Qfyilyi

I'm trying to use AmazonSNS in my Spring Boot application and I'm able to use it locally, but as soon as I'm deploying it on my development server, I'm getting this error:

Caused by: com.amazonaws.SdkClientException: Unable to load AWS credentials from any provider in the chain: [com.amazonaws.auth.EC2ContainerCredentialsProviderWrapper@46a123e4: The requested metadata is not found at http://169.254.169.254/latest/meta-data/iam/security-credentials/ , com.amazonaws.auth.profile.ProfileCredentialsProvider@44bc2449: profile file cannot be null]

If I don't get it wrong, my server is not able to get any AWS credentials. I don't understand why, because AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY are set as environment variables. My code looks like that:

private AmazonSNS amazonSNS;



@Autowired

public AmazonSNSPublisherService() {

    this.amazonSNS = AmazonSNSClientBuilder.standard().withCredentials(DefaultAWSCredentialsProviderChain.getInstance()).withRegion("eu-west-1").build();

}

I tried this:

this.amazonSNS = AmazonSNSClientBuilder.standard().withRegion("eu-west-1").build();

And this:

this.amazonSNS = AmazonSNSClientBuilder.standard().withCredentials(new EnvironmentVariableCredentialsProvider()).withRegion("eu-west-1").build();

But I'm always getting the same error.

I cannot explain why, but my problem was this dependency in my pom file:

<dependency>

    <groupId>org.springframework.cloud</groupId>

    <artifactId>spring-cloud-starter-aws</artifactId>

</dependency>

As soon as I removed it, the DefaultAWSCredentialsProviderChain worked perfectly.

It's difficult to diagnose your specific problem, but I had the same issue, also in a Spring Boot application. The reason was because Spring Boot (potentially the spring-cloud-starter-aws package) creates its own Credentials Provider Chain and where I had placed

@Autowired

private AmazonS3 s3Client;

Was injected into the Spring bean container BEFORE my @Bean method was executed:

@Bean

@Primary

public AWSCredentialsProvider buildDefaultAWSCredentialsProvider() {

    return new DefaultAWSCredentialsProviderChain();

}

In fact, I put both snippets in the same @Configuration class and I didn't realize the @Autowired bean was injected from the Spring container (which starts out with AmazonS3 client and DefaultAWSCredentialsProviderChain credential created by Spring Boot) before my @Bean was instantiated and inserted into the Spring container.

Anyways, try looking to see if you're @Autowired injecting the credentials OR a client that uses it in a place that gets executed before YOUR credentials and YOUR SNS client.