Chapter 5

1. a: Docker Compose will run all application components just in one host. We will also use docker-compose files for deploying Swarm orchestrated applications with their components distributed on different hosts, but that requires a cluster running. In that case, we will not use the docker-compose binary to deploy the application; only the definition file will be valid and we will use it with the docker stack action. In Docker Swarm, we deploy swarm services, not containers.
2. d: Docker Compose provides all required actions to build, share, and deploy multi-container applications.
3. a and c: Docker Compose will review whether project images are present in the host. If they are not, the Docker daemon will try to download all not-present ones. Once the Docker daemon has all the required images, it will start all project containers and our terminal will be attached to containers' standard and error output unless the --detach or -d argument is used.
4. a: Docker Compose will allow us...