diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index ef1d8a497..49e6a4cf0 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -12,6 +12,9 @@ trigger:
 pool:
   vmImage: ubuntu-latest
 
+variables:
+  System.Debug: true
+  
 steps:
 - task: Maven@3
   inputs:
@@ -45,8 +48,16 @@ steps:
     bodyFilePath: ""
     extension: 'txt'
     getSubFolders: true
+    
+- script: | 
+    ls -la $(Pipeline.Workspace)/s/src
+    touch $(Pipeline.Workspace)/s/src/ip_ranges_all_for_vf.csv
 
 - task: DeleteFiles@1
   inputs:
-    SourceFolder: '$(Pipeline.Workspace)'
-    Contents: 'src'
\ No newline at end of file
+    SourceFolder: '$(Pipeline.Workspace)/s/src' 
+    Contents: |
+      *|!(ip_ranges_all_for_vf.csv)
+    # RemoveSourceFolder: true
+
+- script: ls -la $(Pipeline.Workspace)/s/src
\ No newline at end of file