Expose edge-configuration rollback as a new desired revision
Operators lower the revision number to restore older values and gateways reject it as stale. Create a new revision carrying the prior values.
- Focused work estimate
- 2h + prerequisites
- Priority in the scenario
- Medium
- Engineering practice
- Versioning · Recovery
Estimated field mix
- Embedded and edge60%
- Distributed systems40%
Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.
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Project context
Fictional information-display gateways receive brightness schedules and cache limits. These settings affect only a software display emulator; no real devices, safety controls or customer data are used.
Setup prerequisites
- Define synthetic configuration schema and supported device capabilities.
- Implement local control-plane and gateway adapters with delayed messages.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
- CCONFIG-101 · Validate emulated display brightness and cache-limit settings
- CCONFIG-102 · Keep desired and reported edge configuration separate
- CCONFIG-103 · Scope emulated gateway configuration reads by organization
- CCONFIG-104 · Reject stale configuration revisions arriving at the edge gateway
- CCONFIG-105 · Stage edge settings before committing a complete configuration
- CCONFIG-106 · Reject edge settings unsupported by the declared gateway capability version
- CCONFIG-107 · Persist edge-configuration acknowledgement after active settings commit
- CCONFIG-108 · Coalesce offline edge configuration deliveries to the latest eligible revision
Acceptance criteria
- Rollback increments revision
- Prior values are copied explicitly
- Current capability validation still applies
Implementation constraints
- Preserve original revision history.
Verification to include
- Roll back supported values
- Attempt rollback containing now-unsupported field
Deliverables
- Rollback command and history cases
Rollout and recovery
Retain current settings if rollback validation fails.
Value of the work
For the engineer: Practice desired/reported state, compatibility and rollback.
For the team: Inspect whether remote configuration preserves working settings through offline and partial outcomes.
Evidence boundaries
Outcome Evidence: Tests, patches, and runbooks are requested deliverables. They become Outcome Evidence only through a qualified Mission and immutable Evidence IDs.
Ownership Evidence: Independent adaptation must be observed under a declared verification policy and cite immutable Evidence IDs. Completing a planning ticket establishes no Ownership Evidence.