fix(cli): fail deploy fast for an environment name hosting cannot route - #3669
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`veryfront deploy --env <name>` spent the full 120s readiness window and then
failed for every environment whose name is not preview, staging, or production
— including `development`, which reads like a natural deploy target.
The deploy itself succeeded. `buildEnvironmentUrl` then synthesised
`https://{slug}.{environment}.veryfront.com` unconditionally whenever the
environment had no custom domain, and `waitForEnvironmentReady` polled that
address. Only three labels are actually routable: `parseProjectDomain` resolves
a project for `{slug}.{preview|staging|production}.veryfront.com` and nothing
else, and only those three have wildcard certificates. Every other label fails
the TLS handshake or falls through to the custom-domain lookup and answers
`404 No project configured for domain` — both of which the poller classifies as
transient, so it retried to the deadline and reported a readiness timeout that
said nothing about environment names.
Name the routable set once, in the domain parser that decides it, and check it
in `resolve-target` before any release or deployment exists. An unreachable
target now costs one API call and an error that names preview, staging and
production, instead of a full deploy followed by a 120-second wait.
An environment with a custom domain is unaffected in either direction: routing
follows the domain, so the name is free, and the canonical companion probe for
protected custom-domain environments is no longer synthesised for a name the
platform cannot serve.
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📝 WalkthroughWalkthroughChangesHosted environment routability
Estimated code review effort: 3 (Moderate) | ~25 minutes Mergeability Score: ⚪ Minimal · up to The CLI now rejects unsupported hosted environment names before deployment work begins, while custom-domain environments continue to work; no actionable merge-blocking risk remains after normal checks and review. Sequence Diagram(s)sequenceDiagram
participant DeployProject
participant DomainParser
participant Environment
participant ReleaseDeployment
DeployProject->>DomainParser: Validate environment name
DeployProject->>Environment: Resolve configured domains
DeployProject->>DeployProject: Collect page routes and check readiness
DeployProject->>ReleaseDeployment: Create release and deployment
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CodeQL flagged the new fetch stubs (js/incomplete-url-substring-sanitization):
`.includes(".veryfront.com")` matches anywhere in the URL, so a path or query
could satisfy it. Harmless in a stub, but the wrong shape, and parsing the host
is what the stub meant in the first place.
Two findings from review.
The reachability check ran for every deploy, but only a deploy that probes a
hosted page address depends on the environment name resolving.
`buildEnvironmentReadinessProbes` returns no probe at all for a null readiness
route, so an API-only, agent-only, or otherwise page-less project never touches
the synthesised `{slug}.{env}.veryfront.com` host — and was being refused for a
name it would never have resolved. Page routes are now collected before the
environment is resolved, so the check still runs before any release or
deployment exists for the deploys that do need the address, and dry runs still
surface it.
`isHostedEnvironmentName` folded case but narrowed to a lowercase-only literal
type, so `"Production"` could be typed as `HostedEnvironmentName` while still
holding the unfolded string — enough to make an exhaustive switch or a keyed
lookup miss at runtime. It returns a plain boolean now, over a case-folding
helper that hands back the constant rather than the caller's spelling.
The new fixture used the type without importing it, which `deno test --no-check` cannot see but `lint:test-typecheck` does.
…alidation # Conflicts: # templates/manifest.json
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Conflicts, both resolved without hand-editing generated output:
cli/test-utils/deploy-test-support.ts - additive on both sides
(environmentDomains here, environmentProtected on main); kept both.
docs/api-reference/veryfront/server.md - generated; took main's copy
and re-ran generate-api-reference.ts, which reports the tree current
at 44 files.
Also corrects doc-vs-code drift this PR introduced between two of its own
commits. 1b7879c added the guide paragraph while the reachability check
was unconditional; 288db7a narrowed it to `readinessRoute !== null` and
left the prose stating a categorical rejection.
A project with no static page route has no address to probe, so it skips
the check and deploys under any environment name, and buildEnvironmentUrl
still synthesises an address for it. The PR's own test pins that behaviour
("still deploys a page-less project to an environment with no hosted
address"), so the guide, not the code, was wrong.
The synthesised address is left as is: it predates this PR and is equally
unresolvable for a page-less project on any environment name, so changing
it belongs in its own change.
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Inline comments:
In `@docs/guides/deploying.md`:
- Around line 121-128: Update the deploying guide’s environment validation and
URL behavior description to state that unsupported environment names are
rejected only for static-page deployments lacking a custom domain, while
API-only and agent projects may use arbitrary names; clarify that hosted URL
synthesis is skipped for unsupported names and retain the supported-name URL
behavior.
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- Push a commit to this branch (recommended)
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📒 Files selected for processing (15)
cli/shared/deployment/deploy-project.test.tscli/shared/deployment/deploy-project.tscli/test-utils/deploy-test-support.tsdocs/api-reference/veryfront/errors.mddocs/api-reference/veryfront/index.client.mddocs/api-reference/veryfront/index.mddocs/api-reference/veryfront/server.mddocs/guides/deploying.mddocs/guides/errors.mdsrc/errors/error-registry.test.tssrc/errors/error-registry/deploy.tssrc/errors/index.tssrc/server/index.tssrc/server/utils/domain-parser.test.tssrc/server/utils/domain-parser.ts
CodeRabbit was right and my previous wording was wrong. I claimed deploy still synthesises a veryfront.com address on the ungated path. It does not: buildEnvironmentUrl is only reached through buildReadyEnvironmentUrl inside the readiness path, which a page-less deploy skips. Verified rather than reasoned: instrumenting the PR's own page-less test to print the outcome URL reports null, not a synthesised host. Also moves the page-route qualifier inline on the first sentence, which reads better than trailing it a paragraph later.
…alidation # Conflicts: # docs/api-reference/veryfront/errors.md
Both sides added a DEPLOY error independently, so each branch was internally consistent and the merge produced a total neither test had seen: DEPLOY 13 -> 14, total 108 -> 109. Counts are read off the registry rather than guessed: TOTAL=109 DEPLOY=14, every other category unchanged.
#3680 rewrote docs/guides/deploying.md as "Manage Cloud deployments" and documents the same conditional in its own section: "Deploy chooses a readiness route only from static page routes. An API-only project or a project with only dynamic pages can deploy successfully without a root page returning 200." That is the drift this branch's paragraph existed to correct, and the original incorrect sentence is gone from docs/ entirely. Main's wording is better placed, so this takes main's file rather than reinstating a second description of the same behaviour. The code half of this PR is unchanged.
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The failure
veryfront deploy --env <name>waited the full 120-second readiness window andthen failed, for every environment whose name is not
preview,staging, orproduction. Those three work; every other name fails — includingdevelopment, which reads like a natural deploy target.The message the operator got named nothing useful:
There was nothing to check. The deployment was fine.
Mechanism
The deploy succeeds all the way through
verify-deployment. ThenbuildEnvironmentUrlsynthesisedhttps://{slug}.{environment}.veryfront.comunconditionally whenever the environment had no custom domain, and
waitForEnvironmentReadypolled that address.Only three labels are routable.
parseProjectDomainresolves a project for{slug}.{preview|staging|production}.veryfront.comand for nothing else; acomment there records that bare
{slug}.veryfront.comwas deliberately neverre-added. Anything outside that set falls through to the custom-domain lookup,
which owns no such domain.
Confirmed against live infrastructure:
*.production.veryfront.com*.staging.veryfront.com*.preview.veryfront.com*.development.veryfront.com404 {"error":"No project configured for domain: ..."}*.qa.veryfront.comBoth shapes land in
isTransientEnvironmentStatus(404) or thecatchthatrecords
"network error". Both are retried. So the poller retried a guaranteedfailure until the deadline, then reported a readiness timeout.
Note the two failure modes differ by parser branch, which is itself the
evidence:
productionreturns the branded HTML 404 (slug parsed, project notfound),
developmentreturns the JSON custom-domain 404 (host not recognised asa Veryfront domain at all).
Fix
Arbitrary environment names are genuinely not supported. Supporting one costs a
wildcard DNS record, a wildcard certificate, and a routing rule per label — not
something the CLI can arrange. So this takes the second option in the brief:
fail immediately, and say which names work.
HOSTED_ENVIRONMENT_NAMESis declared indomain-parser.ts, the module thatalready decides the question, and the hosted regexes are built from it. A lock
test asserts the constant and
parseProjectDomainagree in both directions, sothey cannot drift.
assertEnvironmentIsReachableruns inside theresolve-targetstep, beforeany release or deployment exists. An unreachable target costs one API call.
happened:
buildEnvironmentUrl, and the canonical companion probe thatbuildEnvironmentReadinessProbesadds for protected custom-domainenvironments.
An environment with a custom domain keeps working under any name — routing
follows the domain, so the name is irrelevant. That is the case the guard must
not break, and it has a test.
What the operator sees now, immediately:
Tests
Written first, run red, then fixed. The red run, with the readiness window
compressed to 1s by the existing test harness:
384 probes at an unreachable host in a 1s window; at the 120s default that is
the whole two minutes. The third test — an unroutable name that has a custom
domain — passed before the change and still passes, which is the point.
Green after:
Plus
fmt,lint,deno check,docs:errors:check,docs:public:check,dependency/module boundary audits, and the full pre-push suite.
Docs
The brief asked which of docs or product must change. Docs. The product
cannot cheaply route arbitrary names, and
developmentis specifically alocal environment in this codebase —
ParsedDomainproduces it forlvh.me,localhost, andveryfront.dev, where it means "running on this machine". Nohosted rule produces it.
The over-promise is in
docs/guides/deploying.md, which writeshttps://<slug>.<environment>.veryfront.comas a generic template and soimplies any
<environment>resolves. Corrected here, naming the three andpointing at custom domains for anything else.
docs/guides/errors.mdisgenerated and regenerated for the new error code.
One correction to the report, for the record: I could not confirm that any
published page recommends
--env development. Acrossdocs/the only valuesused are
staging(9) andproduction(7), and the five live pages I checked(
guides/deploying,getting-started/deploy-project,guides/configuration,guides/deploy-from-ci,getting-started/quickstart) contain no--env developmentand no.development.veryfront.com. What the docs did do isimply it, via the bare
<environment>template — which is the thing correctedhere. If a page outside this repo recommends the name outright, it needs the
same correction.
Follow-up, not in this PR
cli/commands/open/command.ts:70synthesises the same URL just asunconditionally.
open --env developmentopens a browser at a 404 rather thansaying why. Same defect, no timeout, so it did not belong in this change.
suggests a name outside the routable set, it should say what that name costs
before the environment is created.
templates/manifest.jsonis stale onmain(anai-ruleswording changenever regenerated). Unrelated to this PR and deliberately left alone.
Summary by CodeRabbit
New Features
preview,staging, andproduction.Bug Fixes
environment-not-routableerror with HTTP 400 guidance.Documentation