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User guide: Anonymous access

Bypass identity verification or fall back to anonymous access when credentials fail to validate

Authorino features in this guide: For further details about Authorino features in general, check the [docs](./../features.md).


Requirements

  • Kubernetes server

Create a containerized Kubernetes server locally using Kind:

kind create cluster --name authorino-tutorial

1. Install the Authorino Operator

curl -sL https://raw.githubusercontent.com/Kuadrant/authorino-operator/main/utils/install.sh | bash -s

2. Deploy the Talker API

The Talker API is just an echo API, included in the Authorino examples. We will use it in this guide as the service to be protected with Authorino.

kubectl apply -f https://raw.githubusercontent.com/kuadrant/authorino-examples/main/talker-api/talker-api-deploy.yaml

3. Deploy Authorino

kubectl apply -f -<<EOF
apiVersion: operator.authorino.kuadrant.io/v1beta1
kind: Authorino
metadata:
  name: authorino
spec:
  listener:
    tls:
      enabled: false
  oidcServer:
    tls:
      enabled: false
EOF

The command above will deploy Authorino as a separate service (as opposed to a sidecar of the protected API and other architectures), in namespaced reconciliation mode, and with TLS termination disabled. For other variants and deployment options, check out the Getting Started section of the docs, the Architecture page, and the spec for the Authorino CRD in the Authorino Operator repo.

4. Setup Envoy

The following bundle from the Authorino examples (manifest referred in the command below) is to apply Envoy configuration and deploy Envoy proxy, that wire up the Talker API behind the reverse-proxy and external authorization with the Authorino instance.

For details and instructions to setup Envoy manually, see Protect a service > Setup Envoy in the Getting Started page. For a simpler and straightforward way to manage an API, without having to manually install or configure Envoy and Authorino, check out Kuadrant.

kubectl apply -f https://raw.githubusercontent.com/kuadrant/authorino-examples/main/envoy/envoy-notls-deploy.yaml

The bundle also creates an Ingress with host name talker-api-authorino.127.0.0.1.nip.io, but if you are using a local Kubernetes cluster created with Kind, you need to forward requests on port 8000 to inside the cluster in order to actually reach the Envoy service:

kubectl port-forward deployment/envoy 8000:8000 &

5. Create the AuthConfig

kubectl apply -f -<<EOF
apiVersion: authorino.kuadrant.io/v1beta2
kind: AuthConfig
metadata:
  name: talker-api-protection
spec:
  hosts:
  - talker-api-authorino.127.0.0.1.nip.io
  authentication:
    "public":
      anonymous: {}
EOF

The example above enables anonymous access (i.e. removes authentication), without adding any extra layer of protection to the API. This is virtually equivalent to setting a top-level condition to the AuthConfig that always skips the configuration, or to switching authentication/authorization off completely in the route to the API.

For more sophisticated use cases of anonymous access with Authorino, consider combining this feature with other identity sources in the AuthConfig while playing with the priorities of each source, as well as combination with when conditions, and/or adding authorization policies that either cover authentication or address anonymous access with proper rules (e.g. enforcing read-only access).

Check out the docs for the Anonymous access feature for an example of an AuthConfig that falls back to anonymous access when a priority OIDC/JWT-based authentication fails, and enforces a read-only policy in such cases.

6. Consume the API

curl http://talker-api-authorino.127.0.0.1.nip.io:8000/hello
# HTTP/1.1 200 OK

Cleanup

If you have started a Kubernetes cluster locally with Kind to try this user guide, delete it by running:

kind delete cluster --name authorino-tutorial

Otherwise, delete the resources created in each step:

kubectl delete authconfig/talker-api-protection
kubectl delete authorino/authorino
kubectl delete -f https://raw.githubusercontent.com/kuadrant/authorino-examples/main/envoy/envoy-notls-deploy.yaml
kubectl delete -f https://raw.githubusercontent.com/kuadrant/authorino-examples/main/talker-api/talker-api-deploy.yaml

To uninstall the Authorino Operator and manifests (CRDs, RBAC, etc), run:

kubectl delete -f https://raw.githubusercontent.com/Kuadrant/authorino-operator/main/config/deploy/manifests.yaml