Helm

Question 1

What is Helm?

Answer 1

A templating tool for generating Kubernetes manifests

Question 2

What does Helm do?

Answer 2

Makes generating Kubernetes manifests easier

Question 3

What is a Helm chart made of?

Answer 3

specific values pertinent to your app used for generating your app’s deployment manifest

Question 4

What should you look for in Helm?

Answer 4

chart.yml, and values.yml

Question 5

What is chart.yaml

Answer 5

Chart.yaml contains metadata about the chart itself: its name, the chart version, a description, and similar details. In Helm 3 it can contain dependencies as well

The chart.yaml is the template for your generating your manifest

Question 6

What is values.yaml?

Answer 6

Settings for chart file, default values go in this file inside helm chart. Values are the configs for the chars values.yaml is default baseline values file

values.yaml contains configuration settings for the chart. This typically includes things like the image repository to pull from, where you want data to be stored, and how to make the service accessible.

Question 7

How is Helm test file named?

Answer 7

Not used in our org

Question 8

What to know about Helm templates?

Answer 8

Files under templates directory are treated as dynmaic yamls to avoid code duplication

Are treated as templates for different manifests

Question 9

What can Helm do?

Answer 9

Helm manages installation, removal and can provide status info

Templating tool for generating manifests. To make creating manifests easier.

Question 10

How are Helm templates referred to?

Answer 10

charts (deployable units for kubernetes bound apps)

Question 11

How to use custom values?

Answer 11

By using values.yaml file or inside your render chart job you can provide a variable ‘EXTRA_HELM_OPTIONS’ and provide those custom values

Question 12

Where does the “application” manifest get deployed/committed to?

Answer 12

GitOps repo
test-cicd
prod-cicd

Question 13

4 different objects in the deployment manifest?

Answer 13

1. Deployment
2. Replica sets
3. Pod template
4. Containers

Question 14

Where are Helm charts saved?

Answer 14

Either in your app’s repo or in artifactory

Question 15

What is the command to see charts?

Answer 15

To search a public hub:
helm search hub

searches the Artifact Hub, which lists helm charts from dozens of different repositories.

At your org, you’d want to configure your artifact hub to be more specific. Add artifactory to your helm config.
helm repo add <org’s url for artifacts>