fix: jetzt auch mit Postgres und Traces für Postgres

compose.yml

@@ -1,5 +1,13 @@
 version: '3'
 services:
+  postgres:
+    image: postgres:16
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: postgres
+    ports:
+      - 5432:5432
   prometheus:
     image: prom/prometheus
     command:

pom.xml

@@ -22,6 +22,22 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-web</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.postgresql</groupId>
+			<artifactId>postgresql</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-actuator</artifactId>
@@ -36,7 +52,6 @@
 			<artifactId>micrometer-tracing-bridge-otel</artifactId>
 			<scope>runtime</scope>
 		</dependency>
-
 		<dependency>
 			<groupId>io.opentelemetry</groupId>
 			<artifactId>opentelemetry-exporter-otlp</artifactId>
@@ -50,11 +65,6 @@
 			<artifactId>opentelemetry-instrumentation-annotations</artifactId>
 		</dependency>
 
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
 	</dependencies>
 	<dependencyManagement>
 		<dependencies>

src/main/java/trutzio/devopstools/EchoController.java

@@ -1,16 +1,28 @@
 package trutzio.devopstools;
 
+import java.util.UUID;
+
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
-import io.opentelemetry.instrumentation.annotations.WithSpan;
-
 @RestController
 public class EchoController {
 
+    private final PersonRepository personRepository;
+
+    public EchoController(PersonRepository personRepository) {
+        this.personRepository = personRepository;
+    }
+
     @GetMapping("/")
-    @WithSpan(value = "test span")
+    // @WithSpan(value = "test span")
     public String echo() throws InterruptedException {
+        for (int i = 0; i < 10; i++) {
+            Person person = new Person();
+            person.id = UUID.randomUUID().toString();
+            person.name = "John Doe " + i;
+            personRepository.save(person);
+        }
         return "OK";
     }
 

src/main/java/trutzio/devopstools/Person.java

@@ -0,0 +1,13 @@
+package trutzio.devopstools;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+@Entity
+public class Person {
+
+    @Id
+    String id;
+    String name;
+
+}

src/main/java/trutzio/devopstools/PersonRepository.java

@@ -0,0 +1,7 @@
+package trutzio.devopstools;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface PersonRepository extends JpaRepository<Person, String> {
+
+}

src/main/resources/application.yml

@@ -1,6 +1,14 @@
 spring:
     application:
         name: devops-tools
+    datasource:
+        url: jdbc:postgresql://localhost:5432/postgres
+        username: postgres
+        password: postgres
+    jpa:
+        database-platform: org.hibernate.dialect.PostgreSQLDialect
+        hibernate:
+            ddl-auto: update
 management:
     tracing:
         enabled: true