How do I insulate these walls?

I’m planning on insulting these exterior walls with fiberglass but am concerned about possible moisture from condensation between the insulation and metal. Do I need some sort of moisture barrier? Any help would be appreciated. Thanks in advance.

I’m planning on insulting these exterior walls with fiberglass but am concerned about possible moisture from condensation between the insulation and metal. Do I need some sort of moisture barrier? Any help would be appreciated. Thanks in advance.