ec2 = Aws::EC2::Client.new(region:'ap-southeast-1')

resp = ec2.describe_instances({filters: [{name:"tag:opsworks:stack", values:['qa-statemgmt-svc']}, {name:"tag:opsworks:layer:statemgmt_svc", values:['statemgmt_svc']}]})

resp = ec2.describe_instances({filters: [{name:"tag:opsworks:layer:statemgmt_svc", values:['statemgmt_svc']}]})