What is the purpose of the `target` directive in a docker-compose.yml file?

Question

Examine the docker-compose.yml file below:
```yaml
services:
  api:
    build:
      context: ./api
      target: prod
```

What is the purpose of the `target` directive in this file?

Accepted Answer

It specifies the multi-stage to be used.

Answer

It defines the container name.

Answer

It defines the label of the image to be created.

Answer

It activates the production mode for the container.

Question from the Docker compose test