Connect-AzAccount using Service principal

connect-azaccount-service-principal.ps1

################ Azure login params ###################

$ServicePrincipalCertificateThumbprint = ''
$TenantId = '' #This is AAD Tenant Id where the below app registration is created, not Subscription Id
$ApplicationId = '' #THis is the application registration id sometimes called clientId. Make sure this app registration has permission to send message.

################# One time install ####################

$azAccountsInstalled = Get-InstalledModule Az.Accounts

if( ! $azAccountsInstalled) {
    Install-Module Az.Accounts -AllowClobber
} 
else{
    Write-Host "Az.Accounts already present" -ForegroundColor Yellow
}
#######################################################

# Connect using service principal and validations
# If running from Linux use certificate path https://docs.microsoft.com/en-us/powershell/module/az.accounts/connect-azaccount?view=azps-6.4.0#example-9--connect-using-certificate-file

Connect-AzAccount -CertificateThumbprint $ServicePrincipalCertificateThumbprint -SendCertificateChain -ApplicationId $ApplicationId -Tenant $TenantId -ServicePrincipal

get-accesstoken.ps1

# Change the -ResourceUrl based on scenario. Below is for ServiceBus
$accessToken = Get-AzAccessToken -ResourceUrl https://servicebus.azure.net/