[[webflux-observability]] = Observability Spring Security integrates with Spring Observability out-of-the-box for tracing; though it's also quite simple to configure for gathering metrics. [[webflux-observability-tracing]] == Tracing When an `ObservationRegistry` bean is present, Spring Security creates traces for: * the filter chain * the `ReactiveAuthenticationManager`, and * the `ReactiveAuthorizationManager` [[webflux-observability-tracing-boot]] === Boot Integration For example, consider a simple Boot application: ==== .Java [source,java,role="primary"] ---- @SpringBootApplication public class MyApplication { @Bean public ReactiveUserDetailsService userDetailsService() { return new MapReactiveUserDetailsManager( User.withDefaultPasswordEncoder() .username("user") .password("password") .authorities("app") .build() ); } @Bean ObservationRegistryCustomizer addTextHandler() { return (registry) -> registry.observationConfig().observationHandler(new ObservationTextHandler()); } public static void main(String[] args) { SpringApplication.run(ListenerSamplesApplication.class, args); } } ---- .Kotlin [source,kotlin,role="secondary"] ---- @SpringBootApplication class MyApplication { @Bean fun userDetailsService(): ReactiveUserDetailsService { MapReactiveUserDetailsManager( User.withDefaultPasswordEncoder() .username("user") .password("password") .authorities("app") .build() ); } @Bean fun addTextHandler(): ObservationRegistryCustomizer { return registry: ObservationRegistry -> registry.observationConfig() .observationHandler(ObservationTextHandler()); } fun main(args: Array) { runApplication(*args) } } ---- ==== And a corresponding request: ==== [source,bash] ---- ?> http -a user:password :8080 ---- ==== Will produce the following output (indentation added for clarity): ==== [source,bash] ---- START - name='http.server.requests', contextualName='null', error='null', lowCardinalityKeyValues=[], highCardinalityKeyValues=[], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@5dfdb78', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=0.00191856, duration(nanos)=1918560.0, startTimeNanos=101177265022745}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@121549e0'] START - name='spring.security.http.chains', contextualName='spring.security.http.chains.before', error='null', lowCardinalityKeyValues=[chain.size='14', filter.section='before'], highCardinalityKeyValues=[request.line='/'], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@3932a48c', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=4.65777E-4, duration(nanos)=465777.0, startTimeNanos=101177276300777}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@562db70f'] STOP - name='spring.security.http.chains', contextualName='spring.security.http.chains.before', error='null', lowCardinalityKeyValues=[chain.size='14', filter.section='before'], highCardinalityKeyValues=[request.line='/'], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@3932a48c', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=0.003733105, duration(nanos)=3733105.0, startTimeNanos=101177276300777}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@562db70f'] START - name='spring.security.authentications', contextualName='null', error='null', lowCardinalityKeyValues=[authentication.failure.type='Optional', authentication.method='UserDetailsRepositoryReactiveAuthenticationManager', authentication.request.type='UsernamePasswordAuthenticationToken'], highCardinalityKeyValues=[], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@574ba6cd', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=3.21015E-4, duration(nanos)=321015.0, startTimeNanos=101177336038417}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@49202cc7'] STOP - name='spring.security.authentications', contextualName='null', error='null', lowCardinalityKeyValues=[authentication.failure.type='Optional', authentication.method='UserDetailsRepositoryReactiveAuthenticationManager', authentication.request.type='UsernamePasswordAuthenticationToken', authentication.result.type='UsernamePasswordAuthenticationToken'], highCardinalityKeyValues=[], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@574ba6cd', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=0.37574992, duration(nanos)=3.7574992E8, startTimeNanos=101177336038417}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@49202cc7'] START - name='spring.security.authorizations', contextualName='null', error='null', lowCardinalityKeyValues=[object.type='SecurityContextServerWebExchange'], highCardinalityKeyValues=[], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@6f837332', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=2.65687E-4, duration(nanos)=265687.0, startTimeNanos=101177777941381}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@7f5bc7cb'] STOP - name='spring.security.authorizations', contextualName='null', error='null', lowCardinalityKeyValues=[authorization.decision='true', object.type='SecurityContextServerWebExchange'], highCardinalityKeyValues=[authentication.authorities='[app]', authorization.decision.details='AuthorizationDecision [granted=true]'], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@6f837332', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=0.039239047, duration(nanos)=3.9239047E7, startTimeNanos=101177777941381}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@7f5bc7cb'] START - name='spring.security.http.secured.requests', contextualName='null', error='null', lowCardinalityKeyValues=[], highCardinalityKeyValues=[], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@2f33dfae', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=3.1775E-4, duration(nanos)=317750.0, startTimeNanos=101177821377592}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@63b0d28f'] STOP - name='spring.security.http.secured.requests', contextualName='null', error='null', lowCardinalityKeyValues=[], highCardinalityKeyValues=[], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@2f33dfae', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=0.219901971, duration(nanos)=2.19901971E8, startTimeNanos=101177821377592}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@63b0d28f'] START - name='spring.security.http.chains', contextualName='spring.security.http.chains.after', error='null', lowCardinalityKeyValues=[chain.size='14', filter.section='after'], highCardinalityKeyValues=[request.line='/'], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@40b25623', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=3.25118E-4, duration(nanos)=325118.0, startTimeNanos=101178044824275}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@3b6cec2'] STOP - name='spring.security.http.chains', contextualName='spring.security.http.chains.after', error='null', lowCardinalityKeyValues=[chain.size='14', filter.section='after'], highCardinalityKeyValues=[request.line='/'], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@40b25623', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=0.001693146, duration(nanos)=1693146.0, startTimeNanos=101178044824275}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@3b6cec2'] STOP - name='http.server.requests', contextualName='null', error='null', lowCardinalityKeyValues=[], highCardinalityKeyValues=[], map=[class io.micrometer.tracing.handler.TracingObservationHandler$TracingContext='io.micrometer.tracing.handler.TracingObservationHandler$TracingContext@5dfdb78', class io.micrometer.core.instrument.LongTaskTimer$Sample='SampleImpl{duration(seconds)=0.784320641, duration(nanos)=7.84320641E8, startTimeNanos=101177265022745}', class io.micrometer.core.instrument.Timer$Sample='io.micrometer.core.instrument.Timer$Sample@121549e0'] ---- ==== [[webflux-observability-tracing-manual-configuration]] === Manual Configuration For a non-Spring Boot application, or to override the existing Boot configuration, you can publish your own `ObservationRegistry` and Spring Security will still pick it up. ==== .Java [source,java,role="primary"] ---- @SpringBootApplication public class MyApplication { @Bean public ReactiveUserDetailsService userDetailsService() { return new MapReactiveUserDetailsManager( User.withDefaultPasswordEncoder() .username("user") .password("password") .authorities("app") .build() ); } @Bean ObservationRegistry observationRegistry() { ObservationRegistry registry = ObservationRegistry.create(); registry.observationConfig().observationHandler(new ObservationTextHandler()); return registry; } public static void main(String[] args) { SpringApplication.run(ListenerSamplesApplication.class, args); } } ---- .Kotlin [source,kotlin,role="secondary"] ---- @SpringBootApplication class MyApplication { @Bean fun userDetailsService(): ReactiveUserDetailsService { MapReactiveUserDetailsManager( User.withDefaultPasswordEncoder() .username("user") .password("password") .authorities("app") .build() ); } @Bean fun observationRegistry(): ObservationRegistry { ObservationRegistry registry = ObservationRegistry.create() registry.observationConfig().observationHandler(ObservationTextHandler()) return registry } fun main(args: Array) { runApplication(*args) } } ---- .Xml [source,kotlin,role="secondary"] ---- ---- ==== [[webflux-observability-tracing-disable]] === Disabling Observability If you don't want any Spring Security observations, in a Spring Boot application you can publish a `ObservationRegistry.NOOP` `@Bean`. However, this may turn off observations for more than just Spring Security. Instead, you can alter the provided `ObservationRegistry` with an `ObservationPredicate` like the following: ==== .Java [source,java,role="primary"] ---- @Bean ObservationRegistryCustomizer noSpringSecurityObservations() { ObservationPredicate predicate = (name, context) -> name.startsWith("spring.security.") return (registry) -> registry.observationConfig().observationPredicate(predicate) } ---- .Kotlin [source,kotlin,role="secondary"] ---- @Bean fun noSpringSecurityObservations(): ObservationRegistryCustomizer { ObservationPredicate predicate = (name: String, context: Observation.Context) -> name.startsWith("spring.security.") (registry: ObservationRegistry) -> registry.observationConfig().observationPredicate(predicate) } ---- ==== [TIP] There is no facility for disabling observations with XML support. Instead, simply do not set the `observation-registry-ref` attribute. [[webflux-observability-tracing-listing]] === Trace Listing Spring Security tracks the following spans on each request: 1. `spring.security.http.requests` - a span that wraps the entire filter chain, including the request 2. `spring.security.http.chains.before` - a span that wraps the receiving part of the security filters 3. `spring.security.http.chains.after` - a span that wraps the returning part of the security filters 4. `spring.security.http.secured.requests` - a span that wraps the now-secured application request 5. `spring.security.http.unsecured.requests` - a span that wraps requests that Spring Security does not secure 6. `spring.security.authentications` - a span that wraps authentication attempts 7. `spring.security.authorizations` - a span that wraps authorization attempts [TIP] `spring.security.http.chains.before` + `spring.security.http.secured.requests` + `spring.security.http.chains.after` = `spring.security.http.requests` `spring.security.http.chains.before` + `spring.security.http.chains.after` = Spring Security's part of the request