Connect "MicroService Gateway" with "UAA Server" Jhipster 3.5.0 - jhipster

Question

I created a UAA Server:
? (1/16) Which *type* of application would you like to create? [BETA] JHipster UAA server (for microservice OAuth2 authentication)
And I created a Microservicio Gateway:
? (1/16) Which *type* of application would you like to create? Microservice gateway
...
? (6/16) What is the folder path of your UAA application?. ../elseruaa
I created the docker containers, in "docker-compose", and creates well.
I have to add some extra configuration on the gateway to work with the server UAA?
I get the following error trace in the container gateway:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.setFilterChainProxySecurityConfigurer(org.springframework.security.config.annotation.ObjectPostProcessor,java.util.List) throws java.lang.Exception; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.security.oauth2.provider.token.TokenStore org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfiguration.tokenStore; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tokenStore' defined in class path resource [com/abalia/elser/config/MicroserviceSecurityConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.security.oauth2.provider.token.TokenStore]: Factory method 'tokenStore' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jwtAccessTokenConverter' defined in class path resource [com/abalia/elser/config/MicroserviceSecurityConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter]: Factory method 'jwtAccessTokenConverter' threw exception; nested exception is java.lang.IllegalStateException: No instances available for elseruaa...
Thank you very much for your help.

Answer 1

I created a youtube screencast to show how to create jhipster (3.5.1) microservices with UAA. I believe the problems you are facing have to do with the order of startup of services or that old services were not regenerated with 3.5.0+ code. As you can see in the screencast and from the sourcecode on github, it works as is.
screencast

Answer 2

I had the same issue. After spending hours, finally fixed the error by adding following in MicroserviceSecurityConfiguration.java:
Inject org.springframework.cloud.client.discovery.DiscoveryClient
#Inject
private DiscoveryClient discoveryClient;
In any method of MicroserviceSecurityConfiguration.java (I choose getKeyFromAuthorizationServer method), add following:
discoveryClient.getServices();

Answer 3

Caused by: java.lang.IllegalStateException: No instances available for elseruaa reported by RibbonLoadBalancerClient.
I'm not up to date with our uaa support but it seems that your gateway was unable to find a service named elseruaa in the list of Eureka clients that have registered to your JHipster registry (Eureka server). So either you forgot to start elseruaa or it registered with another name.

Answer 4

Change your MobileSecurityConfiguration
#Inject
private DiscoveryClient discoveryClient;
private String getKeyFromAuthorizationServer() {
List<String> services = discoveryClient.getServices();
HttpEntity<Void> request = new HttpEntity<Void>(new HttpHeaders());
String value = (String) this.keyUriRestTemplate
.exchange("http://uaa/oauth/token_key", HttpMethod.GET, request, Map.class).getBody()
.get("value");
return value;
}
so basically that one line :
List<String> services = discoveryClient.getServices();
fix that problem.