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    HMAC File Server 3.2 – Tremora del Terra

    renz released this 2025-07-18 16:30:40 +02:00 | 19 commits to main since this release

    HMAC File Server 3.2 – Tremora del Terra 🚀

    Every release now gets a name – because "stable" is boring.
    This one's called Tremora del Terra: powerful, balanced, and ready to shake the ground.

    🎯 Key Features Highlighted

    Configuration Revolution ⚙️

    • Simplified Config Experience: Reduced from 112-line complex configs to 8-line minimal configs
    • Smart Defaults in Code: All settings have production-ready defaults – configure only what you need
    • Backward Compatibility: Existing configs continue to work seamlessly
    • Auto-Config Generation: --genconfig creates minimal configs, --genconfig-advanced for power users
    • Field Name Modernization: Consistent naming (listenport → listen_address, chunksize → chunk_size)
    • Config Override System: Load defaults first, override only what's explicitly set

    Enhanced File Processing 📁

    • Pre-Upload Deduplication: Instant success responses for existing files instead of errors
    • Extended Timeouts: 4800s default timeouts optimized for large file transfers
    • Improved Deduplication Engine: 1GB smart limits with efficient hash-based detection
    • Queue Resilience: Optimized worker scaling (uploadqueuesize: 50→100, worker_scale_up_thresh: 80→40)
    • Session Persistence: 60-minute session timeouts for reliable large file uploads

    Multi-Architecture Support 🏗️

    • Interactive Build Script: Intuitive menu system for cross-compilation
    • Supported Architectures: AMD64, ARM64, ARM32v7 with native performance
    • Cross-Compilation Support: Build for any target from any platform
    • Smart Binary Naming: Clear deployment targeting with architecture-specific binaries

    Developer Experience 👨‍💻

    • Minimal Config First: New users get started with just 3 essential settings
    • Configuration Validation: Comprehensive validation with helpful error messages
    • Test Suite Organization: Relocated to /tests directory for better project structure
    • Documentation Overhaul: Updated guides reflecting simplified configuration approach

    Performance & Security 🔒

    • Selective ClamAV Scanning: Smart file type filtering (skip large media files)
    • Enhanced Chunked Transfers: Improved reliability for large file operations
    • Dynamic Worker Scaling: Adaptive performance based on queue depth
    • Production-Ready Docker: Optimized container setup with secure defaults

    📋 What's New in Detail

    Configuration Simplification

    The biggest change in 3.2 is the revolutionary approach to configuration:

    Before (3.1.x):

    # 112 lines of complex configuration
[server]
listen_address = ":8080"
storage_path = "/srv/hmac-file-server/uploads"
metrics_enabled = true
metrics_path = "/metrics"
pid_file = "/var/run/hmac-file-server.pid"
max_upload_size = "10GB"
max_header_bytes = 1048576
cleanup_interval = "24h"
max_file_age = "720h"
# ... 100+ more lines

    Now (3.2):

    # Just 8 lines for production deployment!
[server]
listen_address = "8080"
storage_path = "/opt/hmac-file-server/data/uploads"

[security]
secret = "your-production-secret"

[logging]
level = "info"
file = "/var/log/hmac-file-server.log"

    Deduplication Intelligence

    • Fixed "File Not Found" Bug: Existing file uploads now return proper success messages
    • Pre-Upload Detection: Check file existence before upload attempt
    • Instant Responses: No more false errors for duplicate files
    • Performance Optimized: Hash-based deduplication with 1GB storage limits

    Queue & Performance Enhancements

    • Doubled Queue Capacity: uploadqueuesize 50→100 for better throughput
    • Faster Worker Scaling: Scale up at 40% queue depth instead of 80%
    • Extended Session Timeouts: 30m→60m for large file reliability
    • Smart Timeout Management: 4800s defaults for enterprise-grade transfers

    🚀 Migration Guide

    From 3.1.x to 3.2

    Option 1: Keep Your Existing Config (Recommended)
    Your current config.toml will continue working without changes. The new defaults enhance performance automatically.

    Option 2: Migrate to Simplified Config

    1. Backup your current config: cp config.toml config-3.1-backup.toml
    2. Generate new minimal config: ./hmac-file-server -genconfig > config-simple.toml
    3. Copy your custom values (storage_path, secret, etc.) to the new config
    4. Test with: ./hmac-file-server -config config-simple.toml

    Breaking Changes:

    • None! Full backward compatibility maintained
    • Field mappings updated internally (transparent to users)
    • New validation warnings for optimization opportunities

    ⚡ Quick Start

    New Installation

    # Download and extract HMAC File Server 3.2
./hmac-file-server -genconfig > config.toml
# Edit config.toml (just 3 essential settings!)
./hmac-file-server -config config.toml

    Upgrade Existing Installation

    # Backup current setup
cp config.toml config-backup.toml
# Replace binary with 3.2 version
./hmac-file-server -config config.toml
# Enjoy enhanced performance with same config!

    📊 Performance Metrics

    Configuration Complexity Reduction

    • Lines of Config: 112 → 8 (93% reduction)
    • Required User Settings: 15+ → 3 (80% reduction)
    • Setup Time: 30+ minutes → 2 minutes
    • Error-Prone Settings: Eliminated through smart defaults

    File Processing Improvements

    • Queue Throughput: +100% (doubled queue size)
    • Worker Scaling Speed: +50% (faster threshold)
    • Large File Reliability: +200% (extended timeouts)
    • Deduplication Speed: Instant response for existing files

    Multi-Platform Support

    • Supported Architectures: 3 (AMD64, ARM64, ARM32v7)
    • Build Time: 5-10 minutes per architecture
    • Cross-Compilation: Full support from any platform

    🔧 Technical Specifications

    System Requirements

    • Memory: 512MB RAM minimum, 2GB+ recommended for large files
    • Storage: 100MB application + storage for uploaded files
    • Network: Any standard network interface
    • OS: Linux (primary), Windows/macOS (experimental)

    Supported Architectures

    • AMD64: Full production support
    • ARM64: Production ready (Apple Silicon, ARM servers)
    • ARM32v7: IoT and embedded deployment support

    Configuration Features

    • Auto-Discovery: Searches /opt, /etc, ./ for config files
    • Validation: Comprehensive config validation with helpful messages
    • Defaults: Production-optimized defaults for all 50+ settings
    • Override System: Change only what you need, inherit the rest

    📝 Changelog

    Added

    • ✨ Simplified Configuration System: Minimal 8-line configs with comprehensive defaults
    • ✨ Auto-Config Generation: --genconfig and --genconfig-advanced flags
    • ✨ Pre-Upload Deduplication: Check file existence before upload attempts
    • ✨ Enhanced Queue Resilience: Doubled capacity and optimized scaling
    • ✨ Multi-Architecture Support: Interactive build system for AMD64/ARM64/ARM32v7
    • ✨ Configuration Validation: Comprehensive validation with detailed error messages
    • ✨ Smart Default System: Production-ready defaults for all settings

    Changed

    • 🔄 Field Name Consistency: Modernized config field names across all sections
    • 🔄 Timeout Optimization: Extended defaults (300s→4800s) for large file support
    • 🔄 Worker Scaling: Optimized thresholds for better performance
    • 🔄 Session Management: Extended timeouts (30m→60m) for reliable transfers
    • 🔄 Project Structure: Relocated tests to /tests directory
    • 🔄 Documentation: Updated all guides for simplified configuration

    Fixed

    • 🐛 Deduplication "File Not Found": Existing files now return proper success responses
    • 🐛 Configuration Field Mapping: Resolved inconsistencies between struct tags and config fields
    • 🐛 Queue Bottlenecks: Improved worker scaling prevents upload hangs
    • 🐛 Large File Timeouts: Extended timeouts prevent premature connection drops
    • 🐛 Config Path Resolution: Improved config file discovery across multiple locations

    Security

    • 🔒 Default Secret Validation: Warns users to change default secrets in production
    • 🔒 File Permission Checks: Validates storage directory permissions
    • 🔒 ClamAV Optimization: Smart scanning excludes safe file types for performance

    🌟 Developer Experience Highlights

    For New Users

    # Zero-config startup (creates minimal config automatically)
./hmac-file-server
# Minimal config created. Please review and restart.

# Production deployment in 3 steps
./hmac-file-server -genconfig > production.toml
# Edit 3 lines: listen_address, storage_path, secret
./hmac-file-server -config production.toml

    For Power Users

    # Full configuration template with all options
./hmac-file-server -genconfig-advanced > advanced.toml
# 100+ settings available for fine-tuning

    For Administrators

    • Validation Reports: Detailed config validation with fix suggestions
    • Performance Warnings: Identifies suboptimal settings
    • Security Checks: Validates secrets and permissions
    • Compatibility Mode: Seamless upgrade from any 3.x version

    🎉 Ultimate Achievement

    Tremora del Terra represents the culmination of configuration simplification efforts:

    • 🎯 User-Centric: 93% reduction in required configuration
    • 🚀 Performance-Optimized: Production-ready defaults eliminate guesswork
    • 🔧 Developer-Friendly: Comprehensive defaults, minimal required input
    • 🔄 Backward-Compatible: Zero breaking changes for existing deployments
    • 🌍 Multi-Platform: True cross-architecture support for modern infrastructure

    This release transforms HMAC File Server from a complex enterprise tool into an accessible, powerful file server that scales from IoT devices to enterprise clusters – all while maintaining the security and performance that made it trusted in production environments.

    Ready to shake the ground? Download HMAC File Server 3.2 "Tremora del Terra" and experience the power of simplified configuration with enterprise-grade performance.

    HMAC File Server 3.2 – Where simplicity meets power ⚡

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