AWS EKS Pod CrashLoopBackOff scenarios Due to Incorrect IAM Role Permissions
I'm a bit lost with I'm relatively new to this, so bear with me... I've looked through the documentation and I'm still confused about I'm running into a frustrating scenario while deploying my application on AWS EKS. I have a pod that keeps going into a `CrashLoopBackOff` state, and after digging through the logs, I see the following behavior message: `behavior: unable to retrieve secret: AccessDeniedException: User: arn:aws:sts::123456789012:assumed-role/my-eks-role/i-0abcdef1234567890 is not authorized to perform secretsmanager:GetSecretValue on resource: arn:aws:secretsmanager:us-west-2:123456789012:secret:my-secret`. I’m using the AWS SDK for Java (version 2.x) in my Spring Boot application to fetch secrets stored in AWS Secrets Manager. Here’s the relevant part of my Spring configuration where I set up the AWS SDK: ```java @Bean public SecretsManagerClient secretsManagerClient() { return SecretsManagerClient.builder() .region(Region.US_WEST_2) .build(); } ``` And here’s how I'm attempting to retrieve the secret: ```java String secretName = "my-secret"; GetSecretValueRequest getSecretValueRequest = GetSecretValueRequest.builder() .secretId(secretName) .build(); GetSecretValueResponse getSecretValueResponse = secretsManagerClient().getSecretValue(getSecretValueRequest); String secret = getSecretValueResponse.secretString(); ``` I’ve already verified that my IAM role attached to the EKS nodes has the appropriate permissions for accessing the Secrets Manager. Here’s the policy attached to the IAM role: ```json { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": [ "secretsmanager:GetSecretValue" ], "Resource": "arn:aws:secretsmanager:us-west-2:123456789012:secret:my-secret" } ] } ``` I’ve also checked the service account and associated IAM role using `eksctl`. The service account is linked correctly, but I suspect there might be an scenario with either the role or its permissions. Are there any best practices for configuring IAM roles for EKS pods that I may have overlooked? Also, how can I debug IAM-related issues more effectively in this setup? I'm working on a API that needs to handle this. What am I doing wrong? For context: I'm using Java on Linux.