Class: DockerApp::Builder::Packer

Inherits:
Object
  • Object
show all
Defined in:
lib/docker_app/builder/packer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(_settings) ⇒ Packer

Returns a new instance of Packer.



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# File 'lib/docker_app/builder/packer.rb', line 21

def initialize(_settings)
  self.server = _settings

end

Instance Attribute Details

#server ⇒ Object

Returns the value of attribute server.



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# File 'lib/docker_app/builder/packer.rb', line 5

def server
  @server
end

Instance Method Details

#build ⇒ Object 



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# File 'lib/docker_app/builder/packer.rb', line 26

def build
  # config json
  save_packer_config

  DockerApp::Command.cmd %Q(packer build #{filename_config} )

end

#build_packer_config ⇒ Object 



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# File 'lib/docker_app/builder/packer.rb', line 50

def build_packer_config
  res = {}

  res['variables'] = {}

  res['builders'] = []

  bi = settings.properties['build']['base_image']
  base_image_name = "#{bi['name']}:#{bi['tag']}"
  builder1 = {
      pull: false,
      type: "docker",
      image: base_image_name,
      commit: true
  }

  # changes
  entrypoint = settings.properties['build']['entrypoint']
  if entrypoint
    builder1['changes'] ||= []
    builder1['changes'] << "ENTRYPOINT #{entrypoint}"
  end

  res['builders'] << builder1

  #
  recipe_name = settings['build']['packer']['recipe_name'] || 'build'
  cookbook_paths = settings['build']['packer']['cookbook_paths'] || []
  cookbook_paths << settings.dir_cookbooks

  res["provisioners"] = [
      {
          type: "chef-solo",
          prevent_sudo: true,
          cookbook_paths: cookbook_paths,
          json: settings.properties['attributes'],
          run_list: ["recipe[#{settings.name}::#{recipe_name}]"]
    },
  ]

  # tag image
  res["post-processors"] = [
      {
        repository: "#{settings.image_name}",
        type: "docker-tag"
      }
    ]

  res
end

#filename_config ⇒ Object 



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# File 'lib/docker_app/builder/packer.rb', line 46

def filename_config
  File.join(Config.root_path, 'temp', "packer-#{settings.name}.json")
end

#save_packer_config ⇒ Object

helpers



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# File 'lib/docker_app/builder/packer.rb', line 35

def save_packer_config
  require 'json'
  filename = filename_config
  FileUtils.mkdir_p(File.dirname(filename))
  File.open(filename,"w+") do |f|
    f.write(build_packer_config.to_json)
  end

  true
end

#settings ⇒ Object 



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# File 'lib/docker_app/builder/packer.rb', line 16

def settings
  server
end