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Setting an Affinity for a Nomad Job in a Cluster

There are times when you want your Nomad jobs to be sent to specific locations. For instance, you may want a percentage of the jobs to be run in a separate datacenter. In this lab, you are tasked with creating a job file and adjusting it so that it prefers to be in a different datacenter. You have been provided with a Nomad cluster that has two client nodes. The tasks you will perform in this hands-on lab will be performed on the provided Nomad server. The Nomad server has been configured with one server agent and two client agents. Docker has been installed so that Nomad is ready to run jobs.

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Path Info

Level
Clock icon Advanced
Duration
Clock icon 30m
Published
Clock icon Nov 06, 2020

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Table of Contents

  1. Challenge

    Log in to the Provided Nomad Server

    Log into the server as "cloud_user" with the provided password to perform the tasks.

  2. Challenge

    Create a Default Example Job Called dc2-test.nomad, with an Affinity for dc2

    1. Using the appropriate commands and the Nomad CLI, initialize a job file called dc2-test.nomad.

    2. Change the job so that it will have an affinity of 100% for the node in dc2, and its job name should show as dc2-test when run.

  3. Challenge

    Submit the Job to Run in the Cluster

    You should submit the job to run in the provided cluster. The job should run without errors.

  4. Challenge

    Check if the Job is Running in the Correct Node

    The job should run on the node that is in the dc2 datacenter. You must check which node is running the job and see whether it is in dc1 or dc2.

A Cloud Guru - Labs - Setting an Affinity for a Nomad Job in a Cluster
Author
A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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We will provide the credentials and environment necessary for you to practice right within your browser.

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Follow along with the author’s guided walkthrough and build something new in your provided environment!

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