rackとpumaに関して

Rack仕様で実装したアプリはRack対応のサーバで運用することができる。

使い方

$ bundle install --path=./vendor/bundler
$ bundle exec ruby 01_rack_app.rb
$ bundle exec rackup 02_config.ru
$ bundle exec rackup 02_config.ru -s WEBrick -o 0.0.0.0 -p 8000
$ bundle exec rackup 02_config.ru -s puma -o 0.0.0.0 -p 8000
$ bundle exec pumactl -F 03_config.rb start                                                   
Puma starting in single mode...
* Version 3.9.1 (ruby 2.2.4-p230), codename: Private Caller
* Min threads: 0, max threads: 16
* Environment: development
* Daemonizing...
$ ls /tmp/ | grep puma
puma-status-1499925598625-15294
puma_sample.pid
puma_sample.state
$ bundle exec pumactl -F 03_config.rb status                                                  
Puma is started
$ bundle exec pumactl -F 03_config.rb stop                                                    
Command stop sent success
$ ls /tmp/ | grep puma
puma_sample.state

Gemfile

source 'https://rubygems.org'

gem 'puma'
gem 'rack'

01_rack_app.rb

require 'rack'
require 'rack/handler/puma'
app = Proc.new do |env|
  ['200', {'Content-Type' => 'text/html'}, ['hello rack']]
end
# Rack::Handler::WEBrick.run app, Port:8000
Rack::Handler::Puma.run app, Port:8000

02_config.ru

app = Proc.new do |env|
  ['200', {'Content-Type' => 'text/html'}, ['hello rackup']]
end

run app

03_config.rb

require "puma"

app do |env|
  [200, { 'Content-Type' => 'text/plain' }, ["hello pumactl"]]
end

daemonize true
port 8000
pidfile "/tmp/puma_sample.pid"
state_path "/tmp/puma_sample.state"

activate_control_app('auto', auth_token: "12345")