Class: Procsd::Generator

Inherits:
Object
  • Object
show all
Defined in:
lib/procsd/generator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config, options) ⇒ Generator

Returns a new instance of Generator.



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# File 'lib/procsd/generator.rb', line 7

def initialize(config, options)
  @config = config
  @options = options
  @app_name = @config[:app]
  @target_name = "#{app_name}.target"
end

Instance Attribute Details

#app_name ⇒ Object (readonly)

Returns the value of attribute app_name.



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# File 'lib/procsd/generator.rb', line 5

def app_name
  @app_name
end

#target_name ⇒ Object (readonly)

Returns the value of attribute target_name.



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# File 'lib/procsd/generator.rb', line 5

def target_name
  @target_name
end

Instance Method Details

#generate_nginx_conf(save: false) ⇒ Object 



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# File 'lib/procsd/generator.rb', line 70

def generate_nginx_conf(save: false)
  root_path = File.join(@options["dir"], "public")
  content = generate_template("nginx", {
    port: @config[:environment]["PORT"],
    server_name: @config[:nginx]["server_name"],
    root: root_path,
    error_500: File.exist?(File.join root_path, "500.html"),
    error_404: File.exist?(File.join root_path, "404.html"),
    error_422: File.exist?(File.join root_path, "422.html")
  })

  if save
    config_path = File.join(NGINX_DIR, "sites-available", app_name)
    puts "Creating Nginx config (#{config_path})..."
    write_file!(config_path, content)
    puts "Link Nginx config file to the sites-enabled folder..."
    system "sudo", "ln", "-nfs", config_path, File.join(NGINX_DIR, "sites-enabled")
  else
    content
  end
end

#generate_sudoers(user, has_reload:, save: false) ⇒ Object 



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# File 'lib/procsd/generator.rb', line 49

def generate_sudoers(user, has_reload:, save: false)
  systemctl_path = `which systemctl`.strip
  commands = []
  %w(start stop restart).each { |cmd| commands << "#{systemctl_path} #{cmd} #{target_name}" }
  commands << "#{systemctl_path} reload-or-restart #{app_name}-\\* --all" if has_reload
  content = "#{user} ALL=NOPASSWD: #{commands.join(', ')}"

  if save
    puts "Creating sudoers rule file in the sudoers.d directory (#{SUDOERS_DIR})..."
    temp_path = "/tmp/#{app_name}"
    dest_path = "#{SUDOERS_DIR}/#{app_name}"

    File.open(temp_path, "w") { |f| f.puts content }
    system "sudo", "chown", "root:root", temp_path
    system "sudo", "chmod", "0440", temp_path
    system "sudo", "mv", temp_path, dest_path
  else
    content
  end
end

#generate_units(save: false) ⇒ Object 



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# File 'lib/procsd/generator.rb', line 14

def generate_units(save: false)
  services = {}
  @config[:processes].each do |name, values|
    commands = values["commands"]
    size = values["size"]
    content = generate_template("service", @options.merge(
      "target_name" => target_name,
      "commands" => commands,
      "environment" => @config[:environment]
    ))

    services[name] = { content: content, size: size }
  end

  if save
    puts "Creating app units files in the systemd directory (#{DEFAULT_SYSTEMD_DIR})..."
    wants = []
    services.each do |service_name, values|
      values[:size].times do |i|
        unit_name = "#{app_name}-#{service_name}.#{i + 1}.service"
        wants << unit_name
        write_file!(File.join(@config[:systemd_dir], unit_name), values[:content])
      end
    end

    target_content = generate_template("target", {
      "app" => app_name,
      "wants" => wants.join(" ")
    })
    write_file!(File.join(@config[:systemd_dir], target_name), target_content)
  else
    services
  end
end