Get SailPoint IdentityNow VA Clusters and VAs. Associated blog https://blog.darrenjrobinson.com/querying-sailpoint-identitynow-virtual-appliance-clusters-with-powershell/

Get IdentityNow VA Clusters.ps1

# IdentityNow Orgname
$orgName = "yourOrgName"

# IdentityNow Admin User
$adminUSR = [string]"YourAdminAccount".ToLower()
$adminPWDClear = 'yourAdminPassword'

# Generate the password hash
# Requires Get-Hash from PowerShell Community Extensions (PSCX) Module 
# https://www.powershellgallery.com/packages/Pscx/3.2.2
$passwordHash = Get-Hash -Algorithm SHA256 -StringEncoding utf8 -InputObject ($($adminPWDClear) + (Get-Hash -Algorithm SHA256 -StringEncoding utf8 -InputObject ($adminUSR)).HashString.ToLower())
$adminPWD = $passwordHash.ToString().ToLower() 
$adminPWD

# Customer-SB   
$clientIDv3 = "ba38b166-5f24-4448-ac0b-yourClientID"
$clientSecretv3 = "770a71ae20c05301848d2222d8760fe0d9f632yourClientSecret"

# Basic Auth
$Bytesv3 = [System.Text.Encoding]::utf8.GetBytes("$($clientIDv3):$($clientSecretv3)")
$encodedAuthv3 = [Convert]::ToBase64String($Bytesv3)

$Headersv3 = @{Authorization = "Basic $($encodedAuthv3)"}

# Get v3 oAuth Token
# oAuth URI
$oAuthURI = "https://$($orgName).api.identitynow.com/oauth/token"

$v3Token = Invoke-RestMethod -Method Post -Uri "$($oAuthURI)?grant_type=password&username=$($adminUSR)&password=$($adminPWD)" -Headers $Headersv3 -SessionVariable IDNv3

if ($v3Token.access_token){
    # Get Clusters
    $clusters = Invoke-RestMethod -Method GET -Uri "https://$($orgName).identitynow.com/api/cluster/list" -Headers @{Authorization = "Bearer $($v3Token.access_token)"}
    # Get Specific Cluster
    $myCluster = $clusters | Select-Object | Where-Object {$_.description -eq "Australia East"}

    if ($clusters){
        write-host -ForegroundColor green "$($clusters.Count) IdentityNow VA Clusters found."
        foreach ($cluster in $clusters){
            write-host -ForegroundColor blue "  $($cluster.description)"
                foreach ($client in $cluster.clients) {
                    write-host -ForegroundColor Cyan "      $($client.id) $($client.description)"
                }
        }
    }
} else {
    write-host -ForegroundColor Red "No Access Token obtained. Check your config settings."
}