Container Management Skill

This skill helps manage development and operations containers with common administrative tasks.

Capabilities

1. System Information & Monitoring

• Check system resource usage (CPU, memory, disk)
• View system information and kernel version
• Monitor running processes
• Check network configuration and connectivity

2. Process Management

• List and manage running processes
• Start/stop/restart services
• Monitor process resource usage
• Check service status

3. Docker Container Management

• List running containers
• Start/stop/restart containers
• View container logs
• Inspect container configuration
• Check container resource usage
• Execute commands in containers

4. Environment Configuration

• Manage environment variables
• View and edit configuration files
• Set up shell configurations
• Manage SSH keys and credentials

5. Log Management

• View system logs
• Analyze application logs
• Search and filter log files
• Archive and rotate logs

6. Package Management

• Install/update/remove packages
• Check installed packages
• Update package repositories
• Manage dependencies

7. Network Operations

• Check network interfaces
• Test connectivity (ping, curl)
• View open ports and connections
• Configure firewall rules

8. Disk & Storage

• Check disk usage and free space
• Manage files and directories
• Clean up temporary files
• Backup and restore data

9. Security & Permissions

• Manage file permissions
• Check user and group information
• Audit security settings
• Manage access controls

Common Tasks

System Health Check

# CPU and memory usage
top -b -n 1 | head -20

# Disk usage
df -h

# Running processes
ps aux | head -20

Docker Operations

# List containers
docker ps -a

# View container logs
docker logs <container-name>

# Execute command in container
docker exec -it <container-name> /bin/bash

Log Analysis

# View recent system logs
journalctl -n 100

# Search application logs
grep -i "error" /var/log/app.log

Best Practices

1. Always check current status before making changes
2. Create backups before modifying critical configurations
3. Use appropriate permissions and avoid running as root when possible
4. Monitor resource usage regularly
5. Keep logs organized and rotated
6. Document configuration changes
7. Test changes in non-production environments first

Safety Guidelines

• Never delete system files without confirmation
• Always verify commands before execution
• Keep credentials secure and never commit to git
• Use environment variables for sensitive data
• Regularly update and patch the system
• Monitor for unusual activity or resource usage

Version History

• v1.0 (2025-10-24): Initial container management skill