A dynamic supervisor that can hold Tortoise.Connection processes

A Tortoise.Supervisor, registered under the name Tortoise.Supervisor, is started as part of the Tortoise.App, which will get started automatically when Tortoise is included as a Mix dependency. Spawning a connection on the Tortoise.Supervisor can be done as follows:

{:ok, pid} =
  Tortoise.Supervisor.start_child(
    client_id: T1000,
    handler: {Tortoise.Handler.Logger, []},
    server: {Tortoise.Transport.Tcp, host: 'localhost', port: 1883},
    subscriptions: [{"foo/bar", 0}]
  )

While this is an easy way to get started one should consider the supervision strategy of the application using the Tortoise.Connections. Often one would like to close the connection with the application using the connection, in which case one could consider starting the Tortoise.Connection directly in the supervisor of the application using the connection, or start a Tortoise.Supervisor as part of ones application if it require more than one connection.

See the Connection Supervision article in the project documentation for more information on connection supervision.