
Testing
How to Test Idempotency of a Provisioning Script Safely
Test that a provisioning script is idempotent: run it twice in a clean container, compare state snapshots and test recovery after a failure.
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Test that a provisioning script is idempotent: run it twice in a clean container, compare state snapshots and test recovery after a failure.

Write an idempotent shell script safe to run twice: guard each step with a check, use mkdir -p and ln -sfn, append lines once, and report what changed.

Write an idempotent provisioning script that can run repeatedly: check state first, use repeatable commands, handle files, users, packages and services.