Add .env file for docker-compose

config/application.rb

@@ -15,5 +15,9 @@ module App
     # Application configuration can go into files in config/initializers
     # -- all .rb files in that directory are automatically loaded after loading
     # the framework and any gems in your application.
+
+    def name
+      ENV["APP_NAME"]
+    end
   end
 end

config/database.yml

@@ -19,8 +19,8 @@ default: &default
   encoding: unicode
   pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
   host: db
-  username: postgres
-  password:
+  username: <%= ENV['POSTGRES_USER'] %>
+  password: <%= ENV['POSTGRES_PASSWORD'] %>
 
 development:
   <<: *default
@@ -82,5 +82,3 @@ test:
 production:
   <<: *default
   database: app_production
-  username: app
-  password: <%= ENV['APP_DATABASE_PASSWORD'] %>