Add depot, attendant, jetfire, optimus, ota services with kustomize overlays

services/attendant/services/mongo.go

@@ -0,0 +1,32 @@
+package services
+
+import (
+	"sync"
+
+	"github.com/fiskerinc/cloud-services/pkg/mongo"
+)
+
+var (
+	clientOnce sync.Once
+	client     mongo.Client
+)
+
+// GetMongoClient returns singleton instance of mongo client
+func GetMongoClient() (mongo.Client, error) {
+	var err error
+	clientOnce.Do(func() {
+		client, err = initMongoClient()
+	})
+
+	return client, err
+}
+
+func initMongoClient() (mongo.Client, error) {
+	var err error
+
+	if client == nil {
+		client, err = mongo.NewClient(mongo.StandardDB)
+	}
+
+	return client, err
+}