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spawn
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0.1.0
Spawn is the core lib for Spawn Actors System
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Files
lib/spawn/supervisor.ex
defmodule Spawn.Supervisor do
@moduledoc false
use Supervisor
require Logger
def start_link(config) do
Supervisor.start_link(__MODULE__, config,
name: String.to_atom("#{String.capitalize(config.app_name)}.Cluster")
)
end
def child_spec(config) do
id = String.to_atom("#{String.capitalize(config.app_name)}.Cluster")
%{
id: id,
start: {__MODULE__, :start_link, [config]}
}
end
@impl true
def init(config) do
children = [
Spawn.Cluster.StateHandoff.Supervisor,
cluster_supervisor(config),
Spawn.Cluster.Node.Registry.child_spec()
]
Supervisor.init(children, strategy: :one_for_one)
end
defp cluster_supervisor(config) do
cluster_strategy = config.proxy_cluster_strategy
topologies =
case cluster_strategy do
"epmd" ->
get_epmd_strategy()
"gossip" ->
get_gossip_strategy()
"kubernetes-dns" ->
get_dns_strategy(config)
_ ->
Logger.warning("Invalid Topology")
end
if topologies && Code.ensure_compiled(Cluster.Supervisor) do
Logger.debug("Cluster topology #{inspect(topologies)}")
{Cluster.Supervisor,
[topologies, [name: String.to_atom("#{String.capitalize(config.app_name)}.${__MODULE__}")]]}
end
end
defp get_epmd_strategy do
[
proxy: [
strategy: Cluster.Strategy.Epmd,
config: [
hosts: [
:"spawn_a@127.0.0.1",
:"spawn_a1@127.0.0.1",
:"spawn_a2@127.0.0.1",
:"spawn_a3@127.0.0.1",
:"spawn_a4@127.0.0.1",
:"spawn_actors_node@127.0.0.1",
:"spawn_actors_node1@127.0.0.1"
]
]
]
]
end
defp get_gossip_strategy do
[
proxy: [
strategy: Cluster.Strategy.Gossip
]
]
end
defp get_dns_strategy(config),
do: [
proxy: [
strategy: Elixir.Cluster.Strategy.Kubernetes.DNS,
config: [
service: config.proxy_headless_service,
application_name: config.proxy_app_name,
polling_interval: config.proxy_cluster_poling_interval
]
]
]
end