feat: AOP를 이용한 서비스 로직에서의 트레이싱 Observation 추가

common/web/src/main/kotlin/com/sangdol/common/web/asepct/ServiceObservationAspect.kt

@@ -0,0 +1,25 @@
+package com.sangdol.common.web.asepct
+
+import io.micrometer.observation.Observation
+import io.micrometer.observation.ObservationRegistry
+import org.aspectj.lang.ProceedingJoinPoint
+import org.aspectj.lang.annotation.Around
+import org.aspectj.lang.annotation.Aspect
+import org.aspectj.lang.annotation.Pointcut
+
+@Aspect
+class ServiceObservationAspect(
+    private val observationRegistry: ObservationRegistry
+) {
+
+    @Pointcut("execution(* com.sangdol..business..*Service*.*(..))")
+    fun allServices() {}
+
+    @Around("allServices()")
+    fun runWithObserve(joinPoint: ProceedingJoinPoint): Any? {
+        val methodName: String = joinPoint.signature.toShortString()
+
+        return Observation.createNotStarted(methodName, observationRegistry)
+            .observe<Any?> { joinPoint.proceed() }
+    }
+}

common/web/src/main/kotlin/com/sangdol/common/web/config/ObservationConfig.kt

@@ -0,0 +1,41 @@
+package com.sangdol.common.web.config
+
+import com.sangdol.common.web.asepct.ServiceObservationAspect
+import io.micrometer.observation.ObservationPredicate
+import io.micrometer.observation.ObservationRegistry
+import io.micrometer.observation.aop.ObservedAspect
+import jakarta.servlet.http.HttpServletRequest
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.http.server.observation.ServerRequestObservationContext
+
+@Configuration
+class ObservationConfig(
+    @Value("\${management.endpoints.web.base-path}") private val actuatorPath: String
+) {
+
+    @Bean
+    fun observedAspect(observationRegistry: ObservationRegistry): ObservedAspect {
+        return ObservedAspect(observationRegistry)
+    }
+
+    @Bean
+    fun serviceObservationAspect(observationRegistry: ObservationRegistry): ServiceObservationAspect {
+        return ServiceObservationAspect(observationRegistry)
+    }
+
+    @Bean
+    fun excludeActuatorPredicate(): ObservationPredicate {
+        return ObservationPredicate { _, context ->
+            if (context !is ServerRequestObservationContext) {
+                return@ObservationPredicate true
+            }
+
+            val servletRequest: HttpServletRequest = context.carrier
+            val requestUri = servletRequest.requestURI
+
+            !requestUri.contains(actuatorPath)
+        }
+    }
+}