shijinkui opened a new issue #1750:
URL: https://github.com/apache/servicecomb-java-chassis/issues/1750
external_conf.properties
```
app_name=xxxx
```
再microservice.yaml里include external_conf.properties，替换yaml中的变量占位符。
```
!include external_conf.properties
APPLICATION_ID: ${app_name}
service_description:
name: fooService
version: 0.0.1
servicecomb:
rest:
address: 0.0.0.0:8080
```
这样能够很容易做dev/prod环境配置。如果多环境直接操作yaml，就要维护本地开环境的配置yaml和yaml.tmpl模板。
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