Observability（可观察性）

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Spring Security与Spring Observability进行了开箱即用的整合，以进行追踪；虽然它的配置也很简单，可以用来收集指标。

Tracing

当一个 ObservationRegistry Bean出现时，Spring Security为其创建trace：

filter chain
ReactiveAuthenticationManager
ReactiveAuthorizationManager

Boot 整合

例如，考虑一个简单的Boot应用程序。

Java
Kotlin

@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);
	}
}

@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)
	}
}

以及相应的请求。

?> http -a user:password :8080

将产生以下输出（为清晰起见增加了缩进）。

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']

手动配置

对于非Spring Boot应用程序，或覆盖现有的Boot配置，你可以发布你自己的 ObservationRegistry，Spring Security仍然会接收它。

Java
Kotlin
Xml

@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);
	}
}

@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)
	}
}

<sec:http auto-config="true" observation-registry-ref="ref">
	<sec:intercept-url pattern="/**" access="authenticated"/>
</sec:http>

<!-- define and configure ObservationRegistry bean -->

禁用可观察性

如果你不想要任何Spring Security观察，在Spring Boot应用程序中，你可以发布一个 ObservationRegistry.NOOP @Bean。然而，这可能会关闭不止是 Spring Security 的观察。

相反，你可以用如下的 ObservationPredicate 改变提供的 ObservationRegistry。

Java
Kotlin

@Bean
ObservationRegistryCustomizer<ObservationRegistry> noSpringSecurityObservations() {
	ObservationPredicate predicate = (name, context) -> !name.startsWith("spring.security.")
	return (registry) -> registry.observationConfig().observationPredicate(predicate)
}

@Bean
fun noSpringSecurityObservations(): ObservationRegistryCustomizer<ObservationRegistry> {
	ObservationPredicate predicate = (name: String, context: Observation.Context) -> !name.startsWith("spring.security.")
	(registry: ObservationRegistry) -> registry.observationConfig().observationPredicate(predicate)
}

在 XML 支持下，没有禁用观察的设施。相反，只需不设置 observation-registry-ref 属性。

Trace 列表

Spring Security在每个请求上跟踪以下span。

spring.security.http.requests - 涵盖整个 filter 链的span，包括请求。
spring.security.http.chains.before - 涵盖security过滤器的接收部分的span。
spring.security.http.chains.after - 涵盖security过滤器的返回部分的span。
spring.security.http.secured.requests - 涵盖现在安全的应用程序请求的span。
spring.security.http.unsecured.requests - 一个涵盖请求的span ，Spring Security不保护这些请求。
spring.security.authentications - 一个涵盖认证尝试的span 。
spring.security.authorizations - 涵盖授权尝试的span 。

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的部分请求