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buildmaster
2018-11-19 21:17:48 +00:00
parent 5da6bef5df
commit ed441b8325
6 changed files with 67 additions and 27 deletions
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spring-cloud-netflix.xml
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@@ -1614,6 +1614,23 @@ public class ZuulConfig {
<simpara>Use this filter carefully. The filter acts on the <literal>Location</literal> header of ALL <literal>3XX</literal> response codes, which may not be appropriate in all scenarios, such as when redirecting the user to an external URL.</simpara>
</caution>
</section>
<section xml:id="_enabling_cross_origin_requests">
<title>Enabling Cross Origin Requests</title>
<simpara>By default Zuul routes all Cross Origin requests (CORS) to the services. If you want instead Zuul to handle these requests it can be done by providing custom <literal>WebMvcConfigurer</literal> bean:</simpara>
<programlisting language="java" linenumbering="unnumbered">@Bean
public WebMvcConfigurer corsConfigurer() {
return new WebMvcConfigurer() {
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/path-1/**")
.allowedOrigins("http://allowed-origin.com")
.allowedMethods("GET", "POST");
}
};
}</programlisting>
<simpara>In the example above, we allow <literal>GET</literal> and <literal>POST</literal> methods from <literal><link xl:href="http://allowed-origin.com">http://allowed-origin.com</link></literal> to send cross-origin requests to the endpoints starting with <literal>path-1</literal>.
You can apply CORS configuration to a specific path pattern or globally for the whole application, using <literal>/**</literal> mapping.
You can customize properties: <literal>allowedOrigins</literal>,<literal>allowedMethods</literal>,<literal>allowedHeaders</literal>,<literal>exposedHeaders</literal>,<literal>allowCredentials</literal> and <literal>maxAge</literal> via this configuration.</simpara>
</section>
<section xml:id="_metrics">
<title>Metrics</title>
<simpara>Zuul will provide metrics under the Actuator metrics endpoint for any failures that might occur when routing requests.
@@ -1994,6 +2011,7 @@ might result in a YAML document resembling the following:</simpara>
info:
description: Spring Cloud Samples
url: https://github.com/spring-cloud-samples</programlisting>
<simpara>To enable the health check request to accept all certificates when using HTTPs set <literal>sidecar.accept-all-ssl-certificates</literal> to `true.</simpara>
</chapter>
<chapter xml:id="retrying-failed-requests">
<title>Retrying Failed Requests</title>
@@ -2006,12 +2024,12 @@ When Spring Retry is present, load-balanced <literal>RestTemplates</literal>, Fe
<section xml:id="_backoff_policies">
<title>BackOff Policies</title>
<simpara>By default, no backoff policy is used when retrying requests.
If you would like to configure a backoff policy, you need to create a bean of type <literal>LoadBalancedBackOffPolicyFactory</literal>, which is used to create a <literal>BackOffPolicy</literal> for a given service, as shown in the following example:</simpara>
If you would like to configure a backoff policy, you need to create a bean of type <literal>LoadBalancedRetryFactory</literal> and override the <literal>createBackOffPolicy</literal> method for a given service, as shown in the following example:</simpara>
<programlisting language="java" linenumbering="unnumbered">@Configuration
public class MyConfiguration {
@Bean
LoadBalancedBackOffPolicyFactory backOffPolicyFactory() {
return new LoadBalancedBackOffPolicyFactory() {
LoadBalancedRetryFactory retryFactory() {
return new LoadBalancedRetryFactory() {
@Override
public BackOffPolicy createBackOffPolicy(String service) {
return new ExponentialBackOffPolicy();