Class: InstanceAgent::Plugins::CodeDeployPlugin::Installer

Inherits:
Object
  • Object
show all
Defined in:
lib/instance_agent/plugins/codedeploy/installer.rb

Overview

Manages install and cleanup files. Also generates and executes install instructions based on the files section of the application specification file.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ Installer

Returns a new instance of Installer.



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# File 'lib/instance_agent/plugins/codedeploy/installer.rb', line 11

def initialize(opts = {})
  raise "the deployment_archive_dir option is required" if
  opts[:deployment_archive_dir].nil?
  raise "the deployment_instructions_dir option is required" if
  opts[:deployment_instructions_dir].nil?

  @deployment_archive_dir = opts[:deployment_archive_dir]
  @deployment_instructions_dir = opts[:deployment_instructions_dir]
end

Instance Attribute Details

#deployment_archive_dir ⇒ Object (readonly)

Returns the value of attribute deployment_archive_dir.



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# File 'lib/instance_agent/plugins/codedeploy/installer.rb', line 9

def deployment_archive_dir
  @deployment_archive_dir
end

#deployment_instructions_dir ⇒ Object (readonly)

Returns the value of attribute deployment_instructions_dir.



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# File 'lib/instance_agent/plugins/codedeploy/installer.rb', line 10

def deployment_instructions_dir
  @deployment_instructions_dir
end

Instance Method Details

#install(deployment_group_id, application_specification) ⇒ Object 



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# File 'lib/instance_agent/plugins/codedeploy/installer.rb', line 21

def install(deployment_group_id, application_specification)
  cleanup_file = File.join(deployment_instructions_dir, "#{deployment_group_id}-cleanup")

  if File.exists?(cleanup_file)
    commands = InstallInstruction.parse_remove_commands(File.read(cleanup_file))
    commands.each do |cmd|
      cmd.execute
    end

    commands.clear
    FileUtils.rm(cleanup_file)
  end

  instructions = generate_instructions(application_specification)

  install_file = File.join(deployment_instructions_dir, "#{deployment_group_id}-install.json")
  File.open(install_file, "w") do |f|
    f.write(instructions.to_json)
  end

  File.open(cleanup_file, "w") do |f|
    instructions.command_array.each do |cmd|
      cmd.execute(f)
    end
  end

  #Unlink references to the CommandBuilder instance that was yielded to the Proc object(code block) in generate_instructions()
  instructions.cleanup
  instructions = nil
end