Sample configuration to install SQL Server using MSAs for Services

DscSqlInstallWithMSA.ps1

$SQLSvcMSA = 'DOMAIN\MSASQLName$'
$AgtSvcMSA = 'DOMAIN\MSAAgentName$'

# These are required but not used since we are using MSAs
$SQLSvcAccount = New-Object System.Management.Automation.PSCredential($SQLSvcMSA, $('mypassword' | ConvertTo-SecureString -asPlainText -Force))
$AgtSvcAccount = New-Object System.Management.Automation.PSCredential($AgtSvcMSA, $('mypassword' | ConvertTo-SecureString -asPlainText -Force))


Configuration ServerBuild {
    Import-DscResource -ModuleName 'PSDscResources'
    Import-DscResource -ModuleName 'SqlServerDsc'

    SqlSetup Install_SQL
    {
        SourcePath           = '\\fileshare\SQL2017\developer\'
        UpdateEnabled        = $true
        UpdateSource         = '\\fileshare\SQL2017\Updates\'
        InstanceName         = 'MSSQLSERVER'
        Features             = 'SQLEngine'
        SQLSvcAccount        = $SQLSvcAccount
        AgtSvcAccount        = $AgtSvcAccount
        
        SQLSysAdminAccounts  = 'DOMAIN\SysAdminAccount'
        InstallSQLDataDir    = 'D:\'  
        SQLUserDBDir         = 'D:\SQLData'  
        SQLUserDBLogDir      = 'D:\DbLogs' 
        SQLTempDBDir         = 'D:\SQLData'
        SQLTempDBLogDir      = 'D:\DbLogs'

        SecurityMode         = 'SQL'
        SAPwd                = $SAPwd
    }

}