Using docker-compose

• Docker Compose is a tool that lets you define and run multi-container applications. With one command, you can create and launch all the services defined in the docker-compose.yml file.
• If Docker Desktop is installed on your machines, Docker Compose should already be included. If not, they need to install it separately. You can check if it’s installed by running:

   docker-compose --version

Create a docker-compose.yml File

• Navigate to the root of your project where Dockerfile is also located, create a docker-compose.yml file. Below is a simple docker-compose.yml for a static site served by Nginx.

   version: '3.8'
   services:
   nginx:
      image: nginx:alpine
      ports:
         - "8089:80"
      volumes:
         - ./my-folder:/usr/share/nginx/html

Build and Run Containers

• Run the command below in your terminal from the root of your project

   docker-compose up -d

• The -d flag runs containers in the background.
• Open a web browser and navigate to http://localhost:/ to verify that your service is running correctly.
• Adjust based on your docker-compose.yml settings. In my example I use port 8089
• Use docker-compose ps to check the status of running services.