Docker Compose is very easy to use; basically, it has a three-step process:
- Define the environment of your services with Dockerfile so it can be recreated anywhere.
- After defining the microservices that will be used as a single application in the docker-compose.yml file. By using this docker-compose.yml file, you can run these services together in an isolated environment.
- Run docker-compose up and Compose will start and run your entire app.
We have seen three steps to use Docker Compose in an isolated application; let's see how to write a Docker Compose file.
