Pulumi, Terraform or CDK? Three Tools Compared Through the Same S3 Bucket

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A developer wrote the same S3 bucket with versioning in Terraform HCL, Pulumi, and AWS CDK to compare the infrastructure-as-code tools. The examples look alike for a single bucket, but differences emerge as infrastructure grows in complexity. HCL is intentionally limited to stay readable, while Pulumi and CDK use general-purpose languages that allow loops, functions, and testing at the cost of possible overly clever code. CDK's high-level constructs provide sensible defaults such as encryption and blocked public access, but it is AWS-only, and the three tools handle state differently. The article concludes that the right choice depends on whether a team spans multiple clouds, includes non-developers, or is developer-heavy.

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