Can you explain the concept of automatic resource scaling in a system?

Auto-scaling is the process of dynamically adjusting system resources (e.g., servers, containers) based on current load.

Main ideas:

• Horizontal scaling: adding or removing instances (virtual machines, containers).
• Vertical scaling: increasing resources of existing instances (CPU, RAM).

Auto-scaling is usually implemented through monitoring metrics (CPU load, request count, latency) and rules that trigger resource addition or removal.

Example: if CPU load exceeds 70% for 5 minutes, the system automatically launches a new server instance to distribute the load.

This allows efficient resource use, cost reduction, and stable operation during peak loads.