Callback invoked to start the supervisor and during hot code upgrades.

Options

• :strategy - the restart strategy option. Only :one_for_one is supported by dynamic supervisors.

• :max_restarts - the maximum amount of restarts allowed in a time frame. Defaults to 3 times.

• :max_seconds - the time frame in which :max_restarts applies in seconds. Defaults to 5 seconds.

• :max_dynamic - the maximum number of children started under the supervisor via start_child/2. Defaults to infinity children.

• :subscribe_to - a list of producers to subscribe to. Each element represents the producer or a tuple with the producer and the subscription options. e.g. [Producer] or [{Producer, max_demand: 10, min_demand: 20}]

Callback implementation for Experimental.DynamicSupervisor.init/1.