init

global_bck_job/.formatter.exs

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+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]

global_bck_job/.gitignore

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+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+global_bck_job-*.tar
+
+# Temporary files, for example, from tests.
+/tmp/

global_bck_job/README.md

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+# GlobalBckJob
+
+**TODO: Add description**
+
+## Installation
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed
+by adding `global_bck_job` to your list of dependencies in `mix.exs`:
+
+```elixir
+def deps do
+  [
+    {:global_bck_job, "~> 0.1.0"}
+  ]
+end
+```
+
+Documentation can be generated with [ExDoc](https://github.com/elixir-lang/ex_doc)
+and published on [HexDocs](https://hexdocs.pm). Once published, the docs can
+be found at <https://hexdocs.pm/global_bck_job>.
+

global_bck_job/lib/global_bck_job.ex

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+defmodule GlobalBackgroundJob do
+  @moduledoc """
+  Documentation for `GlobalBckJob`.
+  """
+
+  @doc """
+  Hello world.
+
+  ## Examples
+
+      iex> GlobalBackgroundJob.hello()
+      :world
+
+  """
+  def hello do
+    :world
+  end
+end

global_bck_job/lib/global_bck_job/application.ex

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+defmodule GlobalBackgroundJob.Application do
+  # See https://hexdocs.pm/elixir/Application.html
+  # for more information on OTP Applications
+  @moduledoc false
+
+  use Application
+
+  @impl true
+  def start(_type, _args) do
+    children = [
+      # Starts a worker by calling: GlobalBckJob.Worker.start_link(arg)
+      # {GlobalBackgroundJob.Worker, arg}
+      {Cluster.Supervisor, [topologies(), [name: GlobalBackgroundJob.ClusterSupervisor]]},
+      {GlobalBackgroundJob.DatabaseCleaner.Starter,[timeout: :timer.seconds(2)]} 
+    ]
+
+
+    # See https://hexdocs.pm/elixir/Supervisor.html
+    # for other strategies and supported options
+    opts = [strategy: :one_for_one, name: GlobalBackgroundJob.Supervisor]
+    Supervisor.start_link(children, opts)
+  end
+  
+  defp topologies do 
+  [
+    background_job: [
+      strategy: Cluster.Strategy.Gossip,
+	config: [
+  #  port: 45892,
+    if_addr: "10.13.4.143",
+	multicast_if: "10.13.4.143", #addr locale
+    multicast_addr: "255.255.255.255",
+    multicast_ttl: 1,
+	secret: "secret",
+    broadcast_only: true
+  	]
+
+    ]
+  ]
+  
+  end
+end

global_bck_job/lib/global_bck_job/dbase_cleaner.ex

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+defmodule GlobalBackgroundJob.DatabaseCleaner do
+  use GenServer
+  require Logger
+
+  alias __MODULE__.Runner 
+
+  @impl GenServer
+  def init(args \\ []) do
+    timeout = Keyword.get(args, :timeout)
+
+    schedule(timeout)
+
+    {:ok, timeout}
+  end
+
+  @impl GenServer
+  def handle_info(:execute, timeout) do
+    Task.start(Runner, :execute, [])
+
+    schedule(timeout)
+
+    {:noreply, timeout}
+  end
+
+  defp schedule(timeout) do
+    Process.send_after(self(), :execute, timeout)
+  end
+
+end

global_bck_job/lib/global_bck_job/runner.ex

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+defmodule GlobalBackgroundJob.DatabaseCleaner.Runner do
+  require Logger
+
+  def execute do
+    random = :rand.uniform(1_000)
+
+    Process.sleep(random)
+
+    Logger.info("#{__MODULE__} #{random} Mucho trabajo!")
+  end
+
+end

global_bck_job/lib/global_bck_job/starter.ex

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+defmodule GlobalBackgroundJob.DatabaseCleaner.Starter do
+  use GenServer
+
+  alias GlobalBackgroundJob.DatabaseCleaner
+
+  def start_link(opts) do
+    GenServer.start_link(__MODULE__, opts, name: __MODULE__)
+  end
+
+  @impl GenServer
+  def init(opts) do
+    pid = start_and_monitor(opts)
+
+    {:ok, {pid, opts}}
+  end
+
+  @impl GenServer
+  def handle_info({:DOWN, _, :process, pid, _reason}, {pid,opts} = state) do
+   {:noreply, {start_and_monitor(opts), opts}} 
+  end
+
+  defp start_and_monitor(opts) do
+    pid = 
+      case GenServer.start_link(DatabaseCleaner, opts, name: {:global, DatabaseCleaner}) do
+        {:ok, pid} -> 
+          pid
+
+        {:error, {:already_started, pid}} ->
+          pid
+      end
+      
+      Process.monitor(pid)
+
+      pid
+  end
+end

global_bck_job/mix.exs

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+defmodule GlobalBckJob.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :global_bck_job,
+      version: "0.1.0",
+      elixir: "~> 1.15",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      extra_applications: [:logger],
+      mod: {GlobalBackgroundJob.Application, []}
+    ]
+  end
+
+  # Run "mix help deps" to learn about dependencies.
+  defp deps do
+    [
+      {:libcluster, "~> 3.3"}
+      # {:dep_from_hexpm, "~> 0.3.0"},
+      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
+    ]
+  end
+end

global_bck_job/mix.lock

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+%{
+  "jason": {:hex, :jason, "1.4.1", "af1504e35f629ddcdd6addb3513c3853991f694921b1b9368b0bd32beb9f1b63", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "fbb01ecdfd565b56261302f7e1fcc27c4fb8f32d56eab74db621fc154604a7a1"},
+  "libcluster": {:hex, :libcluster, "3.3.3", "a4f17721a19004cfc4467268e17cff8b1f951befe428975dd4f6f7b84d927fe0", [:mix], [{:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "7c0a2275a0bb83c07acd17dab3c3bfb4897b145106750eeccc62d302e3bdfee5"},
+}

global_bck_job/test/global_bck_job_test.exs

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+defmodule GlobalBckJobTest do
+  use ExUnit.Case
+  doctest GlobalBckJob
+
+  test "greets the world" do
+    assert GlobalBckJob.hello() == :world
+  end
+end

global_bck_job/test/test_helper.exs

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+ExUnit.start()