Integrate openstacksdk for backup
diff --git a/requirements.txt b/requirements.txt
index 4537d1c..2fce69b 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,5 +9,5 @@
 gunicorn
 oslo.db>=5.0.0
 oslo.config>=8.1.0
-oslo.service>=2.5.0 
 oslo.log>=4.4.0 # Apache-2.0
+openstacksdk>0.28.0
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