github.com/bengesoff/terraform@v0.3.1-0.20141018223233-b25a53629922/website/source/docs/configuration/outputs.html.md (about)

     1  ---
     2  layout: "docs"
     3  page_title: "Configuring Outputs"
     4  sidebar_current: "docs-config-outputs"
     5  ---
     6  
     7  # Output Configuration
     8  
     9  Outputs define values that will be highlighted to the user
    10  when Terraform applies, and can be queried easily using the
    11  [output command](/docs/commands/output.html). Output usage
    12  is covered in more detail in the
    13  [getting started guide](/intro/getting-started/outputs.html).
    14  This page covers configuration syntax for outputs.
    15  
    16  Terraform knows a lot about the infrastructure it manages.
    17  Most resources have a handful or even a dozen or more attributes
    18  associated with it. Outputs are a way to easily extract
    19  information.
    20  
    21  This page assumes you're familiar with the
    22  [configuration syntax](/docs/configuration/syntax.html)
    23  already.
    24  
    25  ## Example
    26  
    27  An output configuration looks like the following:
    28  
    29  ```
    30  output "address" {
    31  	value = "${aws_instance.web.public_dns}"
    32  }
    33  ```
    34  
    35  ## Description
    36  
    37  The `output` block configures a single output variable. Multiple
    38  output variables can be configured with multiple output blocks.
    39  The `NAME` given to the output block is the name used to reference
    40  the output variable.
    41  
    42  Within the block (the `{ }`) is configuration for the output.
    43  These are the parameters that can be set:
    44  
    45    * `value` (required, string) - The value of the output. This must
    46      be a string. This usually includes an interpolation since outputs
    47      that are static aren't usually useful.
    48  
    49  ## Syntax
    50  
    51  The full syntax is:
    52  
    53  ```
    54  output NAME {
    55  	value = VALUE
    56  }
    57  ```