Unable to use Spring cloud to connect with AWS SES

Question

I have made a very simple maven project using Spring Boot. I am trying to connect with AWS SES using Spring cloud. While running the project, I am getting following error:

No valid instance id defined

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.cloud.aws.core.env.ResourceIdResolver.BEAN_NAME': Invocation of init method failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'stackResourceRegistryFactoryBean' defined in class path resource [org/springframework/cloud/aws/autoconfigure/context/ContextStackAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.cloud.aws.core.env.stack.config.StackResourceRegistryFactoryBean]: Factory method 'stackResourceRegistryFactoryBean' threw exception; nested exception is java.lang.IllegalArgumentException: No valid instance id defined 

I am showing snippets of files in use:

pom.xml

<parent>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-starter-parent</artifactId>     <version>2.1.3.RELEASE</version> </parent>  <dependencies>     <dependency>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-starter-web</artifactId>         <exclusions>             <exclusion>                 <groupId>org.springframework.boot</groupId>                 <artifactId>spring-boot-starter-tomcat</artifactId>             </exclusion>         </exclusions>     </dependency>     <dependency>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-starter-mail</artifactId>     </dependency>     <dependency>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-starter-thymeleaf</artifactId>     </dependency>     <dependency>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-starter-actuator</artifactId>     </dependency>       <dependency>         <groupId>org.springframework.cloud</groupId>         <artifactId>spring-cloud-starter-aws</artifactId>         <version>2.1.0.RELEASE</version>     </dependency>     <dependency>         <groupId>com.amazonaws</groupId>         <artifactId>aws-java-sdk-ses</artifactId>         <version>1.11.505</version>     </dependency>      <dependency>         <groupId>javax</groupId>         <artifactId>javaee-web-api</artifactId>         <version>7.0</version>         <scope>provided</scope>     </dependency> </dependencies> 

SimpleMailAutoConfig.java

@Configuration public class SimpleMailAutoConfig {      @Bean     public AmazonSimpleEmailService amazonSimpleEmailService(AWSCredentialsProvider credentialsProvider) {          return AmazonSimpleEmailServiceClientBuilder.standard()             .withCredentials(credentialsProvider)             .withRegion(Regions.US_EAST_1).build();     }      @Bean     public MailSender mailSender(AmazonSimpleEmailService ses) {         return new SimpleEmailServiceMailSender(ses);     } } 

MailSendingService.java

@Service public class MailSendingService {      @Autowired     private MailSender mailSender;      public void sendMailMessage() {         SimpleMailMessage simpleMailMessage = new SimpleMailMessage();         simpleMailMessage.setFrom("[email protected]");         simpleMailMessage.setTo("[email protected]");         simpleMailMessage.setSubject("test subject");         simpleMailMessage.setText("test content");         this.mailSender.send(simpleMailMessage);     } } 

Application.java

@SpringBootApplication @ComponentScan("com.example") public class Application extends SpringBootServletInitializer {      @Override     protected SpringApplicationBuilder configure(SpringApplicationBuilder  application) {         return application.sources(Application.class);     }      public static void main(String[] args) throws Exception {         SpringApplication.run(Application.class, args);     } } 

application.properties

cloud.aws.credentials.accessKey=${MyAccessKey} cloud.aws.credentials.secretKey=${MySecretKey} cloud.aws.region.static=us-east-1 

I am not trying to connect to any EC2 instance. Not able to find any proper documentation for using spring cloud for SES

Answer 1

You've almost got it, you're just missing one more configuration flag to stop that exception creeping in.

Add cloud.aws.stack.auto = false to your application.properties file thus it will not enable the automatic stack name detection for the application.

You can read up more about it in the docs: http://cloud.spring.io/spring-cloud-aws/spring-cloud-aws.html#_cloudformation_configuration_in_spring_boot