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Note: Labs will not work if you’re using Incognito Mode or blocking 3rd-party cookies

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Lab 2

Build a Kubernetes Application

Novices | ~ 1 hour

Learn about building an application in Kubernetes

How to build container images
Running your application on Kubernetes
Tools to improve your workflow
Kubestr overview

Prerequisites

Read Blog

Building a Kubernetes application

Thomas Keenan • Instructor • Mentor • Contributor

in K10, Data Protection, Kubernetes, Community

Watch Video

Lab 2 Video Overview

Review Slides

Lab 2 Slides

Hands-On Lab #2

Build a Kubernetes Application

Start Lab #2

Ratings and Reviews

4.7

Avg. Rating

200 Ratings

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What's your experience? We'd love to know!

kostyak132654

Posted 2 months ago

how to create pods

how to create pods

Syawall

Posted 2 months ago

Build Kubernetes it's very easy

i like this simple lab

Josue Vargas

Posted 2 months ago

know kubernetes

All is good

fernandocorderot

Posted 3 months ago

Good content

Please add a little more graphic explanation on the processes

schelp

Posted 3 months ago

.

.

samkuonssp

Posted 3 months ago

Great course for new starter

I like it.

Soumava

Posted 3 months ago

Easy Tutorial

Building a Kubernetes application is difficult but this hands-on lab made it very easy to understand and deploy a Kubernetes application

ChrisTong

Posted 3 months ago

Storage Class

NA

TH

Posted 3 months ago

nice to learn process of configuration

nice to learn process of configuration

shankar gopalan

Posted 3 months ago

h

j

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Lab Content

Lab 2: Build a Kubernetes Application

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Lab 2 background

This lab is for those who are new to building applications to run on Kubernetes or want a refresher. It covers:

How to build container images
How to run your application directly and locally on Kubernetes
Tools you can use to improve your workflow
How to manage manifests for deployment.
Kubestr, an open source collection of tools to discover, validate and evaluate your Kubernetes storage options.

Is there pre-work for the lab?

Yes. Be sure to complete reading and studying this blog, the video description of the work to be performed during the lab, and the accompanying slides.

What is the structure of the lab?

The lab consists of two sections, both of which are approximately 40 minutes long. Your time may vary, depending on how quickly you pass either section.

Section 1 — Applications Background

This section will cover background topics and terminology for the relevance and use of applications in the Kubernetes world. Each topic will provide some review material on screen first, then pose a challenge question. You must answer the question correctly to proceed to the next section. You’ll learn:

The what how and why of container images
How containers relate to applications
Stateless applications
- Short term apps that do not retain data regarding a transaction - (e.g. print services, microservices)
Stateful applications
- Applications that typically use a database (e.g. MySQL) and process a read/write and thus retain information regarding each transaction involved
Options for running applications locally/remotely/other
Tools to help you build an application
What’s involved in managing manifests

Section 2 — Hands-on Commands - Build an application

This section will cover Kubernetes keyboard commands needed to set up and scale an application in Kubernetes. Specific commands covered include:

Discovering K8s storage
- Kubectl get storage class
Choosing a data service- MySql (stateful data services and volume focus)
- Applying use case (PetClinic) for MySql
Installing the app
Exploring the app
Using it as a service to expose the app
Running multiple instances of the app
Scaling your app
Performing a rolling update
Adding data
Exploring persistent volume/ volume claim

In the more advanced section of the hands-on portion, you’ll learn how to install Kubestr, an open source collection of tools to discover, validate and evaluate your Kubernetes storage options. Kubestr can:

Identify various storage options present in a cluster
Validate if storage options are configured correctly
Evaluate storage using common benchmarking tools such as FIO

Here’s a summary of the steps we’ll take as we install Kubester during the lab:

1) Install Kubestr

Ensure that the Kubernetes context is set and the cluster is accessible through your terminal. (Does kubectl work?)
Download the latest release here.
Unpack the tool and make it an executable chmod +x kubestr.

2) Discover available storage options:

Run ./kubestr

3) Run an FIO test:

Run ./kubestr fio -s <storage class>
Additional options like —size and —fiofile can be specified.
For more information visit our fio page.

4) Check a CSI drivers snapshot and restore capabilities:

Run ./kubestr csicheck -s <storage class> -v <volume snapshot class>

5) Install another storage class and use Kubestr to compare the two (GCP storage classes).

6) Link to the Application Transformation lab later to produce a sequence/template.

How do I access Lab 2?

Go to Learning.Kasten.io to start your learning journey! Remember: you can pause during the lab and return to the same spot without losing your place.

All the best, enjoy!