Module: Nginx::Puma

Defined in:
lib/nginx/puma.rb,
lib/nginx/puma/version.rb,
lib/nginx/puma/patch/puma/dsl.rb

Defined Under Namespace

Modules: Patch Classes: SocketFileName

Constant Summary collapse

VERSION = 
"0.1.2"

Class Method Summary collapse

Class Method Details

.base_dir ⇒ Object 



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# File 'lib/nginx/puma.rb', line 132

def base_dir
  "/tmp"
end

.bind_puma_to(sock) ⇒ Object 



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# File 'lib/nginx/puma.rb', line 118

def bind_puma_to sock
  binds = puma_binds
  binds << sock
  puma_binds = binds.uniq
end

.conf_file ⇒ Object 



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# File 'lib/nginx/puma.rb', line 138

def conf_file
  "nginx_#{instance}.conf"
end

.create_config ⇒ Object 



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# File 'lib/nginx/puma.rb', line 56

def create_config
  @config = <<-CONFIG.strip_heredoc
  pid #{pid_file};
  events {}
  http {
    upstream app {
      server #{puma_sock.to_nginx} fail_timeout=0;
    }
    server {
      #{listeners}
      client_max_body_size 1G;
      keepalive_timeout 5;
      server_tokens off;
      access_log #{base_dir}/app_access.log;
      error_log #{base_dir}/app_error.log;
      root #{public_path};
      try_files $uri/index.html $uri.html $uri @app;
      location @app {
        proxy_pass http://app;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
      }
      location ~ ^/(assets)/ {
        root #{public_path};
        gzip_static on;
        expires max;
        add_header Cache-Control public;
        access_log /dev/null;
      }
    }
  }
  CONFIG
  @config =  @config.split("\n").map{|x|x.gsub(/^[ ]+/,'')}.join(' ').gsub(" }","}").gsub("{ ","{").gsub("; ",";")
  File.write "#{base_dir}/#{conf_file}",@config
end

.ensure_shutdown ⇒ Object 



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# File 'lib/nginx/puma.rb', line 37

def ensure_shutdown
  at_exit do
    if File.exists? "#{base_dir}/#{pid_file}"
      pid = File.read("#{base_dir}/#{pid_file}").strip.to_i
      Process.kill "TERM", pid
      File.unlink "#{base_dir}/#{pid_file}" rescue nil
    end
    if File.exists? "#{base_dir}/#{conf_file}"
      File.unlink "#{base_dir}/#{conf_file}" rescue nil
    end
  end
end

.hijack_puma_binding ⇒ Object 



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# File 'lib/nginx/puma.rb', line 49

def hijack_puma_binding
  @listens = puma_listeners_of_type(:tcp).map do |bind|
    bind.sub(/:\/\//,':')
  end
  unbind_puma_from :tcp
  bind_puma_to puma_sock.to_puma
end

.instance ⇒ Object 



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# File 'lib/nginx/puma.rb', line 23

def instance
  @instance ||= SecureRandom.hex(6)
end

.listeners ⇒ Object 



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# File 'lib/nginx/puma.rb', line 101

def listeners
  listens.collect do |listen|
    "listen #{listen} default;"
  end.join("\n")
end

.listens ⇒ Object 



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# File 'lib/nginx/puma.rb', line 98

def listens
  @listens.empty? ? ['0.0.0.0:9292'] : @listens
end

.pid_file ⇒ Object 



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# File 'lib/nginx/puma.rb', line 135

def pid_file
  "nginx_#{instance}.pid"
end

.public_path ⇒ Object 



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# File 'lib/nginx/puma.rb', line 95

def public_path
  Rails.root.join('public').to_s rescue File.expand_path("./public")
end

.puma_binds ⇒ Object 



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# File 'lib/nginx/puma.rb', line 123

def puma_binds
  ::Puma.cli_config.options[:binds]
end

.puma_listeners_of_type(type) ⇒ Object 



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# File 'lib/nginx/puma.rb', line 106

def puma_listeners_of_type type
  puma_binds.select do |bind|
    bind =~ /^#{type}/
  end
end

.puma_sock ⇒ Object 



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# File 'lib/nginx/puma.rb', line 129

def puma_sock
  @socket_file_name ||= SocketFileName.new "/tmp/puma_#{instance}.sock"
end

.run ⇒ Object 



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# File 'lib/nginx/puma.rb', line 26

def run
  use :Puma
  ensure_shutdown
  hijack_puma_binding
  create_config
  run_nginx
  puts "Running NGinx"
end

.run_nginx ⇒ Object 



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# File 'lib/nginx/puma.rb', line 92

def run_nginx
  `#{start_command}`
end

.start_command ⇒ Object 



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# File 'lib/nginx/puma.rb', line 126

def start_command
  "nginx -p #{base_dir} -c #{conf_file}&"
end

.unbind_puma_from(type) ⇒ Object 



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# File 'lib/nginx/puma.rb', line 111

def unbind_puma_from type
  binds = puma_binds
  binds = binds.reject do |bind|
    bind =~ /^#{type}/
  end.uniq
  puma_binds = binds
end

.use(const) ⇒ Object

Raises:

  • (RuntimeError) 


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# File 'lib/nginx/puma.rb', line 34

def use const
  raise RuntimeError.new unless Object.const_defined? const
end