thz
          grpc_service:
            envoy_grpc:
              cluster_name: acme-ext-authz
            initial_metadata:
            - key: foo
              value: myauth.acme # required by local ext auth server.
</code></pre></article><nav class=pagenav><div class=left><a title href=/v1.21/zh/docs/reference/config/analysis/ist0135/ class=next-link><svg class="icon left-arrow"><use xlink:href="/v1.21/img/icons.svg#left-arrow"/></svg>DeprecatedAnnotation</a></div><div class=right><a title href=/v1.21/zh