Rails.application.routes.draw do # 2行追加 require 'sidekiq/web' mount Sidekiq::Web => '/sidekiq' ... end Sidekiq.configure_server do |config| config.redis = { url: 'redis://redis:6379', namespace: "sidekiq" } end Sidekiq.configure_client do |config| config.redis = { url: 'redis://redis:6379', namespace: "sidekiq" } end