🎯 Lab Goal

In this lab, you will explore several ways to configure CPU limits for Docker containers.

You will learn how to:

• Identify CPU-related flags in docker run
• Configure a hard CPU limit using -cpus
• Configure relative CPU allocation using -cpu-shares
• Simulate resource scarcity using -cpuset-cpus
• Use -cpu-period and -cpu-quota
• Observe the effect using docker stats
• Understand Docker CPU throttling behavior

Part 1 — Discover Relevant CPU Flags

Run:

docker run --help | grep CPU

Focus on the following flags:

• -cpu-shares
• -cpus
• -cpuset-cpus
• -cpu-period
• -cpu-quota