Initialize Spring Boot docker branch with Drone pipeline

src/main/java/cloud/cdchen/backend/BackendApplication.java

@@ -0,0 +1,22 @@
+package cloud.cdchen.backend;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@SpringBootApplication
+public class BackendApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(BackendApplication.class, args);
+    }
+
+    @RestController
+    static class HealthController {
+        @GetMapping("/")
+        public String index() {
+            return "backend docker branch deployed";
+        }
+    }
+}

src/main/resources/application.yml

@@ -0,0 +1,6 @@
+server:
+  port: 8080
+
+spring:
+  application:
+    name: backend

src/test/java/cloud/cdchen/backend/BackendApplicationTests.java

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+package cloud.cdchen.backend;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class BackendApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+}