Add sidekiq health check

app/workers/scheduler/sidekiq_health_scheduler.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class Scheduler::SidekiqHealthScheduler
+  include Sidekiq::Worker
+
+  sidekiq_options retry: 0
+
+  def perform
+    url = ENV.fetch('SIDEKIQ_HEALTH_FETCH_URL', nil)
+    Request.new(:head, url).perform if url.present?
+  end
+end

config/sidekiq.yml

@@ -58,3 +58,7 @@
       interval: 1 minute
       class: Scheduler::SuspendedUserCleanupScheduler
       queue: scheduler
+    sidekiq_health_scheduler:
+      interval: 30 seconds
+      class: Scheduler::SidekiqHealthScheduler
+      queue: scheduler