[BAEL-6165] AWS Secrets Manager integration with Spring Boot for DB. (#13632)

* [BAEL-6165] AWS Secrets Manager integration with Spring Boot for DB.

* [BAEL-6165] Add other types of secrets as example

* [BAEL-6165] externalize version to properties

* [BTL-6165] create UserController

---------

Co-authored-by: Lukasz Wlodkowski <lukasz.w@bluestonepim.com>

spring-boot-modules/spring-boot-data-3/src/main/java/com/baeldung/startdbwithawssecretsmanager/StartWithAWSSecretsManagerApplication.java

@@ -0,0 +1,29 @@
+package com.baeldung.startdbwithawssecretsmanager;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Profile;
+
+import javax.annotation.PostConstruct;
+
+@SpringBootApplication
+@Profile("aws")
+public class StartWithAWSSecretsManagerApplication {
+    @Value("${api-key1}")
+    private String apiKeyValue1;
+
+    @Value("${api-key2}")
+    private String apiKeyValue2;
+
+    @PostConstruct
+    private void postConstruct() {
+        System.out.println(apiKeyValue1);
+        System.out.println(apiKeyValue2);
+    }
+
+    public static void main(String[] args) {
+        SpringApplication.run(StartWithAWSSecretsManagerApplication.class, args);
+    }
+
+}

spring-boot-modules/spring-boot-data-3/src/main/java/com/baeldung/startdbwithawssecretsmanager/controller/UserController.java

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+package com.baeldung.startdbwithawssecretsmanager.controller;
+
+import com.baeldung.startdbwithawssecretsmanager.model.UserEntity;
+import com.baeldung.startdbwithawssecretsmanager.repository.UserRepository;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("users")
+public class UserController {
+
+    private final UserRepository userRepository;
+
+    public UserController(UserRepository userRepository) {
+        this.userRepository = userRepository;
+    }
+
+    @GetMapping(value = "/{id}", produces = "application/json")
+    public @ResponseBody UserEntity getUser(@PathVariable Long id) {
+        return userRepository.findById(id).get();
+    }
+
+    @PostMapping
+    public UserEntity createUser(@RequestBody UserEntity userEntity) {
+        return userRepository.save(userEntity);
+    }
+
+    @DeleteMapping(value = "/{id}")
+    public void removeUser(@PathVariable Long id) {
+        userRepository.deleteById(id);
+    }
+}

spring-boot-modules/spring-boot-data-3/src/main/java/com/baeldung/startdbwithawssecretsmanager/model/UserEntity.java

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+package com.baeldung.startdbwithawssecretsmanager.model;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class UserEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    private String name;
+
+    public UserEntity() {
+    }
+
+    public UserEntity(Long id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

spring-boot-modules/spring-boot-data-3/src/main/java/com/baeldung/startdbwithawssecretsmanager/repository/UserRepository.java

@@ -0,0 +1,10 @@
+package com.baeldung.startdbwithawssecretsmanager.repository;
+
+import com.baeldung.startdbwithawssecretsmanager.model.UserEntity;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface UserRepository
+        extends CrudRepository<UserEntity, Long> {
+}

spring-boot-modules/spring-boot-data-3/src/main/resources/application-aws.properties

@@ -0,0 +1,9 @@
+spring.datasource.driver-class-name=com.amazonaws.secretsmanager.sql.AWSSecretsManagerMySQLDriver
+spring.jpa.database-platform=org.hibernate.dialect.MySQL5Dialect
+spring.datasource.url=jdbc-secretsmanager:mysql://database-1.cwhqvgjbpgfw.eu-central-1.rds.amazonaws.com:3306/test
+spring.datasource.username=rds/credentials
+
+#Overwriting application.properties configuration back to default.
+spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults=true
+
+spring.config.import=aws-secretsmanager:test/secret/