Terraform

Terraform

Plan and import

• Don't run terraform plan directly; instead give the command and ask the user to execute it.
• NEVER run terraform import manually; use import statements instead.

Variables

• Do not set nullable = true on variables; that is the default and is redundant.
• Only set nullable = false when the variable must not be null.
• Pass every value explicitly at the call site. Defaults and fallbacks—variable defaults, provider defaults, resource defaults, coalesce/fallback patterns—hide decisions and make behavior opaque. We hate them; use only as a last resort.

Module structure

• Single call per concern: one module call per cohesive concern; merge related pieces into one module.

Variables and outputs

• Remove unused outputs; keep only outputs that are referenced.
• Minimize environment config; don't parametrize values that never vary across environments.

Descriptions

• Omit description unless it adds information not visible from the code; remove if unused.

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