Write an artifact incident lookup guide
On-call staff need to identify source, checks, and prior release from one deployed digest.
- Focused work estimate
- 1h + prerequisites
- Priority in the scenario
- Low
- Engineering practice
- Runbooks
Estimated field mix
- Site reliability50%
- Developer tooling30%
- Cloud infrastructure20%
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
A fictional application team deploys mutable image tags and cannot reliably identify the artifact running during an incident.
Setup prerequisites
- Author synthetic artifact manifests and a local registry double; do not pull or execute untrusted images.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
- BARTIF-101 · Resolve deployment references to immutable artifact digests
- BARTIF-102 · Record build inputs without exposing build secrets
- BARTIF-104 · Keep environment-specific settings outside immutable application bytes
- BARTIF-103 · Reject promotion of artifacts with unresolved policy findings
- BARTIF-105 · Bind a promotion decision to current environment state
- BARTIF-107 · Withdraw a defective artifact without deleting incident history
- BARTIF-108 · Protect rollback artifacts from registry retention cleanup
- BARTIF-109 · Assess rollback compatibility beyond selecting an older digest
Acceptance criteria
- Show lookup from environment revision to artifact.
- Link provenance and policy results by identity.
- Document withdrawn and missing-artifact behavior.
Implementation constraints
- Do not include registry credentials in examples.
Verification to include
- Trace one synthetic deployment to source inputs.
- Handle a withdrawn artifact without losing history.
Deliverables
- Artifact investigation guide.
Rollout and recovery
Store with promotion tooling and update when manifest schema changes.
Value of the work
For the engineer: Practice artifact identity, promotion policies, and release provenance.
For the team: Provide reproducible deployments and a clear path to withdraw defective artifacts.
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.