Based on the discussion about Access vRO Filesystem using Polyglot from here an approach how to store data in a PowerShell container at the runtime.
The interesting thing about this approach is that the PowerShell CmdLets do not work, but calling the dotNET methods works fine. It's not clear to me if it is a bug or a feature.
Another interesting thing is that it seems to be necessary to create a directory, in this example temp. Writing directly to /run/vco-polyglot/function did not succeed in my case.
Here the commented code:
# Begin-----------------------------------------------------------------
function Handler($context, $inputs) {
$inputsString = $inputs | ConvertTo-Json -Compress;
# Write-Host "Inputs were $($inputsString)";
# Create temp directory in /run/vco-polyglot--------------------------
[System.String]$directory = "temp";
# New-Item -ItemType "directory" -Force -Path "$($directory)";
if ([System.IO.Directory]::Exists($directory) -eq $false) {
Write-Host "Create directory $($directory)";
[System.IO.Directory]::CreateDirectory($directory);
}
# Create file Test.txt in temp directory with text--------------------
[System.String]$writeText = "This is a test";
[System.String]$path = "$($directory)/Test.txt";
[System.IO.File]::WriteAllText($path, $writeText);
# List all files in temp directory------------------------------------
[System.String[]]$files = [System.IO.Directory]::GetFiles($directory);
forEach ($file in $files) {
Write-Host $file;
}
# Read the content from the Text.txt file in temp directory-----------
[System.String]$readText = [System.IO.File]::ReadAllText($path);
Write-Host $readText;
# Delete directory temp-----------------------------------------------
if ([System.IO.Directory]::Exists($directory)) {
Write-Host "Delete directory $($directory)";
[System.IO.Directory]::Delete($directory, $true);
}
$output = @{status = "done"}
return $output;
}
# End-------------------------------------------------------------------
Here my test result with the vRealize Automation 8.5.1.18666:
Conclusion
In a PowerShell container we have the possibility, by using dotNET methods, to access the file system in the path /run/vco-polyglot/function. This can be very helpful for certain requirements. However, we must not forget that the container with its content is also deleted at the end of the automation process. That is why this approach can only be used for temporary storage.