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Exam AZ-303 topic 3 question 9 discussion

Actual exam question from Microsoft's AZ-303

Question #: 9
Topic #: 3

You create an Azure Kubernetes Service (AKS) cluster and an Azure Container Registry.
You need to perform continuous deployments of a containerized application to the AKS cluster as soon as the image updates in the registry.
What should you use to perform the deployments?

A. an Azure Automation runbook
B. a kubectl script from a CRON job
C. an Azure Resource Manager template
D. an Azure Pipelines release pipeline

Show Suggested Answer

Suggested Answer: D 🗳️
You can implement a Continuous Deployment pipeline.
Example:

What the pipeline accomplishes :
Stage 1: The code gets pushed in the Github. The Jenkins job gets triggered automatically. The Dockerfile is checked out from Github.
Stage 2: Docker builds an image from the Dockerfile and then the image is tagged with the build number. Additionally, the latest tag is also attached to the image for the containers to use.
Stage 3: We have default deployment and service YAML files stored on the Jenkins server. Jenkins makes a copy of the default YAML files, make the necessary changes according to the build and put them in a separate folder.
Stage 4: kubectl was initially configured at the time of setting up AKS on the Jenkins server. The YAML files are fed to the kubectl util which in turn creates pods and services.
Reference:
https://medium.com/velotio-perspectives/continuous-deployment-with-azure-kubernetes-service-azure-container-registry-jenkins-ca337940151b

by Motorzep at Jan. 6, 2021, 5:20 a.m.

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syu31svc

Highly Voted 3 years, 11 months ago

https://docs.microsoft.com/en-us/azure/devops/pipelines/release/?view=azure-devops Answer is D

upvoted 6 times

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sachinp2305

Most Recent 3 years, 4 months ago

D is correct answer -Appeared in today's exam 29 March 2022

upvoted 1 times

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itvinoth83

3 years, 4 months ago

Appeared in exam on 28-03-2022

upvoted 1 times

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shree178

3 years, 5 months ago

On exam today 19-2-2022.. Passed with 871.

upvoted 2 times

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Mr_RJ

3 years, 7 months ago

Selected Answer: D

correct

upvoted 1 times

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lucascruzm

4 years ago

Correct ans

upvoted 4 times

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hamzeh69

4 years ago

Pass exam, come today in my exam 6/7/2021

upvoted 4 times

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kwaazaar

4 years, 4 months ago

If the k8s application is a cronjob using the 'latest' tag, it will automatically use the latest image on next job creation. Not the solution here, but the trigger in the proposed answer is a source repository, which makes as little sense. Maybe you don't even have the sources for the image.

upvoted 1 times

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oshoparsi

4 years, 5 months ago

https://docs.microsoft.com/en-us/azure/devops/pipelines/apps/cd/deploy-aks?view=azure-devops&tabs=java

upvoted 1 times

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Aghora

4 years, 6 months ago

webhooks is the new technology for pipelines

upvoted 2 times

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Motorzep

4 years, 6 months ago

Why not Answer B? Can this not be done using a CRON job?

upvoted 1 times

Eradain

4 years, 6 months ago

Because in the question it saids "AKS cluster as soon as the image updates in the registry." the CRON job is a syncronous system is not asyincronous like the pipeline.

upvoted 10 times

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TheAzureArchitect

3 years, 8 months ago

The cron task will fire on a schedule, regardless of when the image was updated. We only want to redeploy when the artefact is updated, ADO can do this.

upvoted 1 times

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