Sync docs from master to gh-pages

multi/multi_spring-cloud-consul-discovery.html

@@ -38,7 +38,23 @@
     consul:
       discovery:
         instanceId: ${spring.application.name}:${vcap.application.instance_id:${spring.application.instance_id:${random.value}}}</pre><p>
-</p><p>With this metadata, and multiple service instances deployed on localhost, the random value will kick in there to make the instance unique. In Cloudfoundry the <code class="literal">vcap.application.instance_id</code> will be populated automatically in a Spring Boot application, so the random value will not be needed.</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_looking_up_services" href="#_looking_up_services"></a>3.4&nbsp;Looking up services</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_using_ribbon" href="#_using_ribbon"></a>3.4.1&nbsp;Using Ribbon</h3></div></div></div><p>Spring Cloud has support for <a class="link" href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-feign" target="_top">Feign</a> (a REST client builder) and also <a class="link" href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-ribbon" target="_top">Spring <code class="literal">RestTemplate</code></a>
+</p><p>With this metadata, and multiple service instances deployed on localhost, the random value will kick in there to make the instance unique. In Cloudfoundry the <code class="literal">vcap.application.instance_id</code> will be populated automatically in a Spring Boot application, so the random value will not be needed.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_applying_headers_to_health_check_requests" href="#_applying_headers_to_health_check_requests"></a>3.3.3&nbsp;Applying Headers to Health Check Requests</h3></div></div></div><p>Headers can be applied to health check requests. For example, if you&#8217;re trying to register a <a class="link" href="https://cloud.spring.io/spring-cloud-config/" target="_top">Spring Cloud Config</a> server that uses <a class="link" href="https://github.com/spring-cloud/spring-cloud-config/blob/master/docs/src/main/asciidoc/spring-cloud-config.adoc#vault-backend" target="_top">Vault Backend</a>:</p><p><b>application.yml.&nbsp;</b>
+</p><pre class="screen">spring:
+  cloud:
+    consul:
+      discovery:
+        health-check-headers:
+          X-Config-Token: 6442e58b-d1ea-182e-cfa5-cf9cddef0722</pre><p>
+</p><p>According to the HTTP standard, each header can have more than one values, in which case, an array can be supplied:</p><p><b>application.yml.&nbsp;</b>
+</p><pre class="screen">spring:
+  cloud:
+    consul:
+      discovery:
+        health-check-headers:
+          X-Config-Token:
+            - "6442e58b-d1ea-182e-cfa5-cf9cddef0722"
+            - "Some other value"</pre><p>
+</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="_looking_up_services" href="#_looking_up_services"></a>3.4&nbsp;Looking up services</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="_using_ribbon" href="#_using_ribbon"></a>3.4.1&nbsp;Using Ribbon</h3></div></div></div><p>Spring Cloud has support for <a class="link" href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-feign" target="_top">Feign</a> (a REST client builder) and also <a class="link" href="https://github.com/spring-cloud/spring-cloud-netflix/blob/master/docs/src/main/asciidoc/spring-cloud-netflix.adoc#spring-cloud-ribbon" target="_top">Spring <code class="literal">RestTemplate</code></a>
 for looking up services using the logical service names/ids instead of physical URLs. Both Feign and the discovery-aware RestTemplate utilize <a class="link" href="http://cloud.spring.io/spring-cloud-netflix/single/spring-cloud-netflix.html#spring-cloud-ribbon" target="_top">Ribbon</a> for client-side load balancing.</p><p>If you want to access service STORES using the RestTemplate simply declare:</p><pre class="screen">@LoadBalanced
 @Bean
 public RestTemplate loadbalancedRestTemplate() {