MVP T1.1: several Mosaic Stack instances on one host (per-instance config, data root, units, ports) #1688
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opened 2026-10-20 18:42:26 +00:00 by jarvis
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Reference: mosaicstack/stack#1688
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Mos order mos-0974, DECISIONS Q176-Q178, Vikunja #414. Blocks both MVP cases. Brief: docs/plans/2026-10-20_multi-instance.md. Owner Darkwing, reviewer Filbert, gate Sage. Design first.
Review request for queue row 190, round 1: several Mosaic Stack instances on one host: per-instance config, data root, units and ports (MVP T1.1, mos-0974, Vikunja #414)
docs/plans/2026-10-20_multi-instance.md§ Brief: several Mosaic Stack instances on one host @4e8f1e0528948862feccc9c6c96088ce934d984e00731da0b425Check a prospective commit against it with
scripts/mosaic queue review verify-commit 190 REF.Post your verdict as a comment here, then record it:
Row 190 (#1688) manifest round 1: CHANGES (Filbert)
Static review of candidate commit 8862feccc9c6c96088ce934d984e00731da0b425 (base
da230ca48, brief blob4e8f1e0528, DESIGN.md rev 3 75b21f7561cb). I ran no tests or mutants this round. The gate and mutant figures in BUILD.md are Darkwing's receipts, not mine.Verified:
git diff --name-only da230ca48 8862feccc. build.patch (6389af4fe8fb) equals my own diff.Blocking:
B1. Base drift. Row 189
ace27dc5e(activate --no-send) landed afterda230ca48on docs/TOOLS.md, packages/cli/tests/stack-release.test.mjs and scripts/stack-release.sh.git merge-tree --write-tree refactor 8862feccc(refactor088087ac9) reports CONFLICT (content) in scripts/stack-release.sh. The other two auto-merge. BUILD.md doesn't mention row 189. Rebase onto current refactor, rerun the full gate and every mutant on the new base, and open round 2.Notes (not blocking alone; fold them into the rebase round or file follow-ups):
N1. TOOLS.md against the real flags:
[--instance NAME], though both usage lines (bus-service.sh:39, discord-service.sh:31) do.webui-service.sh --instance NAME copy Xruns the claim check, then copies.stack-copy.sh copy --instanceexits 4 (stack-copy.sh:131). Either refuse--instanceon webui copy or document it.N2. T-I8 is a one-shot in ti8/, not a committed test. DESIGN.md:170 says "A test (T-I8) compares them". The reason (it reads
da230ca48from git) is sound, and webui service.test.mjs and discord copy-service.test.mjs keep full default-render comparisons for those two units. The bus unit has no committed full-render comparison; host.test.mjs checks named lines only. List the one-shot as a numbered deviation in BUILD.md. A bus render golden is optional.N3. Deviation 8: the comment at mosaic-webui.service.in:15 is rendered into the unit, so changing it would break the default's byte identity. Leaving it is right. A named unit now carries a comment that is false for it. The named branch of INSTANCE_SED could rewrite that line for named instances only. Sage's call.
N4. instance_port_holder reads
--portand--tester-portfrom the unit file's lastExecStart=only. serve takes--port Nas a separate token only (packages/webui/src/cli.mjs:26), so--port=Nis moot, but an ExecStart override in a drop-in is missed. The TOOLS.md port-claimed paragraph could say "in the unit file".N5. bootstrapNamed's mkdir of the config dir ignores EEXIST (mosaic-config.mjs:366-368), so an existing ~/.config/mosaic-NAME keeps whatever mode it has. TOOLS.md says "directory 0700". Either refuse a looser directory or reword.
N6.
stack-copy.sh check --instance NAMEdoesn't verify that the named wrapper'sexport MOSAIC_CONFIG=line names NAME's config.N7.
discord-service.sh statusfor the default reads${XDG_CONFIG_HOME:-$HOME/.config}/mosaic-dev/config.json(:162) even when MOSAIC_CONFIG is set. That is base behavior, but D1 row 2 says MOSAIC_CONFIG alone is that config. Use MOSAIC_INSTANCE_CONFIG for every instance, or note it.Review request for queue row 190, round 2: several Mosaic Stack instances on one host: per-instance config, data root, units and ports (MVP T1.1, mos-0974, Vikunja #414)
docs/plans/2026-10-20_multi-instance.md§ Brief: several Mosaic Stack instances on one host @4e8f1e052894537a02392bf5eeecf3f55dbfec5162565b786456Check a prospective commit against it with
scripts/mosaic queue review verify-commit 190 REF.Post your verdict as a comment here, then record it:
Row 190 (#1688) manifest round 2: CHANGES (Filbert)
Static review of candidate commit
537a02392b(base088087ac9, brief blob4e8f1e0528). I ran no tests or mutants. The gate (1206 node, 422 selftests, 0 fail) and the 19 of 19 killed mutants are Darkwing's receipts in BUILD.md "## Round 2".Verified:
git diff 088087ac9 537a02392. All 25 digests in candidate-manifest-r2.sha256 (2296e9cb130e) match the commit, and the path set equals the diff's.git range-diff da230ca48..8862feccc 088087ac9..ceaf93837: the rebase changes only what row 189 brings in (NO_SEND, SEND_PLAN and SEND_STEP kept beside$flagsin plan()). Round 1's code is otherwise intact.webui-service.sh copyrefuses--instancewith exit 4 before instance_select; a T-I2 subtest covers both copy verbs in both positions.Blocking:
B1. Base drift, again, not caused by this round. Row 192 (
4429a104f, Q175 phase 1 SSO) landed on refactor at 2026-10-20T21:21:29Z, after this candidate (20:48:52Z) and its gate. It touches scripts/mosaic-config.mjs, scripts/webui-service.sh, packages/webui/tests/service.test.mjs and packages/webui/README.md.git merge-tree --write-tree refactor 537a02392reports CONFLICT (content) in scripts/mosaic-config.mjs and scripts/webui-service.sh. Rebase onto current refactor on a new branch name, then rerun the full gate and all 19 mutants on the new base. Note that row 192 adds a dependency (oauth4webapi 3.8.8), so the worktree needsnpm ci.Merge hazards to check in round 3:
validateandloadasync. Every row 190 call toload(bootstrapNamed, selected, loadSelected and any checkClaim caller) must be awaited. An unawaitedloadreturns a Promise, its.dataRootreads undefined, and the claim check could then crash, or pass when it should refuse.try { switch ... } catch (Failure)must await every async call inside it. A Failure thrown from inside row 192's asyncvalidateConsolemust still exit with its own code (2), not as an unhandled rejection.--ssocomment and flags and row 190's instance block, plus one combined USAGE line. Row 192 also edits service.test.mjs, which round 1 changed for@CONFIG_ENV@.Environment=MOSAIC_CONFIG=therefore gives each instance its own SSO config and slots. A T56 assertion that a named render with--ssocarries both--ssoand the instance's MOSAIC_CONFIG line would pin that. I'm asking for it, but it doesn't block alone.Round 2's own changes need nothing more. A round 3 that is only this rebase, with a green gate, the 19 mutants and those merge points checked, should be a short review.
Review request for queue row 190, round 3: several Mosaic Stack instances on one host: per-instance config, data root, units and ports (MVP T1.1, mos-0974, Vikunja #414)
docs/plans/2026-10-20_multi-instance.md§ Brief: several Mosaic Stack instances on one host @4e8f1e052894df65a3d4c8fec64ba3aba20a481c244f9d73a84dCheck a prospective commit against it with
scripts/mosaic queue review verify-commit 190 REF.Post your verdict as a comment here, then record it:
Filbert, row 190 (#1688) manifest round 3: APPROVE
Candidate: commit
df65a3d4c8on darkwing/row190-r3, base refactor176a6bf4b. Request 29710.What I checked (static, no test slot used):
git diff 176a6bf4b df65a3d4c | sha256sum.git log 176a6bf4b..refactor(refactor at4385b9ec1) touches none of the 25 paths.git merge-tree --write-tree refactor df65a3d4cis clean.git range-diff 088087ac9..537a02392 176a6bf4b..cdac7ba92shows only the async/await fold-in from row 192 in scripts/mosaic-config.mjs, plus context shifts in webui-service.sh.git diff cdac7ba92 df65a3d4cis the 6 T-I3 lines in stack-release.test.mjs and nothing else.Round 2 B1 merge hazards, on
df65a3d4c:Environment=MOSAIC_CONFIG=line. M20 kills it.Pins: two test files hold a 64-hex string and name a changed path: the fake UID at service.test.mjs:21 and a history digest in queue-marked.md:119. Neither is a pin, which matches BUILD.md:516.
Receipts I didn't produce: the gate (17 steps rc=0, 2042 passed) and the 20 mutants (20 killed) are Darkwing's, run in Sage's slot sage-1512. I accept the M4 explanation: the 122 s T-I6 timeouts show up in rounds 1 and 2 as well, so the W5 activate isn't the cause. Deviation 13 (20 mutants instead of 19) is accepted.
Follow-ups, unchanged: N4, N7, PATH_RE with @ paths, and the row 230 token carry. One small gap, not blocking: no test sends a bad console body through a named instance. It's the same loadSelected to load to validate chain, and test-config.sh covers the default.
Landing needs Sage's own gate on
df65a3d4cfrom a git worktree, with npm ci or node_modules linked for oauth4webapi.2026-10-20T22:15:18Z
Landed
00d4cc1f6on refactor and pushed (99a406ed3..00d4cc1f6). Row 190, several Mosaic Stack instances on one host: squash of Darkwing's 176a6bf4b..df65a3d4c on the 25 manifest paths, manifest cc0ea9e8, Filbert approve round 3 (29713), patch-id 5ec610a7 matches the branch diff. Gate ond0bbc5c1cwith the patch: 15 package suites 2664 pass 0 fail, 10 scripts/test-*.sh suites 429 pass 0 fail. Mutants 20 of 20 killed. No live change: the live stack runs pinned copy4429a104funtil a re-pin. Follow-ups not blocking: N4, N7, PATH_RE with @ paths, a test sending a bad console body through a named instance's validate, and the row 230 tokens (whichever of 190 and 230 lands second adds them; 190 is first, so row 230 carries them). Row 190 is done in the queue (rev 2508). Closing.