tegwick
b59b9a565c
Add RTO-RPO matrix, backup pickup queue tracker, and TestEvidence with Forgejo drill import. Mark T03, T04, T05 done.
4.8 KiB
RTO / RPO Matrix
Updated: 2026-07-07
Owner: Bernd
Scope: Backup lanes — initial seed (DISCTL-WP-0003-T03)
Related: AssetRegister.yaml · BackupPolicy.md · DataRegister.yaml
Recovery Time Objective (RTO): maximum acceptable downtime.
Recovery Point Objective (RPO): maximum acceptable data loss (time since last good backup).
Status legend:
| Status | Meaning |
|---|---|
adopted |
Operator-confirmed target; policy applies |
draft |
Proposed from assessment; pending operator confirmation |
degraded |
Target adopted but current posture cannot meet it |
Global baseline (from specs/ResilienceControlSetup.md §3): RPO ≤ 24h everywhere;
RTO ≤ 1 day for full recovery; RTO ≤ 4–8h for code/content/control plane.
Backup lane targets
| System | Register ID | RPO target | RTO target | Status | Evidence basis | Current posture |
|---|---|---|---|---|---|---|
| Forgejo git + packages | backup-forgejo-production |
24h | 4h | adopted | Decision #7 (2026-07-09); T09 drill | degraded — manual dump only; automation not wired |
forgejo-db CNPG |
backup-forgejo-production |
24h (Phase 1 logical dump) | 4h | adopted | Decision #7 (2026-07-09) | degraded — no scheduled pg_dump |
| Gitea (canonical until cutover) | backup-gitea-canonical |
24h | 4–8h | draft | Assessment §suggested targets | degraded — no automated backup |
| k3s cluster state (S2) | backup-s2-k8s-runtime |
24h | 4–8h | draft | railiance-backup-s2 local retention |
Manual backup; on-node only |
| S1 OS config | backup-s1-os-config |
24h | 4–8h | draft | Manual make backup; no schedule |
Manual backup; on-node only |
| Dev workstation custodian DB | backup-dev-workstation |
24h | 4h | draft | Daily cron 02:00; preflight gate | Operational — meets target if cron healthy |
| Dev workstation operator config | backup-dev-workstation |
24h | 4h | draft | Daily cron 02:00; preflight gate | Operational — meets target if cron healthy |
| S3 platform PostgreSQL | backup-s3-platform |
24h | 4h | adopted | Decision #7 (extends platform lane) | degraded — tool missing |
apps-pg CNPG |
backup-apps-pg |
24h | 4–8h | draft | railiance-platform/docs/apps-pg.md |
degraded — no ScheduledBackup CR |
| Adjacent SSO/MFA stack | backup-adjacent-sso |
24h | 4–8h | draft | Daily CronJobs on railiance01 | Operational — scheduled daily |
Measured results (restore drills)
| Date | System | RPO achieved | RTO achieved | Result | Evidence |
|---|---|---|---|---|---|
| 2026-07-04 | Forgejo (isolated restore) | Point-in-time of manual forgejo dump |
~3–5 min (isolated namespace) | success | TestEvidence/restore-drill-2026-07-04-forgejo.md |
No other systems have measured drill results yet. Next drills should produce
dated files under TestEvidence/ (DISCTL-WP-0003-T05).
Adopted vs operational gap
Systems marked adopted with degraded posture are policy violations until
the promotion gate in BackupPolicy.md §7 is met:
- Automated daily backups succeed for 7 consecutive days.
- One restore drill uses a Nextcloud artifact (not workstation
/tmp).
| System | Adopted RPO/RTO | Blocker to operational |
|---|---|---|
| Forgejo git + packages | 24h / 4h | No scheduled forgejo dump CronJob |
forgejo-db CNPG |
24h / 4h | No daily pg_dump automation |
| S3 platform PostgreSQL | 24h / 4h | railiance-backup tool absent from platform |
Draft targets pending operator confirmation
The following rows use assessment-suggested values. Confirm or adjust:
| System | Proposed RPO | Proposed RTO | Question for operator |
|---|---|---|---|
| Gitea canonical | 24h | 4–8h | Accept 24h RPO until cutover, or require mirror + hourly? |
| k3s cluster state (S2) | 24h | 4–8h | Accept manual-only S2 backup, or require daily cron + offsite? |
| S1 OS config | 24h | 4–8h | Accept manual-only, or require scheduled + offsite? |
| Dev workstation | 24h | 4h | Confirm daily cron meets RPO; any need for sub-daily? |
apps-pg |
24h | 4–8h | Confirm before app production-trust gates |
| Adjacent SSO | 24h | 4–8h | Confirm daily CronJob retention and restore path |
Cross-references
| Artifact | Link |
|---|---|
| Stream inventory | AssetRegister.yaml → backup_streams |
| Data classes | DataRegister.yaml → data_classes |
| Backup mechanisms | BackupPolicy.md §6–§7 |
| Forgejo adoption | the-custodian/docs/forgejo-production-decisions.md |
| Gap assessment | history/2026-07-04-forgejo-backup-strategy-assessment.md |
Follow-up: ResiliencePolicy.md (operating principle, drill cadence) remains
in DISCTL-WP-0002-T03. Broader non-backup systems (Bubble, Stripe, DNS) will
be added when DISCTL-WP-0002-T02 expands the registers.