istio.io/content/zh/docs/reference/config/security/request_authentication/index.html

---
WARNING: THIS IS AN AUTO-GENERATED FILE, DO NOT EDIT. PLEASE MODIFY THE ORIGINAL SOURCE IN THE 'https://github.com/istio/api' REPO
source_repo: https://github.com/istio/api
title: RequestAuthentication
description: Request authentication configuration for workloads.
location: https://istio.io/docs/reference/config/security/request_authentication.html
layout: protoc-gen-docs
generator: protoc-gen-docs
schema: istio.security.v1beta1.RequestAuthentication
aliases: [/zh/docs/reference/config/security/v1beta1/request_authentication]
number_of_entries: 1
---
<h2 id="RequestAuthentication">RequestAuthentication</h2>
<section>
<p>RequestAuthentication defines what request authentication methods are supported by a workload.
It will reject a request if the request contains invalid authentication information, based on the
configured authentication rules. A request that does not contain any authentication credentials
will be accepted but will not have any authenticated identity. To restrict access to authenticated
requests only, this should be accompanied by an authorization rule.
Examples:</p>
<ul>
<li>Require JWT for all request for workloads that have label <code>app:httpbin</code></li>
</ul>
<pre><code class="language-yaml">apiVersion: security.istio.io/v1
kind: RequestAuthentication
metadata:
  name: httpbin
  namespace: foo
spec:
  selector:
    matchLabels:
      app: httpbin
  jwtRules:
  - issuer: &quot;issuer-foo&quot;
    jwksUri: https://example.com/.well-known/jwks.json
---
apiVersion: security.istio.io/v1
kind: AuthorizationPolicy
metadata:
  name: httpbin
  namespace: foo
spec:
  selector:
    matchLabels:
      app: httpbin
  rules:
  - from:
    - source:
        requestPrincipals: [&quot;*&quot;]
</code></pre>
<ul>
<li>A policy in the root namespace (&ldquo;istio-system&rdquo; by default) applies to workloads in all namespaces
in a mesh. The following policy makes all workloads only accept requests that contain a
valid JWT token.</li>
</ul>
<pre><code class="language-yaml">apiVersion: security.istio.io/v1
kind: RequestAuthentication
metadata:
  name: req-authn-for-all
  namespace: istio-system
spec:
  jwtRules:
  - issuer: &quot;issuer-foo&quot;
    jwksUri: https://example.com/.well-known/jwks.json
---
apiVersion: security.istio.io/v1
kind: AuthorizationPolicy
metadata:
  name: require-jwt-for-all
  namespace: istio-system
spec:
  rules:
  - from:
    - source:
        requestPrincipals: [&quot;*&quot;]
</code></pre>
<ul>
<li>The next example shows how to set a different JWT requirement for a different <code>host</code>. The <code>RequestAuthentication</code>
declares it can accept JWTs issued by either <code>issuer-foo</code> or <code>issuer-bar</code> (the public key set is implicitly
set from the OpenID Connect spec).</li>
</ul>
<pre><code class="language-yaml">apiVersion: security.istio.io/v1
kind: RequestAuthentication
metadata:
  name: httpbin
  namespace: foo
spec:
  selector:
    matchLabels:
      app: httpbin
  jwtRules:
  - issuer: &quot;issuer-foo&quot;
  - issuer: &quot;issuer-bar&quot;
---
apiVersion: security.istio.io/v1
kind: AuthorizationPolicy
metadata:
  name: httpbin
  namespace: foo
spec:
  selector:
    matchLabels:
      app: httpbin
  rules:
  - from:
    - source:
        requestPrincipals: [&quot;issuer-foo/*&quot;]
    to:
    - operation:
        hosts: [&quot;example.com&quot;]
  - from:
    - source:
        requestPrincipals: [&quot;issuer-bar/*&quot;]
    to:
    - operation:
        hosts: [&quot;another-host.com&quot;]
</code></pre>
<ul>
<li>You can fine tune the authorization policy to set different requirement per path. For example,
to require JWT on all paths, except /healthz, the same <code>RequestAuthentication</code> can be used, but the
authorization policy could be:</li>
</ul>
<pre><code class="language-yaml">apiVersion: security.istio.io/v1
kind: AuthorizationPolicy
metadata:
  name: httpbin
  namespace: foo
spec:
  selector:
    matchLabels:
      app: httpbin
  rules:
  - from:
    - source:
        requestPrincipals: [&quot;*&quot;]
  - to:
    - operation:
        paths: [&quot;/healthz&quot;]
</code></pre>
<p>[Experimental] Routing based on derived <a href="/latest/docs/reference/config/security/conditions/">metadata</a>
is now supported. A prefix &lsquo;@&rsquo; is used to denote a match against internal metadata instead of the headers in the request.
Currently this feature is only supported for the following metadata:</p>
<ul>
<li><code>request.auth.claims.{claim-name}[.{nested-claim}]*</code> which are extracted from validated JWT tokens.
Use the <code>.</code> or <code>[]</code> as a separator for nested claim names.
Examples: <code>request.auth.claims.sub</code>, <code>request.auth.claims.name.givenName</code> and <code>request.auth.claims[foo.com/name]</code>.
For more information, see <a href="/latest/docs/tasks/security/authentication/jwt-route/">JWT claim based routing</a>.</li>
</ul>
<p>The use of matches against JWT claim metadata is only supported in Gateways. The following example shows:</p>
<ul>
<li>RequestAuthentication to decode and validate a JWT. This also makes the <code>@request.auth.claims</code> available for use in the VirtualService.</li>
<li>AuthorizationPolicy to check for valid principals in the request. This makes the JWT required for the request.</li>
<li>VirtualService to route the request based on the &ldquo;sub&rdquo; claim.</li>
</ul>
<pre><code class="language-yaml">apiVersion: security.istio.io/v1
kind: RequestAuthentication
metadata:
  name: jwt-on-ingress
  namespace: istio-system
spec:
  selector:
    matchLabels:
      app: istio-ingressgateway
  jwtRules:
  - issuer: &quot;example.com&quot;
    jwksUri: https://example.com/.well-known/jwks.json
---
apiVersion: security.istio.io/v1
kind: AuthorizationPolicy
metadata:
  name: require-jwt
  namespace: istio-system
spec:
  selector:
    matchLabels:
      app: istio-ingressgateway
  rules:
  - from:
    - source:
        requestPrincipals: [&quot;*&quot;]
---
apiVersion: networking.istio.io/v1
kind: VirtualService
metadata:
  name: route-jwt
spec:
  hosts:
  - foo.prod.svc.cluster.local
  gateways:
  - istio-ingressgateway
  http:
  - name: &quot;v2&quot;
    match:
    - headers:
        &quot;@request.auth.claims.sub&quot;:
          exact: &quot;dev&quot;
    route:
    - destination:
        host: foo.prod.svc.cluster.local
        subset: v2
  - name: &quot;default&quot;
    route:
    - destination:
        host: foo.prod.svc.cluster.local
        subset: v1
</code></pre>

<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="RequestAuthentication-selector">
<td><code>selector</code></td>
<td><code><a href="/zh/docs/reference/config/type/workload-selector/#WorkloadSelector">WorkloadSelector</a></code></td>
<td>
<p>Optional. The selector decides where to apply the request authentication policy. The selector will match with workloads
in the same namespace as the request authentication policy. If the request authentication policy is in the root namespace,
the selector will additionally match with workloads in all namespaces.</p>
<p>If not set, the selector will match all workloads.</p>
<p>At most one of <code>selector</code> or <code>targetRefs</code> can be set for a given policy.</p>

</td>
<td>
No
</td>
</tr>
<tr id="RequestAuthentication-targetRefs">
<td><code>targetRefs</code></td>
<td><code><a href="/zh/docs/reference/config/type/workload-selector/#PolicyTargetReference">PolicyTargetReference[]</a></code></td>
<td>
<p>Optional. The targetRefs specifies a list of resources the policy should be
applied to. The targeted resources specified will determine which workloads
the policy applies to.</p>
<p>Currently, the following resource attachment types are supported:</p>
<ul>
<li><code>kind: Gateway</code> with <code>group: gateway.networking.k8s.io</code> in the same namespace.</li>
<li><code>kind: Service</code> with <code>&quot;&quot;</code> in the same namespace. This type is only supported for waypoints.</li>
</ul>
<p>If not set, the policy is applied as defined by the selector.
At most one of the selector and targetRefs can be set.</p>
<p>NOTE: If you are using the <code>targetRefs</code> field in a multi-revision environment with Istio versions prior to 1.22,
it is highly recommended that you pin the policy to a revision running 1.22+ via the <code>istio.io/rev</code> label.
This is to prevent proxies connected to older control planes (that don&rsquo;t know about the <code>targetRefs</code> field)
from misinterpreting the policy as namespace-wide during the upgrade process.</p>
<p>NOTE: Waypoint proxies are required to use this field for policies to apply; <code>selector</code> policies will be ignored.</p>

</td>
<td>
No
</td>
</tr>
<tr id="RequestAuthentication-jwt_rules">
<td><code>jwtRules</code></td>
<td><code><a href="/zh/docs/reference/config/security/jwt/#JWTRule">JWTRule[]</a></code></td>
<td>
<p>Define the list of JWTs that can be validated at the selected workloads&rsquo; proxy. A valid token
will be used to extract the authenticated identity.
Each rule will be activated only when a token is presented at the location recognized by the
rule. The token will be validated based on the JWT rule config. If validation fails, the request will
be rejected.
Note: Requests with multiple tokens (at different locations) are not supported, the output principal of
such requests is undefined.</p>

</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>