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Setup Guide

This guide walks you through setting up AWS IAM credentials with the necessary permissions to access AWS Secrets Manager.

Prerequisites​

  • An active AWS account. If you do not have one, sign up for an AWS account.
  • At least one secret stored in AWS Secrets Manager in your target region.

Step 1: Create an IAM user for programmatic access​

  1. Sign in to the AWS Management Console.
  2. Navigate to IAM (Identity and Access Management).
  3. In the left sidebar, select Users, then select Create user.
  4. Enter a User name (e.g., ballerina-secrets-connector).
  5. Select Next.

Step 2: Attach permissions for secrets manager​

  1. On the Set permissions page, select Attach policies directly.
  2. Search for and select the SecretsManagerReadWrite managed policy, or create a custom policy with the minimum required permissions:
    • secretsmanager:DescribeSecret
    • secretsmanager:GetSecretValue
    • secretsmanager:BatchGetSecretValue
  3. Select Next, review the configuration, and select Create user.
tip

For production use, follow the principle of least privilege and grant only the specific permissions your integration requires.

Step 3: Generate access keys​

  1. From the Users list, select on the user you just created.
  2. Go to the Security credentials tab.
  3. Under Access keys, select Create access key.
  4. Select Application running outside AWS as the use case.
  5. Select Next, then Create access key.
  6. Copy the Access key ID and Secret access key.
warning

The secret access key is shown only once. Store it securely immediately. If lost, you must create a new access key pair.

tip

Use Ballerina's configurable feature and a Config.toml file to supply credentials at runtime. Never commit credentials to source control.

Step 4: Identify your AWS region​

Determine the AWS region where your secrets are stored. You can find this in the AWS Console by checking the region selector in the top-right corner, or by looking at your secret's ARN (e.g., arn:aws:secretsmanager:us-east-1:123456789012:secret:MySecret-AbCdEf).

Common regions include:

  • US_EAST_1 (N. Virginia)
  • US_WEST_2 (Oregon)
  • EU_WEST_1 (Ireland)
  • AP_SOUTHEAST_1 (Singapore)

Step 5: Alternative: use EC2 IAM role or default credentials​

If your Ballerina application runs on an EC2 instance or another AWS compute service, you can use IAM role-based authentication instead of static access keys:

  1. Create an IAM role with the required Secrets Manager permissions.
  2. Attach the role to your EC2 instance (or ECS task, Lambda function, etc.).
  3. Use EC2_IAM_ROLE or DEFAULT_CREDENTIALS as the auth value when initializing the connector, with no access keys needed.
note

IAM role-based auth and default credentials are recommended for production workloads running on AWS, as they eliminate the need to manage static credentials.

What's next​