Module: Dockerun::CommandHelper::DockerContainerHelper

Includes:
DockerCommandFactoryHelper
Included in:
Dockerun::Command::Run, Dockerun::Command::RunNewContainer, Dockerun::Command::RunNewImage
Defined in:
lib/dockerun/docker_container_helper.rb

Defined Under Namespace

Classes: DockerContainerBuildFailed, DockerContainerStartFailed

Instance Method Summary collapse

Methods included from DockerCommandFactoryHelper

#dcFact

Instance Method Details

#run_docker_container(image_name, container_name, &block) ⇒ Object

Raises:



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# File 'lib/dockerun/docker_container_helper.rb', line 12

def run_docker_container(image_name, container_name, &block)
     
  raise DockerContainerBuildFailed, "block is required" if not block
  raise DockerContainerBuildFailed, "Image name is required" if is_empty?(image_name)

  reuse = nil

  if is_empty?(container_name)
    container_name = block.call(:new_container_name)
    loop do
      st, _ = is_container_exist?(container_name)
      if st
        reuse = block.call(:container_name_exist, container_name)
        break if reuse
        container_name = block.call(:new_container_name)
      else
        break
      end
    end

  else
    st, _ = is_container_exist?(container_name)
    if st
      reuse = true
    else
      # if not found shall drop into the next block's else clause 
    end
  end

  if reuse == true
   
    res = dcFact.find_running_container(container_name).run
    if not res.failed? and res.is_out_stream_empty?
      # not running
      ress = dcFact.start_container(container_name).run
      raise DockerContainerStartFailed, "Failed to start container '#{container_name}'. Error was : #{ress.err_stream}" if ress.failed?
    end

    ucmd = cli.ask("Command to be run inside the container. Empty to attach to existing session : ", value: "/bin/bash")
    if is_empty?(ucmd)
      dcFact.attach_container(container_name).run
    else
      dcFact.run_command_in_running_container(container_name, ucmd, tty: true, interactive: true).run
    end

  else

    reqVolMap = block.call(:volume_mapping_required?)
    mount = []
    if reqVolMap

      loop do

        src = block.call(:source_prompt)
        dest = block.call(:destination_prompt, src)
        mount << { src => dest }
        block.call(:add_mount_to_container, container_name, mount.last)
        repeat = block.call(:add_more_volume_mapping?)
        break if not repeat

      end

    end

    dcFact.create_container_from_image(image_name, interactive: true, tty: true, container_name: container_name, mount: mount).run

  end

  container_name

end