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AWS ALB Route Directive Adapter For Istio

AWS alb route directive adapter for istio is used in Kubeflow AWS Coginito manifest as part of the Authentication and Authorization offering.

Authentication - After your load balancer authenticates a user successfully, it sends the user claims received from the IdP to the target. The load balancer signs the user claim so that applications can verify the signature and verify that the claims were sent by the load balancer. The load balancer adds the HTTP headers x-amzn-oidc-data which is user claims, in JSON web tokens (JWT) format.

Authorization - Route directives enable Mixer adapters to modify traffic metadata using operation templates on the request and response headers. AWS alb route directive adapter for istio decode x-amzn-oidc-data and retrieve email field and add custom http header kubeflow-userid: [email protected] which will be used by Kubeflow Authorization layer.

This repo is built from Route directive adapter development guide. If you meet any problems, please follow that instructions.

Compability

  • This is originally built with istio 1.1.x. In istio 1.2.x, Adapter was removed and you have to enable it manually. Check change notes
  • This is not limited to Kubeflow usage. You can use it for any similar use case and customize it.

Development Instruction

Istio Local Copy

If you don't have isito, please download nad build a local copy of istio

mkdir -p $GOPATH/src/istio.io/
cd $GOPATH/src/istio.io/
git clone https://github.com/istio/istio
cd istio
go build ./...

Download code

Clone this repo and put it under $GOPATH/src/istio.io/isito.

Build binary

cd $GOPATH/src/istio.io/istio
GO111MODULE=off CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o authzadaptor/authzadaptor ./authzadaptor/main/main.go

Build container image

docker build -t seedjeffwan/istio-adapter:0.1 authzadaptor

Regenerate codes

If you want to start from scratch, you can follow instruction to generate codes.

cd $GOPATH/src/istio.io/istio

bin/mixer_codegen.sh -t authzadaptor/template.proto
bin/mixer_codegen.sh -a authzadaptor/config/config.proto -x "-s=false -n authzadaptor -t authzadaptor”

Security

See CONTRIBUTING for more information.

License

This project is licensed under the Apache-2.0 License.