Method: Beaker::Docker#cleanup

Defined in:

lib/beaker/hypervisor/docker.rb

#cleanup ⇒ Object

# File 'lib/beaker/hypervisor/docker.rb', line 438

def cleanup
  @logger.notify "Cleaning up docker"
  @hosts.each do |host|
    # leave the container running if docker_preserve_container is set
    # setting docker_preserve_container also implies docker_preserve_image
    # is set, since you can't delete an image that's the base of a running
    # container
    unless host['docker_preserve_container']
      container = find_container(host)
      if container
        @logger.debug("stop container #{container.id}")
        begin
          container.kill
          sleep 2 # avoid a race condition where the root FS can't unmount
        rescue Excon::Errors::ClientError => e
          @logger.warn("stop of container #{container.id} failed: #{e.response.body}")
        end
        @logger.debug("delete container #{container.id}")
        begin
          container.delete(force: true)
        rescue Excon::Errors::ClientError => e
          @logger.warn("deletion of container #{container.id} failed: #{e.response.body}")
        end
      end

      # Do not remove the image if docker_preserve_image is set to true, otherwise remove it
      unless host['docker_preserve_image']
        image_id = host['docker_image_id']

        if image_id
          @logger.debug("deleting image #{image_id}")
          begin
            ::Docker::Image.remove(image_id)
          rescue Excon::Errors::ClientError => e
            @logger.warn("deletion of image #{image_id} failed: #{e.response.body}")
          rescue ::Docker::Error::DockerError => e
            @logger.warn("deletion of image #{image_id} caused internal Docker error: #{e.message}")
          end
        else
          @logger.warn("Intended to delete the host's docker image, but host['docker_image_id'] was not set")
        end
      end
    end
  end
end