Finally got tempo working..phew

Author: Nasruddin

.idea/workspace.xml

@@ -5,10 +5,11 @@ services:
     environment:
       - SPRING_PROFILES_ACTIVE=docker
       - JAVA_TOOL_OPTIONS="-javaagent:/application/BOOT-INF/lib/opentelemetry-javaagent-2.13.3.jar" #maven will place jar in BOOT-INF as per dep mentioned in pom. This will instruct the JVM to run the OpenTelemetry Java agent from the path.
-      - OTEL_TRACES_EXPORTER=logging
+      - OTEL_TRACES_EXPORTER=otlp
       - OTEL_METRICS_EXPORTER=none
       - OTEL_LOGS_EXPORTER=none
       - OTEL_METRIC_EXPORT_INTERVAL=15000
+      - OTEL_EXPORTER_OTLP_ENDPOINT=http://tempo:4318
     logging:
       driver: fluentd
       options:
@@ -25,10 +26,11 @@ services:
     environment:
       - SPRING_PROFILES_ACTIVE=docker
       - JAVA_TOOL_OPTIONS="-javaagent:/application/BOOT-INF/lib/opentelemetry-javaagent-2.13.3.jar" #maven will place jar in BOOT-INF as per dep mentioned in pom. This will instruct the JVM to run the OpenTelemetry Java agent from the path.
-      - OTEL_TRACES_EXPORTER=logging
+      - OTEL_TRACES_EXPORTER=otlp
       - OTEL_METRICS_EXPORTER=none
       - OTEL_LOGS_EXPORTER=none
       - OTEL_METRIC_EXPORT_INTERVAL=15000
+      - OTEL_EXPORTER_OTLP_ENDPOINT=http://tempo:4318
     logging:
       driver: fluentd
       options:
@@ -47,10 +49,13 @@ services:
     environment:
       - SPRING_PROFILES_ACTIVE=docker
       - JAVA_TOOL_OPTIONS="-javaagent:/application/BOOT-INF/lib/opentelemetry-javaagent-2.13.3.jar" #maven will place jar in BOOT-INF as per dep mentioned in pom. This will instruct the JVM to run the OpenTelemetry Java agent from the path.
-      - OTEL_TRACES_EXPORTER=logging
+      - OTEL_TRACES_EXPORTER=otlp
       - OTEL_METRICS_EXPORTER=none
       - OTEL_LOGS_EXPORTER=none
       - OTEL_METRIC_EXPORT_INTERVAL=15000
+      - OTEL_INSTRUMENTATION_SPRING_WEB_EXCLUDE_PATTERNS=/actuator/prometheus
+      - OTEL_EXPORTER_OTLP_ENDPOINT=http://tempo:4318
+
     logging:
       driver: fluentd
       options:
@@ -66,10 +71,11 @@ services:
     environment:
       - SPRING_PROFILES_ACTIVE=docker
       - JAVA_TOOL_OPTIONS="-javaagent:/application/BOOT-INF/lib/opentelemetry-javaagent-2.13.3.jar" #maven will place jar in BOOT-INF as per dep mentioned in pom. This will instruct the JVM to run the OpenTelemetry Java agent from the path.
-      - OTEL_TRACES_EXPORTER=logging
+      - OTEL_TRACES_EXPORTER=otlp
       - OTEL_METRICS_EXPORTER=none
       - OTEL_LOGS_EXPORTER=none
       - OTEL_METRIC_EXPORT_INTERVAL=15000
+      - OTEL_EXPORTER_OTLP_ENDPOINT=http://tempo:4318
     logging:
       driver: fluentd
       options:

docker/docker-compose-base.yml

@@ -53,8 +53,11 @@ services:
     ports:
       - "4317:4317" # OTLP gRPC
       - "4318:4318" # OTLP HTTP
+      - "3200:3200" # Tempo HTTP server (for querying)
     volumes:
       - ./tempo/tempo.yml:/etc/tempo-config.yml
+    networks:
+      - shared-network
 
 networks:
   shared-network:

docker/docker-compose-observability.yml

@@ -1,12 +1,15 @@
 server:
-  http_listen_port: 3100
+  http_listen_address: 0.0.0.0
+  http_listen_port: 3200
 
 distributor:
   receivers:
     otlp:
       protocols:
         grpc:
+          endpoint: 0.0.0.0:4317
         http:
+          endpoint: 0.0.0.0:4318
 
 storage:
   trace:
@@ -15,4 +18,4 @@ storage:
       path: /tmp/tempo/blocks
 
 usage_report:
-  reporting_enabled: false
+  reporting_enabled: false

docker/tempo/tempo.yml

@@ -15,7 +15,7 @@ logging:
     root: INFO
     io.javatab.microservices.composite.course: DEBUG
   pattern:
-    console: "%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] [%X{traceId:-N/A}] [%X{spanId:-N/A}] %-5level %logger{36} - %msg%n"
+    console: "%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] [%X{trace_id:-N/A}] [%X{span_id:-N/A}] %-5level %logger{36} - %msg%n"
 
 
   # Security related properties

microservices/course-composite-service/src/main/resources/application.yml

@@ -32,7 +32,7 @@ logging:
     root: INFO
     io.javatab.microservices.core.course: DEBUG
   pattern:
-    console: "%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] [%X{traceId:-N/A}] [%X{spanId:-N/A}] %-5level %logger{36} - %msg%n"
+    console: "%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] [%X{trace_id:-N/A}] [%X{span_id:-N/A}] %-5level %logger{36} - %msg%n"
 
 management:
   endpoints:

microservices/course-service/src/main/resources/application.yml

@@ -25,7 +25,7 @@ logging:
     root: INFO
     io.javatab.microservices.composite.review: DEBUG
   pattern:
-    console: "%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] [%X{traceId:-N/A}] [%X{spanId:-N/A}] %-5level %logger{36} - %msg%n"
+    console: "%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] [%X{trace_id:-N/A}] [%X{span_id:-N/A}] %-5level %logger{36} - %msg%n"
 management:
   endpoints:
     web: