platforms: add kubeconfig as Terraform output

As part of #623, which is about using kubeconfig file content rather
than kubeconfig path around, this commits adds Terraform output with
content of kubeconfig file, which can be then pulled during execution
using 'terraform output' command.

Signed-off-by: Mateusz Gozdek <mateusz@kinvolk.io>

pkg/platform/aks/template.go

@@ -223,4 +223,9 @@ output "initialized" {
   value     = true
   sensitive = true
 }
+
+output "kubeconfig" {
+  value     = azurerm_kubernetes_cluster.aks.kube_config_raw
+  sensitive = true
+}
 `

pkg/platform/aws/template.go

@@ -231,4 +231,9 @@ output "calico_values" {
   value     = module.aws-{{.Config.ClusterName}}.calico_values
   sensitive = true
 }
+
+output "kubeconfig" {
+  value     = module.aws-{{.Config.ClusterName}}.kubeconfig-admin
+  sensitive = true
+}
 `

pkg/platform/baremetal/template.go

@@ -119,4 +119,9 @@ output "calico_values" {
   value     = module.bare-metal-{{.ClusterName}}.calico_values
   sensitive = true
 }
+
+output "kubeconfig" {
+  value     = module.bare-metal-{{.ClusterName}}.kubeconfig-admin
+  sensitive = true
+}
 `

pkg/platform/packet/template.go

@@ -305,4 +305,9 @@ output "calico_values" {
   value     = module.packet-{{.Config.ClusterName}}.calico_values
   sensitive = true
 }
+
+output "kubeconfig" {
+  value     = module.packet-{{.Config.ClusterName}}.kubeconfig-admin
+  sensitive = true
+}
 `