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43 lines
2.0 KiB
Markdown
43 lines
2.0 KiB
Markdown
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<!--
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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-->
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# 基于环境变量进行配置文件切换
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配置之所以从代码中提取出来，就是为了更好适应变化。通常我们的应用都有开发环境、生产环境等不同运行环境，这些环境下应用的一些配置肯定会有不同，比如：配置中心的地址等。
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如果把所有环境的配置都放在同一个文件里，非常不好管理，我们接到新需求后，在开发环境进行开发时，需要将配置文件中的参数都改成开发环境的，提交代码时还要改回去，这样改来改去非常容易出错。
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上述问题的解决办法就是通过环境变量来区分当前运行环境，并通过环境变量来切换不同配置文件。APISIX 中对应的环境变量就是：`APISIX_PROFILE`。
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在没有设置`APISIX_PROFILE` 时，默认使用以下三个配置文件：
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* conf/config.yaml
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* conf/apisix.yaml
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* conf/debug.yaml
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如果设置了`APISIX_PROFILE`的值为`prod`，则使用以下三个配置文件：
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* conf/config-prod.yaml
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* conf/apisix-prod.yaml
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* conf/debug-prod.yaml
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通过这种方式虽然会增加配置文件的数量，但可以独立管理，再配置git等版本管理工具，还能更好实现版本管理。
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