init eventstore on migrate

lib/customer_service/release.ex

@@ -7,6 +7,7 @@ defmodule CustomerService.Release do
 
   def migrate do
     load_app()
+    init_event_store()
 
     for repo <- repos() do
       {:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :up, all: true))
@@ -23,8 +24,15 @@ defmodule CustomerService.Release do
   end
 
   defp load_app do
-    # Many platforms require SSL when connecting to the database
     Application.ensure_all_started(:ssl)
+    Application.ensure_all_started(:postgrex)
     Application.ensure_loaded(@app)
   end
+
+  def init_event_store do
+    config = CustomerService.EventStore.config()
+
+    :ok = EventStore.Tasks.Create.exec(config, [])
+    :ok = EventStore.Tasks.Init.exec(config, [])
+  end
 end