Class: InstanceAgent::CodeDeployPlugin::Installer

Inherits:
Object
  • Object
show all
Defined in:
lib/instance_agent/codedeploy_plugin/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.



14
15
16
17
18
19
20
21
22
 
# File 'lib/instance_agent/codedeploy_plugin/installer.rb', line 14

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.



11
12
13
 
# File 'lib/instance_agent/codedeploy_plugin/installer.rb', line 11

def deployment_archive_dir
  @deployment_archive_dir
end

#deployment_instructions_dir ⇒ Object (readonly)

Returns the value of attribute deployment_instructions_dir.



12
13
14
 
# File 'lib/instance_agent/codedeploy_plugin/installer.rb', line 12

def deployment_instructions_dir
  @deployment_instructions_dir
end

Instance Method Details

#install(deployment_group_id, application_specification) ⇒ Object 



24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
 
# File 'lib/instance_agent/codedeploy_plugin/installer.rb', line 24

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

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

    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.each do |cmd|
      cmd.execute(f)
    end
  end
end