apiVersion: security.istio.io/v1
kind: AuthorizationPolicy
metadata:
  name: httpbin
  namespace: foo
spec:
  selector:
    matchLabels:
      app: httpbin
      version: v1
  rules:
    - from:
        - source:
            principals: ["*"]
        - source:
            principals: ["*/ns/foo/sa/rule[0]-from[1]-principal[0]", "*bar/ns/foo/sa/rule[0]-from[1]-principal[1]"]