Deploy Rails + Puma Service Ubuntu 16

puma.nginx.conf

# store /etc/nginx/site-enable/app.conf
# systemctl restart nginx

upstream app {
  server unix:/var/run/puma_app.sock fail_timeout=0;
}


server {
  listen 80;
  server_name _;
  root /root/app/public;

  client_max_body_size 4G;
  keepalive_timeout 10;
  large_client_header_buffers 4 32k;
  access_log off;
  error_log off;

  add_header X-Powered-By "Carlos Montalvo (http://www.zetanova.com)";

  if ($request_method !~ ^(GET|HEAD|PUT|POST|DELETE|OPTIONS)$ ){
    return 405;
  }

  location = /favicon.ico {
    expires max;
    add_header Cache-Control public;
  }


  # disable web task
  if (-f $document_root/maintenance.html) {
    rewrite  ^(.*)$  /maintenance.html last;
    break;
  }

  location / {

    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;

    error_page 500 504 /500.html;
    error_page 502 /502.html;
    error_page 503 /503.html;

    if (-f $request_filename) {
      expires max;
      break;
    }

    if (-f $request_filename.html) {
      rewrite (.*) $1.html break;
    }

    if (!-f $request_filename) {
      proxy_pass  http://app;
      break;
    }
  }

	location /cable {
   proxy_pass http://app;
   proxy_http_version 1.1;
   proxy_set_header Upgrade $http_upgrade;
   proxy_set_header Connection "upgrade";
  }

  location ~ \.php$ {
      deny  all;
    }

}

puma.rb

# store config/puma.rb
# Puma can serve each request in a thread from an internal thread pool.
# The `threads` method setting takes two numbers a minimum and maximum.
# Any libraries that use thread pools should be configured to match
# the maximum value specified for Puma. Default is set to 5 threads for minimum
# and maximum, this matches the default thread size of Active Record.
#
threads_count = ENV.fetch("RAILS_MAX_THREADS") { 3 }.to_i
threads threads_count, threads_count

# Specifies the `port` that Puma will listen on to receive requests, default is 3000.
#
#port        ENV.fetch("PORT") { 3000 }

# Specifies the `environment` that Puma will run in.
#
environment ENV.fetch("RAILS_ENV") { "development" }



app = "app"

app_path = "/var/run"

pidfile "#{app_path}/puma_#{app}.pid"
state_path "#{app_path}/puma_#{app}.state"

stdout_redirect "/root/#{app}/log/puma_#{app}.log", "/root/#{app}/log/puma_err_#{app}.log"
bind "unix:#{app_path}/puma_#{app}.sock"


workers 2

activate_control_app "unix:#{app_path}/pumactl_#{app}.sock"

# Specifies the number of `workers` to boot in clustered mode.
# Workers are forked webserver processes. If using threads and workers together
# the concurrency of the application would be max `threads` * `workers`.
# Workers do not work on JRuby or Windows (both of which do not support
# processes).
#
# workers ENV.fetch("WEB_CONCURRENCY") { 2 }

# Use the `preload_app!` method when specifying a `workers` number.
# This directive tells Puma to first boot the application and load code
# before forking the application. This takes advantage of Copy On Write
# process behavior so workers use less memory. If you use this option
# you need to make sure to reconnect any threads in the `on_worker_boot`
# block.
#
# preload_app!

# The code in the `on_worker_boot` will be called if you are using
# clustered mode by specifying a number of `workers`. After each worker
# process is booted this block will be run, if you are using `preload_app!`
# option you will want to use this block to reconnect to any threads
# or connections that may have been created at application boot, Ruby
# cannot share connections between processes.
#
# on_worker_boot do
#   ActiveRecord::Base.establish_connection if defined?(ActiveRecord)
# end

# Allow puma to be restarted by `rails restart` command.
plugin :tmp_restart

puma.service

#store /lib/systemd/system/puma.service
# systemctl enable puma.service
# systemctl start puma.service
# systemctl status puma.service

[Unit]
Description=Puma HTTP Server
After=network.target

[Service]
# Foreground process (do not use --daemon in ExecStart or config.rb)
Type=simple

# Preferably configure a non-privileged user
User=root
Group=root

# Specify the path to your puma application root
WorkingDirectory=/root/app

# Helpful for debugging socket activation, etc.
#Environment=PUMA_DEBUG=1
#EnvironmentFile=/var/www/my-website.com/.env
##/root/.nvm/versions/node/v4.8.7/bin/node


# The command to start Puma with RVM
ExecStart=/usr/local/rvm/wrappers/ruby-2.3.5/bundle exec puma -C /root/app/config/puma.rb
Restart=always

[Install]
WantedBy=multi-user.target