railiance-platform/workplans/RPF-WP-0029-backup-credential-default-removal.md
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Verify Scaleway primary recovery and distinguish secondary backup coverage
Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a06ecb-456a-71c2-b41e-0755d336e883
2026-09-06 00:34:43 +02:00

130 lines
6.7 KiB
Markdown

---
id: RPF-WP-0029
type: workplan
title: "Remove backup credential default and verify governed replacement"
domain: financials
repo: railiance-platform
status: blocked
owner: codex
created: "2026-09-05"
updated: "2026-09-05"
state_hub_workstream_id: "bb326ebb-a313-549e-b35f-1bf17e1c58fd"
---
# Remove backup credential default and verify governed replacement
Source: State Hub message `ee702ac9-9118-4b9b-963a-01943052b65a`. Reviewed against current repository state
on 2026-09-05. Repository implementation is complete; live closure remains pending.
## Remove source fallback and verify fail-closed behavior
```task
id: RPF-WP-0029-T01
status: done
priority: high
state_hub_task_id: "4b5aefdb-a746-54f9-ba29-ebb840e7848d"
```
Removed the literal upload credential default from tools/cmd/forgejo-backup. Missing governed input now fails before cluster operations with a value-free diagnostic; encryption dry-runs skip upload authentication. Offline tests prove missing-input denial, explicit input, and mocked OpenBao resolution.
2026-09-05 continuation: removed credentials and credential-bearing URLs from
curl argv; curl config travels through stdin with curlrc disabled. Both upload
backends suppress credential-bearing diagnostics, require HTTPS and reject
redirects/non-success status. Added transport containment and failure tests.
## Invalidate predecessor and prove replacement recovery
```task
id: RPF-WP-0029-T02
status: wait
priority: high
state_hub_task_id: "b3f3402f-890b-5781-9b3e-1c9c0d28cea8"
```
Provider-side invalidation and replacement custody need the attended provider owner and CCR-2026-0004 lifecycle procedure. Record only non-secret invalidation, encrypted upload and restore receipts. No provider authority or replacement receipt was available; source removal alone does not close the reported exposure. Never record the predecessor value, fingerprint, length, or shape.
Prepared owner execution procedure: `docs/backup-credential-recovery.md`.
The dedicated Backup account cutover is complete under T03. Awaiting owner
authority for invalidating the old Bernd-owned share and a real offsite restore. Activity-core is
also a consumer of this upload lane. Preserve AGE_PRIVATE_KEY and historical
exposure evidence; upload-token rotation cannot clear recovery-key taint.
T03 proves encrypted fixture transport and decryption; full application restore
and historical predecessor invalidation remain open.
## Portfolio review — 2026-09-05
INTENT binding: dependable backup custody and recovery. Retain T02 until the
provider owner invalidates the predecessor and supplies replacement upload and
restore receipts through CCR-2026-0004. Source removal is already complete.
S1 backup scheduling belongs to RAIL-HO-WP-0012; forge backup orchestration and
artifact retention belong to railiance-forge. RPF-WP-0036-T06 will obtain an
accepted compatibility handoff, but this exposure obligation stays visible
here until its evidence is accepted. No rotation was executed in this review.
## Move future backups to the dedicated Backup account
```task
id: RPF-WP-0029-T03
status: done
priority: high
state_hub_task_id: "f85b1b4e-9a20-56e2-9e7d-d1d6f1c77bd9"
```
User explicitly selected Nextcloud user `Backup` with 10 GB quota and operator
credentials at UI `secrets/operators/nextcloud/backup`. Live resolution is KVv2
`operators/nextcloud/backup`, fields BACKUP_USERNAME/BACKUP_PASSWORD. Native
WebDAV login verified; actual quota is 10737418240 bytes (10 GiB). Keep the
account password in operator custody, create a Backup-owned create-only share
for workload delivery, and preserve the existing age escrow and retained data.
Prove encrypted upload/download/decryption and workload delivery. No automatic
pruning or personal-account revocation is inferred from this account change.
The historical predecessor invalidation obligation in T02 remains separate.
Completed 2026-09-05: Backup-owned share permissions 4; upload HTTP 201,
owner download/decryption passed, runtime GET/DELETE denied with HTTP 405.
Workload KV CAS 2→3 preserved age escrow. ExternalSecret delivery and all three
activity-core deployments verified ready with new credentials loaded. All test
fixtures removed. Account quota is enforced by Nextcloud; no automatic pruning.
Evidence: `docs/evidence/RPF-WP-0029-backup-account-2026-09-05.json`.
## Real recovery attempt — 2026-09-05
The September 4 encrypted backup passed new-account upload/download/decryption
but failed ZIP integrity, so no application restore was claimed. Fixed the
capture path to require exact producer success, transferred-byte identity and
ZIP CRC validation before encryption. A fresh 5,351,717,533-byte production
archive passed all three gates; it is encrypted in private local staging.
200 tests passed. The isolated restore implementation now requires a hash-bound
receipt for fetched bytes and uses disposable local credentials/network.
A later attended OpenBao login failed before command handoff, with revocation
not confirmed; the read-only predecessor probe did not execute. Do not reuse
that attempt or infer provider invalidation. T02 waits for a fresh attended
login to upload/fetch the validated archive and execute isolated recovery,
plus the old Bernd-owned share's invalidation receipt or protected owner path.
The failed candidate's newly created offsite copy also needs exact owner cleanup.
History: `history/2026-09-05-wp0029-real-offsite-recovery.md`.
Worker follow-through: its mounted source was still old. Deployed the immutable
`backup-verified-0220ca56520c` ConfigMap via the scoped platform helper, rolled
actcore-worker and verified all four source hashes. Future worker entry-point
invocations use the integrity checks without editing the host checkout.
Fresh encrypted archive: 5,353,024,293 bytes; 142 repository HEAD entries.
Local drill plaintext and producer temporary files were removed. Owner login
and the two remaining acceptance results above are still required.
## Primary/secondary boundary correction — 2026-09-06
User reaffirmed Scaleway as the primary backup provider. Nextcloud remains the
independent secondary lane. An actual isolated apps-pg recovery from Scaleway
passed in 42.64 seconds, including expected databases and consumer connection
limits; production stayed Ready and scratch resources were deleted. This is
primary database recovery evidence, not Forgejo or Nextcloud recovery proof.
The live primary covers apps-pg/platform-pg/platform-pg-2; forgejo-db has no
Barman destination and the Forgejo full-archive uploader still targets Nextcloud.
Do not conflate this coverage gap with the old-share incident or silently move
archives into a database-owned prefix. WP-0029's secondary acceptance gates
remain explicit. Source/platform assurance records now name the correct primary.