A deployment plan is incomplete without the work after launch. Define useful signals, recovery assumptions, cost drivers and cleanup before resources exist. A backup schedule alone does not prove that a restore works.
RPO describes the tolerated data-loss window; RTO describes the tolerated restoration time. The fixture assumes daily backups, seven-day retention, a24-hour RPO and a four-hour restore budget/RTO. These are declared planning values. No real restore drill or cloud availability result is claimed.
Check backup interval against RPO, and retention against at least one scheduled interval. Compare the assumed restore duration with RTO. A real system must additionally exercise restores, account for transaction-log recovery where appropriate and measure the result. Replication is not a substitute for recovering deleted or corrupted data.
Useful signals include availability,5xx rate, tail latency, free storage and backup age. Cost drivers include compute/database hours, storage, egress, retained backups and ingested logs. This list is deliberately qualitative; provider prices, regions and usage must be checked when preparing an actual estimate.
backup_interval=24
rpo=24
restore_budget=4
rto=4
print("interval within RPO",backup_interval<=rpo)
print("restore budget within RTO",restore_budget<=rto)
print("planned values, not a measured restore")Teardown follows dependencies: stop application activity, handle/export database state deliberately, remove owned storage when its retention decision permits it, then remove dependent network resources. This ordering is a planning rubric, not permission to delete unrelated or retained user data.
The optional AWS lab gives its exact stack deletion command and verification step. Deleting a service does not necessarily delete retained snapshots, object versions, logs, addresses or other independently created resources. Review those ownership boundaries before a hands-on lab and confirm its actual inventory afterward.
costs=["compute_hours","database_hours","storage_gb_month","egress_gb","retained_backups","logs_ingested"]
print("cost drivers",len(costs))
print("teardown", " → ".join(("application","database","storage","network")))Implement the checklist review and challenge each recovery assumption. Do not label a declared restore budget as a measured drill. Next combine the complete plan and inspect failures across all boundaries.