Class: SmartMachine::Apps::Manager

Inherits:
Base
  • Object
show all
Defined in:
lib/smart_machine/apps/manager.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#machine_has_engine_installed?, #platform_on_machine?, #user_bash

Methods included from Logger

configure_logger_for, included, #logger, logger_for

Constructor Details

#initialize(appname:, appversion: nil) ⇒ Manager

Returns a new instance of Manager.



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# File 'lib/smart_machine/apps/manager.rb', line 6

def initialize(appname:, appversion: nil)
  @appname = appname
  @appversion = appversion

  @home_dir = File.expand_path('~')
  @container_path = "#{@home_dir}/machine/apps/containers/#{@appname}"

  # Checking if given appname exists
  repository_path = "#{@home_dir}/machine/apps/repositories/#{@appname}.git"
  raise "App with name '#{@appname}' does not exist. Please provide a valid appname." unless Dir.exist?(repository_path)
end

Instance Attribute Details

#appname ⇒ Object

Returns the value of attribute appname.



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# File 'lib/smart_machine/apps/manager.rb', line 4

def appname
  @appname
end

#appversion ⇒ Object

Returns the value of attribute appversion.



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# File 'lib/smart_machine/apps/manager.rb', line 4

def appversion
  @appversion
end

Instance Method Details

#deploy ⇒ Object 



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# File 'lib/smart_machine/apps/manager.rb', line 18

def deploy
  logger.formatter = proc do |severity, datetime, progname, message|
    severity_text = { "DEBUG" => "\u{1f527} #{severity}:", "INFO" => " \u{276f}", "WARN" => "\u{2757} #{severity}:",
                     "ERROR" => "\u{274c} #{severity}:", "FATAL" => "\u{2b55} #{severity}:", "UNKNOWN" => "\u{2753} #{severity}:"
                    }
    "\t\t\t\t#{severity_text[severity]} #{message}\n"
  end

  Dir.chdir("#{@container_path}/releases") do
    # Setting app version to latest if not set.
    unless @appversion
      versions = Dir.glob('*').select { |f| File.directory? f }.sort
      @appversion = versions.last
    end

    buildpacker = SmartMachine::Buildpackers::Rails.new(appname: @appname, appversion: @appversion)
    if buildpacker.package
      if release
        sleep 7
        clean
        logger.info "Launched Application ... Success."
        exit 10
      else
        raise "Error: Could not release the application."
      end
    else
      raise "Error: Could not package the application."
    end
  end

  logger.formatter = nil
end

#env_vars ⇒ Object 



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# File 'lib/smart_machine/apps/manager.rb', line 84

def env_vars
  @env_vars ||= load_env_vars
end

#ps_scaler(formation:) ⇒ Object 



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# File 'lib/smart_machine/apps/manager.rb', line 51

def ps_scaler(formation:)
  Dir.chdir("#{@container_path}/releases") do
    # Setting app version to latest if not set.
    unless @appversion
      versions = Dir.glob('*').select { |f| File.directory? f }.sort
      @appversion = versions.last
    end

    formation.each do |proc_name, final_count|
      config = processes.dig(proc_name.to_sym)
      raise "no config found for the #{proc_name} process." unless config.present?

      current_count = `docker ps -aq --filter name="#{@appname}-#{@appversion}-#{proc_name}-" | wc -l`

      final_count = final_count.to_i
      current_count = current_count.to_i

      if final_count > current_count
        ((current_count + 1)..final_count).each do |index|
          containerize_process!(name: "#{@appname}-#{@appversion}-#{proc_name}-#{index}", config: config)
        end
      elsif final_count < current_count
        ((final_count + 1)..current_count).each do |index|
          container = SmartMachine::Apps::Container.new(name: "#{@appname}-#{@appversion}-#{proc_name}-#{index}", appname: @appname, appversion: @appversion)
          container.stop!
        end
      else
        # No Operation. Don't do anything.
      end
    end
  end
end