Add debug logging to kubeadm config

pkg/cluster/internal/kubeadm/config.go

@@ -19,7 +19,9 @@ package kubeadm
 import (
 	"bytes"
 	"strings"
-	"text/template"
+  "text/template"
+  log "github.com/sirupsen/logrus"
+
 
 	"github.com/pkg/errors"
 	"k8s.io/apimachinery/pkg/util/version"
@@ -440,6 +442,7 @@ metadata:
 // Config returns a kubeadm config generated from config data, in particular
 // the kubernetes version
 func Config(data ConfigData) (config string, err error) {
+  log.Debugf("Configuration Input data: %v", data)
 	ver, err := version.ParseGeneric(data.KubernetesVersion)
 	if err != nil {
 		return "", err
@@ -468,6 +471,7 @@ func Config(data ConfigData) (config string, err error) {
 	err = t.Execute(&buff, data)
 	if err != nil {
 		return "", errors.Wrap(err, "error executing config template")
-	}
+  }
+  log.Debugf("Configuration generated:\n %v", buff.String())
 	return buff.String(), nil
 }