AWS SAM - Failed to create the changeset: Waiter ChangeSetCreateComplete failed

Question

AWS SAM deploying codebase to AWS cloud using aws-sam-cli but it throw me below error.

Failed to create the changeset: Waiter ChangeSetCreateComplete failed: Waiter encountered a terminal failure state Status: FAILED. Reason: Requires capabilities : [CAPABILITY_IAM]

Answer 1

When you're creating or deploying a stack you need to explicitly allow creation of IAM resources. To do that, you need to add the parameter when calling sam deploy:

--capabilities CAPABILITY_IAM

If you want to create named IAM resources (e.g. roles or users where you explicitly specify the name), you'll want to use --capabilities CAPABILITY_NAMED_IAM instead.

You can read more about deploying IAM resources in CloudFormation here: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-iam-template.html#using-iam-capabilities

SAM deployment documentation: https://github.com/awslabs/aws-sam-cli/blob/develop/docs/deploying_serverless_applications.rst#deploying-your-application

Answer 2

Do check your YAML file indentation. review the YAML file once again, if it's a tad bit not up to the SAM standards it will throw this error. DO check once again.