AWS EC2 Instance Retrieve Version 1

The describe_instances function is the base AWS::EC2 gem call we are using for this handler and returns a multi-level hash/array nest with a top level hash key of "reservationsSet". The reservationSet has the following pseudo-xml form. Elements with the <item> tag are array members and are referenced by numerical index. All others are hash members and are references by element/key name. <reservationsSet> <reservationId/) <requesterId/>, <item> <groupSet> <item"> <groupId/> </item> </groupSet> <instancesSet> <item> <blockDeviceMapping> <item> <ebs> <attachTime/>, <status/>, <deleteOnTermination/>, <volumeId/>, <deviceName> </ebs> </item> <tagSet> <item> <value/> <key/> </item> </tagset>, <virtualizationType/>, <productCodes/> <ipAddress/>, <kernelId/> <amiLaunchIndex/> <clientToken/>, <privateIpAddress>, <keyName/>", <launchTime>, <instanceType/>, <imageId/>, <privateDnsName/>, <rootDeviceName/>, <rootDeviceType/> <monitoring/>", <reason/>, <placement/> <dnsName/>, <instanceId/>, <instanceState> <name/> <code/> </instanceState> </item> </instanceSet> </item> </reservationSet>, To retrieve the imageId, for example, simply flatten the above structure by removing inapplicable items <reservationsSet> <item> <instancesSet> <item> <imageId/>, </item> </instanceSet> </item> </reservationSet> Treat items as arrays and all other members as hash keys. Doing so, we can reference imageId value in the following manner: @base_aws_object.reservationSet.item[index].instancesSet.item[index].imageId In this handler, we are returning just the more interesting properties for an instance. Future versions may incorporate additional properties.

Parameters

Sample Configration

Results