Upgrade server from 2008r2 to 2012r2

Hello, We need to upgraded old hardware which has server 2008 r2 dc running its a single dc environment so I thought it’s better to upgrade to server 2012 r2 … https://blogs.technet.microsoft.com/canitpro/2015/02/10/step-by-step-migrating-windows-server-2003-fsmo-roles-to-windows-server-2012-r2/.

Windows 2008 VPS via Upgrade server from 2008r2 to 2012r2.