PSVirtualMachine Declare output data type in a workflow A workflow specifies the data type of its output using the OutputType attribute. This attribute has no effect during runtime, but it provides you an indication at de time of the expected output of the runbook. As the tool set for runbooks continues to evolve, the importance of declaring output data types at de time increases. Therefore it's a best practice to include this declaration in any runbooks that you create. The following sample runbook outputs a string object and includes a declaration of its output type. If your runbook outputs an array of a certain type, then you should still specify the type as opposed to an array of write message type.

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The first activity calls the AuthenticateTo-Azure runbook. If you have already created your prototype file, edit it and add an entry for the information file you just created. The following lines create a warning message and then an error message that will suspend the runbook. You can attach a file to a message you're writing in either of these ways: Press the Attach File button at the lower left of the composer window, then select a file to attach.

This is done by setting PowerShell redirection against the statement to be executed. You can also reply to the last write message in a conversation via the Reply, Reply All or Forward buttons on the toolbar.

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Note The Write-Progress cmdlet is not valid in a runbook, since this cmdlet is intended for use with an interactive user. Write output to warning and error streams The warning and error streams log problems that occur in a runbook. Write a message To compose a new message in Geary, press write message New Message button on the toolbar. Write-Verbose —Message "This is a verbose message. Further Reading. The second runbook, which normally performs core logic to automate a given scenario, in this case executes the Authenticate Runbook template.

While this runbook is straightforward, there is one configuration item to call out here. Drag the file from the Nautilus file manager to the composer window, and drop it either on the text fields at the top of the window or on the toolbar at the bottom.

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Working with message streams Unlike the output stream, message streams communicate information to the user. Geary can also send plain text messages. Create a warning or error message using the Write-Warning or Write-Error cmdlet. The runbook includes the output type Microsoft. By default Azure Automation does not messahe any debug stream data, only output, error, wite warning data are captured as well as verbose data if the runbook is configured to capture it.

Here is the basic logic of the AuthenticateTo-Azure runbook. write message

Write message

To store verbose messages, use the Azure portal Configure tab with the Log Verbose Records setting to configure your published runbooks to log verbose messages. With that variable set, verbose messages are displayed in the Test output pane of the Azure portal.

It displays the to your Test output pane. Note After you enter a value in the Output Type field in the Input and Output properties pane, be sure to click outside the control so that it recognizes your entry. To display verbose messages while testing a runbookyou must set the VerbosePreference variable to Continue. The following example shows two write message runbooks to demonstrate the Input and Output feature. Testing a runbook does not wrtie progress messages even if the runbook is configured to log progress records.

The following sample runbook outputs a string object and includes a declaration of its output type. This parameter is required for Write-Output. Activities can also write to the warning and error streams.

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The second activity runs the Write-Verbose cmdlet with Data source set to Activity output. To reply to a message, open the message menu in the upper right corner of the message and choose Reply, Reply All or Forward. The following code creates a verbose message using the Write-Verbose cmdlet. In most cases, you should keep the default setting of not logging verbose records.

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Drafts For mail servers that support drafts, Geary will automatically save the message as you type. It's recommended to use the full. Messgae the debug stream is not available for a runbook, your runbook should use verbose messages for debug information. In the drop-down menu, check write message uncheck "Rich Text" to toggle between plain text and rich text mode. Under normal circumstances, you would have this runbook do something against a resource leveraging the output from the child runbook.

This is a rwite message. The following table lists the preference variables that can be used in runbooks, with their default and valid values.

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Using the full name exposes all the properties of the class to the databus in the runbook and increases flexibility when the properties are used for conditional logic, logging, and referencing as values for other runbook activities. Redirect the debug stream that we don't capture to a stream that we do capture such as output.

Also, Field path is set to Context.

Write message

By default, a runbook continues to execute after a warning or error. There are multiple message streams for different kinds of information, and Azure Automation handles each stream differently. Example— File For example, a partial copyright message might look like: Copyright c Company Name All Nessage Reserved This product is protected by copyright and distributed under s restricting copying, distribution and decompilation.

See How to Build a Packageif needed.


The last activity executes the Write-Output cmdlet to write profile data to a variable using a PowerShell expression for the Inputobject parameter. Work with preference variables You can set certain Windows PowerShell preference variables in your runbooks to control the response to data sent to different output streams.

Write message

By default, the job history does not store verbose messages from published runbooks, for performance reasons. Azure Write message writes these streams to the job history when qrite a runbook. Therefore it's a best practice to include this declaration in any runbooks that you create.

Write message

If your runbook outputs an array of a certain type, then you should still specify the type as opposed to an array of the type. The resulting output is the name of the wrlte.

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Build your package. Write output to verbose stream The Verbose message stream supports general information about runbook operation. If you close the composer without sending, Geary will prompt you to keep the draft or to discard it.