feature #2259: Add CreateSnapshot

install.sh

@@ -1296,6 +1296,7 @@ ECO_LIB_VIEW_FILES="src/cloud/ec2/lib/views/describe_images.erb \
                     src/cloud/ec2/lib/views/describe_regions.erb \
                     src/cloud/ec2/lib/views/describe_availability_zones.erb \
                     src/cloud/ec2/lib/views/create_volume.erb \
+                    src/cloud/ec2/lib/views/create_snapshot.erb \
                     src/cloud/ec2/lib/views/create_image.erb \
                     src/cloud/ec2/lib/views/describe_volumes.erb \
                     src/cloud/ec2/lib/views/attach_volume.erb \

src/cloud/ec2/lib/ImageEC2.rb

@@ -44,7 +44,7 @@ class ImageEC2 < Image
     }
 
     ONE_IMAGE = %q{
-        NAME = "ec2-<%= uuid %>"
+        NAME = "<%= ImageEC2.generate_uuid %>"
         TYPE = <%= @image_info[:type] %>
         <% if  @image_info[:size] != nil %>
         SIZE = "<%= @image_info[:size] %>"
@@ -74,8 +74,6 @@ class ImageEC2 < Image
     end
 
     def to_one_template()
-        uuid = UUIDTools::UUID.random_create.to_s
-
         one = ERB.new(ONE_IMAGE)
         return one.result(binding)
     end
@@ -91,4 +89,8 @@ class ImageEC2 < Image
     def render_create_time
         Time.at(self["REGTIME"].to_i).xmlschema
     end
+
+    def self.generate_uuid
+        "ec2-" + UUIDTools::UUID.random_create.to_s
+    end
 end

src/cloud/ec2/lib/ebs.rb

@@ -237,4 +237,69 @@ module EBS
         return response.result(binding), 200
     end
 
+    # Creates a snapshot of an Amazon EBS volume
+    #
+    # @param [Hash] params
+    # @option params [String] VolumeId The ID of the Amazon EBS volume.
+    # @option params [Description] A description for the snapshot.
+    def create_snapshot(params)
+        image_id = params['VolumeId']
+        image_id = image_id.split('-')[1]
+
+        image = ImageEC2.new(Image.build_xml(image_id.to_i), @client)
+        rc = image.info
+        if OpenNebula::is_error?(rc) || image["TEMPLATE/EBS_VOLUME"] != "YES"
+            rc ||= OpenNebula::Error.new()
+            rc.ec2_code = "InvalidVolume.NotFound"
+            return rc
+        end
+
+        instance_id = image["TEMPLATE/EBS/INSTANCE_ID"]
+
+        if instance_id
+            # Disk snapshot
+            instance_id = instance_id.split('-')[1]
+                vm = VirtualMachine.new(
+                    VirtualMachine.build_xml(instance_id),
+                    @client)
+
+                rc = vm.info
+                if OpenNebula::is_error?(rc)
+                    rc.ec2_code = "InvalidInstanceID.NotFound"
+                    return rc
+                end
+
+                disk_id = vm["TEMPLATE/DISK[IMAGE_ID=#{image_id}]/DISK_ID"]
+                if !disk_id.nil?
+                    snapshot_id = vm.disk_snapshot(disk_id.to_i,
+                        params["Description"]||ImageEC2.generate_uuid,
+                        OpenNebula::Image::IMAGE_TYPES[image["TYPE"].to_i],
+                        true)
+
+                    if OpenNebula::is_error?(snapshot_id)
+                        return snapshot_id
+                    end
+                end
+        end
+
+        if snapshot_id.nil?
+            # Clone
+            snapshot_id = image.clone(params["Description"]||ImageEC2.generate_uuid)
+            if OpenNebula::is_error?(snapshot_id)
+                return snapshot_id
+            end
+        end
+
+        snapshot = ImageEC2.new(Image.build_xml(snapshot_id.to_i), @client)
+        rc = snapshot.info
+        if OpenNebula::is_error?(rc)
+            return rc
+        end
+
+        erb_version = params['Version']
+
+        response = ERB.new(File.read(@config[:views]+"/create_snapshot.erb"))
+        return response.result(binding), 200
+    end
+
 end

src/cloud/ec2/lib/econe_application.rb

@@ -134,6 +134,8 @@ class EC2Application
             result,rc = econe_server.describe_regions(params)
         when 'DescribeAvailabilityZones'
             result,rc = econe_server.describe_availability_zones(params)
+        when 'CreateSnapshot'
+            result,rc = econe_server.create_snapshot(params)
         when 'CreateImage'
             result,rc = econe_server.create_image(params)
         when 'CreateVolume'

src/cloud/ec2/lib/views/create_snapshot.erb

@@ -0,0 +1,11 @@
+<CreateSnapshotResponse xmlns="http://ec2.amazonaws.com/doc/2013-06-15/">
+  <requestId><%= @request_id %></requestId>
+  <snapshotId>snap-<%= sprintf('%08i', snapshot["ID"]) %></snapshotId>
+  <volumeId><%= params["VolumeId"] %></volumeId>
+  <status><%= snapshot.render_state %></status>
+  <startTime><%= snapshot.render_create_time %></startTime>
+  <progress>100%</progress>
+  <ownerId><%= snapshot["UNAME"] %></ownerId>
+  <volumeSize><%= snapshot.render_size %></volumeSize>
+  <description><%= snapshot["NAME"] %></description>
+</CreateSnapshotResponse>