Hello, On 14/01/2014 02:49, Tianzhenhua wrote: > Hi All: > > I have a problem about openstack autoscaling by template! I have added 4 > networks in my system (from horizon web portal), > > (snip) > > I check the resource of > AutoScalingGroup(AWS::AutoScaling::AutoScalingGroup), I can not find > some parameters to set the Network ID. You can use the VPCZoneIdentifier property [1] with the subnet uuid: "myGroup": { "Type": "AWS::AutoScaling::AutoScalingGroup", "Properties": { ..., "VPCZoneIdentifier": [ "aa70dc7f-6dde-4eeb-92d2-bf92bcb1d03a" ] } } Note that you're limited to only one subnet id. Check this bug for more details: https://bugs.launchpad.net/heat/grizzly/+bug/1096017 Cheers, Simon [1] http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-as-group.html#cfn-as-group-vpczoneidentifier