We will cover the high‑impact topics:

1. Resource Limits (CPU & Memory)
2. Image Lifecycle & Registry Flow
3. Entrypoint vs CMD
4. Container Debugging & Process Model

1. Resource Limits (CPU & Memory)

1.1 What Problem Do Resource Limits Solve?

Containers share the host kernel.

Without limits, one container can consume:

• All memory
• All CPU

This can crash or degrade the entire system.

Resource limits enforce fairness and protection.

1.2 Mental Model

Host Machine

├── Container A

├── Container B

└── Container C