Usecase Overview

• Business Goal: Provide standardized offline package generation, import and audit capabilities for isolated or low-bandwidth tenants, ensuring completion within 10 minutes with automatic rollback capability.
• Success Metrics: Import success rate ≥98%; full signature verification pass rate for generated packages & imports ≥99%; health check completion ≤3 minutes; automatic rollback rate 100% for failure scenarios.
• Scenario Association: Supports Main Scenario Stage 2, ensuring online release artifacts can be delivered through offline channels with audit capabilities.

Through trackable offline release processes, we ensure isolated tenants can deploy plugins according to standards even without external network access, meeting compliance requirements.

Context & Assumptions

• Prerequisites
  • Feature Flags plugin-offline-distribution, plugin-signature-guard, offline-import-healthcheck enabled.
  • CI/CD has generated usable build artifacts with version & dependency metadata recorded.
  • Intranet distribution library accessible, administrators have download permissions, tenants have import authorization.
  • Signature certificates valid and not expired, license service can verify internally.
• Input/Output
  • Input: Build artifact ID, target tenant, license information, verification strategy, health check scripts.
  • Output: Offline package (artifacts, dependencies, verification files), import status, health check reports, audit logs.
• Boundaries
  • Does not cover online push or Marketplace listing processes.
  • Does not handle tenant-custom additional deployment scripts or business data migration.

Solution Blueprint

Architecture Decomposition

Layer	Main Components/Modules	Responsibility	Code Entry
Artifact Packaging Layer	internal/publish/offline/package_builder.go	Aggregate artifacts, dependencies, version metadata and generate signatures	services/publish/offline
Import Orchestration Layer	internal/publish/offline/import_controller.go	Unzip deployment, version compatibility verification, rollback management	services/publish/offline
Security Verification Layer	internal/security/cert/signature_validator.go	Certificate fingerprint verification, license validation, revocation list query	services/security/cert
Audit Recording Layer	internal/audit/offline/import_audit.go	Record importer, time, fingerprint, results, link alerts	services/audit/offline
CLI/Console Layer	packages/cli/src/commands/plugin/import.ts	Trigger import, show progress, collect health check results	packages/cli

Process & Sequence

1. Step 1 – Offline Package Generation: CI/CD calls offline packaging module to generate artifacts, dependencies, verification files & signatures, uploading to intranet distribution library.
2. Step 2 – Administrator Import Preparation: Download offline package, verify signature fingerprint, confirm license status & target tenant resources.
3. Step 3 – Import & Health Check: Execute powerx plugin import --offline, system completes unzip deployment, runs health check scripts, generates results.
4. Step 4 – Enable & Audit: On successful import, enable new version and record audit logs; on failure, automatically rollback, send alerts and retain records.

Contracts & Interfaces

• Inbound APIs / Events
  • powerx publish package --offline — Generate offline package.
  • powerx plugin import --offline — Execute offline import.
• Outbound Calls
  • POST /internal/offline/signature/verify — Verify signatures & certificate fingerprints.
  • POST /internal/license/validate — Verify license status.
  • POST /internal/audit/offline — Write audits, trigger alerts.
  • EVENT plugin.offline.rollback — Rollback event notifications.
• Configs & Scripts
  • config/publish/offline_package.json — Packaging configuration, verification rules.
  • config/plugins/offline/dependencies.yaml — Dependency清单 & version mapping.
  • scripts/healthcheck/offline-import.mjs — Post-import health checks & reports.

Implementation Checklist

Item	Description	Status	Owner
Offline Package Generation	Support incremental packaging, dependency verification, signature file output	[ ]	Matrix Ops
Signature & License Verification	Verify fingerprints, revocation lists, license status	[ ]	Grace Lin
Import Orchestration	Unzip deployment, version compatibility verification, failure rollback	[ ]	Matrix Ops
Health Checks	Standardized script templates, structured report returns	[ ]	Erin Xu
Audit & Alerts	Import/rollback audit, alert configuration, report sync	[ ]	Grace Lin

Testing Strategy

• Unit: Packaging modules, signature verification, license checks, rollback processes.
• Integration: Execute scripts/healthcheck/offline-import.mjs, covering success, signature failure, dependency missing, health check timeout.
• End-to-End: Simulate isolated tenant offline import, verify rollback & audit links; reproduce meta document use cases B-1/B-2.
• Non-functional: Large package downloads, resumable downloads, low bandwidth imports, log retention & concurrent imports.

Observability & Ops

• Metrics: publish.offline.package_generated_total, publish.offline.import_success_rate, publish.offline.healthcheck_duration_ms, publish.offline.rollback_total.
• Logs: Record importer, tenant, version, signature fingerprints, dependency verification & health check results; sensitive fields masked storage.
• Alerts: Signature verification failure, license verification failure, health check timeout, rollback triggered consecutively >2 times.
• Dashboards: Offline Publish Dashboard, License Validation Monitor, workflow-metrics.mjs.

Rollback & Failure Handling

• Rollback Steps: Rollback to previous version, restore old configuration, release temporary resources; record rollback fingerprint & executor.
• Remediation Measures: Provide failure report downloads, notify release manager & tenant administrators, enable manual review channel.
• Data Repair: Run scripts/workflows/offline-import-reconcile.mjs to align import records, audits & license status.

Follow-ups & Risks

Risk/Issue	Impact	Mitigation	Owner	ETA
Large volume package downloads consume long time	Import efficiency	Introduce resumable downloads, provide incremental package solution	Matrix Ops	2025-12-18
Inconsistent health check scripts	Enable acceptance	Publish standard script library & verification tools	Erin Xu	2025-12-08
Certificate & license management lacks rotation reminders	Compliance risk	Establish certificate rotation alerts, automatic renewal process	Grace Lin	2025-12-20

References & Links

• Scenario Document: docs/scenarios/plugin-lifecycle/SCN-DEV-PLUGIN-OFFLINE-IMPORT-001.md
• Main Scenario: docs/scenarios/plugin-lifecycle/SCN-DEV-PLUGIN-PUBLISH-001.md
• Meta Design: docs/meta/scenarios/powerx/plugin-ecosystem/plugin-lifecycle/plugin-publish-and-release/primary.md
• Configuration: config/publish/offline_package.json, config/plugins/offline/dependencies.yaml