feat(B-0822): diamond-resolution namespace+cardinality+multi-tenant+multi-use 4-property substrate#5234
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AceHack merged 1 commit intoMay 26, 2026
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…ant+multi-use 4-property substrate (Aaron 2026-05-26) Composes with B-0821 (Maven-for-Helm parent row) by sharpening the diamond- resolution mechanism with the namespace+cardinality+multi-tenant+multi-use dimension that K8s-namespaces add beyond Java/jar-land. Two Aaron 2026-05-26 substrate landings: 1. Initial framing: "many charts declare their dependencies but then what do you do when two charts have the same dependency, do you deploy one or two versions of the dependency and it's project dependent on if the dependency uses namespaces for multi use or it's built in a single namespace (most of the time)" 2. Sharpening (multi-tenant ≠ multi-use): "it's worse than multi tenant you are right but even within tenant you might need two redises for different microservices so that's why i said multi use instead of multi tenant but maybe it's two dimensions and i'm conflating one." Yes — two dimensions, separately characterized: - Multi-TENANT (cross-tenant): does ONE instance serve N TENANTS via tenant-level isolation? (postgres-with-N-databases) - Multi-USE (intra-tenant): within ONE tenant, does ONE instance support N DIFFERENT USES across that tenant's microservices? Or do separate microservices need separate instances? (redis cache + pubsub + session with incompatible configs) 5-scenario table illustrates the cross-product. 7-chart characterization table (postgres / redis / kafka / cert-manager / elasticsearch / vault / ingress-nginx) shows real-world property assignments. 5 sub-targets (archetype detection from upstream charts; namespace-policy enforcement; secret+connection-string flow per tenant; diamond-conflict surfacing UX; multi-cluster cardinality scope). Implementation home = Ace package manager per B-0821 directive. Co-Authored-By: Claude <noreply@anthropic.com>
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Summary
Files B-0822 — composes with B-0821 (Maven-for-Helm parent) by sharpening the diamond-resolution mechanism with the four orthogonal properties that determine deploy-one-or-N-instances for shared charts:
Aaron 2026-05-26 sharpening caught the conflation (multi-tenant ≠ multi-use):
5-scenario table + 7-chart characterization table (postgres / redis / kafka / cert-manager / elasticsearch / vault / ingress-nginx).
Implementation home = Ace package manager per B-0821 directive.
Test plan
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