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<title>4.&nbsp;Distributed Configuration with Consul</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="multi_spring-cloud-consul.html" title="Spring Cloud Consul"><link rel="up" href="multi_spring-cloud-consul.html" title="Spring Cloud Consul"><link rel="prev" href="multi_spring-cloud-consul-discovery.html" title="3.&nbsp;Service Discovery with Consul"><link rel="next" href="multi_spring-cloud-consul-retry.html" title="5.&nbsp;Consul Retry"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">4.&nbsp;Distributed Configuration with Consul</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi_spring-cloud-consul-discovery.html">Prev</a>&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi_spring-cloud-consul-retry.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="spring-cloud-consul-config" href="#spring-cloud-consul-config"></a>4.&nbsp;Distributed Configuration with Consul</h1></div></div></div><p>Consul provides a <a class="link" href="https://consul.io/docs/agent/http/kv.html" target="_top">Key/Value Store</a> for storing configuration and other metadata. Spring Cloud Consul Config is an alternative to the <a class="link" href="https://github.com/spring-cloud/spring-cloud-config" target="_top">Config Server and Client</a>. Configuration is loaded into the Spring Environment during the special "bootstrap" phase. Configuration is stored in the <code class="literal">/config</code> folder by default. Multiple <code class="literal">PropertySource</code> instances are created based on the application&#8217;s name and the active profiles that mimicks the Spring Cloud Config order of resolving properties. For example, an application with the name "testApp" and with the "dev" profile will have the following property sources created:</p><pre class="screen">config/testApp,dev/
<title>4.&nbsp;Distributed Configuration with Consul</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.79.1"><link rel="home" href="multi_spring-cloud-consul.html" title="Spring Cloud Consul"><link rel="up" href="multi_spring-cloud-consul.html" title="Spring Cloud Consul"><link rel="prev" href="multi_spring-cloud-consul-discovery.html" title="3.&nbsp;Service Discovery with Consul"><link rel="next" href="multi_spring-cloud-consul-retry.html" title="5.&nbsp;Consul Retry"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">4.&nbsp;Distributed Configuration with Consul</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi_spring-cloud-consul-discovery.html">Prev</a>&nbsp;</td><th width="60%" align="center">&nbsp;</th><td width="20%" align="right">&nbsp;<a accesskey="n" href="multi_spring-cloud-consul-retry.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="spring-cloud-consul-config" href="#spring-cloud-consul-config"></a>4.&nbsp;Distributed Configuration with Consul</h1></div></div></div><p>Consul provides a <a class="link" href="https://consul.io/docs/agent/http/kv.html" target="_top">Key/Value Store</a> for storing configuration and other metadata. Spring Cloud Consul Config is an alternative to the <a class="link" href="https://github.com/spring-cloud/spring-cloud-config" target="_top">Config Server and Client</a>. Configuration is loaded into the Spring Environment during the special "bootstrap" phase. Configuration is stored in the <code class="literal">/config</code> folder by default. Multiple <code class="literal">PropertySource</code> instances are created based on the application&#8217;s name and the active profiles that mimicks the Spring Cloud Config order of resolving properties. For example, an application with the name "testApp" and with the "dev" profile will have the following property sources created:</p><pre class="screen">config/testApp,dev/
config/testApp/
config/application,dev/
config/application/</pre><p>The most specific property source is at the top, with the least specific at the bottom. Properties in the <code class="literal">config/application</code> folder are applicable to all applications using consul for configuration. Properties in the <code class="literal">config/testApp</code> folder are only available to the instances of the service named "testApp".</p><p>Configuration is currently read on startup of the application. Sending a HTTP POST to <code class="literal">/refresh</code> will cause the configuration to be reloaded. <a class="xref" href="multi_spring-cloud-consul-config.html#spring-cloud-consul-config-watch" title="4.3&nbsp;Config Watch">Section&nbsp;4.3, &#8220;Config Watch&#8221;</a> will also automatically detect changes and reload the application context.</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_how_to_activate_2" href="#_how_to_activate_2"></a>4.1&nbsp;How to activate</h2></div></div></div><p>To get started with Consul Configuration use the starter with group <code class="literal">org.springframework.cloud</code> and artifact id <code class="literal">spring-cloud-starter-consul-config</code>. See the <a class="link" href="http://projects.spring.io/spring-cloud/" target="_top">Spring Cloud Project page</a> for details on setting up your build system with the current Spring Cloud Release Train.</p><p>This will enable auto-configuration that will setup Spring Cloud Consul Config.</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_customizing" href="#_customizing"></a>4.2&nbsp;Customizing</h2></div></div></div><p>Consul Config may be customized using the following properties:</p><p><b>bootstrap.yml.&nbsp;</b>