Merge pull request #288 from kbst/test-gke-version

Use gke version data source for tests

Author: pst

tests/gke_zero_cluster.tf

@@ -1,3 +1,9 @@
+data "google_container_engine_versions" "gke_zero" {
+  project        = "terraform-kubestack-testing"
+  location       = "europe-west1"
+  version_prefix = "1."
+}
+
 module "gke_zero" {
   providers = {
     kubernetes = kubernetes.gke_zero
@@ -12,7 +18,7 @@ module "gke_zero" {
       name_prefix = "kbstacctest"
       base_domain = "infra.serverwolken.de"
 
-      cluster_min_master_version = "1.19"
+      cluster_min_master_version = data.google_container_engine_versions.gke_zero.default_cluster_version
 
       cluster_machine_type   = "e2-medium"
       cluster_min_node_count = 1