问题
I am trying to assign value to built-in release notes variable in "Run a Script" step.
$OctopusParameters["Octopus.Release.Notes"] = "Some release notes"
In the next step "Send an Email" I am using this variable in email body, but unfortunately it is empty.
<p>#{Octopus.Release.Notes}</p>
Is it possible to set Octopus Deploy system variable value from PowerShell and use it in the next step?
I am using Octopus Deploy 3.7.11.
EDIT:
I have also tried the cmdlet Set-OctopusVariable and it did not work.
Set-OctopusVariable -name "Octopus.Release.Notes" -value "Something"
回答1:
I don't think it is possible to overwrite values of the built-in variables provided by Octopus Deploy. But you could define your own output variable and refer to that in the following steps. For example in your 'Run a script'-step use:
Set-OctopusVariable -name "MyReleaseNote" -value "Some text here"
Then the "Send an Email"-step can refer to this text by using the following (assuming the first step is called 'FirstStep'):
#{Octopus.Action[FirstStep].Output.MyReleaseNote}
The variable can also be used from a script in other steps, then use the syntax:
$relnote = $OctopusParameters["Octopus.Action[FirstStep].Output.MyReleaseNote"]
(If you want to save the generated releasenote perhaps you could save it as an 'artifact' in the project).
回答2:
I tried this using Octoposh. Modifying an existing variable is covered in the Octoposh wiki at Modifying Variables - Edit a variable of a Project/Library variable set.
I wasn't able to get this to work because of timeouts on our network, but it looks like it should work - just not as straight-forward as I expected.
来源：https://stackoverflow.com/questions/41607706/how-to-set-system-variable-value-in-octopus-deploy-from-powershell