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Docker compose

Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application's services.

Suppopse that we have two services that we'd like to group together to build and deploy as a single unit. We decided to use Docker Compose to build the services together.

In this exercise, we create a Docker Compose YAML file, then use the Docker Compose utility to both build the Docker container images and run them.

Here is an example of a dockercompose.yml file.


After the dockercompose.yml file is ready, we run the follwing commands

  • docker compose build : Builds the container images
  • docker compose up : This starts both the frontend website and backend web API by running the containers

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