12 Factor Apps

In the modern era, software is commonly delivered as a service:
called web apps, or software-as-a-service. The twelve-factor app
is a methodology for building software-as-a-service apps that:


Use declarative formats for setup
automation, to minimize time and cost for new developers joining
the project;

Have a clean contract with the underlying
operating system, offering maximum portability
between execution environments;

Are suitable for deployment on modern
cloud platforms, obviating the need for servers
and systems administration;


Minimize divergence between development and
production, enabling continuous deployment for
maximum agility;

And can scale up without significant changes
to tooling, architecture, or development practices.



The twelve-factor methodology can be applied to apps written in
any programming language, and which use any combination of
backing services (database, queue, memory cache, etc).



Resources


The 12 Factor App

My Review & Analysis on The DevOps Handbook

My Review & Analysis on Accelerate

Software Development in 3 Principles & 4 Metrics



Books


The DevOps Handbook by Gene Kim, Jez Humble, John Willis,
Patrick Debois

Accelerate by Nicole Forsgren, Jez Humble, Gene Kim

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