feat: add OpenTelemetry log exporter to victoria logs.

build.gradle.kts

@@ -65,11 +65,13 @@ dependencyManagement {
 // https://javadoc.io/doc/org.mockito/mockito-core/latest/org.mockito/org/mockito/Mockito.html#0.3
 val mockitoAgent = configurations.create("mockitoAgent")
 dependencies {
+    implementation("org.springframework.boot:spring-boot-starter-actuator")
     implementation("org.springframework.boot:spring-boot-starter-validation")
     implementation("org.springframework.boot:spring-boot-starter-webflux")
     implementation("org.springframework.cloud:spring-cloud-starter-consul-config")
     compileOnly("org.projectlombok:lombok")
     annotationProcessor("org.projectlombok:lombok")
+    runtimeOnly("io.micrometer:micrometer-registry-prometheus")
 
     // clevermicro
     implementation("com.cleverthis.clevermicro:core:0.2.0-SNAPSHOT")
@@ -77,6 +79,10 @@ dependencies {
     // keycloak admin client
     implementation("org.keycloak:keycloak-admin-client:26.0.6")
 
+    // opentelemetry
+    implementation(platform("io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom:2.11.0"))
+    implementation("io.opentelemetry.instrumentation:opentelemetry-spring-boot-starter")
+
     testImplementation("org.springframework.boot:spring-boot-starter-test")
     testImplementation("io.projectreactor:reactor-test")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")

src/main/resources/application.yml

@@ -55,3 +55,25 @@ logging:
     com.clevermicro.authservice: DEBUG
     org.springframework.web.client.RestTemplate: DEBUG
     reactor.netty.http.client: DEBUG
+
+# Enable prometheus endpoint
+management:
+  endpoint:
+    prometheus:
+      access: read_only
+    web:
+      exposure:
+        include: health,prometheus
+# OpenTelemetry
+otel:
+  logs:
+    exporter: otlp
+  exporter:
+    otlp:
+      logs:
+        endpoint: ${OTLP_LOG_ENDPOINT:http://victorialogs.dev.localhost/insert/opentelemetry/v1/logs}
+  # for now disable the tracing and metrics exporter
+  traces:
+    exporter: none
+  metrics:
+    exporter: none

src/test/resources/application.yml

@@ -0,0 +1,12 @@
+spring:
+  cloud:
+    consul:
+      config:
+        enabled: false
+otel:
+  logs:
+    exporter: none
+  traces:
+    exporter: none
+  metrics:
+    exporter: none