Search input with an icon Bootstrap 4

Question

No clue how I can do this, since BS 4 doesn\'t support glyphicons. Do I set it up as a background or do I apply different positioning to a font-awesome icon?

This i

Answer 1

I made another variant with dropdown menu (perhaps for advanced search etc).. Here is how it looks like:

    
    
        
            Toggle Dropdown
        
        
            
        
        

            Action
            Another action
            Something else here
            

            Separated link
        
    

Note: It appears green in the screenshot because my site main theme is green.