add zipkin

build.gradle

@@ -100,6 +100,11 @@ dependencies {
 	implementation 'org.springdoc:springdoc-openapi-starter-common:2.6.0'
 	implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.6.0'
 
+	// zipkin
+	implementation 'io.micrometer:micrometer-tracing-bridge-otel'
+	implementation 'io.opentelemetry:opentelemetry-exporter-zipkin'
+	implementation 'io.zipkin.reporter2:zipkin-sender-urlconnection'
+
 }
 liquibase {
 	activities {

src/main/resources/application.properties

@@ -3,7 +3,6 @@ server.port=8082
 spring.application.name=SoftenoJpaPostgresApp
 
 ### custom: external services
-
 com.softeno.external.url=http://localhost:4500/sample
 #com.softeno.external.url=http://localhost:8080/sample
 #com.softeno.external.url=http://localhost:8080/sample-secured
@@ -14,7 +13,6 @@ com.softeno.kafka.rx=sample_topic_2
 com.softeno.kafka.keycloak=keycloak-events
 
 ### jpa, hibernate & liquibase
-
 spring.datasource.url=jdbc:postgresql://localhost:5432/application
 spring.datasource.username=admin
 spring.datasource.password=admin
@@ -44,7 +42,6 @@ logging.level.org.springframework.jdbc.core.JdbcTemplate=DEBUG
 logging.level.org.springframework.jdbc.core.StatementCreatorUtils=TRACE
 
 ### keycloak realm config: http://localhost:8090/realms/master/.well-known/openid-configuration
-
 spring.security.oauth2.resourceserver.jwt.issuer-uri=http://localhost:8090/realms/master
 spring.security.oauth2.resourceserver.jwt.jwk-set-uri=http://localhost:8090/realms/master/protocol/openid-connect/certs
 
@@ -58,27 +55,38 @@ spring.security.oauth2.client.provider.keycloak.user-info-uri=http://localhost:8
 spring.security.oauth2.client.provider.keycloak.jwk-set-uri=http://localhost:8090/realms/master/protocol/openid-connect/certs
 
 # kafka
-
 spring.kafka.consumer.properties.spring.json.use.type.headers=false
 spring.kafka.consumer.properties.spring.json.value.default.type=com.fasterxml.jackson.databind.JsonNode
 
 # metrics, prometheus & actuator
-
 management.endpoints.web.base-path=/actuator
 management.endpoints.web.exposure.include=*
 management.endpoint.health.show-details=always
 management.endpoint.metrics.enabled=true
 management.endpoint.prometheus.enabled=true
 
 # swagger
-
 springdoc.api-docs.enabled=true
 springdoc.api-docs.path=/v3/api-docs
 springdoc.swagger-ui.path=/swagger-ui.html
 
 # resilience4j
-
 resilience4j.circuitbreaker.metrics.enabled=true
 resilience4j.retry.metrics.enabled=true
 resilience4j.ratelimiter.metrics.enabled=true
 
+## observation & zipkin
+management.tracing.enabled=true
+management.zipkin.tracing.endpoint=http://localhost:9411/api/v2/spans
+management.tracing.sampling.probability=1.0
+management.tracing.propagation.consume=b3
+management.tracing.propagation.produce=b3
+management.tracing.propagation.type=b3
+
+spring.kafka.template.observation-enabled=true
+spring.kafka.listener.observation-enabled=true
+management.tracing.baggage.correlation.enabled=true
+management.tracing.baggage.enabled=true
+management.tracing.baggage.correlation.fields=spanId,traceId
+
+management.otlp.metrics.export.enabled=true