15 — Deployment Architecture

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15 — Deployment Architecture
15.1 Cloudflare-native topology
CopyCloudflare
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Gateway (Worker) ── auth, routing, rate limit
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Workers (stateless compute) ── Twin, Memory, Signals, Workflows, Marketplace
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Queues ── retries, dead-letter
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D1 + DO ── Spine, RBAC, projections
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KV ── capability registry, persona greetings cache
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R2 ── snapshots, audit archive, listing bundles
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Durable Objects ── per-tenant SpineDO, TwinAgent DO, TenantBrainDO
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External Connectors ── via Nango + MCP
15.2 Environments
Env Purpose
dev personal compute
staging synthetic tenant population
prod multi-region (CF smart placement)
15.3 Release strategy
Dark-launch via feature flag (FeatureFlag per tenant).
Progressive rollout 1% → 10% → 50% → 100%.
Rollback via flag flip.
15.4 Migration strategy
Versioned migrations, reversible, dry-run in staging.
Schema migration bumps tenant_spine_config.schema_version (m054+).
15.5 Failure handling
Worker crash → DO alarm catches; CF retry + Queue.
15.6 Extension points
Region pinning per tenant.