Understand the Problem:

A user attempts to deploy a CloudFormation template to create an S3 bucket but the stack creation fails.

The user authenticates using Active Directory credentials.

Analyze the Requirements:

Identify permissions required for successful CloudFormation stack creation.

Evaluate the Options:

Option A: The user's IAM policy does not allow the cloudformation:CreateStack action.

Without this permission, the user cannot create CloudFormation stacks.

Option B: The user's IAM policy does not allow the cloudformation:CreateStackSet action.

StackSet is used for managing stacks across multiple accounts and regions, not relevant for a single stack creation.

Option C: The user's IAM policy does not allow the s3:CreateBucket action.

This permission is required to create an S3 bucket as part of the stack.

Option D: The user's IAM policy explicitly denies the s3:ListBucket action.

This permission is not required for bucket creation but for listing existing buckets.

Option E: The user's IAM policy explicitly denies the s3:PutObject action.

This permission is required to put objects in a bucket, not to create the bucket.

Select the Best Solution:

Option A and C: The user must have permissions for cloudformation:CreateStack and s3:CreateBucket to successfully create the stack and the S3 bucket.

AWS CloudFormation Permissions

IAM Policies and Permissions

Ensuring the user has the required permissions for cloudformation:CreateStack and s3:CreateBucket is crucial for successful stack creation.