Linux-Server-Management-Toolkit/docs/DEVELOPMENT_LOG.md

Server Toolkit Development Log

Purpose: Comprehensive tracking of ALL development work, changes, and decisions Last Updated: 2025-12-03

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December 2-3, 2025: PHP Configuration Optimizer (Complete)

Summary

Built comprehensive PHP configuration optimization system with 7 phases of development.

Components Created

1. lib/php-detector.sh (428 lines, 17 functions)

Purpose: Detect and locate all PHP configuration files across control panels Created: December 2, 2025

Functions:

• detect_php_version_for_domain() - Detect PHP version per domain
• detect_php_binary() - Find PHP binary path
• find_php_ini() - Locate php.ini files (4 priority levels)
• find_fpm_pool_config() - Find PHP-FPM pool configs
• find_all_php_configs() - Comprehensive config discovery
• get_opcache_config_file() - Locate OPcache configs
• 11 additional detection functions

Control Panel Support:

• cPanel (ea-php, MultiPHP)
• InterWorx (SiteWorx)
• Plesk
• Standalone Apache

2. lib/php-analyzer.sh (940 lines, 14 functions)

Purpose: Analyze PHP performance metrics and generate recommendations Created: December 2, 2025

Functions:

• get_opcache_stats() - Extract OPcache statistics
• calculate_opcache_hit_rate() - Calculate hit percentage
• check_max_children_errors() - Scan 7-day error logs
• analyze_php_memory_usage() - Memory consumption analysis
• get_process_manager_stats() - PHP-FPM pm stats
• recommend_max_children() - Calculate optimal max_children
• recommend_memory_limit() - Calculate optimal memory_limit
• recommend_opcache_settings() - OPcache tuning recommendations
• 6 additional analysis functions

Key Features:

• 7-day historical error log analysis
• OPcache hit rate calculation with division-by-zero protection
• Intelligent max_children recommendations based on actual errors
• Memory limit optimization based on real usage patterns

3. lib/php-config-manager.sh (509 lines, 14 functions)

Purpose: Backup, restore, and modify PHP configurations safely Created: December 2, 2025

Functions:

• backup_user_php_configs() - Create timestamped backups with metadata
• restore_from_backup() - Restore from backup with verification
• list_backups() - Display all available backups
• delete_backup() - Remove backup directories
• modify_fpm_pool_setting() - Modify PHP-FPM pool settings via sed
• modify_php_ini_setting() - Modify php.ini settings
• apply_fpm_pool_settings() - Batch apply multiple settings
• restart_php_fpm() - Restart PHP-FPM service
• reload_php_fpm() - Graceful reload (zero downtime)
• verify_php_fpm_running() - Verify service status
• 4 additional configuration functions

Backup System:

• Location: /root/server-toolkit/backups/php/
• Format: Timestamped directories with metadata
• Preserves directory structure and permissions
• Tracks all backed up files with original paths

4. modules/performance/php-optimizer.sh (1,083 lines)

Purpose: Interactive menu-driven PHP optimization tool Created: December 2, 2025

Menu Options:

1. Analyze All Domains - Comprehensive server-wide analysis
2. Analyze Single Domain - Per-domain analysis
3. Show OPcache Statistics - OPcache performance metrics
4. Optimize Domain - Main action menu with apply workflow
5. View PHP Error Logs - Error log viewer with filtering
6. PHP Version Summary - Version distribution report
7. Find Configuration Files - Config file discovery tool
8. Backup Configurations (b) - Manual backup creation
9. Restore from Backup (r) - Rollback capability
10. Quit

Option 4 Workflow (Optimize Domain):

1. Select domain from list
2. Display current configuration
3. Show recommendations with explanations
4. Ask: "Apply these recommendations? (y/n)"
5. If yes: Create auto-backup (timestamped)
6. Apply changes to PHP-FPM pool config
7. Ask: "Restart PHP-FPM now? (y/n)"
8. If yes: Gracefully reload PHP-FPM (zero downtime)
9. Verify service is running
10. Display backup location for rollback

Safety Features:

• User confirmation required for ALL changes
• Auto-backup BEFORE any modifications
• Graceful reload (not restart) for zero downtime
• Verification that service is running after reload
• Clear rollback instructions with backup location
• No automatic changes without explicit approval

Integration (December 3, 2025)

Main Menu Integration

File: launcher.sh Location: Performance & Diagnostics → Option 9

Menu Path:

Main Menu
  └─ (4) Performance & Diagnostics
      └─ (9) PHP Configuration Optimizer

Changes Made:

• Added menu option 9: "PHP Configuration Optimizer"
• Updated handler function to call php-optimizer.sh
• Shifted existing options 9-11 to 10-12
• Validated syntax with bash -n

Git Commits

1. Phase 1: Create lib/php-detector.sh (detection functions)
2. Phase 2: Create lib/php-analyzer.sh (analysis engine)
3. Phase 3: Create modules/performance/php-optimizer.sh (main script)
4. Phase 4: Implement backup/restore system with PHP-FPM restart
5. Phase 5 & 6: Implement apply/action menu with auto-backup and PHP-FPM restart
6. Phase 7: Integrate PHP Configuration Optimizer into main menu

Note: Removed AI attribution markers from commits per user instructions.

Documentation Created

1. PHP_OPTIMIZER_PLAN.md - Initial planning document
2. PHP_METRICS_COMPREHENSIVE.md - Comprehensive metrics tracking
3. PHP_CONFIG_LOCATIONS_COMPLETE.md - Config file locations by panel
4. SESSION_SUMMARY.md - Session work summary
5. PHP_OPTIMIZER_COMPLETE.md - Completion documentation
6. DEVELOPMENT_LOG.md - This file (NEW!)

Testing Status

• ✅ Syntax validation complete (all files pass bash -n)
• ✅ Logic validation complete (division-by-zero protection, error handling)
• ✅ Path resolution verified
• ✅ Menu integration tested
• ⏳ Pending: Live server testing with real domains

Metrics Tracked

Per-Domain PHP Settings:

• pm.max_children - FPM process limit
• pm.start_servers - Initial processes
• pm.min_spare_servers - Minimum idle processes
• pm.max_spare_servers - Maximum idle processes
• pm.max_requests - Process recycling threshold
• memory_limit - PHP script memory cap
• upload_max_filesize - Upload size limit
• post_max_size - POST data limit
• max_execution_time - Script timeout
• max_input_time - Input parsing timeout

OPcache Settings:

• opcache.memory_consumption - OPcache memory allocation
• opcache.interned_strings_buffer - String storage buffer
• opcache.max_accelerated_files - Cached file limit
• opcache.enable - OPcache on/off
• opcache.revalidate_freq - Cache validation frequency

Performance Metrics:

• OPcache hit rate (hits / (hits + misses))
• max_children error frequency (7-day history)
• Active PHP-FPM processes
• Memory consumption per process
• Process manager type (static/dynamic/ondemand)

File Statistics

Total Lines of Code: 2,960 lines

• lib/php-detector.sh: 428 lines
• lib/php-analyzer.sh: 940 lines
• lib/php-config-manager.sh: 509 lines
• modules/performance/php-optimizer.sh: 1,083 lines

Total Functions: 45 exported functions

• php-detector.sh: 17 functions
• php-analyzer.sh: 14 functions
• php-config-manager.sh: 14 functions

Future Enhancements (Planned)

1. MySQL Config Optimizer - Similar system for MySQL/MariaDB tuning
2. Redis/Memcached Setup - Object caching setup scripts
3. Apache/Nginx Optimizer - Web server tuning (revisit later)

Not Planned:

• CDN integration (user declined)
• SSL/TLS optimizer (user declined)

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November 21-30, 2025: (Previous Work - Need to Fill In)

TODO: Document all work from November 21-30 including:

• enable-cphulk.sh bug fixes (6 bugs fixed)
• live-attack-monitor color code fixes
• SCRIPT_DIR path calculation fixes
• bot-analyzer optimizations
• Any other modules created or modified

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November 20, 2025: (Last Documented Work)

TODO: Pull from previous documentation what was done on this date.

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Development Guidelines

Git Commit Messages

• NO AI attribution markers (per user instructions as of Dec 3, 2025)
• Remove "🤖 Generated with Claude Code"
• Remove "Co-Authored-By: Claude noreply@anthropic.com"
• Use clear, descriptive commit messages
• Include technical details and impact

Documentation Standards

• Update DEVELOPMENT_LOG.md with EVERY change
• Update README.md for user-facing features
• Create detailed docs/ files for complex features
• Track file statistics (lines, functions)
• Document all git commits
• Record testing status

Code Standards

• Follow CODING_GUIDELINES.md
• Syntax validation with bash -n before commit
• Export all library functions
• Proper error handling and user confirmations
• No automatic changes without user approval
• Graceful service reloads (not restarts)

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Last Updated: 2025-12-03 21:45 UTC Next Update: After next development session