Istio 排除匹配不适用于没有 jwt 主体的 healthz api

Question

我的 RequestAuthentication 是这个

apiVersion: security.istio.io/v1beta1
kind: RequestAuthentication
metadata:
  name: testing-dev-authenticator
  namespace: istio-system
spec:
  selector:
    matchLabels:
      istio: ingressgateway
  jwtRules:
  - issuer: "https://www.googleapis.com/service_accounts/v1/jwk/securetoken@system.gserviceaccount.com"
    jwksUri: "https://securetoken.google.com/<project-name>"

我的授权策略是这样的

apiVersion: security.istio.io/v1beta1
kind: AuthorizationPolicy
metadata:
 name: test-dev-authorizer-all-svc
 namespace: dev
spec:
 action: ALLOW
 rules:
 - from:
   - source:
       notRequestPrincipals: ["*"]
   to:
   - operation:
       notPaths: ["/message/ping"]

我的要求是我不想让 jwt auth 签入 healthz（我的情况是 /message/ping），但我总是 上面的响应是“RBAC：访问被拒绝”

Answer 1

I wanted all the pods deployed in "dev" namespace to be authenticated except a healthcheck, path of it is path : ["/user/ping", "/message/ping"] but iam unable to give both at a time

我已经重现了你的问题，我认为它正在按照你希望的方式工作。

有我的 RequestAuthentication 和 AuthorizationPolicy yaml。

apiVersion: security.istio.io/v1beta1
kind: RequestAuthentication
metadata:
  name: testing-dev-authenticator
  namespace: istio-system
spec:
  selector:
    matchLabels:
      istio: ingressgateway
  jwtRules:
  - issuer: "testing@secure.istio.io"
    jwksUri: "https://raw.githubusercontent.com/istio/istio/release-1.8/security/tools/jwt/samples/jwks.json"

---

apiVersion: security.istio.io/v1beta1
kind: AuthorizationPolicy
metadata:
  name: require-jwt
  namespace: istio-system
spec:
  selector:
    matchLabels:
      istio: ingressgateway
  action: ALLOW
  rules:
  - from:
    - source:
        requestPrincipals: ["*"]
    to:
    - operation:
        paths: ["/productpage"]
  - to:
    - operation:
        paths: ["/api/v1/products"]

您可以使用以下内容从 JWT 中排除路径（例如“/api/v1/products”），当“/productpage”需要 JWT 时，将拒绝所有没有令牌的请求。

如果您想排除多个路径，那么这应该可行：

paths: ["/api/v1/products","/login"]

所以在你的情况下会是

paths: ["/user/ping", "/message/ping"]

我已经在 bookinfo 应用程序上测试了以上配置。

有我用过的token

TOKEN=$(curl https://raw.githubusercontent.com/istio/istio/release-1.8/security/tools/jwt/samples/demo.jwt -s)

测试：

api/v1/products
Without token
200
With token
200
------------------------------------------------------------------
/productpage
Without token
403
With token
200

您还提到您想在特定命名空间中执行此操作，那么您可以尝试使用这些 RequestAuthentication 和 AuthorizationPolicy yaml。

apiVersion: security.istio.io/v1beta1
kind: RequestAuthentication
metadata:
  name: testing-dev-authenticator
  namespace: dev
spec:
  jwtRules:
  - issuer: "testing@secure.istio.io"
    jwksUri: "https://raw.githubusercontent.com/istio/istio/release-1.8/security/tools/jwt/samples/jwks.json"

---

apiVersion: security.istio.io/v1beta1
kind: AuthorizationPolicy
metadata:
 name: test-dev-only-authorized-api
 namespace: dev
spec:
 action: DENY
 rules:
 - from:
   - source:
        notRequestPrincipals: ["*"]
   to:
   - operation:
       paths: ["/productpage"]

同样基于 bookinfo 申请。

测试：

api/v1/products
Without token
200
With token
200
------------------------------------------------------------------
/productpage
Without token
403
With token
200

其他资源：

Istio 排除匹配不适用于没有 jwt 主体的 healthz api

Istio Exclusion matching not working for healthz api without jwt principal

kubernetes

istio

kubernetes-ingress

istio-sidecar