Security features overview

[adamoutler]

Summary by CodeRabbit

• Documentation
  • Restructured migration guide with clearer upgrade paths for different scenarios, version-specific step-by-step instructions, updated configuration examples, and comprehensive backup recommendations.
  • Added new security features documentation explaining six defensive mechanisms that protect user data, enforce least-privilege execution, minimize attack surface, and guarantee resource governance.

[coderabbitai]

Walkthrough

NetAlertX documentation is expanded with restructured migration guidance and a new security architecture document. MIGRATION.md now includes explicit migration scenarios with step-by-step instructions and version-specific examples. SECURITY_FEATURES.md introduces a new file documenting six layered defensive mechanisms including immutable filesystems, least-privilege execution, attack surface reduction, ephemeral storage, resource limits, and boot-time validation.

Changes

Cohort / File(s)	Summary
Documentation Updates docs/MIGRATION.md	Restructured and expanded with new "Migration scenarios" section, explicit migration paths (PiAlert-to-NetAlertX and NetAlertX version-based), step-by-step numbered instructions, updated docker-compose.yml examples, manual migration subsection, and version-specific guidance
New Security Documentation docs/SECURITY_FEATURES.md	New file detailing six-layer defensive security model: immutable filesystem, non-privileged execution, attack surface reduction, ephemeral in-memory storage, resource guardrails, and boot-time validation checks

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

• Verify accuracy of migration paths and version sequences in MIGRATION.md
• Confirm security feature descriptions align with actual implementation in docker-compose.yml and Dockerfile

Poem

🐰 Hop through the migration, secure and bright,
Six defensive layers stand ready for flight,
Docs clear the path, from old steps to new,
A rabbit-approved guide, both tested and true! ✨

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	You can run @coderabbitai generate docstrings to improve docstring coverage.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The PR title "Security features overview" directly corresponds to the primary change in the changeset: the addition of a new docs/SECURITY_FEATURES.md file that provides a comprehensive overview of a layered security model with six defensive features. The title is clear, concise, and specifically describes the most significant addition to the repository. While the PR also includes restructuring of the MIGRATION.md documentation, the new security features documentation appears to be the main focus, and the title accurately captures this primary change. A developer scanning the commit history would clearly understand that this PR introduces security documentation.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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Actionable comments posted: 0

🧹 Nitpick comments (2)

docs/SECURITY_FEATURES.md (2)

25-29: Minor style: Shorten "absolutely require" for conciseness.

Line 29 reads: "...permissions only to the binaries that absolutely require them..."

Consider: "...permissions only to the binaries that require them..."

The word "absolutely" is implied by the context ("only") and can be omitted.

---

69-79: Minor grammar: Use "who" for the auditor (person) rather than "that".

Line 71 reads: "It's like a built-in auditor that verifies its own defenses."

Since "auditor" is a person (or personified entity), use "who" instead: "...auditor who verifies its own defenses."

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5962312 and 6afa52e.

📒 Files selected for processing (2)

• docs/MIGRATION.md (6 hunks)
• docs/SECURITY_FEATURES.md (1 hunks)

🧰 Additional context used

🪛 LanguageTool

docs/SECURITY_FEATURES.md

[style] ~29-~29: ‘absolutely require’ might be wordy. Consider a shorter alternative.
Context: ...permissions only to the binaries that absolutely require them (like nmap and arp-scan). This...

(EN_WORDINESS_PREMIUM_ABSOLUTELY_REQUIRE)

---

[style] ~55-~55: You can shorten this phrase to improve clarity and avoid wordiness.
Context: ...xecution of any binary or script** from a location that is writable. What's this mean to you: Any mali...

(NNS_THAT_ARE_JJ)

---

[style] ~71-~71: Consider using “who” when you are referring to a person instead of an object.
Context: ...are sound. It's like a built-in auditor that verifies its own defenses. * **Active ...

(THAT_WHO)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)

• GitHub Check: docker_dev

🔇 Additional comments (1)

docs/MIGRATION.md (1)

213-249: Clarify the status of the incomplete Section 1.3 migration path.

Section 1.3 is marked as "under development" with placeholder text (line 225: "🔻 TBC 🔺"). While the WARNING is explicit, users running v25.10.1 may still attempt this migration, only to find incomplete instructions.

Consider one of these approaches:

• Move Section 1.3 to a separate "Upcoming Migrations" section at the end of the document so the main migration paths are clearly complete.
• Add a clear note in the main scenarios table (around line 16–17) stating that v25.10.1 users should wait for future guidance.
• Defer this section to a follow-up PR and exclude it from this release.