[GitHub] [skywalking] wu-sheng commented on issue #6606: [SWCK] Special characters in service selector

[GitBox]

wu-sheng commented on issue #6606:
URL: https://github.com/apache/skywalking/issues/6606#issuecomment-804966544


   Recommend to keep label system, due to avoid complex metric name register.
   We could use multiple service labels to assemble the final string.
   ```
     - type: External
       external:
         metric:
           name: service_cpm
           selector:
             matchLabels:
               service_literal_0: "v1"
               service_var_1: "SW_V_VERTIAL_BAR"
               service_literal_2: "productpage"
               service_var_3: "SW_V_VERTIAL_BAR"
               service_literal_4: "bookinfo"
         target:
           type: Value
           value: 80
   ```


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