Use password from environment

config/config.exs

@@ -11,6 +11,8 @@ config :music_library,
   ecto_repos: [MusicLibrary.Repo],
   generators: [timestamp_type: :utc_datetime, binary_id: true]
 
+config :music_library, MusicLibraryWeb, auth_password: "change me"
+
 # Configures the endpoint
 config :music_library, MusicLibraryWeb.Endpoint,
   url: [host: "localhost"],

config/runtime.exs

@@ -44,9 +44,17 @@ if config_env() == :prod do
       You can generate one by calling: mix phx.gen.secret
       """
 
+  auth_password =
+    System.get_env("AUTH_PASSWORD") ||
+      raise """
+      environment variable AUTH_PASSWORD is missing.
+      """
+
   host = System.get_env("PHX_HOST") || "example.com"
   port = String.to_integer(System.get_env("PORT") || "4000")
 
+  config :music_library, MusicLibraryWeb, auth_password: auth_password
+
   config :music_library, :dns_cluster_query, System.get_env("DNS_CLUSTER_QUERY")
 
   config :music_library, MusicLibraryWeb.Endpoint,