How to restart a service running in docker compose

I’m playing with docker-compose for a test Flask app. My docker-compose.yml looks like this:

version: '2'
services:
  www:
    build: www/.
    ports:
      - "5000:5000"
    volumes:
      - ./www:/opt/www
    links:
      - db
    depends_on:
      - db
  db:
    build: db/.
    volumes:
      - ./database:/var/lib/mysql
    environment:
       MYSQL_ROOT_PASSWORD: supersecure

I noticed any change I made in my files within my templates folder did not take effect when I reloaded the browser locally at localhost:5000

So, I found that I can just restart the ‘www’ service defined on my docker-compose.yml file using this simple command:

docker-compose restart www

I’m not sure if this is the recommended way, but its working for now. If you have any suggestions please leave them on the comments area below.