Helm Intro

Question 1

What is Helm in Kubernetes

Answer 1

Helm is a package manager for Kubernetes that helps you install upgrade roll back and uninstall an application as one unit instead of managing many separate objects by hand

Question 2

Why can deploying an application directly with raw Kubernetes YAML become tedious

Answer 2

A real application may need many objects such as Deployments Services Secrets PersistentVolumes and PersistentVolumeClaims and each object may require its own YAML file and manual updates

Question 3

What problem does Helm solve compared with applying many YAML files manually

Answer 3

Helm lets you treat the full application as a single package so you can manage the whole app with one command instead of handling each object separately

Question 4

What does Helm understand that Kubernetes by itself does not track well

Answer 4

Helm understands that many Kubernetes objects belong to one application package while Kubernetes mainly manages each object individually

Question 5

Why is Helm often called a package manager for Kubernetes

Answer 5

It packages all the resources that make up an app and lets you install and manage that app in a way similar to installing software packages

Question 6

What is a Helm chart

Answer 6

A Helm chart is the package that contains the templates and default settings needed to deploy an application on Kubernetes

Question 7

What is the purpose of the values.yaml file in Helm

Answer 7

The values file is the single place where you customize settings for the application such as storage size passwords and application specific options

Question 8

How does Helm make application installation easier

Answer 8

Helm can install a complete application with a single command and automatically create all the Kubernetes objects required by that app

Question 9

How does Helm help when upgrading an application

Answer 9

Helm can upgrade the application with a single command and it figures out which Kubernetes objects need to change

Question 10

How does Helm help with rollback

Answer 10

Helm tracks revisions so you can roll back to a previous release if an upgrade causes problems

Question 11

How does Helm help with uninstalling an application

Answer 11

Helm keeps track of the objects that belong to a release so it can remove the whole application with one uninstall command

Question 12

What is a Helm release

Answer 12

A Helm release is a running installed instance of a chart in your cluster

Question 13

Why is Helm useful for applications like WordPress

Answer 13

A WordPress deployment often needs many related resources and Helm groups them into one manageable application package with centralized configuration

Question 14

What are the two big roles Helm plays according to the lecture

Answer 14

Helm acts as both a package manager for installing applications and a release manager for upgrading rolling back and uninstalling them

Question 15

What is the key mindset change Helm introduces for Kubernetes apps

Answer 15

Helm lets you manage Kubernetes apps as complete apps rather than as a loose collection of individual objects