add otel

Author: SmilingPixel

ts-gateway-service/pom.xml

@@ -41,6 +41,20 @@
             <groupId>com.alibaba.csp</groupId>
             <artifactId>sentinel-spring-cloud-gateway-adapter</artifactId>
         </dependency>
+
+        <dependency>
+            <groupId>io.opentelemetry.javaagent</groupId>
+            <artifactId>opentelemetry-javaagent</artifactId>
+            <version>1.28.0</version>
+            <scope>compile</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.opentelemetry</groupId>
+            <artifactId>opentelemetry-sdk</artifactId>
+            <version>1.45.0</version>
+        </dependency>
+
     </dependencies>
 
     <build>

ts-gateway-service/src/main/java/gateway/TestController.java

@@ -0,0 +1,14 @@
+package gateway;
+
+import javax.servlet.http.HttpServletResponse;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class TestController {
+
+    @GetMapping("/api/v1/gateway/test")
+    public String testEndpoint() {
+        return "OK";
+    }
+}