Resource Manager Tool

Overview

The Resource Manager is a powerful system administration tool designed to monitor, manage, and optimize system resources across different operating systems. It provides comprehensive resource monitoring, limit setting, and optimization capabilities for system administrators.

Features

Resource Monitoring

• Real-time CPU, memory, and disk usage monitoring
• Cross-platform support (Linux, macOS)
• Detailed metrics collection and storage
• Continuous monitoring with configurable intervals
• Historical data tracking

Resource Management

• CPU usage limits using cgroups (Linux)
• Memory usage limits
• Disk usage monitoring and alerts
• Service-specific resource optimization
• Automatic resource cleanup

Reporting

• HTML reports with interactive charts
• JSON format for programmatic analysis
• Daily, weekly, and monthly report generation
• Customizable report formats
• Historical trend analysis

Service Optimization

• MySQL optimization
• Nginx configuration tuning
• Apache performance tuning
• Redis resource management
• Cross-platform service management

Installation

Prerequisites

• Bash shell
• Basic system utilities (top, free, df)
• yq (optional, for YAML configuration)
• Chart.js (for HTML reports)

Installation Steps

1. Clone the repository:

   git clone <repository-url>
   cd admin-tools
   

2. Make the script executable:

   chmod +x resource-manager.sh
   

3. Install dependencies:

   • For Linux:

     sudo apt-get install sysstat  # For Debian/Ubuntu
     sudo yum install sysstat      # For RHEL/CentOS
     

   • For macOS:

     brew install sysstat
     

4. Create configuration directory:

   mkdir -p ~/.config/resource-manager
   

5. Download the script from the Lambda Softworks Customer Portal:

   • Log in to your Lambda Softworks Customer Portal account
   • Navigate to the Files section
   • Download the resource-manager.sh script

Usage

Basic Commands

1. Check current resource usage:

   ./resource-manager.sh --status
   

2. Set resource limits:

   ./resource-manager.sh --limit-cpu 80 --limit-memory 90
   

3. Generate a daily report:

   ./resource-manager.sh --report daily
   

4. Optimize specific services:

   ./resource-manager.sh --optimize --target-services mysql,nginx
   

5. Monitor resources continuously:

   ./resource-manager.sh --monitor --interval 30 --duration 7200
   

Command Line Options

• --status: Show current resource usage
• --limit-cpu N: Set CPU usage limit to N%
• --limit-memory N: Set memory usage limit to N%
• --limit-disk N: Set disk usage limit to N%
• --report [daily|weekly|monthly]: Generate resource usage report
• --format [html|json]: Report format (default: html)
• --optimize: Apply recommended resource optimizations
• --target-services S1,S2,...: Target specific services for optimization
• --monitor: Monitor resources continuously
• --interval N: Monitoring interval in seconds (default: 60)
• --duration N: Monitoring duration in seconds (default: 3600)
• --config FILE: Use custom configuration file
• --help: Show help message

Configuration

Configuration File

The tool uses a YAML configuration file located at ~/.config/resource-manager/config.yml. Example configuration:

# Default thresholds
cpu_warning: 80
cpu_critical: 90
memory_warning: 85
memory_critical: 95
disk_warning: 85
disk_critical: 95

# Monitoring settings
default_interval: 60
default_duration: 3600

# Service configurations
services:
  mysql:
    max_connections: 100
    buffer_pool_size: 1G
  nginx:
    worker_processes: auto
    worker_connections: 1024

Log Files

• Main log: ~/.local/log/resource-manager.log
• Reports: ~/.local/share/resource-manager/reports/
• Metrics: ~/.local/share/resource-manager/metrics/

Cross-Platform Compatibility

Linux Support

• RHEL/CentOS
• Ubuntu/Debian
• Other Linux distributions with systemd

macOS Support

• macOS 10.15 and later
• Homebrew package management
• Native system monitoring

Examples

Basic Usage

# Check system status
./resource-manager.sh --status

# Set resource limits
./resource-manager.sh --limit-cpu 80 --limit-memory 90

# Generate daily report
./resource-manager.sh --report daily --format html

Advanced Usage

# Monitor with custom interval
./resource-manager.sh --monitor --interval 30 --duration 7200

# Optimize multiple services
./resource-manager.sh --optimize --target-services mysql,nginx,redis

# Generate JSON report for analysis
./resource-manager.sh --report weekly --format json

Troubleshooting

Common Issues

1. Permission Errors

   • Ensure the script is run with sudo
   • Check directory permissions
   • Verify user has necessary privileges

2. Resource Issues

   • Verify resource limits
   • Check process permissions
   • Review system resources

3. Report Generation Issues

   • Check log directory permissions
   • Verify HTML template access
   • Check disk space

Debug Mode

To enable debug logging:

sudo DEBUG=1 ./resource-manager.sh [OPTIONS]