I'm no IBM shill but OpenWhisk is at the least open source and can let you host your functions locally for the sake of testing and you can try to do some unit and integration tests using them.
Devops as we know it isn't going to die any more than sysadmins weren't exterminated by "devops." However, if you're still doing sysadmin like it's the 90s your business is probably too slow to compete against more agile, cost-effective players and you'll wind up being forced to exit or wind down. Furthermore, businesses that iterate very slowly hopefully have customers that will continue to be able to afford to pay them for such slow turnaround. However, I've noticed the traditional large, behemoth enterprises used to multi-year cycles for what takes most competent companies a few weeks are all coming under business pressures to iterate or lose customers.
Devops as we know it isn't going to die any more than sysadmins weren't exterminated by "devops." However, if you're still doing sysadmin like it's the 90s your business is probably too slow to compete against more agile, cost-effective players and you'll wind up being forced to exit or wind down. Furthermore, businesses that iterate very slowly hopefully have customers that will continue to be able to afford to pay them for such slow turnaround. However, I've noticed the traditional large, behemoth enterprises used to multi-year cycles for what takes most competent companies a few weeks are all coming under business pressures to iterate or lose customers.