docs(02-02): complete Diátxis documentation plan

.planning/phases/02-lab-01-iam-sicurezza/02-02-SUMMARY.md

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+---
+phase: 02-lab-01-iam-sicurezza
+plan: 02
+subsystem: [documentation, iam, docker, linux]
+tags: [diataxis, tutorials, how-to-guides, reference, explanation, iam, docker-permissions]
+
+# Dependency graph
+requires:
+  - phase: 02-lab-01-iam-sicurezza/01
+    provides: [test infrastructure, test scripts for IAM validation]
+provides:
+  - Complete Diátaxis documentation for Lab 01 IAM & Sicurezza
+  - Tutorials covering Linux user creation, Docker group permissions, and non-root container verification
+  - How-to guides for common IAM procedures
+  - Reference documents with technical specifications
+  - Explanation document mapping Docker concepts to AWS IAM
+affects: [02-lab-01-iam-sicurezza/03, all future labs requiring IAM documentation]
+
+# Tech tracking
+tech-stack:
+  added: [Diátaxis framework documentation]
+  patterns: [4-quadrant documentation structure, tutorial-driven learning, reference tables for cloud parallels]
+
+key-files:
+  created: [labs/lab-01-iam/tutorial/*.md, labs/lab-01-iam/how-to-guides/*.md, labs/lab-01-iam/reference/*.md, labs/lab-01-iam/explanation/*.md]
+  modified: []
+
+key-decisions:
+  - "Italian language for all documentation (as per CLAUDE.md)"
+  - "No emojis in documentation (as per plan requirements)"
+  - "Direct, simple language with step-by-step verification"
+  - "IAM parallels prominently featured in tutorials and explanation"
+
+patterns-established:
+  - "Pattern 1: Each tutorial follows 'little often' principle with small incremental steps"
+  - "Pattern 2: Every tutorial has troubleshooting section"
+  - "Pattern 3: Cross-references between related documents"
+  - "Pattern 4: Side-by-side comparison tables for local/cloud concepts"
+
+requirements-completed: [LAB-01, DOCT-01, DOCT-02, DOCT-03, DOCT-04, DOCT-05, PARA-01, PARA-03, PARA-04]
+
+# Metrics
+duration: 4min
+completed: 2026-03-24
+---
+
+# Phase 2 Plan 02: Diátaxis Documentation Summary
+
+**Complete Diátaxis framework documentation for Lab 01 IAM & Sicurezza with 10 files covering tutorials, how-to guides, reference specs, and IAM parallelism explanations**
+
+## Performance
+
+- **Duration:** 4 min
+- **Started:** 2026-03-24T21:23:26Z
+- **Completed:** 2026-03-24T21:27:15Z
+- **Tasks:** 6
+- **Files modified:** 10
+
+## Accomplishments
+
+- Created 3 tutorial documents following step-by-step "little often" principle
+- Created 3 how-to guides for common IAM procedures
+- Created 3 reference documents with technical specifications and tables
+- Created 1 explanation document mapping Docker concepts to AWS IAM
+- All documentation in Italian without emojis as per project guidelines
+- All files include cross-references to related content
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Create Tutorial - Part 1: Linux Users** - `b130b1c` (feat)
+2. **Task 2: Create Tutorial - Part 2: Docker Group Permissions** - `b031f58` (feat)
+3. **Task 3: Create Tutorial - Part 3: Verification and Non-Root Containers** - `7bd6111` (feat)
+4. **Task 4: Create How-to Guides** - `c759270` (feat)
+5. **Task 5: Create Reference Documents** - `cc3a28f` (feat)
+6. **Task 6: Create Explanation Document (IAM Parallels)** - `7723582` (feat)
+
+**Plan metadata:** TBD (docs: complete plan)
+
+## Files Created/Modified
+
+### Tutorials (3 files)
+- `labs/lab-01-iam/tutorial/01-create-linux-users.md` - Step-by-step user creation guide with verification
+- `labs/lab-01-iam/tutorial/02-docker-group-permissions.md` - Docker group permissions with IAM parallels
+- `labs/lab-01-iam/tutorial/03-verify-iam-setup.md` - Verification and non-root container execution
+
+### How-to Guides (3 files)
+- `labs/lab-01-iam/how-to-guides/add-user-to-docker-group.md` - Quick guide for adding users to docker group
+- `labs/lab-01-iam/how-to-guides/verify-non-root-container.md` - Multiple methods to verify non-root execution
+- `labs/lab-01-iam/how-to-guides/reset-docker-permissions.md` - Complete permission reset guide with troubleshooting
+
+### Reference Documents (3 files)
+- `labs/lab-01-iam/reference/docker-socket-permissions.md` - Docker socket technical specifications
+- `labs/lab-01-iam/reference/linux-users-groups.md` - Linux user management reference
+- `labs/lab-01-iam/reference/iam-parallels.md` - Quick reference table for IAM parallelism
+
+### Explanation (1 file)
+- `labs/lab-01-iam/explanation/docker-iam-parallels.md` - Conceptual mapping between Docker and AWS IAM with practical examples
+
+## Decisions Made
+
+- Italian language used throughout all documentation (as per CLAUDE.md requirements)
+- No emojis used in any documentation (as per plan specifications)
+- Each tutorial includes troubleshooting section for common issues
+- Cross-references included between related documents (tutorial → how-to → reference → explanation)
+- IAM parallels prominently featured to meet PARA-01, PARA-03, PARA-04 requirements
+- "Little often" principle applied with small incremental steps and verification
+
+## Deviations from Plan
+
+None - plan executed exactly as written. All 6 tasks completed without deviations:
+- Task 1: Tutorial part 1 created with 162 lines (60+ required)
+- Task 2: Tutorial part 2 created with 180 lines (60+ required) and IAM parallels
+- Task 3: Tutorial part 3 created with 232 lines (40+ required) and INF-01 coverage
+- Task 4: 3 how-to guides created with 20 sections total (9+ required)
+- Task 5: 3 reference documents created with 15+ tables
+- Task 6: Explanation document created with 361 lines (80+ required) and AWS IAM coverage
+
+All verification tests passed. No auto-fixes were needed.
+
+## Issues Encountered
+
+None - all tasks executed smoothly without issues.
+
+## User Setup Required
+
+None - no external service configuration required. All documentation is self-contained within the repository.
+
+## Next Phase Readiness
+
+- Diátaxis documentation complete and ready for student use
+- All 4 quadrants (Tutorial, How-to, Reference, Explanation) implemented
+- Test infrastructure from plan 02-01 integrates with documentation
+- Ready for plan 02-03 (implementation phase - GREEN phase to make tests pass)
+
+The documentation establishes the foundation for students to learn IAM concepts through local Docker/Linux user management, with clear parallels to AWS IAM for knowledge transfer to cloud environments.
+
+---
+*Phase: 02-lab-01-iam-sicurezza*
+*Plan: 02*
+*Completed: 2026-03-24*