Authorization

The authorization template defines parameters for performing policy enforcement within Istio. It is primarily concerned with enabling Mixer

Example config:

apiVersion: "config.istio.io/v1alpha2"
kind: instance
metadata:
  name: authinfo
  namespace: istio-system
spec:
  compiledTemplate: authorization
  params:
    subject:
      user: source.principal | request.auth.principal | ""
      groups: request.auth.claims["groups"] | ""
      properties:
        iss: request.auth.claims["iss"]
    action:
      namespace: destination.namespace | "default"
      service: destination.service.host | ""
      path: request.path | "/"
      method: request.method | "post"
      properties:
        version: destination.labels[version] | ""

Action

An action defines “how a resource is accessed”.

FieldTypeDescriptionRequired
namespacestring

Namespace the target action is taking place in.

No
servicestring

The Service the action is being taken on.

No
methodstring

What action is being taken.

No
pathstring

HTTP REST path within the service

No
propertiesmap<string, Value>

Additional data about the action for use in policy.

No

Subject

A subject contains a list of attributes that identify the caller identity.

FieldTypeDescriptionRequired
userstring

The user name/ID that the subject represents.

No
groupsstring

Groups the subject belongs to depending on the authentication mechanism, “groups” are normally populated from JWT claim or client certificate. The operator can define how it is populated when creating an instance of the template.

No
propertiesmap<string, Value>

Additional attributes about the subject.

No

Template

The authorization template defines parameters for performing policy enforcement within Istio. It is primarily concerned with enabling Mixer adapters to make decisions about who is allowed to do what. In this template, the “who” is defined in a Subject message. The “what” is defined in an Action message. During a Mixer Check call, these values will be populated based on configuration from request attributes and passed to individual authorization adapters to adjudicate.

FieldTypeDescriptionRequired
subjectSubject

A subject contains a list of attributes that identify the caller identity.

No
actionAction

An action defines “how a resource is accessed”.

No