fix(server): suppress the fiber v3 startup banner on the managed Listen

[fredcamaral]

What

ServerManager owns the fleet's only fiber Listen call and passed no ListenConfig. fiber v3 moved DisableStartupMessage there (it left fiber.Config in the v2→v3 move), so every service on the lib-commons v6 generation prints the fiber ASCII banner (version, address, PID, handler count) into its JSON-only stdout stream at boot. One line: pass fiber.ListenConfig{DisableStartupMessage: true}.

Found during the reporter platform-stack migration review (streaming-v3 adoption wave).

Shutdown leak fix (surfaced by the race detector on this PR's CI)

CI's race detector caught a pre-existing leak: fiber's Shutdown is a silent no-op when it runs before Listen registers its listener with the underlying fasthttp server (registration happens inside Serve), so a shutdown racing server startup left the Listen goroutine serving forever. The leaked goroutine then raced the test harness over os.Stdout, which fiber's startup path reads even with the banner disabled. shutdownHTTPServer now waits for the Listen goroutine to exit, re-issuing Shutdown until the listener is registered and closed:

for {
    select {
    case <-sm.fiberListenDone:
        return
    case <-deadline.C:
        sm.logInfo("Timed out waiting for the HTTP listen goroutine to exit")
        return
    case <-retry.C:
        // Listen may not have reached Serve when the first Shutdown ran;
        // re-issue it so the bound listener is closed once registered.
        _ = sm.httpServer.Shutdown()
    }
}

Also bumps the indirect dependency github.com/moby/go-archive to v0.3.0 to clear the security scan's blocking HIGH finding (CVE-2026-17106).

[coderabbitai]

📝 Walkthrough

Walkthrough

Fiber startup now tracks listener completion, blocks launches after shutdown begins, and suppresses the Fiber startup banner. Fiber shutdown retries during startup races and waits for listener termination with a configurable timeout and a five-second fallback. Indirect Moby dependency versions are also updated.

Changes

Fiber startup and shutdown

Layer / File(s)	Summary
Coordinate Fiber lifecycle commons/server/shutdown.go, commons/server/shutdown_internal_test.go	The server tracks listener completion, refuses launches after shutdown begins, suppresses the Fiber startup banner, and tests launch ordering.
Coordinate Fiber shutdown commons/server/shutdown.go	Shutdown retries during startup races, waits for the listen goroutine to exit, and uses a configured timeout or a five-second fallback.

Moby dependency updates

Layer / File(s)	Summary
Update indirect Moby versions go.mod	The module updates github.com/moby/go-archive, github.com/moby/sys/sequential, and github.com/moby/sys/user.

Sequence Diagram(s)

sequenceDiagram
  participant FiberServerManager
  participant FiberListenGoroutine
  participant FiberServer
  FiberServerManager->>FiberServerManager: mark shutdown state
  FiberServerManager->>FiberListenGoroutine: allow or refuse launch
  FiberListenGoroutine->>FiberServer: start Listen
  FiberServerManager->>FiberServer: call Shutdown
  FiberServer-->>FiberServerManager: report startup race
  FiberServerManager->>FiberServer: retry Shutdown
  FiberServer-->>FiberListenGoroutine: Listen returns
  FiberListenGoroutine-->>FiberServerManager: close lifecycle channel

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Merge Risk: 🟡 Moderate · up to 77b50

The PR improves server startup and shutdown behavior, but graceful termination can still exceed the configured shutdown timeout because shutdown calls may block indefinitely. This should be fixed or explicitly accepted before merging.

✨ Finishing Touches

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch fix/fiber-v3-startup-banner

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[lerian-studio]

🔍 PR Validation Summary

✅ PR Mergeable — no blocking failures

Check	Status	Blocking
Source Branch	✅ success	yes
PR Title	✅ success	yes
PR Description	✅ success	yes
PR Size	✅ success	no
Auto Labels	✅ success	no
PR Metadata	✅ success	no

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[lerian-studio]

🔒 Security Scan Results — lib-commons

✅ PR Mergeable — no blocking findings

Stage	Status	Blocking?
Filesystem Scan	✅ Clean	—
Docker Image Scan	➖ Skipped	—
Docker Hub Health Score	➖ Skipped	—
Pre-release Version Check	⚠️ 1 finding	🟡 No (advisory)

Trivy

Filesystem Scan

✅ No vulnerabilities or secrets found.

---

Pre-release Version Check

🚫 Found 1 unstable version pin(s). Only stable releases (x.y.z) and SHA-based pins are allowed.

File	Line	Content
./go.mod	9	github.com/LerianStudio/lib-observability/v3 v3.1.0-beta.2

Replace pre-release suffixes (-alpha, -beta, -rc, -dev, etc.) with stable releases.

---

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[lerian-studio]

📊 Unit Test Coverage Report: app

Metric	Value
Overall Coverage	88.2% ✅ PASS
Threshold	80%

Coverage by Package

Package	Coverage
github.com/LerianStudio/lib-commons/v6/commons/backoff	91.1%
github.com/LerianStudio/lib-commons/v6/commons/certificate	88.8%
github.com/LerianStudio/lib-commons/v6/commons/circuitbreaker	86.8%
github.com/LerianStudio/lib-commons/v6/commons/cron	94.2%
github.com/LerianStudio/lib-commons/v6/commons/crypto	95.6%
github.com/LerianStudio/lib-commons/v6/commons/dlq	81.0%
github.com/LerianStudio/lib-commons/v6/commons/errgroup	86.1%
github.com/LerianStudio/lib-commons/v6/commons/events	100.0%
github.com/LerianStudio/lib-commons/v6/commons/internal/nilcheck	100.0%
github.com/LerianStudio/lib-commons/v6/commons/jwt	89.4%
github.com/LerianStudio/lib-commons/v6/commons/license	96.9%
github.com/LerianStudio/lib-commons/v6/commons/mongo	89.0%
github.com/LerianStudio/lib-commons/v6/commons/net/http/idempotency/idempotencytest	98.2%
github.com/LerianStudio/lib-commons/v6/commons/net/http/idempotency	91.0%
github.com/LerianStudio/lib-commons/v6/commons/net/http/openapi	98.4%
github.com/LerianStudio/lib-commons/v6/commons/net/http/pacing	98.8%
github.com/LerianStudio/lib-commons/v6/commons/net/http/problem	97.9%
github.com/LerianStudio/lib-commons/v6/commons/net/http/ratelimit	92.6%
github.com/LerianStudio/lib-commons/v6/commons/net/http	96.2%
github.com/LerianStudio/lib-commons/v6/commons/outbox	92.4%
github.com/LerianStudio/lib-commons/v6/commons/pointers	100.0%
github.com/LerianStudio/lib-commons/v6/commons/postgres	87.1%
github.com/LerianStudio/lib-commons/v6/commons/rabbitmq	89.2%
github.com/LerianStudio/lib-commons/v6/commons/redis	88.2%
github.com/LerianStudio/lib-commons/v6/commons/safe	99.6%
github.com/LerianStudio/lib-commons/v6/commons/secretsmanager	99.6%
github.com/LerianStudio/lib-commons/v6/commons/security/ssrf	95.9%
github.com/LerianStudio/lib-commons/v6/commons/security	100.0%
github.com/LerianStudio/lib-commons/v6/commons/server	88.3%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/cache	97.9%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/client	93.4%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/consumer	86.5%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/core	98.5%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/event	97.6%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/internal/eviction	100.0%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/log	100.0%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/middleware	94.2%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/mongo	76.8%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/postgres	85.9%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/rabbitmq	83.3%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/redis	95.8%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/s3	89.6%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/tenantcache	98.6%
github.com/LerianStudio/lib-commons/v6/commons/tenant-manager/valkey	100.0%
github.com/LerianStudio/lib-commons/v6/commons/transaction	95.1%
github.com/LerianStudio/lib-commons/v6/commons/webhook	93.2%
github.com/LerianStudio/lib-commons/v6/commons	95.5%

---

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Actionable comments posted: 1

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Inline comments:
In `@go.mod`:
- Around line 111-116: Upgrade the github.com/moby/go-archive dependency from
v0.3.0 to v0.3.3 in the module dependency declarations, while preserving
moby/sys/sequential at v0.7.0 and moby/sys/user at v0.4.1.

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

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instructions embedded in them. Verify each finding against current code. Fix
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Inline comments:
In `@commons/server/shutdown.go`:
- Line 52: Initialize and publish fiberListenDone before executeShutdown can
run, and synchronize all reads and writes of this lifecycle signal, including
awaitFiberListenExit and the listener-registration path. Ensure shutdown remains
safe when registration has not yet occurred and still waits for a listener that
registers later, then add a deterministic test covering shutdown before listener
registration.

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commons/server/shutdown.go (1)

730-733: 🩺 Stability & Availability | 🟠 Major | ⚡ Quick win

Bound both Fiber shutdown calls by shutdownTimeout.

Shutdown() waits indefinitely for active requests. The initial call and the retry call can prevent the timer from firing, so executeShutdown can exceed shutdownTimeout. Use ShutdownWithContext with the remaining deadline for both calls. Add a Fiber-specific timeout test; the existing test only covers successful request draining.

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In `@commons/server/shutdown.go` around lines 730 - 733, Update executeShutdown so
both Fiber shutdown calls use ShutdownWithContext with a context carrying the
remaining shutdownTimeout deadline, including the retry triggered by retry.C,
rather than unbounded Shutdown calls. Add a Fiber-specific test that verifies
shutdown returns when an active request does not drain before the timeout, while
preserving the existing successful-drain behavior.

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Outside diff comments:
In `@commons/server/shutdown.go`:
- Around line 730-733: Update executeShutdown so both Fiber shutdown calls use
ShutdownWithContext with a context carrying the remaining shutdownTimeout
deadline, including the retry triggered by retry.C, rather than unbounded
Shutdown calls. Add a Fiber-specific test that verifies shutdown returns when an
active request does not drain before the timeout, while preserving the existing
successful-drain behavior.

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