Term Kind Topic What it is
Configuration Drift concept IaC Modules & Drift The gap that opens between the infrastructure your code describes and the infrastructure that actually exists.
Configuration Drift Detection practice IaC Modules & Drift Continuously comparing declared infrastructure against what actually exists, so out-of-band change is found on a Tuesday rather than during a rebuild.
Infrastructure State Partition State Splitting, Per-Domain State practice IaC Modules & Drift Splitting one infrastructure state file into several along ownership and lifecycle boundaries, so plans are fast and a mistaken apply cannot reach unrelated resources.