不需要真正的拥有，你只需要一个网络访问权限。
你自己管理域名就好了

heroku是一个不错的选择

很惊奇heroku是在2007年就出来的一款产品。至少从思路上来说，这家公司是有很大前瞻性的。

add-ons的概念，我的理解就是一个插件的概念。你所需要的服务都可以通过插件的方式得到满足。
服务类别如下：例如数据存储，监控，日志等等。

十二条宣言

https://12factor.net/zh_cn/

The Twelve Factors
I. Codebase
One codebase tracked in revision control, many deploys
II. Dependencies
Explicitly declare and isolate dependencies
III. Config
Store config in the environment
IV. Backing services
Treat backing services as attached resources
V. Build, release, run
Strictly separate build and run stages
VI. Processes
Execute the app as one or more stateless processes
VII. Port binding
Export services via port binding
VIII. Concurrency
Scale out via the process model
IX. Disposability
Maximize robustness with fast startup and graceful shutdown
X. Dev/prod parity
Keep development, staging, and production as similar as possible
XI. Logs
Treat logs as event streams
XII. Admin processes
Run admin/management tasks as one-off processes