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Validation
Validate Amazon Resource Names (ARNs) format for AWS cloud resources
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Tool usage guide
The AWS ARN Validator is a tool that checks the format of Amazon Resource Names (ARNs) to ensure they are correctly structured for AWS cloud resources, helping prevent configuration errors.
Background
You are configuring an S3 bucket policy and need to reference the bucket ARN accurately.
Problem
An incorrectly formatted ARN could cause the policy to fail, blocking access.
How to use
Paste the ARN (e.g., arn:aws:s3:::example-bucket) into the validator input field.
Outcome
The tool confirms the ARN is valid or highlights errors like missing account ID or invalid service name.
Background
You are setting up a Lambda trigger and need the function ARN for configuration.
Problem
A typo in the ARN might lead to the trigger not working as expected.
How to use
Enter the Lambda ARN (e.g., arn:aws:lambda:us-east-1:123456789012:function:my-function) into the tool.
Outcome
Validation ensures the ARN follows the correct format, reducing the risk of configuration issues.
An Amazon Resource Name (ARN) is a unique identifier for AWS resources, used in policies and API calls to specify resources like S3 buckets or Lambda functions.
Validating ARNs prevents misconfigurations, security risks, and deployment failures caused by incorrect resource references.
Yes, it validates ARNs for any AWS service using the standard ARN format, including EC2, S3, Lambda, and IAM.
The tool validates the region component if present, ensuring it matches AWS region formats, but it does not verify if the resource exists.
It returns a text message confirming if the ARN is valid or detailing any format violations, such as missing components or invalid syntax.