Class: ForemanDocker::Docker

Inherits:
ComputeResource
  • Object
show all
Defined in:
app/models/foreman_docker/docker.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.get_container(container) ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 11

def self.get_container(container)
  conn = container.compute_resource.docker_connection
  ::Docker::Container.get(container.uuid, {}, conn)
end

.model_name ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 7

def self.model_name
  ComputeResource.model_name
end

Instance Method Details

#api_version ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 109

def api_version
  ::Docker.version(docker_connection)
end

#authenticate! ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 113

def authenticate!
  ::Docker.authenticate!(credentials, docker_connection)
end

#available_images ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 36

def available_images
  ::Docker::Image.all({}, docker_connection)
end

#capabilities ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 16

def capabilities
  [:image]
end

#console(uuid) ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 99

def console(uuid)
  test_connection
  container = ::Docker::Container.get(uuid, {}, docker_connection)
  {
    :name       => container.info['Name'],
    'timestamp' => Time.now.utc,
    'output'    => container.logs(:stdout => true, :tail => 100)
  }
end

#create_container(args = {}) ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 79

def create_container(args = {})
  options = vm_instance_defaults.merge(args)
  logger.debug("Creating container with the following options: #{options.inspect}")
  docker_command do
    ::Docker::Container.create(options, docker_connection)
  end
end

#create_image(args = {}) ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 87

def create_image(args = {})
  logger.debug("Creating docker image with the following options: #{args.inspect}")
  docker_command do
    ::Docker::Image.create(args, credentials, docker_connection)
  end
end

#docker_connection ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 127

def docker_connection
  @docker_connection ||= ::Docker::Connection.new(url, credentials)
end

#exist?(name) ⇒ Boolean 



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# File 'app/models/foreman_docker/docker.rb', line 51

def exist?(name)
  ::Docker::Image.exist?(name, {}, docker_connection)
end

#image(id) ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 55

def image(id)
  ::Docker::Image.get(id, {}, docker_connection)
end

#local_images(filter = '') ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 40

def local_images(filter = '')
  ::Docker::Image.all({ 'filter' => filter }, docker_connection)
end

#max_cpu_count ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 32

def max_cpu_count
  ::Docker.info['NCPU'] || 1
end

#max_memory ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 28

def max_memory
  16 * 1024 * 1024 * 1024
end

#provided_attributes ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 24

def provided_attributes
  super.merge(:mac => :mac)
end

#provider_friendly_name ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 75

def provider_friendly_name
  'Docker'
end

#search(term = '') ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 71

def search(term = '')
  client.images.image_search(:term => term)
end

#supports_update? ⇒ Boolean 



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# File 'app/models/foreman_docker/docker.rb', line 20

def supports_update?
  false
end

#tags(image_name) ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 59

def tags(image_name)
  if exist?(image_name)
    tags_for_local_image(local_images(image_name).first)
  else
    # If image is not found in the compute resource, get the tags from the Hub
    hub_api_url = "https://index.docker.io/v1/repositories/#{image_name}/tags"
    JSON.parse(URI.parse(hub_api_url).read).map do |tag|
      tag['name']
    end
  end
end

#tags_for_local_image(image) ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 44

def tags_for_local_image(image)
  image.info['RepoTags'].map do |image_tag|
    _, tag = image_tag.split(':')
    tag
  end
end

#test_connection(options = {}) ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 117

def test_connection(options = {})
  super
  api_version
  credentials.empty? ? true : authenticate!
# This should only rescue Fog::Errors, but Fog returns all kinds of errors...
rescue => e
  errors[:base] << e.message
  false
end

#vm_instance_defaults ⇒ Object 



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# File 'app/models/foreman_docker/docker.rb', line 94

def vm_instance_defaults
  ActiveSupport::HashWithIndifferentAccess.new('name' => "foreman_#{Time.now.to_i}",
                                               'Cmd' => ['/bin/bash'])
end