Log message on container start

[filipsnastins]

DockerContainer is an abstract class that provides an abstract method log_message_on_container_start.

The message will be logger on DockerContainer.start

Example:

class TomodachiContainer(DockerContainer):
    def __init__(
        self,
        ...
    ) -> None:
        ...

    def log_message_on_container_start(self) -> str:
        return f"Tomodachi service: http://localhost:{self.edge_port}"

Breaking changes:

• DockerContainer.restart_container method renamed to DockerContainer.restart