add possibility to setup a custom logger for kubectl configuration

This enables users to not log messages like: "Configuring Kubernetes
client using config file"

Fix gruntwork-io#1383

Signed-off-by: Charly Molter <charly.molter@konghq.com>

modules/k8s/client.go

@@ -8,7 +8,6 @@ import (
 	// See: https://github.com/kubernetes/client-go/issues/242
 	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
 
-	"github.com/gruntwork-io/terratest/modules/logger"
 	"github.com/gruntwork-io/terratest/modules/testing"
 )
 
@@ -33,25 +32,25 @@ func GetKubernetesClientFromOptionsE(t testing.TestingT, options *KubectlOptions
 		if err != nil {
 			return nil, err
 		}
-		logger.Log(t, "Configuring Kubernetes client to use the in-cluster serviceaccount token")
+		options.ConfigLogger.Logf(t, "Configuring Kubernetes client to use the in-cluster serviceaccount token")
 	} else if options.RestConfig != nil {
 		config = options.RestConfig
-		logger.Log(t, "Configuring Kubernetes client to use provided rest config object set with API server address: %s", config.Host)
+		options.ConfigLogger.Logf(t, "Configuring Kubernetes client to use provided rest config object set with API server address: %s", config.Host)
 	} else {
 		kubeConfigPath, err := options.GetConfigPath(t)
 		if err != nil {
 			return nil, err
 		}
-		logger.Logf(t, "Configuring Kubernetes client using config file %s with context %s", kubeConfigPath, options.ContextName)
+		options.ConfigLogger.Logf(t, "Configuring Kubernetes client using config file %s with context %s", kubeConfigPath, options.ContextName)
 		// Load API config (instead of more low level ClientConfig)
 		config, err = LoadApiClientConfigE(kubeConfigPath, options.ContextName)
 		if err != nil {
-			logger.Logf(t, "Error loading api client config, falling back to in-cluster authentication via serviceaccount token: %s", err)
+			options.ConfigLogger.Logf(t, "Error loading api client config, falling back to in-cluster authentication via serviceaccount token: %s", err)
 			config, err = rest.InClusterConfig()
 			if err != nil {
 				return nil, err
 			}
-			logger.Log(t, "Configuring Kubernetes client to use the in-cluster serviceaccount token")
+			options.ConfigLogger.Logf(t, "Configuring Kubernetes client to use the in-cluster serviceaccount token")
 		}
 	}
 

modules/k8s/kubectl_options.go

@@ -15,6 +15,8 @@ type KubectlOptions struct {
 	InClusterAuth bool
 	RestConfig    *rest.Config
 	Logger        *logger.Logger
+	// ConfigLogger is useful to set a different logger when configuring kubectl with a config. This can significantly reduce verbosity of tests
+	ConfigLogger *logger.Logger
 }
 
 // NewKubectlOptions will return a pointer to new instance of KubectlOptions with the configured options