Expand variable in PowerShell DSC File resource content property - windows

Question

I have $Node.NodeName, $Node.Environment, $Node.Role defined in the following DSC config file. They don't appear to expand to the correct values in the MOF file and instead shows:
HOSTNAME: System.Collections.Hashtable
env: System.Collections.Hashtable
role: System.Collections.Hashtable
I was expecting each one to expand to the corresponding value as defined under AllNodes. $SQLUser and $SQLPassword display the correct passed in values.
CreateDBFile -SQLUser "myuser" -SQLPassword "mypassword" -ConfigurationData inventory.psd1 -OutputPath "C:\DSC"
inventory.psd1
#{
AllNodes = #(
#{
NodeName = "QA-WEB01"
NodeIP = "10.48.200.19"
Role = "web"
Environment = "QA"
},
#{
NodeName = "QA-WEB02"
NodeIP = "10.48.200.20"
Role = "Web"
Environment = "UAT"
}
)
}
CreateDBFile.ps1
Configuration CreateDBFile
{
param(
[String]$SQLUser,
[String]$SQLPassword
)
Node $AllNodes.Where{$_.Role -contains "web" -and $_.NodeIP -contains "10.48.200.19"}.NodeName
{
File FileExample
{
Ensure = 'Present'
Contents = "integrations:
- name: nri-mssql
env:
HOSTNAME: $Node.NodeName
USERNAME: $SQLUser
PASSWORD: $SQLPassword
PORT: 1433
ENABLE_SSL: false
TRUST_SERVER_CERTIFICATE: true
TIMEOUT: 15
interval: 15s
labels:
env: $Node.Environment
role: $Node.Role
inventory_source: config/mssql"
DestinationPath = 'D:\Logs\\mssql-config.yml'
Type = 'File'
}
}
}

Answer 1

Here is the working CreateDBFile.ps1 file:
Configuration CreateDBFile
{
param(
[String]$SQLUser,
[String]$SQLPassword
)
Node $AllNodes.Where{$_.Role -contains "web" -and $_.NodeIP -contains "10.48.200.19"}.NodeName
{
File FileExample
{
Ensure = 'Present'
Contents = "integrations:
- name: nri-mssql
env:
HOSTNAME: $($Node.NodeName)
USERNAME: $SQLUser
PASSWORD: $SQLPassword
PORT: 1433
ENABLE_SSL: false
TRUST_SERVER_CERTIFICATE: true
TIMEOUT: 15
interval: 15s
labels:
env: $($Node.Environment)
role: $($Node.Role)
inventory_source: config/mssql"
DestinationPath = 'D:\Logs\\mssql-config.yml'
Type = 'File'
}
}
}