Configuring Tasks for a Nomad Application

30 minutes
  • 4 Learning Objectives

About this Hands-on Lab

In this hands-on lab, you will be provided with a pre-configured Nomad cluster, that is running on a single instance in Developer mode. You will need to create a Nomad job file, and then edit the file, so that the environment variables will be shown in the running allocation once it has been submitted to Nomad.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Log in to the Provided Nomad Server
  1. Log in to the server using the credentials provided.

    Note: The Nomad server has been configured with one server agent and one client agent. Docker has been installed so server is ready to run jobs.

Create a New Nomad Job Called `example.nomad`

This job will be using Docker and redis. You may choose to create the example file with comments included or not included.

Edit the example.nomad job file to add the provided database variables
  1. Edit the example.nomad file and add the following database variables.
    "DB_HOST" = ""
    "DB_USER" = "web"
    "DB_PASS" = "loremipsum"

    Note: These variables are to be set to show inside the running redis docker image, when the job file has been submitted, and the job is running.

Submit the File and Verify the Changes
  1. Connect to the running allocation.
  2. Verify that the environment variables have been set.

Additional Resources

A collegue has asked you how to add environment variables to a running nomad job, and you have agreed to help them.

You will need to create an example Nomad job file, and then edit the file to add the variables.

You will add provided environmment variables for a dababase, to the job file, so that they will show up inside the running allocation as environment variables.

What are Hands-on Labs

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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