rustfs/docs/README.md

RustFS Documentation Center

Welcome to the RustFS distributed file system documentation center!

📚 Documentation Navigation

⚡ Performance Optimization

RustFS provides intelligent performance optimization features for different workloads.

Document	Description	Audience
Adaptive Buffer Sizing	Intelligent buffer sizing optimization for optimal performance across workload types	Developers and system administrators
Phase 3 Migration Guide	Migration guide from Phase 2 to Phase 3 (Default Enablement)	Operations and DevOps teams
Phase 4 Full Integration Guide	Complete guide to Phase 4 features: deprecated legacy functions, performance metrics	Advanced users and performance engineers
Performance Testing Guide	Performance benchmarking and optimization guide	Performance engineers

🔐 KMS (Key Management Service)

RustFS KMS delivers enterprise-grade key management and data encryption.

Document	Description	Audience
KMS User Guide	Comprehensive KMS guide with quick start, configuration, and deployment steps	Required reading for all users
HTTP API Reference	HTTP REST API reference with usage examples	Administrators and operators
Programming API Reference	Rust library APIs and code samples	Developers
Configuration Reference	Complete configuration options and environment variables	System administrators
Troubleshooting	Diagnosis tips and solutions for common issues	Operations engineers
Security Guide	Security best practices and compliance guidance	Security architects

🚀 Quick Start

1. Deploy KMS in 5 Minutes

Production (Vault backend)

# 1. Enable the Vault feature flag
cargo build --features vault --release

# 2. Configure environment variables
export RUSTFS_VAULT_ADDRESS=https://vault.company.com:8200
export RUSTFS_VAULT_TOKEN=hvs.CAESIJ...

# 3. Launch the service
./target/release/rustfs server

Development & Testing (Local backend)

# 1. Build a release binary
cargo build --release

# 2. Configure local storage
export RUSTFS_KMS_BACKEND=Local
export RUSTFS_KMS_LOCAL_KEY_DIR=/tmp/rustfs-keys

# 3. Launch the service
./target/release/rustfs server

2. S3-Compatible Encryption

# Upload an encrypted object
curl -X PUT https://rustfs.company.com/bucket/sensitive.txt \
  -H "x-amz-server-side-encryption: AES256" \
  --data-binary @sensitive.txt

# Download with automatic decryption
curl https://rustfs.company.com/bucket/sensitive.txt

🏗️ Architecture Overview

Three-Layer KMS Security Architecture

┌─────────────────────────────────────────────────┐
│                  Application Layer              │
│  ┌─────────────┐    ┌─────────────┐             │
│  │    S3 API    │    │   REST API  │             │
│  └─────────────┘    └─────────────┘             │
├─────────────────────────────────────────────────┤
│                  Encryption Layer               │
│  ┌─────────────┐ Encrypt ┌─────────────────┐    │
│  │ Object Data │ ◄──────► │ Data Key (DEK) │    │
│  └─────────────┘          └─────────────────┘   │
├─────────────────────────────────────────────────┤
│                 Key Management Layer            │
│  ┌─────────────────┐ Encrypt ┌──────────────┐   │
│  │ Data Key (DEK) │ ◄───────│  Master Key   │   │
│  └─────────────────┘        │ (Vault/HSM)  │   │
│                             └──────────────┘   │
└─────────────────────────────────────────────────┘

Key Features

• ✅ Multi-layer encryption: Master Key → DEK → Object Data
• ✅ High performance: 1 MB streaming encryption with large file support
• ✅ Multiple backends: Vault (production) + Local (testing)
• ✅ S3 compatibility: Supports standard SSE-S3/SSE-KMS headers
• ✅ Enterprise-ready: Auditing, monitoring, and compliance features

📖 Learning Paths

👨‍💻 Developers

1. Read the Programming API Reference to learn the Rust library
2. Review the sample code to understand integration patterns
3. Consult Troubleshooting when issues occur

👨‍💼 System Administrators

1. Start with the KMS User Guide
2. Learn the HTTP API Reference for management tasks
3. Study the Configuration Reference in depth
4. Configure monitoring and logging

👨‍🔧 Operations Engineers

1. Become familiar with the HTTP API Reference for day-to-day work
2. Master the Troubleshooting procedures
3. Understand the requirements in the Security Guide
4. Establish operational runbooks

🔒 Security Architects

1. Dive into the Security Guide
2. Evaluate threat models and risk posture
3. Define security policies

🤝 Contribution Guide

We welcome community contributions!

Documentation Contributions

# 1. Fork the repository
git clone https://github.com/your-username/rustfs.git

# 2. Create a documentation branch
git checkout -b docs/improve-kms-guide

# 3. Edit the documentation
# Update Markdown files under docs/kms/

# 4. Commit the changes
git add docs/
git commit -m "docs: improve KMS configuration examples"

# 5. Open a Pull Request
gh pr create --title "Improve KMS documentation"

Documentation Guidelines

• Use clear headings and structure
• Provide runnable code examples
• Include warnings and tips where appropriate
• Support multiple usage scenarios
• Keep the content up to date

📞 Support & Feedback

Getting Help

• GitHub Issues: https://github.com/rustfs/rustfs/issues
• Discussion Forum: https://github.com/rustfs/rustfs/discussions
• Documentation Questions: Open an issue on the relevant document
• Security Concerns: security@rustfs.com

Issue Reporting Template

When reporting a problem, please provide:

**Environment**
- RustFS version: v1.0.0
- Operating system: Ubuntu 20.04
- Rust version: 1.75.0

**Issue Description**
Summarize the problem you encountered...

**Reproduction Steps**
1. Step one
2. Step two
3. Step three

**Expected Behavior**
Describe what you expected to happen...

**Actual Behavior**
Describe what actually happened...

**Relevant Logs**
```bash
# Paste relevant log excerpts

Additional Information Any other details that may help...

## 📈 Release History

| Version | Release Date | Highlights |
|------|----------|----------|
| v1.0.0 | 2024-01-15 | 🎉 First official release with full KMS functionality |
| v0.9.0 | 2024-01-01 | 🔐 KMS system refactor with performance optimizations |
| v0.8.0 | 2023-12-15 | ⚡ Streaming encryption with 1 MB block size tuning |

## 🗺️ Roadmap

### Coming Soon (v1.1.0)

- [ ] Automatic key rotation
- [ ] HSM integration support
- [ ] Web UI management console
- [ ] Additional compliance support (SOC2, HIPAA)

### Long-Term Plans

- [ ] Multi-tenant key isolation
- [ ] Key import/export tooling
- [ ] Performance benchmarking suite
- [ ] Kubernetes Operator

## 📋 Documentation Feedback

Help us improve the documentation!

**Was this documentation helpful?**
- 👍 Very helpful
- 👌 Mostly satisfied
- 👎 Needs improvement

**Suggestions for improvement:**
Share specific ideas via GitHub Issues.

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**Last Updated**: 2024-01-15
**Documentation Version**: v1.0.0

*Thank you for using RustFS! We are committed to delivering the best distributed file system solution.*