Metrics with Prometheus issue using JHipster 6.0.1 (The elements [jhipster.metrics.prometheus.enabled] were left unbound.) - jhipster

Question

I'm getting an error running my JHipster application with Prometheus configuration for metrics.
I use the configuration from the official website :
https://www.jhipster.tech/monitoring/
In my application-dev.yml I have :
metrics:
prometheus:
enabled: true
And my class for auth is :
#Configuration
#Order(1)
#ConditionalOnProperty(prefix = "jhipster", name = "metrics.prometheus.enabled")
public class BasicAuthConfiguration extends WebSecurityConfigurerAdapter {
#Override
protected void configure(HttpSecurity http) throws Exception {
http
.antMatcher("/management/prometheus/**")
.authorizeRequests()
.anyRequest().hasAuthority(AuthoritiesConstants.ADMIN)
.and()
.httpBasic().realmName("jhipster")
.and()
.sessionManagement()
.sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and().csrf().disable();
}
}
2019-06-25 12:22:52.693 INFO 13260 --- [ restartedMain] com.ex.App : The following profiles are active: dev,swagger
2019-06-25 12:22:55.170 WARN 13260 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'undertowServletWebServerFactory' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/ServletWebServerFactoryConfiguration$EmbeddedUndertow.class]: Initialization of bean failed; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'webConfigurer' defined in file [/home/eclipse-workspace/back_docker/target/classes/com/ex/config/WebConfigurer.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.boot.context.properties.ConfigurationPropertiesBindException: Error creating bean with name 'io.github.jhipster.config.JHipsterProperties': Could not bind properties to 'JHipsterProperties' : prefix=jhipster, ignoreInvalidFields=false, ignoreUnknownFields=false; nested exception is org.springframework.boot.context.properties.bind.BindException: Failed to bind properties under 'jhipster' to io.github.jhipster.config.JHipsterProperties
2019-06-25 12:22:55.188 ERROR 13260 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Binding to target [Bindable#7585af55 type = io.github.jhipster.config.JHipsterProperties, value = 'provided', annotations = array<Annotation>[#org.springframework.boot.context.properties.ConfigurationProperties(ignoreInvalidFields=false, ignoreUnknownFields=false, value=jhipster, prefix=jhipster)]] failed:
Property: jhipster.metrics.prometheus.enabled
Value: true
Origin: class path resource [config/application-dev.yml]:128:22
Reason: The elements [jhipster.metrics.prometheus.enabled] were left unbound.
Action:
Update your application's configuration
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 11.679 s
[INFO] Finished at: 2019-06-25T12:22:55+02:00
[INFO] ------------------------------------------------------------------------

Answer 1

I changed my JHipster project from microservice application to microservice gateway and it solved this issue.