Files
hq/03-DESIGN/01-to-be
jschoubben 4d19e93900 Name the substrate's actual products
The design layer described every service by role and never once by name:
Postgres appeared in zero design documents. That was over-application of the
research rule "never identify the mesh it observed", which is about node names
and domains, not software.

Two things were actually broken by it. substrate.lock pins images by digest and
a digest belongs to a named image, so the bundle could not be written from the
design. And a reader could not tell a settled choice from an unexamined one --
"a relational store" reads identically either way.

ADR 0048 names them: PostgreSQL, LavinMQ, MinIO, an OCI registry, Docker. The
argument for each is continuity, which is a real argument -- replacing a
substrate service migrates the mesh's own state. Role and product are now both
written, because the design depends on the protocol while the installer needs
the product.

Also separates two questions the substrate doc had merged: being substrate and
being in the bundle. Only Postgres must precede the control plane; the rest are
substrate by role and ordinary by delivery. Whether the bus joins it is left
open, because it turns on the control plane's internal shape.

Names the forge as Gitea, and records ingress/Traefik as an unclosed gap rather
than a naming one -- nothing says what terminates TLS or which tier owns it.

Fixes a miscount: the host's bootstrap vocabulary is six shapes, not five.
2026-08-27 00:11:38 +02:00
..

03-DESIGN / 01-to-be

The mesh being built toward. Every statement here traces to a record in 02-DECISIONS/; nothing arrives by drafting.

A document here describes an intention. What currently runs is in 00-as-is/, and the two are never merged — when something ships, the as-is document is written and this one's status becomes implemented.

Document Covers Rests on
00-work-breakdown.md How the decomposition gets built, in what order, and where a human must look ADR 0015
01-end-to-end-testing.md The lab: a real mesh a change can be run against before it reaches nodes ADR 0016, 0029
02-scenario-declaration.md What a scenario declares — the underlay, and what to place on it ADR 0031
03-scenario-lifecycle.md What happens to a scenario — raise, snapshot, restore, move, destroy ADR 0032
04-lab-installation.md Getting the lab onto a clean machine, and why it verifies capability rather than installation ADR 0008
05-the-node-host.md Tier 0 — the one thing installed by hand, and the only thing that changes a machine ADR 0037
06-the-control-plane.md Tier 2 — what the term means, and the test for what belongs in it ADR 0037
07-the-substrate.md Tier 1 — what the control plane consumes and cannot grant itself ADR 0038

Not yet written

  • The eight bounded contexts. ADR 0015 decides the decomposition; the per-context specifications do not exist yet. The work breakdown says in what order they are needed.
  • Domain grouping outside the core. ADR 0017 settles the principle and explicitly does not settle the domain list. That is a research effort, not a design document, until it concludes.