Package the deployable, and refuse to build one that carries no schema - #26
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There was no way to run this. One image, one compose file, one workflow that publishes to GHCR, and docs/deploy.md — and no host and no domain, because §15.1 and §15.3 are open and packaging is not the place to close them. The Dockerfile is multi-stage: the .NET 10 SDK publishes, the runtime layer is aspnet:10.0 with nothing that can compile, and the process runs as the base image's app user against a read-only root filesystem, which it can because every write it makes goes to Postgres. The first image built here started, applied no migrations and reported nothing wrong: migrations/ sits outside the project directory and a glob that matches nothing is not an error to MSBuild, so MUI.Catalog compiled with an empty migration set. MUI.Catalog.csproj now fails the build when the glob is empty and MigrationRunner refuses to run when the assembly carries no scripts. A site whose schema silently trails its code is the worse failure of the two. The web deployable had no way to be given a seed list, so a deployed crawler held the lease and had nothing to dial. MUI_CRAWL_SEEDS and MUI_CRAWL_ENABLED read the same way MUI_POSTGRES does. Neither can exempt an address from §7.2's resolved-address gate: that exemption is a claim a person makes about one address they chose, and an environment variable copied between deployments is not that person, so it stays mui-crawl --seed-exempt. The seed parser moves to CrawlSeed.Parse so the CLI and the deployment agree about what an address is. The crawl loop's hosted service is now registered even when it is off, so the replica that was told not to crawl says so instead of being silently quiet — which is how it looks when it was meant to crawl and is not. Testcontainers 4.13.0 pulls SSH.NET 2025.1.0, which now carries a high-severity advisory; with warnings as errors that is a red build on main. 4.14.0 takes 2026.0.0. Verified against Podman: with no MUI_POSTGRES the image serves every page with the demo banner, and against a Postgres it applies the eight migrations, plants a seed, probes it and serves the measurement. Three replicas, one advisory lock, one crawler.
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WalkthroughThe PR adds Docker and Docker Compose deployment, migration embedding checks, configurable crawler settings and seed parsing, deployment documentation, and a GitHub Actions workflow that publishes and smoke-tests the container image. ChangesDeployment and runtime support
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🟡 Moderate · up to The new publishing workflow can execute changed action code with package-publishing permissions, and a manual run from a non-main ref can move the shared latest image tag, potentially causing unauthorized publication or unexpected deployments. The crawler seed parser and settings tests also need small correctness and reliability fixes, so the PR is not merge-ready until these risks are addressed or explicitly accepted. Sequence Diagram(s)sequenceDiagram
participant GitHub Actions
participant GHCR
participant Docker container
participant Smoke test
GitHub Actions->>Docker container: Build and tag image
GitHub Actions->>GHCR: Push image and provenance attestation
GHCR->>Docker container: Provide pushed image
Smoke test->>Docker container: Run image and request HTTP endpoint
Docker container-->>Smoke test: Demo page with "Demo data."
``
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| Title check | ✅ Passed | The title clearly summarizes the two main changes: deployable packaging and build failure when schema migrations are absent. |
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In @.github/workflows/publish.yml:
- Line 41: Update the action references in the publish workflow, including
actions/checkout, to use verified full commit SHAs instead of version tags.
Replace all six action references while preserving their current behavior and
keep automated dependency updates enabled.
- Around line 9-12: Update the publish workflow’s tag-selection logic so the
latest tag is published only when github.ref equals refs/heads/main; for manual
runs targeting any other branch or tag, publish only the SHA tag. Keep the
existing main-branch publishing behavior unchanged.
In `@docs/deploy.md`:
- Line 86: Add the text language identifier to each log code fence in the
deployment documentation, including the examples near the referenced locations,
so every fence uses the text-tagged form required by MD040.
In `@src/MUI.Crawler/CrawlerOptions.cs`:
- Around line 93-104: Update the host/port parsing logic around the colon
calculation to reject any value beginning with “\[” unless it contains a closing
“]:” delimiter; do not fall back to LastIndexOf(':') for bracketed input.
Preserve the existing unbracketed parsing and CrawlSeed validation behavior.
In `@tests/MUI.Web.Tests/CrawlerSettingsTests.cs`:
- Around line 19-22: Update the CrawlerSettings tests and Config helper to
isolate MUI_CRAWL_SEEDS and MUI_CRAWL_ENABLED environment state: mark
environment-mutating tests with TUnit [NotInParallel], save and restore both
variables in finally blocks, and add explicit cases verifying
environment-variable precedence over IConfiguration. In
ASeedListIsReadInTheOrderItWasWritten, replace IsEquivalentTo with an
order-sensitive assertion.
Apply the same fix in `@tests/MUI.Web.Tests/CrawlerSettingsTests.cs` around lines
36 - 37: Covered by the same environment isolation and order-sensitive assertion
remediation.
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📒 Files selected for processing (15)
.dockerignore.github/workflows/publish.ymlDirectory.Packages.propsDockerfileREADME.mdcompose.yamldocs/deploy.mdsrc/MUI.Catalog/MUI.Catalog.csprojsrc/MUI.Catalog/Persistence/MigrationRunner.cssrc/MUI.Crawler.Cli/Arguments.cssrc/MUI.Crawler/CrawlerOptions.cssrc/MUI.Crawler/CrawlerServiceCollectionExtensions.cssrc/MUI.Web/Data/CrawlerSettings.cssrc/MUI.Web/Program.cstests/MUI.Web.Tests/CrawlerSettingsTests.cs
This was referenced Aug 15, 2026
…image From review of #26. The seed parser fell back to the last colon whenever the brackets did not match, so `[2001:db8::1:4201` was read as host `2001:db8::1` port 4201 and a bare `2001:db8::1:4201` was split the same way — the parser deciding what a typo meant. Measured, before and after, on five inputs. It was never a way past §7.2: CrawlCycle resolves and rules on every target before it dials, the string the parser returns is the string that gets ruled on, and IsOperatorSeed comes from the caller rather than from the text. What it could do is dial a host nobody wrote down, which rule 4 says a parser does not get to do. A bracketed address must now close its bracket immediately before the port, and an unbracketed one may not carry a second colon. The publish workflow could be dispatched at any branch or tag, and `latest` was unconditional — a manual run from a feature branch would have become what everybody pulls. It is now enabled only on refs/heads/main; the SHA tag still publishes from anywhere. The job can write packages and sign attestations, so the six actions are pinned to full commit SHAs, and dependabot.yml is what keeps the pins from rotting into the security fix nobody takes. The settings tests read the process environment through the code under test, which reads it before configuration — so a developer with MUI_CRAWL_SEEDS still exported from a compose session was running a different suite from CI. Proved: the committed tests fail seven ways under an ambient MUI_CRAWL_SEEDS, and the new ones pass. Both variables are now cleared and restored per test, the class is NotInParallel, and the precedence itself is asserted rather than only documented. The order test used IsEquivalentTo, which TUnit evaluates without regard to order — measured with a deliberately reversed expectation, which passed — so it asserted nothing about the order it is named for.
Seventh link: main → #27 → #32 → #31 → #21 → #28 → #30 → #26. Two conflicts. Arguments.cs — this branch moved seed parsing out to CrawlSeed.Parse so the CLI, the environment variable and compose.yaml all read an address the same way; #31 added ParseAddress beside the ParseSeed that moved. Kept ParseAddress where it is and let ParseSeed stay gone: an opt-out address comes only from the CLI, and it takes an optional port, so it is not the same parse. Program.cs — the same shape as the two merges before it. This branch added configure.Apply(builder.Configuration) to the AddMuiCrawler call, which #32 had moved into SiteComposition.AddMuiSite; the line moved with it. That move earned a test. CrawlerSettings.Apply has thorough tests and every one of them calls it on a builder it constructed itself, so all of them pass on a site that never calls it — and the call has now moved between files during a restack, which is exactly how it would be lost. The new CompositionTests case resolves CrawlerOptions out of the site's own graph with Crawler:Enabled=false and a configured seed, and fails when the line is commented out. It also pins the half configuration may not do: a seed that arrives this way is never an operator seed, because §7.2's exemption is a claim a human makes about one address and an environment variable copied between deployments is not that human. Verified after the migration rename in the link below this one: all twelve migrations are still embedded in MUI.Catalog.dll and 0012_slug_history sorts last. This branch's new EnsureTheMigrationsWereFound target and the runner's empty-set refusal both still hold.
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Eighth link: main → #27 → #32 → #31 → #21 → #28 → #30 → #26 → #29. THE ANTI-FORGERY REORDER, WHICH WOULD HAVE VANISHED. This branch moves UseAntiforgery after UseAuthentication, and it was written against the Program.cs #32 deleted — so it merged clean and applied to nothing. The rule is reapplied inside the composition, and it is now a named method rather than three lines: UseMuiAntiforgeryAfterAuthentication. A method because the test that proves the rule matters built its own copy of the three lines. OwnerEndpointTests' harness said "Program's order" in a comment and restated it in code, so it asserted its own ordering and would have gone on passing with the site's reversed — which is the failure it exists to catch, one level up. The harness now calls the site's own method for the correct order and hand-builds only the wrong one, because there is no other way to build a thing that is not supposed to exist. Verified: swapping the two lines inside the method fails five of this branch's tests by name, and it failed none of them before. The ordering is worth that trouble. An anti-forgery token issued to a signed-in operator carries their identity; validating before authentication compares it against nobody and every owner's form post is refused as forged, while every public page — all GET — goes on working perfectly. PlainText — #27 factored the plain label into PlainText.Label, this branch added a third word to it at one of the four call sites. The three-way choice moved into Label: an owner's answer is owner-declared on the listing, on the game page and in the archive alike, and "declared" alone would put what an operator typed into our form and what their config file emits under one word. That was this branch's own argument for making the distinction at all; it just has one place to live now. app.css is two separate blocks, both kept. InMemoryFieldStore grew #30's LastChangedAtAsync, answering null — which is true of a store whose RecordChangeAsync already discards what it is handed. DeclaredOf's empty-value filter survived intact, and the ladder conflict its author expected with #28 did not happen: #28 never touched NpgsqlGameQueries. A cleared owner row is still filtered before the ladder rather than after it, so it cannot win its group and silence the MSSP value underneath.
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Ninth link, and the first of the three that were based on feat/claim-wiring rather than on main: main → #27 → #32 → #31 → #21 → #28 → #30 → #26 → #29 → #33. Two conflicts, and one of them is the reason these three were flagged. Account.razor — this branch put the scorecard link in the <li> a claimed game used to be, and #29 has since turned each claimed game into a <details> with an owner panel inside it. Textually the two edits are the same lines; what the branch meant was "one link per verified claim, on the dashboard and nowhere else", so the link moved into the <summary> beside the game's name and the verified date. Taking either side wholesale would have lost the owner panel or lost the only route to the scorecard. app.css is two independent blocks, both kept. Read the branch's tests rather than trusting them: MsspLintTests and MsspScorecardSurfaceTests assert MsspLint's judgements and that the page is CLOSED to a stranger, neither of which touches the dashboard's markup, so nothing here went stale. They also do not cover the dashboard link itself — noted rather than fixed, because Account.razor has no render harness and building one for one anchor is a bigger change than this merge.
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Tenth link: main → #27 → #32 → #31 → #21 → #28 → #30 → #26 → #29 → #33 → #34. THE BADGE WAS PUBLISHING A GAME'S OWN ASSERTION AS OUR MEASUREMENT, and this merge is where that became visible. This branch added GameSummary.PlayersNowAt — "when the count was measured" — and said so in its own doc comment: "not the whole of §10.1's fix, the codebase still has no chip". #27 landed the whole fix while this branch sat on feat/claim-wiring, so the summary now carries PlayersNowProvenance, a chip with the count's source on it. PlayersNowAt is dropped and the badge reads the instant off the chip; keeping both would have been two answers to one question, which is the thing #27 exists to stop. But an instant is not the interesting half. PlayersNow can come from MSSP PLAYERS — PresenceChoice ranks WHO, then MSSP, then the connect screen — and this badge writes "N players measured 4m ago", returns state "measured" in its JSON, and paints the accent that means measured on every other surface here. On somebody else's front page, where we cannot correct it. That is rule 5 broken by a format string, which is very nearly the sentence §10.1 uses about the unlabelled listing. So Counted now requires ProvenanceChip.IsMeasured — the same predicate ApiMapper.Counted already uses to decide playersNowState, so the badge and /api/games/{slug} cannot disagree about one game. A declared count reads as unknown: three states, no new vocabulary, and the badge says only what we measured. What the game says about itself is on its page, attributed. Nothing covered this: BadgeApiTests used ashen-court only to assert two URLs, and ashen-court is the fixture's MSSP-declared row — put there by #27 precisely as the argument for labelling. ADeclaredCountIsNotPublishedAsA- MeasuredOne now pins it, with m-u-s-h as the measured control, and it fails if the IsMeasured guard is relaxed. Account.razor for the third time: the badge snippet was written against the <li> a claimed game used to be. It is now in the <details> body beside the owner panel rather than in the <summary>, because a <details> nested inside a <summary> is interactive content inside a control. NEEDS A HUMAN: ProvenanceChip.IsMeasured is Handshake-or-Who, so a count read off a connect screen is "declared" — while migration 0003 says in terms that a banner count "is still a measurement of ours". The two disagree, the disagreement predates this chain, and it now decides whether Aardwolf's badge shows a number. I have kept the badge consistent with the API rather than picking a side.
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Eleventh and last link of the restack: main → #27 → #32 → #31 → #21 → #28 → #30 → #26 → #29 → #33 → #34 → #35. MIGRATION RENUMBERED. 0012_claim_intent.sql → 0013_claim_intent.sql, since #30's slug history now holds 0012. Thirteen migrations are embedded in MUI.Catalog.dll, 0013 sorts last, and nothing referred to it by number. Three conflicts and one clean merge that did not compile. Account.razor, for the third merge running, and this one had the most in it. The dashboard's status banner is now one else-if chain — resigned, then saved, then refused — because a redirect carries exactly one outcome and two banners at once would be two answers to one action. A claimed game's block holds, in the order an owner would want them: who else owns it, the enrichment panel, the badge snippet, the history, and giving up the claim last. #35 was written when a claimed game was an <li>, so all of it had to move inside the <details> #29 introduced; the co-owner line in particular was inside the <summary>, which is not somewhere a <p> may live. Passkeys.cs maps both write surfaces rather than choosing: MapMuiOwnerWrites is §8.5's enrichment and §11's suppression, MapMuiOwnership is §8.4's counter-claim and resignation. They are different routes. Claim.razor merged clean and broke the build, which is the useful kind of failure. #21 changed this page from IGameQueries to IGameStore on purpose — a submitted game is hidden from the public read until somebody claims it, so looking it up through the listing's own query made claiming the one thing a hidden game could never do — and #35 added three uses of the old Page.Summary against the view model that is no longer loaded. They now read the row, which is what the rest of the page already did. Read #35's tests rather than trusting them, as asked: OwnershipPostgresTests and OwnershipSchemaTests assert ClaimService and the claim_intent schema against a real database, neither of which touches the dashboard markup or the page's lookup, so nothing in them went stale. The dashboard markup itself has no render harness on any of these three branches.
Carries the shared measured/declared predicate and /submit's opt-out refusal down the chain.
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* Claiming was complete, tested, and wired to nothing §8.5 says nothing sets game.is_claimed, so the listing badge and §7.5's ceiling grace have never been exercised. Claiming shipped in #16 and the note still read true, so I went looking for why. The claim logic was not the problem — it is complete and it has tests. The composition was. The site has two compositions of the same objects. mui-crawl builds the crawl loop by hand and passes every collaborator; the deployed site assembles it through DI. Three things were wrong with the second, and none of them could fail loudly: CrawlCycle takes its ClaimService as an OPTIONAL parameter, deliberately — a crawl with no database should do slightly less rather than refuse to run. The crawler graph registered no ClaimService, so a crawler-only deployment settled no beacons and said nothing about it. ClaimService was registered scoped, and the crawl loop that needs it is a singleton BackgroundService. A scoped dependency is one CrawlCycle can never legally be given: with scope validation on, which is what `dotnet run` does, the container refuses to build and THE SITE DOES NOT START with a connection string set. Production leaves validation off, so there it worked — by accident, and only there. That is also the answer to §8.5's note: is_claimed was being set in production and nowhere else. IClaimStore was registered nowhere at all. Account.razor service-locates it and reads a null as "this site has no database", so every operator's dashboard was empty on a site that had their claims, and /g/{slug}/claim/check threw on request. A service-located dependency fails silently by construction. Both services are stateless over a pooled NpgsqlDataSource, so both are now TryAddSingleton, registered by the crawler graph and the accounts graph alike — the one deployment that runs both gets one of each. CompositionTests resolves the graph Program builds, under scope validation, in both environments, and asserts the claim path is really joined. It fails on the parent commit in seven ways and is the only kind of test that could have caught any of this: every part was correct and the wiring between them was not. §8.5's closing note is rewritten to say what is actually true, and to name the general hazard — an optional dependency and a service-located one both fail silently when the composition is wrong, and the claim path has one of each. 830 tests over five suites, Postgres exercised. Testcontainers 4.13.0 -> 4.14.0 is the same one-line pickup as #26: SSH.NET 2025.1.0 is now advised against and NU1903 fails restore on main without it. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * Compose the test from Program's own graph, and make "look sooner" look Review findings on the composition fix. All four held; each is verified rather than taken. CompositionTests restated Program's registrations instead of running them, so a future divergence — a scoped service consumed by a singleton, AddMuiAccounts moving — would break the site while all the tests passed. That is exactly the failure this file exists to catch. The graph moves out of Program's top-level statements into SiteComposition.AddMuiSite/UseMuiSite, which the deployable and the test now both call, so there is one copy and nothing to diverge from. The on-demand check moved nothing. RequestCheckAsync wrote last_checked_at and a check_requested event; due-ness comes only from crawl_target.next_probe_at, so no probe ever came of it while the page said the button dialled a real server. A rate limiter on an action that does not happen is the most convincing possible no-op. IOnDemandProbes brings the game's targets forward with LEAST — an ask can only make a probe sooner — and the crawl loop still does the dialling under CRAWL DELAY and §7.2's address gate. Five Postgres tests assert on the schedule rather than on the audit log. The button now says what it does: "Look sooner", brings your game to the front of the queue, we dial on our own schedule. The remark on TheHostedCrawlerCanBeResolvedInProductionToo described a failure that never happened — it passes on the parent commit, because Production leaves scope validation off and resolved the scoped ClaimService from the root. It is a control, not a finding, and now says so. Measured: the original seven tests fail five ways on the parent, not seven. With the four added here, ten fail seven. "A crawler-only deployment" justified the new registrations in three places and describes nothing: AddMuiCrawler has exactly one caller, MUI.Web's Program, and mui-crawl builds its graph by hand. §4.11 has one deployable. The real consumer is the web tier's in-process CrawlCycle, and all three now say so. Two more while here. The demo composition had no test at all; it has one, and it asserts the claim surfaces are absent rather than broken and that the page still admits nothing on it was measured. And the web tier registered its own NpgsqlAvailabilityStore with AddSingleton, so the crawler's TryAdd was skipped and the concrete type and IReachableHistory pointed at a second instance — harmless on one pool and a direct contradiction of the crawler's own comment that two would be two connection paths answering one question. AddPostgresCatalogue is TryAdd throughout now, and one object answers to all three names. 838 tests over five suites, Postgres exercised. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * Drive the passkey ceremony for real, because nothing ever had #30 reported that a JSON POST to a minimal API mapped after UseAntiforgery() is refused with 400 in a slim host, even with .DisableAntiforgery(), which would mean passkey sign-in is broken and §8.2 leaves no other way in. IT DOES NOT REPRODUCE. Measured against the real host — accounts registered, Postgres behind them, migrations applied, ASPNETCORE_ENVIRONMENT=Production: POST /account/passkey/assertion-options -> 200 POST /account/passkey/sign-in (as sent) -> 401 POST /account/passkey/registration-options -> 200 POST /account (Razor route, no token) -> 400 <- control The control is the part that makes the rest mean anything: anti-forgery IS live in that pipeline and refuses an untokened POST one route over. The 401 is the handler answering, not the middleware — the first attempt without the ceremony's cookie got a 500 from SignInManager saying no assertion was underway, which is the handler too. The mechanism: a minimal API is given anti-forgery metadata only when it binds FORM data. These bind JSON or a query string, so they carry none and the middleware passes them through; MapRazorComponents puts metadata on component routes, which is why the control is refused. And .DisableAntiforgery() sets RequiresValidation false — a 400 surviving it was never anti-forgery's. Adding the test anyway. Sign-in is the only door in the building and no suite opened it: the ones that exercise sign-in are the ones that stub it, and the composition tests stop at the graph. These drive the real routes through AddMuiSite/UseMuiSite, with a control that fails if anti-forgery ever stops being live and would catch the reported failure if it ever became real. 841 tests over five suites, Postgres exercised. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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The image has been published on every push to main since #26 and nothing pulled it. This is the other half: TLS in front, an updater behind, and a unit that brings the stack back after a reboot. An overlay on compose.yaml rather than a second copy of it. COMPOSE_FILE in .env makes a bare `docker compose` read both, so neither the systemd unit nor a person at three in the morning has to remember a -f flag. What it changes is only what a public host needs and a laptop does not: - NOTHING IS PUBLISHED. The base file's 8080 mapping is dropped rather than narrowed. Caddy reaches the site over the compose network, and the safest number of host ports to argue about with Docker's iptables rules is none. - Caddy terminates TLS from a Cloudflare Origin CA certificate for the proxied names, and gets an ordinary Let's Encrypt one for crawler.mu-index.com over HTTP-01 — that name is DNS-only because the PTR has to forward-confirm, and port 80 reaching the box directly is that property doing a second job. - Submissions__TrustedProxyHops=2: Cloudflare, then Caddy, both appending to X-Forwarded-For. Wrong in either direction is a rate limit that buckets the whole internet together, or one that hands out a bucket per forged header. WATCHTOWER_LABEL_ENABLE is the load-bearing setting in the updater. Only `web` carries the enable label; postgres carries it set to false, because an automatic major-version bump refuses to start against an existing data directory and the catalogue is the asset (rule 3). The trade is written down rather than left to be discovered: a merge to main is on the public site within five minutes with no human in between, and the SHA tags are what make that survivable. Validated with Docker Compose 2.32.4 — the box's version, since !reset and !override are Compose features podman-compose does not implement — and the Caddyfile with `caddy validate`. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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* The crawler announced an address that answered nobody, and could not be told otherwise MUI_CRAWL_INFO_URL is spec §11's obligation — an admin who finds an unfamiliar connection in their logs has to be able to work out who we are and how to make us stop. ProbeOptions.InfoUrl carried a placeholder domain and nothing bound it, so there was no way to set it short of editing the source: the deployable, mui-crawl and mui-probe all announced https://muindex.example/crawler over TTYPE and MNES to every server they dialled. The default stays a placeholder now that §15.1 is settled, and that is the point. Compiling mu-index.com in would make every fork and every laptop run announce this deployment's contact page to the servers THEY dial — a claim about somebody else's crawl, in the shape of the ContactedMaintainer defect. The address is a thing a deployment says, never a default it inherits, and /about goes on marking the page when it holds the placeholder. - Crawler:Probe:InfoUrl, environment-first as MUI_CRAWL_INFO_URL, beside the two settings CrawlerSettings already read. - ProbeOptions.Validate refuses anything that is not an absolute https URL, called from CrawlerOptions.Validate, so a typo fails at startup rather than being published to strangers for six months. https because we hand the address to a reader with no way to check what they are opening. - mui-crawl takes --info-url and warns when a real cycle runs on the placeholder; a dry run dials nobody and owes nobody an address. mui-probe reads the same variable, because docs/deploy.md sends an operator there to dial twenty games before choosing a host. - /crawler, 302 to /about#about-crawler with the query string carried, answering HEAD as well as GET. Short because it is retyped by hand off a log line. A redirect rather than a page so there is one copy of what a probe does, and temporary rather than permanent because it says where the answer lives today. Also §15.1 and §15.3, which were open when docs/deploy.md was written and are not now: the domain, the Cloudflare records including why crawler must be DNS-only for the PTR to forward-confirm, and one small VM with the arithmetic that says the cost envelope is not what bounds probe frequency — politeness is, at about two per cent of our own rate ceiling. And the footgun under all of it: compose publishes ${MUI_PORT:-8080}:8080, and Docker writes its iptables rules ahead of ufw, so a host firewall denying 8080 does not close it. MUI_PORT takes an interface prefix; .env.example sets it to loopback and documents why, and .env is gitignored because the database password belongs in it. 1219 tests, five suites, clean build. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * How to start on a catalogue somebody already crawled Restoring a July dump onto main's schema works — MigrationRunner carries it forward — but only in one order: restore into a database the site has never started against, then start the site. The other way round, the restore collides with tables the migration run has just made. Verified against the real thing: 409 games, 432 endpoints, 709 crawl targets, 4,988 field values, 483 presence samples and 424 intervals from 2026-07-31, restored into a clean cluster, then migrated 0009 through 0013 and served with no demo banner. Two traps, both already sprung once. A catalogue from before §7.6's deletion carries import_provenance and a 0100_ ledger row naming a file this tree does not have; both are excluded here. And presence and availability rows carry no vantage point, so a catalogue crawled from a laptop merges into one crawled from the host with nothing able to tell them apart afterwards — the switch that takes the registry without the measurements is spelled out rather than left to be worked out under time pressure. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * Somewhere to deploy it to, and something that keeps it current The image has been published on every push to main since #26 and nothing pulled it. This is the other half: TLS in front, an updater behind, and a unit that brings the stack back after a reboot. An overlay on compose.yaml rather than a second copy of it. COMPOSE_FILE in .env makes a bare `docker compose` read both, so neither the systemd unit nor a person at three in the morning has to remember a -f flag. What it changes is only what a public host needs and a laptop does not: - NOTHING IS PUBLISHED. The base file's 8080 mapping is dropped rather than narrowed. Caddy reaches the site over the compose network, and the safest number of host ports to argue about with Docker's iptables rules is none. - Caddy terminates TLS from a Cloudflare Origin CA certificate for the proxied names, and gets an ordinary Let's Encrypt one for crawler.mu-index.com over HTTP-01 — that name is DNS-only because the PTR has to forward-confirm, and port 80 reaching the box directly is that property doing a second job. - Submissions__TrustedProxyHops=2: Cloudflare, then Caddy, both appending to X-Forwarded-For. Wrong in either direction is a rate limit that buckets the whole internet together, or one that hands out a bucket per forged header. WATCHTOWER_LABEL_ENABLE is the load-bearing setting in the updater. Only `web` carries the enable label; postgres carries it set to false, because an automatic major-version bump refuses to start against an existing data directory and the catalogue is the asset (rule 3). The trade is written down rather than left to be discovered: a merge to main is on the public site within five minutes with no human in between, and the SHA tags are what make that survivable. Validated with Docker Compose 2.32.4 — the box's version, since !reset and !override are Compose features podman-compose does not implement — and the Caddyfile with `caddy validate`. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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.github/workflows/had onlyci.yml, and there was no image, no compose file and no operationaldocument — the project could be built and tested but not run. This is the hosting-agnostic half of
that. It does not choose a host or a domain: spec §15.1 and §15.3 are open decisions and
docs/deploy.mdsays so explicitly, with the levers each one turns once it is answered.What is here
Dockerfile— multi-stage. SDK 10.0 publishes; the runtime layer isaspnet:10.0with no SDKand no package feed. Runs as the base image's
appuser (UID 1654) on 8080, and works under aread-only root filesystem because every write the process makes goes to Postgres.
compose.yaml— Postgres 17 plus the app, gated onpg_isreadyso the site does not startmigrating against a database that is still initialising.
MUI_POSTGRESis built from the samevariables, and there is a volume for the data-protection key ring so sign-in survives a restart.
.github/workflows/publish.yml— builds and pushes to GHCR on pushes tomain, as:latestand
:sha-<commit>, with a build-provenance attestation. Separate fromci.yml, which isuntouched: a broken registry credential must not read as a failing test. Its last step runs the
image it just pushed with no database and checks the demo banner is on the page.
docs/deploy.md— every environment variable, migrations at startup, what the advisory lockguarantees across replicas and what it does not, how to point the crawler at a seed list, and the
two open questions with their levers.
Three defects this turned up
migrations/sits outside the projectdirectory, and a glob that matches nothing is not an error to MSBuild, so a build context without
it compiled
MUI.Catalogwith an empty migration set;MigrationRunnerthen applied nothing andsaid nothing.
MUI.Catalog.csprojnow fails the build when the glob is empty, andMigrationRunner.ApplyAsyncrefuses to run when the assembly carries no scripts.nothing to dial.
MUI_CRAWL_SEEDSandMUI_CRAWL_ENABLEDare read exactly the wayMUI_POSTGRESis. Neither can exempt an address from §7.2's resolved-address gate — that stays
mui-crawl --seed-exempt, and there is a test asserting a configured127.0.0.1is not exempt.Seed parsing moves to
CrawlSeed.Parse, shared with the CLI.mainwas red. Testcontainers 4.13.0 pulls SSH.NET 2025.1.0, which now carries ahigh-severity advisory; with
TreatWarningsAsErrorsthat is NU1903 on restore. 4.14.0 takesSSH.NET 2026.0.0.
Also: the crawl loop's hosted service is now registered even when
Enabledis false, soCrawlerService's "the crawler is disabled" line can actually print. A replica that was meant tocrawl and is not looks exactly like one that was told not to.
Verified
dotnet build MUIndex.slnx -c Releaseclean, and all five suites run directly (Catalog 211, Crawl136, Crawler 77, Discovery 183, Web 225 — 832 passed, 0 failed, 0 skipped, with
MUI_REQUIRE_POSTGRES=true).Against Podman 6.0.2, on the image built from this Dockerfile:
MUI_POSTGRES— the site starts, logsserving DEMO data, and/,/g/eldertale,/archive,/ecosystemand/abouteach carry exactly onedemo-banner. Container runs asuid=1654(app);dotnet --list-sdksis empty.mush.pennmush.org:4201— applies all eight migrations, plantsthe seed, probes it, and serves
M*U*S*H, PennMUSH 1.8.8p0,playersNow: 20,playersNowState: measured. Zerodemo-banneron any page. A restart applies nothing; the ledgerstays at 8 rows.
Holding the crawl lease, oneAnother replica holds the crawl lease; this one will keep asking, oneThe crawler is disabled in configuration.pg_locksshows exactly one granted advisory lock. All three serve HTTP 200.Left to you
Hosting (§15.3), the domain (§15.1) and therefore
Passkeys:ServerDomain, the dataset licence(§15.2, already configuration), retention (§15.4), and the probe-frequency numbers the cost envelope
would set. Nothing here presumes an answer to any of them.
🤖 Generated with Claude Code
Summary by CodeRabbit
New Features
Bug Fixes
Documentation