ARM Template Custom Script Extension with paramaters that have a space

Question

powershell -File './scripts/myscript.ps1' -Param1 "My Param"

Whats the syntax needed to deploy a custom script extension that invokes a PowerShell file with params that have a space in them. These are what I've tried so far and none of them have worked. Each of these are as they were in my ARM template:

# Failed to being executing the script. Error from the logs on the VM: "VMExtensionProvisioningError"
"[concat('powershell -File InstallVSTSAgent.ps1 -vstsAccount \"', parameters('vstsAccount'), '\"')]"

# Failed in the same way.
"[concat('powershell -File InstallVSTSAgent.ps1 -vstsAccount \\\"', parameters('vstsAccount'), '\\\"')]"

# Ran, but the parameters entering my PowerShell file were wrapped in `ticks`
"[concat('powershell -File InstallVSTSAgent.ps1 -vstsAccount `\"', parameters('vstsAccount'), '`\"')]"

first one should work, I don't think the problem is in the template. — 4c74356b41, Jul 21 '17 at 19:00
@4c74356b41 - you are correct. I tried it again and it worked. It must have been a different issue in my script I fixed earlier. — Jonathan Eckman, Jul 21 '17 at 19:05

score 1 · Answer 1 · answered Jul 21 '17 at 18:58

Create a variable to hold the quote, then concat the string you want: https://stackoverflow.com/a/37293130/84395

"variables": {
    "singleQuote": "'",
},
...
"[concat('powershell -File InstallVSTSAgent.ps1 -vstsAccount ', variables('singleQuote'), parameters('vstsAccount'), variables('singleQuote'))]"

score 1 · Accepted Answer · answered Jul 21 '17 at 19:06

1

The first variant of escaping was correct. To escape in ARM template use \

answered Jul 21 '17 at 19:06

4c74356b41

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ARM Template Custom Script Extension with paramaters that have a space

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