nomad:tldr:5fd42

The command "nomad job plan ${filename-nomad}" is used to create a job plan in Nomad, a distributed job scheduler developed by HashiCorp.

Here is a breakdown of the command:

• "nomad" is the command-line interface (CLI) that allows you to interact with Nomad.
• "job" is a subcommand in Nomad CLI used to work with job files.
• "plan" is a flag in the "job" subcommand, specifying that you want to create a job plan.
• "${filename-nomad}" is a parameter or variable that represents the name of your job file, usually ending with the ".nomad" extension.

When you run this command, Nomad will read the specified job file and generate a job plan. A job plan is a preview of the changes that would be made to the cluster when the job is submitted. It helps you identify any potential issues or conflicts before actually running the job.