Glass door? Metal frame is part of the door? (Not talking about a netal buck or jamb are you?)

How are you going to get the wire inside the door? With some doors it's impossible so an electric strike is not the way to go.

One way to do this then is with a magnetic lock. This is an DC electromagnet attached to the jamb usually at the top. You attach a steel plate to the door so that when the magnet is energized it holds the door closed.

This requires a fair amount of "other stuff" to make it work and be friendly to people trying to exit through the doors and be safe in case of fire. It's usually done in commercial settings.

-Hal