A road bike is certainly fine for that length commute, but you may want to consider some alternatives - ride a few to figure out what you like.

I have been doing 17 miles each way on a road bike, as do many other commuters by me. It is a racing oriented bike though and has some drawbacks that made me look for a second bike for more comfort and flexibility.

Potential drawbacks to consider
1. Limited options for carrying stuff on most road bikes
2. comfort due to riding position (esp with backpack) and vibrations (for aluminum). Many touring/adventure touring/ cyclocross type bikes will have a more relaxed geometry which can help, the examples given plus many more (many endurance road bikes are more relaxed as well). Steel or carbon can help with vibrations.
3. Fenders - this winter me and my bike got filthy form rain and dirt. Next winter I want full fenders.
4. Tire size - you can commute on 23mm stepping up a bit improves ride, less worrying flats, and minimal speed impact. 28s are a good middle ground for a road type bike, 32-35 give more comfort for bikes that can take them without a huge speed and weight sacrifice. SOME roadbikes can take 28s, otherwise look at cyclocross, touring, etc.

I decided on an adventure tourer/gravel bike, that could handle racks, fenders, and wider tires. I also went for steel for comfort plus a very relaxed geometry. I will still ride my road bike some of the time but a few min extra on my commute is generally worth it for comfort.

As for components set, its up to you. I wanted 105 at a minimum, as my road bike had good stuff (but older). I wound up with SRAM APEX, which is close to 105 level I guess.

Ultimately, ride some bikes and get what is comfortable for you!