11.5. 在与 Service Mesh 相同的集群中使用 3scale

流程

1. 为后端创建 ServiceEntry ：

   oc apply -n <info> -f -<<EOF
   apiVersion: networking.istio.io/v1beta1
   kind: ServiceEntry
   metadata:
     name: <service_entry_threescale_backend>
   spec:
     hosts:
     - backend-listener.<3scale_namespace>.svc.cluster.local
     ports:
     - number: 80
       name: http
       protocol: HTTP
     location: MESH_EXTERNAL
     resolution: DNS
   EOF

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2. 为后端创建 DestinationRule ：

   oc apply -n <info> -f -<<EOF
   apiVersion: networking.istio.io/v1beta1
   kind: DestinationRule
   metadata:
     name: <destination_rule_threescale_backend>
   spec:
     host: backend-listener.<3scale_namespace>.svc.cluster.local
   EOF

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