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[openstack|image] Added image service, model and request

This commit is contained in:
Philip Mark Deazeta 2012-02-23 18:57:48 +08:00 committed by Nelvin Driz
parent fc88380f4a
commit c122d622c0
8 changed files with 318 additions and 0 deletions

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@ -14,6 +14,7 @@ require 'fog/terremark'
require 'fog/compute' require 'fog/compute'
require 'fog/identity' require 'fog/identity'
require 'fog/image'
require 'fog/cdn' require 'fog/cdn'
require 'fog/dns' require 'fog/dns'
require 'fog/storage' require 'fog/storage'

24
lib/fog/image.rb Normal file
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module Fog
module Image
def self.[](provider)
self.new(:provider => provider)
end
def self.new(attributes)
attributes = attributes.dup # Prevent delete from having side effects
case provider = attributes.delete(:provider).to_s.downcase.to_sym
when :openstack
require 'fog/openstack/image'
Fog::Image::OpenStack.new(attributes)
else
raise ArgumentError.new("#{provider} has no identity service")
end
end
def self.providers
Fog.services[:image]
end
end
end

146
lib/fog/openstack/image.rb Normal file
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require File.expand_path(File.join(File.dirname(__FILE__), '..', 'openstack'))
require 'fog/openstack'
module Fog
module Image
class OpenStack < Fog::Service
requires :openstack_api_key, :openstack_username, :openstack_auth_url
recognizes :openstack_auth_token, :openstack_management_url, :persistent,
:openstack_compute_service_name, :openstack_tenant
model_path 'fog/openstack/models/image'
model :image
collection :images
request_path 'fog/openstack/requests/image'
request :list_public_images
request :list_public_images_detailed
request :get_image_by_id
class Mock
def self.data
@data ||= Hash.new do |hash, key|
hash[key] = {
:users => {},
:tenants => {}
}
end
end
def self.reset
@data = nil
end
def initialize(options={})
require 'multi_json'
@openstack_username = options[:openstack_username]
end
def data
self.class.data[@openstack_username]
end
def reset_data
self.class.data.delete(@openstack_username)
end
end
class Real
def initialize(options={})
require 'multi_json'
@openstack_api_key = options[:openstack_api_key]
@openstack_username = options[:openstack_username]
@openstack_auth_uri = URI.parse(options[:openstack_auth_url])
@openstack_auth_token = options[:openstack_auth_token]
@openstack_management_url = options[:openstack_management_url]
@openstack_must_reauthenticate = false
@openstack_compute_service_name = options[:openstack_compute_service_name] || ['image']
@connection_options = options[:connection_options] || {}
authenticate
@persistent = options[:persistent] || false
@connection = Fog::Connection.new("#{@scheme}://#{@host}:#{@port}", @persistent, @connection_options)
end
def reload
@connection.reset
end
def request(params)
begin
response = @connection.request(params.merge({
:headers => {
'Content-Type' => 'application/json',
'X-Auth-Token' => @auth_token
}.merge!(params[:headers] || {}),
:host => @host,
:path => "#{@path}/#{params[:path]}"#,
# Causes errors for some requests like tenants?limit=1
# :query => ('ignore_awful_caching' << Time.now.to_i.to_s)
}))
rescue Excon::Errors::Unauthorized => error
if error.response.body != 'Bad username or password' # token expiration
@openstack_must_reauthenticate = true
authenticate
retry
else # bad credentials
raise error
end
rescue Excon::Errors::HTTPStatusError => error
raise case error
when Excon::Errors::NotFound
Fog::Compute::OpenStack::NotFound.slurp(error)
else
error
end
end
unless response.body.empty?
response.body = MultiJson.decode(response.body)
end
response
end
private
def authenticate
if @openstack_must_reauthenticate || @openstack_auth_token.nil?
options = {
:openstack_api_key => @openstack_api_key,
:openstack_username => @openstack_username,
:openstack_auth_uri => @openstack_auth_uri,
:openstack_compute_service_name => @openstack_compute_service_name,
:openstack_endpoint_type => 'adminURL'
}
credentials = Fog::OpenStack.authenticate_v2(options, @connection_options)
@openstack_must_reauthenticate = false
@auth_token = credentials[:token]
@openstack_management_url = credentials[:server_management_url]
uri = URI.parse(@openstack_management_url)
else
@auth_token = @openstack_auth_token
uri = URI.parse(@openstack_management_url)
end
@host = uri.host
@path = uri.path
@path.sub!(/\/$/, '')
@port = uri.port
@scheme = uri.scheme
true
end
end
end
end
end

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require 'fog/core/model'
module Fog
module Image
class OpenStack
class Image < Fog::Model
identity :id
attribute :name
attribute :size
attribute :disk_format
attribute :container_format
attribute :id
attribute :checksum
end
end
end
end

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require 'fog/core/collection'
require 'fog/openstack/models/image/image'
module Fog
module Image
class OpenStack
class Images < Fog::Collection
model Fog::Image::OpenStack::Image
def all
load(connection.list_public_images.body['images'])
end
end
end
end
end

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module Fog
module Image
class OpenStack
class Real
def get_image_by_id(image_id)
request(
:expects => [200, 204],
:method => 'GET',
:path => "images/#{image_id}"
)
end
end # class Real
class Mock
def get_image_by_id(image_id)
response = Excon::Response.new
response.status = [200, 204][rand(1)]
response.body = {
"images"=>[{
"name"=>"mock-image-name",
"size"=>25165824,
"disk_format"=>"ami",
"container_format"=>"ami",
"id"=>"0e09fbd6-43c5-448a-83e9-0d3d05f9747e",
"checksum"=>"2f81976cae15c16ef0010c51e3a6c163"}]
}
response
end # def list_tenants
end # class Mock
end # class OpenStack
end # module Identity
end # module Fog

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@ -0,0 +1,32 @@
module Fog
module Image
class OpenStack
class Real
def list_public_images
request(
:expects => [200, 204],
:method => 'GET',
:path => 'images'
)
end
end # class Real
class Mock
def list_public_images
response = Excon::Response.new
response.status = [200, 204][rand(1)]
response.body = {
"images"=>[{
"name"=>"mock-image-name",
"size"=>25165824,
"disk_format"=>"ami",
"container_format"=>"ami",
"id"=>"0e09fbd6-43c5-448a-83e9-0d3d05f9747e",
"checksum"=>"2f81976cae15c16ef0010c51e3a6c163"}]
}
response
end # def list_tenants
end # class Mock
end # class OpenStack
end # module Identity
end # module Fog

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module Fog
module Image
class OpenStack
class Real
def list_public_images_detailed
request(
:expects => [200, 204],
:method => 'GET',
:path => 'images/detail'
)
end
end # class Real
class Mock
def list_public_images_detailed
response = Excon::Response.new
response.status = [200, 204][rand(1)]
response.body = {"images"=>[{
"name"=>"cirros-0.3.0-x86_64-blank",
"size"=>25165824,
"min_disk"=>0,
"disk_format"=>"ami",
"created_at"=>"2012-02-21T07:32:26",
"container_format"=>"ami",
"deleted_at"=>nil,
"updated_at"=>"2012-02-21T07:32:29",
"checksum"=>"2f81976cae15c16ef0010c51e3a6c163",
"id"=>"0e09fbd6-43c5-448a-83e9-0d3d05f9747e",
"deleted"=>false,
"protected"=>false,
"is_public"=>true,
"status"=>"active",
"min_ram"=>0,
"owner"=>"ff528b20431645ebb5fa4b0a71ca002f",
"properties"=>{
"ramdisk_id"=>"b45aa128-cd36-4ad9-a026-1a1c2bfd8fdc",
"kernel_id"=>"cd28951e-e1c2-4bc5-95d3-f0495abbcdc5"}
}]
}
response
end # def list_tenants
end # class Mock
end # class OpenStack
end # module Identity
end # module Fog