openproject/packaging/conf/configuration.yml

default:
  rails_cache_store: <%= ENV.fetch('RAILS_CACHE_STORE') { :memcache }.to_sym %>
  session_store: <%= ENV.fetch('SESSION_STORE') { :cache_store }.to_sym %>
  email_delivery_method: <%= ENV.fetch('EMAIL_DELIVERY_METHOD') { :sendmail } %>
  smtp_address: <%= ENV['SMTP_HOST'] %>
  smtp_port: <%= ENV.fetch('SMTP_PORT') { 25 }.to_i %>
  smtp_domain: <%= ENV.fetch('SMTP_DOMAIN') { ENV['HOSTNAME'] } %>
  smtp_authentication: <%= ENV.fetch('SMTP_AUTHENTICATION') { :login }.to_sym %>
  smtp_user_name: <%= ENV['SMTP_USERNAME'] %>
  smtp_password: <%= ENV['SMTP_PASSWORD'] %>
  attachments_storage_path: <%= ENV.fetch('ATTACHMENTS_STORAGE_PATH') { "/var/db/openproject/files" } %>