spring-security/docs/modules/ROOT/pages/reactive/integrations/observability.adoc

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[[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<ObservationRegistry> 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<ObservationRegistry> {
return registry: ObservationRegistry -> registry.observationConfig()
.observationHandler(ObservationTextHandler());
}
fun main(args: Array<String>) {
runApplication<MyApplication>(*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() {
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> {
ObservationRegistry registry = ObservationRegistry.create()
registry.observationConfig().observationHandler(ObservationTextHandler())
return registry
}
fun main(args: Array<String>) {
runApplication<MyApplication>(*args)
}
}
----
.Xml
[source,kotlin,role="secondary"]
----
<sec:http auto-config="true" observation-registry-ref="ref">
<sec:intercept-url pattern="/**" access="authenticated"/>
</sec:http>
<!-- define and configure ObservationRegistry bean -->
----
====
[[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<ObservationRegistry> noSpringSecurityObservations() {
ObservationPredicate predicate = (name, context) -> !name.startsWith("spring.security.");
return (registry) -> registry.observationConfig().observationPredicate(predicate);
}
----
.Kotlin
[source,kotlin,role="secondary"]
----
@Bean
fun noSpringSecurityObservations(): ObservationRegistryCustomizer<ObservationRegistry> {
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