Container orchestration in production in Docker - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is container orchestration?

Container orchestration is the automated process of managing, scheduling, and coordinating multiple containers to work together in production environments.

beginner

Name a popular container orchestration tool used in production.

Kubernetes is a widely used container orchestration tool that helps manage containerized applications at scale.

beginner

Why is container orchestration important in production?

It helps keep applications running smoothly by automatically handling container deployment, scaling, and recovery from failures.

beginner

What does 'scaling' mean in container orchestration?

Scaling means increasing or decreasing the number of container instances to handle more or less workload automatically.

intermediate

How does container orchestration improve fault tolerance?

It detects failed containers and replaces them automatically to keep the application available without manual intervention.

Which tool is primarily used for container orchestration in production?

A Kubernetes

B Git

C Docker Compose

D Jenkins

Kubernetes is designed for container orchestration, while Docker Compose is mainly for local development setups.

What does container orchestration automate?

A User interface design

B Writing application code

C Database backups

D Container deployment, scaling, and recovery

Orchestration automates managing containers, including deployment, scaling, and handling failures.

In container orchestration, what is 'scaling'?

A Changing container size

B Updating container images

C Adjusting the number of container instances

D Stopping all containers

Scaling means changing how many container copies run to meet workload demands.

How does orchestration help with fault tolerance?

A By backing up data manually

B By automatically restarting failed containers

C By increasing CPU speed

D By disabling containers

Orchestration tools detect failures and restart containers to keep services running.

Which of these is NOT a feature of container orchestration?

A Manual code debugging

B Automatic container scheduling

C Load balancing

D Health monitoring

Manual code debugging is not part of orchestration; orchestration focuses on managing containers.

Explain what container orchestration is and why it is essential in production environments.

Think about how many containers run together and need coordination.

Describe how container orchestration tools help maintain application uptime during failures.

Focus on fault tolerance and recovery.