Spring cloud gateway configuration issue in Kubernetes service discovery - kubernetes

Question

I am trying to use spring cloud gateway with kubernetes service discovery. Below is the setup which i am using
build.gradle
plugins {
id 'org.springframework.boot' version '2.2.0.BUILD-SNAPSHOT'
id 'io.spring.dependency-management' version '1.0.8.RELEASE'
id 'java'
}
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
mavenCentral()
maven { url 'https://repo.spring.io/milestone' }
maven { url 'https://repo.spring.io/snapshot' }
}
ext {
set('springCloudVersion', "Hoxton.BUILD-SNAPSHOT")
set('springCloudKubernetesVersion', "1.0.3.RELEASE")
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-actuator'
implementation 'org.springframework.cloud:spring-cloud-starter-gateway'
implementation 'org.springframework.cloud:spring-cloud-starter-kubernetes'
implementation 'org.springframework.cloud:spring-cloud-starter-kubernetes-ribbon'
testImplementation('org.springframework.boot:spring-boot-starter-test') {
exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
}
}
dependencyManagement {
imports {
mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
mavenBom "org.springframework.cloud:spring-cloud-kubernetes-dependencies:${springCloudKubernetesVersion}"
}
}
test {
useJUnitPlatform()
}
application.yml
spring:
application.name: gateway
cloud:
gateway:
discovery:
locator:
enabled: true
kubernetes:
reload:
enabled: true
server:
port: 8080
logging:
level:
org.springframework.cloud.gateway: TRACE
org.springframework.cloud.loadbalancer: TRACE
management:
endpoints:
web:
exposure:
include: '*'
endpoint:
health:
enabled: true
info:
enabled: true
DemoApplication.java
package com.example.gateway;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import java.util.List;
#SpringBootApplication
#EnableDiscoveryClient
#RestController
public class DemoApplication {
#Autowired
private DiscoveryClient discoveryClient;
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
#GetMapping("/services")
public List<String> services() {
return this.discoveryClient.getServices();
}
}
Spring cloud gateway is not able to redirect the request to other services. The log being printed is
2019-10-13 18:29:38.303 TRACE 1 --- [or-http-epoll-2]
o.s.c.g.f.WeightCalculatorWebFilter : Weights attr: {} 2019-10-13
18:29:38.305 TRACE 1 --- [or-http-epoll-2]
o.s.c.g.h.RoutePredicateHandlerMapping : No RouteDefinition found
for [Exchange: GET http://gateway-url/service-name/hello]
Although when I call http://<gateway-url>/services, then I can see the list of all services. So all the permission is being provided at pod level and service discovery is working fine. I am pretty sure there is some configuration, which i am missing but I am not able to figure it out even after looking at documentation several times.

Answer 1

So, it looks like there is an issue in Spring Cloud Hoxton.M3 release, as it's working fine with Hoxton.M2.
I have opened an issue for the same.