<#
.SYNOPSIS
Authenticates to Azure, retrieves a secret from Azure Key Vault, and uses it to get host details.
.DESCRIPTION
This script performs the following actions:
1. Attempts to connect to your Azure account.
2. If not already connected, it will prompt you to log in.
3. Retrieves a secret (e.g., a password or API key) from Azure Key Vault.
4. (Simulated) Uses the secret to authenticate and retrieve host details. This example simulates the host details retrieval. You would replace this with your actual command.
.NOTES
* Ensure you have the Azure PowerShell module installed (Install-Module -Name Az -AllowClobber).
* You need to have an Azure Key Vault created and the secret stored in it.
* The user or service principal running this script needs to have the "Get" permission on the secret in the Key Vault.
* This script is designed to be run in PowerShell 7 or later. It *may* work in older versions, but this is not guaranteed.
.EXAMPLE
PS> ./Get-HostDetailsFromKeyVault.ps1 -KeyVaultName "MyKeyVault" -SecretName "MySecret"
This will connect to Azure, retrieve the secret named "MySecret" from the Key Vault "MyKeyVault", and then (simulate) use that secret to get host details.
#>
param(
[Parameter(Mandatory = $true, HelpMessage = "The name of the Azure Key Vault.")]
[string]$KeyVaultName,
[Parameter(Mandatory = $true, HelpMessage = "The name of the secret in Azure Key Vault.")]
[string]$SecretName
)
# Ensures that the Az module is installed. Installs it if it is not.
try {
Get-Module -Name Az -ListAvailable -ErrorAction Stop | Out-Null
} catch {
Write-Warning "The Az PowerShell module is not installed. Attempting to install it..."
try {
Install-Module -Name Az -AllowClobber -Force -ErrorAction Stop
Write-Information "Az module installed successfully."
} catch {
Write-Error "Failed to install the Az module: $($_.Exception.Message)"
Write-Error "Please install the Az module manually using 'Install-Module -Name Az -AllowClobber' and try again."
Exit 1
}
}
# Connect to Azure
try {
$AzureContext = Get-AzContext
if (-not $AzureContext) {
Write-Information "Connecting to Azure..."
Connect-AzAccount | Out-Null
Write-Information "Successfully connected to Azure."
} else {
Write-Information "Already connected to Azure."
}
} catch {
Write-Error "Failed to connect to Azure: $($_.Exception.Message)"
Exit 1
}
# Get the secret from Azure Key Vault
try {
Write-Information "Retrieving secret '$SecretName' from Key Vault '$KeyVaultName'..."
$SecretValue = Get-AzKeyVaultSecret -VaultName $KeyVaultName -Name $SecretName |
ConvertFrom-Json |
Select-Object -ExpandProperty Value
if (-not $SecretValue)
{
throw "Failed to retrieve secret. Get-AzKeyVaultSecret returned an empty secret."
}
Write-Information "Successfully retrieved secret."
} catch {
Write-Error "Failed to retrieve secret from Azure Key Vault: $($_.Exception.Message)"
Exit 1
}
# Use the secret to get host details (replace with your actual command)
try {
Write-Information "Using secret to get host details (simulated)..."
# *** IMPORTANT: Replace this with your actual command to get host details. ***
# This is just a *simulation* using the secret. The actual command will depend
# on your environment and what you are trying to achieve (e.g., connecting to
# a remote server, calling an API, etc.).
#
# Example (replace with your *actual* command):
# Invoke-Command -ComputerName "your-hostname" -ScriptBlock {
# # Use the $SecretValue here. For example:
# $credential = New-Object System.Management.Automation.PSCredential("username", ($SecretValue | ConvertTo-SecureString -AsPlainText -Force))
# Get-WmiObject -Class Win32_OperatingSystem -Credential $credential
# }
#
# Another Example (if you were calling a REST API):
# $headers = @{
# "Authorization" = "Bearer $SecretValue" # Or "Basic $($SecretValue)" or whatever the API requires
# }
# $response = Invoke-RestMethod -Uri "https://your-api-endpoint" -Headers $headers -Method Get
# $response # Output the response
#
# For this *simulation*, we'll just output the secret length and a message:
#
$SecretLength = $SecretValue.Length
Write-Output "Simulated host details retrieval using secret (length: $SecretLength)."
Write-Output "Secret Value (First 6 Characters): $($SecretValue.Substring(0, [System.Math]::Min(6, $SecretLength)))..." #Output first 6 characters of the secret
Write-Output "Note: This is a *simulation*. You must replace this with your *actual* command."
# End of simulation. Replace this with your real code.
Write-Information "Successfully (simulated) retrieved host details."
} catch {
Write-Error "Failed to get host details: $($_.Exception.Message)"
Exit 1
}
Write-Information "Script completed."
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