Docker Compose presents a similar interface to the Docker CLI. The docker-compose command uses some of the same command names and arguments for the functionality it supports—which is a subset of the functionality of the full Docker CLI. When you run commands through the compose CLI, it sends requests to the Docker engine to act on the resources in the Compose file.
Compose treats all the resources in a Compose file as a single application, and to disambiguate applications running on the same host, the runtime adds a project name to all the resources it creates for the application. When you run an application through compose and then look at the containers running on your host, you won't see a container with a name that exactly matches the service name. Compose adds the project name and an index to container names in order to support multiple containers in the service.