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Exam AZ-400 topic 8 question 4 discussion

Actual exam question from Microsoft's AZ-400

Question #: 4
Topic #: 8

DRAG DROP -
You provision an Azure Kubernetes Service (AKS) cluster that has RBAC enabled. You have a Helm chart for a client application.
You need to configure Helm and Tiller on the cluster and install the chart.
Which three commands should you recommend be run in sequence? To answer, move the appropriate commands from the list of commands to the answer area and arrange them in the correct order.
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Suggested Answer:

Step 1: Kubectl create -
You can add a service account to Tiller using the --service-account <NAME> flag while you're configuring Helm (step 2 below). As a prerequisite, you'll have to create a role binding which specifies a role and a service account name that have been set up in advance.
Example: Service account with cluster-admin role
$ kubectl create -f rbac-config.yaml
serviceaccount "tiller" created
clusterrolebinding "tiller" created
$ helm init --service-account tiller

Step 2: helm init -
To deploy a basic Tiller into an AKS cluster, use the helm init command.

Step 3: helm install -
To install charts with Helm, use the helm install command and specify the name of the chart to install.
Reference:
https://docs.microsoft.com/en-us/azure/aks/kubernetes-helm
https://docs.helm.sh/using_helm/#tiller-namespaces-and-rbac

by JohnD2020 at March 31, 2020, 3:02 p.m.

Comments

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bnair

Highly Voted 4 years, 6 months ago

kubectl apply -> create tiller service and cluster-admin role binding helm init -> deploy basic tiller to aks cluster helm install -> install helm charts

upvoted 70 times

RealRaymond

1 year, 6 months ago

There is a typo, it should be kubectl create.

upvoted 4 times

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JohnD2020

Highly Voted 4 years, 7 months ago

I think you first need to install it before you can init(ialize) it. So it would be kubectl install init

upvoted 11 times

hubeau

4 years, 7 months ago

Init before install: https://docs.microsoft.com/en-us/azure/aks/kubernetes-helm#install-an-application-with-helm-v2

upvoted 17 times

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noussa

3 years, 6 months ago

https://v2.helm.sh/docs/using_helm/ This can help u understand as I was confused In the beginning: init helm and install tiller but the confusing part is the use of the helm keyword with both steps :D

upvoted 4 times

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Fred64

4 years, 6 months ago

init install Tiller. You need Tiller to instal chart

upvoted 3 times

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vsvaid

Most Recent 11 months ago

Correct answer

upvoted 1 times

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varinder82

11 months, 4 weeks ago

Final Anser after reading all below comments: kubectl apply -f rbac-config.yaml helm init --service-account tiller helm install my-chart-dir --name my-chart

upvoted 2 times

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CirusD

1 year, 1 month ago

kubectl apply -f rbac-config.yaml helm init --service-account tiller helm install my-chart-dir --name my-chart

upvoted 1 times

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renzoku

1 year, 5 months ago

If we are using Helm version 3, Tiller wouldn't longer necessary Answer is correct for previous Helm version

upvoted 4 times

KumaTed

1 year, 5 months ago

yes, the question is out of date

upvoted 2 times

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syu31svc

2 years, 3 months ago

Answer is correct https://v2.helm.sh/docs/helm/ "To begin working with Helm, run the ‘helm init’ command" https://helm.sh/docs/helm/helm_install/ "helm install install a chart" https://docs.microsoft.com/en-us/azure/aks/kubernetes-helm "This article assumes that you have an existing AKS cluster."

upvoted 2 times

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rdemontis

2 years, 8 months ago

correct answer https://github.com/venezia/k8s-helm/blob/master/docs/service_accounts.md

upvoted 4 times

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Mev4953

2 years, 9 months ago

$ Kubectl $ helm install $ helm init https://helm.sh/docs/intro/quickstart/

upvoted 3 times

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poplovic

3 years, 2 months ago

https://github.com/venezia/k8s-helm/blob/master/docs/service_accounts.md 1. create the service account and binding $kubectl create -f rolebinding-tiller.yaml 2. securely install Tiller (the helm server side component). $ helm init --service-account tiller --tiller-namespace tiller-world 3. install the chart (package) $ helm install nginx --tiller-namespace tiller-world --namespace tiller-world

upvoted 5 times

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Indran

3 years, 6 months ago

https://docs.bitnami.com/tutorials/create-your-first-helm-chart/ kubectl install init

upvoted 4 times

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Ajithct

3 years, 12 months ago

kubectl apply helm init helm instal

upvoted 7 times

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