1 files changed, 42 insertions, 0 deletions
diff --git a/pkg/k8s/client.go b/pkg/k8s/client.go
new file mode 100644
index 0000000..8861d0a
--- /dev/null
+++ b/pkg/k8s/client.go
@@ -0,0 +1,42 @@
+package k8s
+
+import (
+	"context"
+	"time"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
+	"k8s.io/client-go/rest"
+)
+
+func NewInCluster() (*kubernetes.Clientset, error) {
+	//creates the in-cluster config
+	config, err := rest.InClusterConfig()
+	if err != nil {
+		panic(err.Error())
+	}
+
+	// creates the clientset
+	clientset, err := kubernetes.NewForConfig(config)
+	if err != nil {
+		panic(err.Error())
+	}
+	return clientset, nil
+}
+
+func GetVolumeCapacity(volumeId string) (int64, error) {
+	client, err := NewInCluster()
+	if err != nil {
+		return 0, err
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	if volume, err := client.CoreV1().PersistentVolumes().Get(ctx, volumeId, metav1.GetOptions{}); err != nil {
+		return 0, err
+	} else {
+		storage := volume.Spec.Capacity.Storage()
+		capacity, _ := storage.AsInt64()
+		return capacity, nil
+	}
+}