Add environment variables for time zone and log level

config/application.rb

@@ -22,7 +22,7 @@ module CodeOcean
 
     # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
     # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
-    config.time_zone = 'UTC'
+    config.time_zone = ENV.fetch('RAILS_TIME_ZONE', 'UTC')
 
     # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
     # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]

config/environments/production.rb

@@ -54,7 +54,7 @@ Rails.application.configure do
 
   # Include generic and useful information about system operation, but avoid logging too much
   # information to avoid inadvertent exposure of personally identifiable information (PII).
-  config.log_level = :info
+  config.log_level = ENV.fetch('RAILS_LOG_LEVEL', 'info').to_sym
 
   # Prepend all log lines with the following tags.
   # config.log_tags = [ :subdomain, :uuid, :request_id ]

config/environments/staging.rb

@@ -69,7 +69,7 @@ Rails.application.configure do
 
   # Include generic and useful information about system operation, but avoid logging too much
   # information to avoid inadvertent exposure of personally identifiable information (PII).
-  config.log_level = :info
+  config.log_level = ENV.fetch('RAILS_LOG_LEVEL', 'info').to_sym
 
   # Prepend all log lines with the following tags.
   # config.log_tags = [ :subdomain, :uuid, :request_id ]