jschoubben
3c6c16abdf
A session for the mesh itself, addressed as the mesh, differing from a node's in exactly three things: the context it starts in, its engram, and its licence binding. Not a new kind of agent — the same mechanism pointed at a different root. Two implementations of one mechanism drift, and the vocabulary collision 0001 exists to undo began exactly that way. It runs on the control-plane node, and the reasoning is easy to get backwards: not "the important agent on the important machine", but that this node is already the one place excepted from "compromise of a node is compromise of that node". Placed anywhere else it would create a second such place. It is an addition to per-node messaging and never a replacement. 0001 holds that losing the control plane costs change, not operation — and a mesh whose only conversational surface lived there would lose the ability to ask anything while every machine kept running perfectly. Writing it up exposed that the node session's setup was never designed at all. 0004 gives behaviour and stops: nothing said how a session starts, where its context lives, or how a broker message becomes a prompt. That gap was invisible until something had to be built *like* a node session. 15-the-agent-session.md covers both as one mechanism. It also makes "a consumer that is not a machine" undeferrable. The control-plane node now hosts two sessions that must hold different licences, and a per-machine binding cannot express that at all. Noted in 14-model-access.md against the gap it was already recorded as. Also completes the to-be index, which stopped at 10 and omitted four documents. Pre-existing broken ADR references in the older rows are left alone rather than guessed at.
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4.8 KiB
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 0001 |
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 0016 |
03-scenario-lifecycle.md |
What happens to a scenario — raise, snapshot, restore, move, destroy | ADR 0016 |
04-lab-installation.md |
Getting the lab onto a clean machine, and why it verifies capability rather than installation | ADR 0010 |
05-the-node-host.md |
Tier 0 — the one thing installed by hand, and the only thing that changes a machine | ADR 0005 |
06-the-control-plane.md |
Tier 2 — what the term means, and the test for what belongs in it | ADR 0005 |
07-the-substrate.md |
Tier 1 — what the control plane consumes and cannot grant itself | ADR 0004, 0048 |
08-connectivity.md |
One context in full — overlay, resolution, exposure, filtering, certificates | ADR 0007, 0050, 0051, 0055 |
09-the-node-lifecycle.md |
How a machine becomes a node, stays one, and stops being one | ADR 0004, 0051 |
10-delivery.md |
Modules, the three edges, and how a change becomes a running thing | ADR 0010, 0064, 0065 |
11-a-board.md |
What a person sees of the mesh, and why it is read from what runs | ADR 0008, ADR 0001 |
12-a-module-repository.md |
A module repository, and what builds it | ADR 0009, ADR 0010, ADR 0005 |
13-credentials-and-their-rotation.md |
Credentials, and moving them without a consumer holding one the provider does not know about | ADR 0001, ADR 0009 |
14-model-access.md |
Model access as a provision, and what a licence is bound to | ADR 0024, ADR 0009 |
15-the-agent-session.md |
One mechanism started twice — a node's session and the mesh's | ADR 0004, ADR 0026 |
Not yet written
- The remaining six contexts.
ADR 0006
settles the list at seven;
connectivityis the first written in full (08) and the other six do not exist yet. The work breakdown says in what order they are needed. Domain grouping outside the core.Not needed. ADR 0009 is superseded by ADR 0009: there is no domain module to group into, so there is no domain list to settle. Relationships are edges, and grouping is a tag and a query.