Module: Dockerun::CommandHelper::DockerImageHelper

Includes:
Dockerun::CliHelper::CliPrompt, DockerCommandFactoryHelper
Included in:
Dockerun::Command::Run, Dockerun::Command::RunNewImage
Defined in:
lib/dockerun/docker_image_helper.rb

Defined Under Namespace

Classes: DockerImageBuildFailed, DockerImageDeleteFailed, DockerfileNotExist

Instance Method Summary collapse

Methods included from DockerCommandFactoryHelper

#dcFact

Methods included from Dockerun::CliHelper::CliPrompt

#cli

Instance Method Details

#build_image_if_not_exist(name, &block) ⇒ Object

Raises:



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# File 'lib/dockerun/docker_image_helper.rb', line 37

def build_image_if_not_exist(name, &block)
 
  raise DockerImageBuildFailed, "block is required" if not block

  if is_empty?(name)
    reuse = false
    loop do
      name = block.call(:new_image_name)
      break if not is_image_existed?(name)
      reuse, name = block.call(:image_exist, name)
      break if reuse
    end

    if reuse
      
    else
      dockerfile = load_dockerfile(Dir.getwd)
      build_docker_image(name, dockerfile: dockerfile)
    end

  else

      if not is_image_existed?(name)
        dockerfile = load_dockerfile(Dir.getwd)
        build_docker_image(name, dockerfile: dockerfile)
      end

  end

  name

end

#load_dockerfile(root = Dir.getwd) ⇒ Object 



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# File 'lib/dockerun/docker_image_helper.rb', line 15

def load_dockerfile(root = Dir.getwd)

  df = Dir.glob(File.join(root,"Dockerfile*"))
  if df.length == 0
    raise DockerfileNotExist, "Dockerfile not yet available. Please create one or run init first."
  end

  selectedDf = nil
  if df.length > 1
    selectedDf = cli.select("Please select one of the Dockerfile to proceed: ") do |m|
      df.each do |d|
        m.choice File.basename(d), d
      end
    end
  else
    selectedDf = df.first
  end

  selectedDf
    
end