flood: move the BLE load generator out to ESPresense/ble-loadgen

[DTTerastar]

The BLE flood shares nothing with firmware-tester — no PlatformIO, no serial, no toolchain, just Python stdlib and a raw HCI socket. It now lives in its own repo, ESPresense/ble-loadgen, with its own tiny image (ghcr.io/espresense/ble-loadgen:1, released v1.0.0), and runs as a detached step in the HIL pipeline.

What this removes

• scripts/ble_flood.py
• bench/ble-flood.service (the host systemd unit — which was never installed, so it never actually flooded)
• bench/README.md (host setup for the above)

What stays

scripts/hil_monitor.py — the DUT-side heap-trend detection is this repo's job and is unaffected.

Companion: ESPresense/ESPresense#2432 points the HIL flood step at the new ble-loadgen:1 image. No v1.0.x firmware-tester tag needed for this — it only deletes files.

[coderabbitai]

Walkthrough

Changes

BLE flooding execution and deployment

Layer / File(s)	Summary
Continuous flood execution scripts/ble_flood.py	BLE flooding no longer uses request files or stale-request checks. The script continuously rotates advertisements until stopped or --seconds expires. Self-test options and startup wiring were updated.
Pipeline deployment and bench setup Dockerfile, bench/README.md, bench/ble-flood.service	The image includes the flood script. Bench documentation now describes detached pipeline execution with host networking, USB adapter access, and disabled BlueZ. The systemd service and request-file workflow were removed.

Possibly related PRs

• ESPresense/firmware-tester#9: Introduced the BLE flooding implementation and systemd integration revised by this pull request.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title identifies the BLE load generator change but does not clearly state the main transition from systemd to a detached HIL pipeline step.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch hil/flood-in-pipeline

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@bench/README.md`:
- Around line 13-27: Update the detached firmware-tester step configuration in
.woodpecker/hil.yml to grant CAP_NET_ADMIN via NET_ADMIN, and revise this
README’s host/setup requirements to document that capability requirement for
scripts/ble_flood.py’s HCI_CHANNEL_USER bind.

In `@scripts/ble_flood.py`:
- Around line 15-20: Update the HIL detached pipeline invocation for
ble_flood.py to use the absolute command python3 /scripts/ble_flood.py, or
explicitly add /scripts to PATH before starting it; preserve the existing
arguments and execution modes.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 8334484d-f0a2-4208-9779-caf285b70103

📥 Commits

Reviewing files that changed from the base of the PR and between 4c4ca9c and 2d7505d.

📒 Files selected for processing (4)

• Dockerfile
• bench/README.md
• bench/ble-flood.service
• scripts/ble_flood.py

💤 Files with no reviewable changes (1)

• bench/ble-flood.service