Deploying workloads on EKS in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Amazon EKS?

Amazon Elastic Kubernetes Service (EKS) is a managed service that makes it easy to run Kubernetes on AWS without needing to install and operate your own Kubernetes control plane.

beginner

What is a Kubernetes pod in EKS?

A pod is the smallest deployable unit in Kubernetes. It represents one or more containers running together on the same host and sharing resources.

beginner

Why do you need worker nodes in EKS?

Worker nodes are EC2 instances that run your containerized applications. They join the EKS cluster and execute the workloads defined in pods.

intermediate

What is a deployment in Kubernetes on EKS?

A deployment manages a set of identical pods, ensuring the desired number of pods are running and updating them without downtime.

intermediate

How do you update an application running on EKS without downtime?

You update the deployment with a new container image version. Kubernetes performs a rolling update, gradually replacing old pods with new ones to avoid downtime.

What does EKS manage for you?

A Your application code

B The Kubernetes control plane

C Your local development environment

D Your database backups

EKS manages the Kubernetes control plane, so you don't have to set it up or maintain it yourself.

Which AWS resource runs your containers in an EKS cluster?

A S3 buckets

B Lambda functions

C CloudFront distributions

D EC2 worker nodes

EC2 worker nodes are the servers that run your container workloads in EKS.

What Kubernetes object ensures a specified number of pods are running?

A Deployment

B ConfigMap

C Service

D Ingress

A Deployment manages the desired number of pods and handles updates.

How does Kubernetes update pods to a new version without downtime?

A Rolling update replacing pods gradually

B Updates pods only when manually restarted

C Pauses the cluster during update

D Deletes all pods and then creates new ones

Kubernetes performs rolling updates to replace pods gradually, ensuring continuous availability.

Which file format is commonly used to define Kubernetes workloads for EKS?

A XML

B JSON

C YAML

D INI

YAML files are commonly used to define Kubernetes objects like pods and deployments.

Explain the process of deploying a containerized application on Amazon EKS.

Think about the steps from cluster setup to running your app.

Describe how Kubernetes manages application updates in EKS to avoid downtime.

Focus on deployment updates and pod lifecycle.