BAEL-4546: sample app to show-case docker compose with the latest image

docker/docker-sample-app/src/main/java/com/personal/dockapp/DockAppApplication.java

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+package com.personal.dockapp;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DockAppApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(DockAppApplication.class, args);
+	}
+
+}

docker/docker-sample-app/src/main/java/com/personal/dockapp/endpoint/MyController.java

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+package com.personal.dockapp.endpoint;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class MyController {
+
+    @GetMapping
+    public String version() {
+        return "1.7";
+    }
+}

docker/docker-sample-app/src/main/resources/application.properties

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+

docker/docker-sample-app/src/test/java/com/personal/dockapp/DockAppApplicationUnitTest.java

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+package com.personal.dockapp;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class DockAppApplicationUnitTest {
+
+	@Test
+	void contextLoads() {
+	}
+
+}