added 260907 version of worker toolkit

worker-toolkit-flaredown/repo/backend/config/puma.rb

@@ -0,0 +1,42 @@
+#!/usr/bin/env puma
+
+# Load "path" as a rackup file.
+#
+# The default is "config.ru".
+#
+rackup DefaultRackup
+
+port Integer(ENV.fetch("PORT") { 3000 })
+environment ENV.fetch("RACK_ENV") { "development" }
+
+# Configure "min" to be the minimum number of threads to use to answer
+# requests and "max" the maximum.
+#
+# The default is "0, 16".
+#
+threads_count = Integer(ENV.fetch("MAX_THREADS") { 16 })
+threads threads_count, threads_count
+
+# Preload the application before starting the workers; this conflicts with
+# phased restart feature. (off by default)
+preload_app!
+
+# === Cluster mode ===
+
+# How many worker processes to run.
+#
+# The default is "0".
+#
+workers Integer(ENV.fetch("WEB_CONCURRENCY") { 0 })
+
+before_fork do
+  ActiveRecord::Base.connection_pool.disconnect!
+end
+
+on_worker_boot do
+  # Worker specific setup for Rails 4.1+
+  # See: https://devcenter.heroku.com/articles/deploying-rails-applications-with-the-puma-web-server#on-worker-boot
+  ActiveSupport.on_load(:active_record) do
+    ActiveRecord::Base.establish_connection
+  end
+end