3 Commits

Author SHA1 Message Date
shankar0123 8b75e0311b chore: rename Go module path to github.com/certctl-io/certctl
Mechanical sed across the main go.mod's module declaration, the f5-mock-icontrol
sub-module's go.mod, every Go file's import path (361 files), and a rebuild of
the checked-in f5-mock-icontrol binary so its embedded build-info reflects the
new module path. No behavior change.

Choice B from cowork/transfer-certctl-to-org.md, executed 2026-05-04. Choice A
(keep module path declared as github.com/shankar0123/certctl regardless of
repo URL) shipped on the day of the org transfer (2026-05-03) since we had no
external Go consumers; this commit closes that deferral.

Backward-compat: GitHub HTTP redirects continue to forward
github.com/shankar0123/certctl → github.com/certctl-io/certctl at the URL
level, but Go's module proxy uses the path declared in go.mod as the
canonical name. Pre-fix, anyone trying `go get github.com/certctl-io/certctl/...`
hit a "module path mismatch" error because go.mod said
github.com/shankar0123/certctl and the URL they fetched it from said
certctl-io/certctl. Post-fix, the canonical name and the URL agree, so
go get / go install / external Go consumers / Go-tooling integrations
work cleanly via either the new path (preferred) or the old path (which
redirects and Go follows the redirect for source fetch).

Anyone still importing the old path inside their own code keeps working
provided they update their go.mod's `require` line to match — the module
path declared in their consumer's go.sum / go.mod is the authoritative
import name, so a mass sed across their import statements is the migration
on the consumer side. No external consumers exist today.

Diff shape:
  361 *.go files  — import path replacement only
    2 go.mod     — module declaration replacement only
    1 binary     — deploy/test/f5-mock-icontrol/f5-mock-icontrol rebuilt
                   so embedded build-info reflects the new path (8618965 vs
                   8618933 bytes; 32-byte diff is the build-info change)

  Total: 364 files, 730 insertions / 730 deletions, net-zero size, pure
  mechanical substitution.

Verification:
  gofmt: 17 files needed re-alignment after sed (the new path is one char
    shorter than the old, so column-aligned import groups drifted). Applied
    `gofmt -w` to fix.
  go mod tidy: clean exit on both modules.
  go vet ./...: clean exit.
  go build ./...: clean exit.
  go test -short -count=1 on representative packages: all green
    (internal/domain, internal/validation, internal/crypto, internal/crypto/signer,
    cmd/agent). Test output now reads `ok github.com/certctl-io/certctl/...`
    confirming the module path resolves correctly.
  binary: f5-mock-icontrol rebuilt; `strings | grep shankar0123` returns
    nothing; `strings | grep certctl-io/certctl` shows the new module path
    embedded in build-info.

Files intentionally NOT touched in this commit:
  README.md / CHANGELOG.md / docs/ / etc. — already swept to certctl-io
    URLs in commit 0729ee4 (the post-transfer URL refresh). This commit is
    purely the Go-tooling layer.
  Scarf pixels (`shankar0123.docker.scarf.sh/...`) — Scarf-account
    namespace, not a Go import or GitHub repo URL. Stays.

This is a non-blocking, non-customer-impacting change. Operators pulling
container images, running `make verify`, hitting the API, or installing the
agent see no functional difference. Only Go-tooling consumers (none today)
are affected, and they're enabled — not broken — by this commit.
2026-05-04 00:30:29 +00:00
shankar0123 475421457f fix(test): TestBoundedFanOut_SkipsAgentRoutedDeployments race on seenIDs slice
CI race detector flagged TestBoundedFanOut_SkipsAgentRoutedDeployments
on commit 35e18bf (audit fix #9). The test's `work` closure was
appending to a plain []string slice from worker goroutines without
synchronisation:

    var seenIDs []string
    work := func(ctx context.Context, job *domain.Job) error {
        seen.Add(1)
        seenIDs = append(seenIDs, job.ID)  // race
        return nil
    }

atomic.Int64 covered the count assertion but the slice header itself
is the racing memory — race detector caught both the read+write race
on the slice header and the runtime.growslice path on append.

Fix: protect seenIDs with a sync.Mutex. The slice is only used in
the failure-message branch (`t.Errorf` ids=%v formatting), so the
contention is irrelevant to performance — correctness only.

Also locked around the read in the t.Errorf format-args evaluation,
since that read happens AFTER boundedFanOut returns (and Wait()
inside boundedFanOut synchronizes the worker goroutines), but the
explicit Lock/Unlock makes the synchronisation visible without
depending on the implicit happens-before from Wait.

The other five tests in the file (TestBoundedFanOut_CapHolds,
_AllJobsRun, _CtxCancelInterrupts, _FailedJobsCounted,
TestSetRenewalConcurrency_NormalizesNonPositive) only mutate
atomic.Int64 counters from worker goroutines, so they were
already race-clean.

Verified locally: go test -race -count=1 -run
'TestBoundedFanOut|TestSetRenewalConcurrency' ./internal/service/...
green.
2026-05-02 14:34:48 +00:00
shankar0123 35e18bfc56 scheduler: bound renewal concurrency via CERTCTL_RENEWAL_CONCURRENCY
Closes the #9 acquisition-readiness blocker from the 2026-05-01 issuer
coverage audit. Pre-fix, JobService.ProcessPendingJobs ran every
claimed job sequentially in a single goroutine: safe but slow, and
operators with large fleets had no lever to dial throughput up.
Switching to fire-and-forget per-job goroutines would have unbounded
the upstream-CA call rate and tripped DigiCert / Entrust / Sectigo
rate limits — certctl's response to 429 was to retry on the next
tick, re-fanning out the same calls and digging deeper into the
limit. Operators need a knob.

This commit:

- Adds CERTCTL_RENEWAL_CONCURRENCY env var (default 25) loaded via
  the existing getEnvInt pattern in internal/config/config.go.
  Documented inline as the cap for the per-tick renewal/issuance/
  deployment goroutine fan-out, with operator-tuning guidance:
  permissive upstream limits + large fleets (>10k certs) → 100;
  strict limits or async-CA-heavy fleets → 25 or lower.

- Wires golang.org/x/sync/semaphore.Weighted around the per-job
  goroutine launch in JobService.ProcessPendingJobs. Acquire(ctx, 1)
  is the load-bearing piece — it BLOCKS the loop when at the cap,
  providing real backpressure rather than fire-and-forget. The
  fan-out is split into processPendingJobsSequential (legacy,
  preserved for unit-test wiring that doesn't call
  SetRenewalConcurrency) and processPendingJobsConcurrent (production,
  delegates to a generic boundedFanOut helper).

- boundedFanOut takes the per-job work as a closure so the cap can
  be tested directly without standing up the renewal/deployment
  service graph. processed/failed counters use atomic.Int64 to
  avoid mutex overhead on every job completion; final log line
  reads both AFTER wg.Wait so the counts reflect every dispatched
  job. ctx-aware Acquire ensures a shutdown ctx cancel interrupts
  the dispatch loop promptly; in-flight goroutines drain via Wait
  before the function returns so no goroutine outlives the
  scheduler tick.

- shouldSkipJob extracted as a package-private helper so the
  agent-routed-deployment skip logic is shared between the
  sequential and concurrent paths byte-for-byte (the audit prompt's
  "channel-based semaphore without ctx-aware acquire" anti-pattern
  is explicitly avoided — semaphore.Weighted.Acquire returns on ctx
  done; channel <- struct{}{} would block forever).

- SetRenewalConcurrency setter on JobService normalises ≤0 to 1.
  semaphore.NewWeighted(0) constructs a semaphore that blocks every
  Acquire forever; the normalisation prevents a misconfigured env
  var from wedging the scheduler.

- cmd/server/main.go wires SetRenewalConcurrency(cfg.Scheduler.
  RenewalConcurrency) on the freshly-built jobService, immediately
  after SetAuditService. Production deployments always take the
  bounded path; tests that build JobService directly via
  NewJobService keep their strict-sequential behaviour because
  renewalConcurrency is the zero value.

- Tests in internal/service/job_concurrency_test.go:
  * TestBoundedFanOut_CapHolds — primary regression guard. 50 jobs
    × 50ms work × cap=5 → asserts peak in-flight never exceeds 5
    AND reaches 5 at least once (catches both upper-bound regressions
    and gates that incorrectly cap below the configured value).
    Lock-free max via CompareAndSwap so the measurement instrument
    doesn't itself constrain concurrency.
  * TestBoundedFanOut_AllJobsRun — lower-bound: every non-skipped
    job is dispatched.
  * TestBoundedFanOut_SkipsAgentRoutedDeployments — pins the
    shouldSkipJob contract.
  * TestBoundedFanOut_CtxCancelInterrupts — ctx cancellation
    interrupts a stuck fan-out within the timeout budget.
  * TestBoundedFanOut_FailedJobsCounted — per-job errors don't
    abort the fan-out.
  * TestSetRenewalConcurrency_NormalizesNonPositive — ≤0 → 1 fail-safe
    pinned across negative/zero/positive inputs.

- docs/features.md: scheduler-loop table augmented with the
  concurrency-cap env-var pointer alongside the job-processor row.

- docs/architecture.md: Concurrency Safety section gains a paragraph
  explaining the cap, the operator-tuning guidance, the ctx-aware
  Acquire semantics, and the audit reference.

Operator-facing impact: the first big renewal sweep no longer
takes down the upstream CA's rate-limit budget. Existing deployments
get the bounded path automatically (default 25); operators can
override via env var without code changes.

Verified locally:
- gofmt -l . clean
- go vet ./... clean
- staticcheck ./... clean
- go test -short -count=1 across service / scheduler / config /
  integration: green
- Six new tests under TestBoundedFanOut* + TestSetRenewalConcurrency*:
  green

Audit reference: cowork/issuer-coverage-audit-2026-05-01/RESULTS.md
Top-10 fix #9.
2026-05-02 14:12:30 +00:00