Merge pull request #286 from jiekun/refactor/exporter-interface

Update 02-opentelemetry-collector.md with latest exporter config

docs/zh/07-server-integration/02-export/02-opentelemetry-collector.md

@@ -23,20 +23,22 @@ permalink: /server-integration/export/opentelemetry-collector
 # 配置相关
 
 ```bash
-  ingester:
-    otlp-exporter:
-      enabled: true
-      addr: 127.0.0.1:4317 
-      export-datas: [cbpf-net-span,ebpf-sys-span]
-      export-data-types: [service_info,tracing_info,network_layer,flow_info,transport_layer,application_layer,metrics]
-      export-custom-k8s-labels-regexp: 
-      export-only-with-traceid: false
-      queue-count: 2  
-      queue-size: 1000000 
-      grpc-headers: 
-        ${key1}: ${value1}
-        ${key2}: ${value2}
-
+ingester:
+  exporters:
+    - name: test exporter
+      exporter_type: otlp-exporter
+      otlp-exporter:
+        enabled: true
+        addr: 127.0.0.1:4317 
+        export-datas: [cbpf-net-span,ebpf-sys-span]
+        export-data-types: [service_info,tracing_info,network_layer,flow_info,transport_layer,application_layer,metrics]
+        export-custom-k8s-labels-regexp: 
+        export-only-with-traceid: false
+        queue-count: 2  
+        queue-size: 1000000 
+        grpc-headers: 
+          ${key1}: ${value1}
+          ${key2}: ${value2}
 ```
 关于[详细配置](https://github.com/deepflowio/deepflow/blob/main/server/server.yaml#L474)。