How can I get from LYS airport to the city center of Lyon?

Basically what the title says. My flights will be arriving at LYS airport on a Thursday afternoon(around 2 o’clock and leaving on a Sunday evening (around 8 o’clock).

From the airport I want to get to the city center and specifically Foch metro station. For the trip back I want to start at Foch station and get to the airport.

What is the best way to do this? In order to make the question more specific my preferred means of transportation are as follows in order of preference.

  1. Metro or train (I haven’t found any lines that go to the airport though)
  2. Bus
  3. Taxi