Module: MiqOpenStackCommon
- Included in:
- MiqOpenStackImage, MiqOpenStackInstance
- Defined in:
- lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb
Instance Method Summary collapse
- #create_image_from_snapshot(snapshot_id, disk_format) ⇒ Object
- #disk_format(snapshot_image_id) ⇒ Object
- #disk_format_glance_v1(snapshot_image_id) ⇒ Object
- #disk_format_glance_v2(snapshot_image_id) ⇒ Object
- #download_image_data_glance_v2(image) ⇒ Object
- #get_image_file_common(image_id) ⇒ Object
- #get_image_file_glance_v1(image_id) ⇒ Object
- #get_image_file_glance_v2(image_id) ⇒ Object
- #get_image_metadata_snapshot_id(image) ⇒ Object
Instance Method Details
#create_image_from_snapshot(snapshot_id, disk_format) ⇒ Object
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# File 'lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb', line 57 def create_image_from_snapshot(snapshot_id, disk_format) snapshot = volume_service.snapshots.get(snapshot_id) = { :name => "Temp Volume from #{snapshot.name}", :size => snapshot.size, :snapshot_id => snapshot_id } volume = volume_service.volumes.new() volume.save while volume.status != 'available' sleep(10) volume = volume_service.volumes.get(volume.id) end response = volume_service.action(volume.id, 'os-volume_upload_image' => { :image_name => "Temp Image from #{snapshot.name}", :disk_format => disk_format}) image_id = response.body["os-volume_upload_image"]["image_id"] while image_service.images.get(image_id).status.downcase != 'active' sleep(10) end $log.debug "#{log_prefix}: Deleting temp volume #{volume.name} in #{volume.status} status" volume.destroy return image_service.images.get(image_id) rescue => ex $log.error "#{log_prefix}: Create image from Snapshot step raised error" $log.error ex end |
#disk_format(snapshot_image_id) ⇒ Object
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# File 'lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb', line 10 def disk_format(snapshot_image_id) send("disk_format_glance_#{image_service.version}", snapshot_image_id) end |
#disk_format_glance_v1(snapshot_image_id) ⇒ Object
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# File 'lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb', line 2 def disk_format_glance_v1(snapshot_image_id) image_service.get_image(snapshot_image_id).headers['X-Image-Meta-Disk_format'] end |
#disk_format_glance_v2(snapshot_image_id) ⇒ Object
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# File 'lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb', line 6 def disk_format_glance_v2(snapshot_image_id) image_service.images.get(snapshot_image_id).disk_format end |
#download_image_data_glance_v2(image) ⇒ Object
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# File 'lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb', line 21 def download_image_data_glance_v2(image) log_prefix = "#{self.class.name}##{__method__}" image_id = image.id iname = image.name isize = image.size.to_i $log.debug "#{log_prefix}: iname = #{iname}" $log.debug "#{log_prefix}: isize = #{isize}" raise "Image: #{iname} (#{image_id}) is empty" unless isize > 0 tot = 0 tf = MiqTempfile.new(iname, :encoding => 'ascii-8bit') $log.debug "#{log_prefix}: saving image to #{tf.path}" response_block = lambda do |buf, _rem, sz| tf.write buf tot += buf.length $log.debug "#{log_prefix}: response_block: #{tot} bytes written of #{sz}" end _rv = image.download_data(:response_block => response_block) tf.close # TODO(lsmola) Fog download_data doesn't support header returned, it returns body by hard. We need to wrap the # result load_response like in Fog::OpenStack::Collection. The header will be accessible as rv.response.headers # checksum = rv.headers['Content-Md5'] # $log.debug "#{log_prefix}: Checksum: #{checksum}" if $log.debug? $log.debug "#{log_prefix}: #{`ls -l #{tf.path}`}" if $log.debug? if tf.size != isize $log.error "#{log_prefix}: Error downloading image #{iname}" $log.error "#{log_prefix}: Downloaded size does not match image size #{tf.size} != #{isize}" raise "Image download failed" end tf end |
#get_image_file_common(image_id) ⇒ Object
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# File 'lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb', line 164 def get_image_file_common(image_id) send("get_image_file_glance_#{image_service.version}", image_id) end |
#get_image_file_glance_v1(image_id) ⇒ Object
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# File 'lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb', line 114 def get_image_file_glance_v1(image_id) log_prefix = "#{self.class.name}##{__method__}" image = image_service.get_image(image_id) raise "Image #{image_id} not found" unless image $log.debug "#{log_prefix}: image = #{image.class.name}" iname = image.headers['X-Image-Meta-Name'] isize = image.headers['X-Image-Meta-Size'].to_i $log.debug "#{log_prefix}: iname = #{iname}" $log.debug "#{log_prefix}: isize = #{isize}" raise "Image: #{iname} (#{image_id}) is empty" unless isize > 0 tot = 0 tf = MiqTempfile.new(iname, :encoding => 'ascii-8bit') $log.debug "#{log_prefix}: saving image to #{tf.path}" response_block = lambda do |buf, _rem, sz| tf.write buf tot += buf.length $log.debug "#{log_prefix}: response_block: #{tot} bytes written of #{sz}" end # # We're calling the low-level request method here, because # the Fog "get image" methods don't currently support passing # a response block. We should attempt to remedy this in Fog # upstream and modify this code accordingly. # rv = image_service.request( :expects => [200, 204], :method => 'GET', :path => "images/#{image_id}", :response_block => response_block ) tf.close checksum = rv.headers['X-Image-Meta-Checksum'] $log.debug "#{log_prefix}: Checksum: #{checksum}" if $log.debug? $log.debug "#{log_prefix}: #{`ls -l #{tf.path}`}" if $log.debug? if tf.size != isize $log.error "#{log_prefix}: Error downloading image #{iname}" $log.error "#{log_prefix}: Downloaded size does not match image size #{tf.size} != #{isize}" raise "Image download failed" end tf end |
#get_image_file_glance_v2(image_id) ⇒ Object
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# File 'lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb', line 90 def get_image_file_glance_v2(image_id) log_prefix = "#{self.class.name}##{__method__}" image = image_service.images.get(image_id) raise "Image #{image_id} not found" unless image $log.debug "#{log_prefix}: image = #{image.class.name}" if image.size.to_i == 0 # try getting image from metadata; oddly the image metadata is only available if # image is queried through compute service unless (snapshot_id = (compute_service.images.get(image_id))).nil? temp_image = create_image_from_snapshot(snapshot_id, image.disk_format) begin tf = download_image_data_glance_v2(temp_image) ensure temp_image.destroy end end else tf = download_image_data_glance_v2(image) end tf end |
#get_image_metadata_snapshot_id(image) ⇒ Object
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# File 'lib/OpenStackExtract/MiqOpenStackVm/MiqOpenStackCommon.rb', line 14 def (image) image..each do |m| next if m.key != "block_device_mapping" return m.value[0]['snapshot_id'] end end |