/var/www/arvados-api/current$ RAILS_ENV=production bundle exec rails console
irb(main):001:0> Thread.current[:user] = User.all.select(&:identity_url).last
-irb(main):002:0> Thread.current[:user].is_admin = true
-irb(main):003:0> Thread.current[:user].update_attributes is_admin: true, is_active: true
-irb(main):004:0> User.where(is_admin: true).collect &:email
+irb(main):002:0> Thread.current[:user].update_attributes is_admin: true, is_active: true
+irb(main):003:0> User.where(is_admin: true).collect &:email
=> ["root", "your_address@example.com"]