CFPB/Kratos
Zeus's winged enforcer.
A pluggable microservice to enforce authorization across the entire enterprise. One of the Pantheon of CFPB microservices.
Kratos keeps tracks of three things: (1) teams, (2) which users have which roles on those teams, and (3) which assets are available to the team. It can then, based on it's database of teams/users/assets, setup teams, users and permissions on other resources.
Kratos is built with Pantheon-Helpers, so it is built on an evented architucture using NodeJS and CouchDB. In order for kratos to enforce authorization on other resources, you must create a resource adapter. A resource adapter consists of: (1) authorization and (2) validation functions for asset management and (3) worker handlers.
This document explains generally how kratos works, and specifically how to create an adapter.
General Architecture
Kratos is built with Pantheon-Helpers. You should familiarize yourself with Pantheon-helpers documentation before continuing.
Authorization model
Users can have two different types of roles. A user with a particular Team Role only has that role on a particular team. If a user has a Resource role, they have that role system-wide. Assets can be assigned to teams (and soon, hopefully, users).
An example of a resource role might be gh|user.
It conveys that the user has fulfilled all requirements necessary to be allowed to access the public github.
An example of a Team Role might be administrator of the Pantheon Team.
The Github resource adapter then defines how to map resource and team roles to github permissions.
The Github resource adapter specifies that a user gets read/write access to a repo if (1) they have the gh|user resource role, and
(2) they are a member or administrator of the team that ownes the repo.
which is All authenticated users have an entry in the _users database.
Kratos uses to CouchDB databases: the _users database and the t
An asset is provided by a service. So, for example, if you want kratos to manage
Kratos defines a number of actions for manipulating these three things.