update terraform, fix deprecated values add default_tags, fix ansible inventory (#1821)

contrib/terraform/aws/variables.tf

@@ -99,3 +99,8 @@ variable "k8s_secure_api_port" {
 variable "loadbalancer_apiserver_address" {
     description= "Bind Address for ELB of K8s API Server"
 }
+
+variable "default_tags" {
+  description = "Default tags for all resources"
+  type = "map"
+}