nomad/website/source/docs/job-specification/env.html.md

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docs	env Stanza - Job Specification	docs-job-specification-env	The "env" stanza configures a list of environment variables to populate the task's environment before starting.

env Stanza

Placement	job -> group -> task -> **env**

The env stanza configures a list of environment variables to populate the task's environment before starting.

job "docs" {
  group "example" {
    task "server" {
      env {
        my-key = "my-value"
      }
    }
  }
}

env Parameters

The "parameters" for the env stanza can be any key-value. The keys and values are both of type string, but they can be specified as other types. They will automatically be converted to strings.

env Examples

The following examples only show the env stanzas. Remember that the env stanza is only valid in the placements listed above.

Coercion

This example shows the different ways to specify key-value pairs. Internally, these values will be stored as their string representation. No type information is preserved.

env {
  key = "true"
  key = true

  "key" = true

  key = 1.4
  key = "1.4"
}

Interpolation

This example shows using Nomad interpolation to populate environment variables.

env {
  NODE_CLASS = "${nomad.class}"
}